Common Issues with the Volkswagen LT 35: A Comprehensive Guide
By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on March 28, 20241.1. Issues by Model Year
1.2. Issues by Model and Trim Level
1.3. Issues by Generation
2. Common Engine Problems
2.1. Lack of Power or Poor Performance
2.2. Engine Misfires
2.3. Engine Overheating
3. Common Transmission Problems
3.1. Transmission Slipping or Shuddering
3.2. Transmission Fluid Leaks
3.3. Transmission Failure
4. Common Electrical Problems
4.1. Battery and Charging System Issues
4.2. Starter Motor Problems
4.3. Fuse and Wiring Problems
5. Common Brake Problems
5.1. Brake Pads and Rotors Wear
5.2. Brake Caliper Problems
5.3. ABS System Malfunctions
6. Common Suspension and Steering Problems
6.1. Worn Ball Joints and Control Arms
6.2. Steering Components Wear
6.3. Shock Absorber and Strut Wear
7. Common Fuel System Problems
7.1. Fuel Pump Failure
7.2. Fuel Injectors Clogging
7.3. Fuel Filter Clogging
8. Common Cooling System Problems
8.1. Leaks in the Cooling System
8.2. Radiator or Thermostat Failure
8.3. Water Pump Failure
9. Common Air Conditioning Problems
9.1. Refrigerant Leaks
9.2. Compressor Failure
9.3. Blower Motor Problems
10. Conclusion
Frequently Asked Questions (FAQ) about Volkswagen LT 35 Issues
Example List of Volkswagen LT 35 Engine Error Codes and Descriptions
1. Common Issues with Volkswagen LT 35
1.1. Issues by Model Year
The Volkswagen LT 35 has been a popular choice for commercial vehicle owners and enthusiasts alike, thanks to its durability, versatility, and overall functionality. However, like any vehicle, the LT 35 has its fair share of common issues that owners should be aware of. Here are some of the common issues with the LT 35 based on model year:For early model years, rust and corrosion on the body is a common issue, especially on vehicles that were driven in areas with harsh winters or frequent exposure to road salt. Electrical problems, including issues with the alternator and battery, can also occur in early model years. Additionally, suspension and steering problems, such as worn ball joints and steering components, can lead to handling and stability issues.
In the mid-2000s, transmission issues became a common problem for the Volkswagen LT 35. Owners reported transmission slipping, hard shifting, and even complete transmission failure, especially on higher mileage vehicles. Issues with the air conditioning and heating system also emerged in these model years. Fuel system problems, such as clogged fuel injectors and fuel pump failure, were also reported.
For later model years, the LT 35 experienced dashboard and instrument cluster problems, such as faulty gauges and warning lights. Cooling system issues, including leaks and overheating, were also reported. Additionally, electrical problems, such as faulty wiring and sensors, became a common issue.
1.2. Issues by Model and Trim Level
The Volkswagen LT 35 has been produced in a variety of model years and trim levels, each with its own unique set of features and specifications. However, with that said, there are some common issues that owners of certain model and trim levels should be aware of.For the base model LT 35, owners have reported issues with the electrical system, such as battery and alternator failure. Additionally, some owners have experienced transmission issues, including hard shifting and slipping. Suspension and steering components have also been known to wear out prematurely, causing handling and stability issues.
For the LT 35 TDI, owners have reported issues with the turbocharger and fuel injectors, which can lead to reduced power and fuel economy. Additionally, owners have experienced problems with the air conditioning system, including compressor failure and refrigerant leaks.
For the LT 35 TDI LWB, owners have reported problems with the vehicle's brakes, including premature wear of brake pads and rotors. Additionally, issues with the cooling system, including radiator and water pump failure, have been reported.
For the LT 35 TDI High Roof, owners have reported problems with the vehicle's electrical system, including issues with the alternator and battery. Additionally, problems with the air conditioning system, including blower motor failure, have been reported.
1.3. Issues by Generation
The Volkswagen LT 35 has gone through several generations over the years, each with its own unique set of features and improvements. However, like any vehicle, there are some common issues that owners of certain generations should be aware of.For the first generation LT 35, which was produced from 1975 to 1996, rust and corrosion on the body was a common issue, especially on vehicles that were driven in areas with harsh winters or frequent exposure to road salt. Additionally, electrical problems, including issues with the alternator and battery, could occur. Suspension and steering problems, such as worn ball joints and steering components, could also lead to handling and stability issues.
For the second generation LT 35, which was produced from 1996 to 2006, transmission issues became a common problem. Owners reported transmission slipping, hard shifting, and even complete transmission failure, especially on higher mileage vehicles. Issues with the air conditioning and heating system also emerged in these model years. Fuel system problems, such as clogged fuel injectors and fuel pump failure, were also reported.
For the third generation LT 35, which was produced from 2006 to 2017, dashboard and instrument cluster problems became a common issue, such as faulty gauges and warning lights. Cooling system issues, including leaks and overheating, were also reported. Additionally, electrical problems, such as faulty wiring and sensors, became a common issue.
2. Common Engine Problems
2.1. Lack of Power or Poor Performance
If you're experiencing a lack of power or poor performance in your Volkswagen LT 35, there are several common engine problems that could be the cause.One possible culprit is a clogged air filter. A dirty or clogged air filter can restrict airflow to the engine, leading to reduced power and acceleration. Replacing the air filter regularly can help prevent this issue.
Another potential problem is a failing fuel pump. The fuel pump is responsible for delivering fuel from the gas tank to the engine. If the fuel pump is failing, it can result in a lack of power and poor performance. If you notice that your LT 35 is struggling to accelerate or has trouble starting, it could be a sign of a failing fuel pump.
A malfunctioning mass airflow sensor (MAF) is another common cause of poor performance in the Volkswagen LT 35. The MAF sensor measures the amount of air entering the engine and adjusts the fuel injection accordingly. If the MAF sensor is faulty or dirty, it can lead to inaccurate readings and poor performance. Cleaning or replacing the MAF sensor can often solve this problem.
A faulty oxygen sensor can also cause a lack of power or poor performance in the LT 35. The oxygen sensor measures the amount of oxygen in the exhaust and sends a signal to the engine computer to adjust the air/fuel ratio. If the oxygen sensor is malfunctioning, it can cause the engine to run too rich or too lean, leading to poor performance. Replacing the oxygen sensor can often solve this issue.
Finally, a clogged catalytic converter can also cause poor performance in the LT 35. The catalytic converter is responsible for reducing emissions by converting harmful gases into less harmful ones. If the catalytic converter becomes clogged, it can restrict exhaust flow and lead to poor performance. Replacing the catalytic converter is the only solution to this problem.
2.2. Engine Misfires
Engine misfires are a common problem that can occur in the Volkswagen LT 35. A misfire occurs when one or more cylinders in the engine fail to ignite properly, resulting in a rough running engine, loss of power, and reduced fuel economy. There are several common causes of engine misfires in the LT 35.One possible cause of engine misfires is a faulty ignition coil. The ignition coil is responsible for providing the spark that ignites the fuel in the combustion chamber. If the ignition coil is failing or has failed, it can result in a misfire. Replacing the ignition coil can often solve this problem.
Another potential cause of engine misfires is a clogged fuel injector. Fuel injectors are responsible for delivering fuel to the engine, and if they become clogged or dirty, it can result in a misfire. Cleaning or replacing the fuel injector can often solve this issue.
A failing spark plug is another common cause of engine misfires in the LT 35. Spark plugs are responsible for creating the spark that ignites the fuel in the combustion chamber. If the spark plug is worn out or damaged, it can result in a misfire. Replacing the spark plugs regularly can help prevent this issue.
A faulty engine control module (ECM) can also cause engine misfires in the LT 35. The ECM is responsible for controlling various engine functions, including fuel injection and ignition timing. If the ECM is malfunctioning, it can result in a misfire. Replacing the ECM may be necessary to solve this problem.
Finally, a clogged air filter can also cause engine misfires. A dirty or clogged air filter can restrict airflow to the engine, resulting in a misfire. Replacing the air filter regularly can help prevent this issue.
2.3. Engine Overheating
Engine overheating is a common problem that can occur in the Volkswagen LT 35. Overheating can cause severe damage to the engine if left unchecked, so it's important to address the issue promptly. There are several common causes of engine overheating in the LT 35.One possible cause of engine overheating is a malfunctioning thermostat. The thermostat is responsible for regulating the flow of coolant through the engine. If the thermostat fails in the closed position, it can prevent coolant from flowing through the engine, causing it to overheat. Replacing the thermostat can often solve this problem.
Another potential cause of engine overheating is a leaking or damaged radiator. The radiator is responsible for removing heat from the engine coolant. If the radiator is leaking or damaged, it may not be able to cool the coolant effectively, resulting in engine overheating. Repairing or replacing the radiator may be necessary to solve this issue.
A faulty water pump can also cause engine overheating in the LT 35. The water pump is responsible for circulating coolant through the engine. If the water pump fails, coolant may not be able to circulate properly, resulting in engine overheating. Replacing the water pump can often solve this problem.
Low coolant levels can also cause engine overheating. If the coolant level in the engine is too low, there may not be enough coolant to properly regulate the engine's temperature. Checking and maintaining proper coolant levels can help prevent this issue.
Finally, a clogged or damaged cooling system can also cause engine overheating. Over time, the cooling system can become clogged with dirt and debris, reducing its effectiveness. Regular maintenance, including flushing the cooling system and replacing the coolant, can help prevent this issue.
3. Common Transmission Problems
3.1. Transmission Slipping or Shuddering
Transmission slipping or shuddering is a common problem that can occur in the Volkswagen LT 35. This problem is often caused by issues with the transmission fluid or the transmission itself.Low or dirty transmission fluid is a common cause of transmission slipping or shuddering. Transmission fluid helps to lubricate the transmission and keep it cool, but over time, the fluid can become dirty or contaminated. Low fluid levels can also cause the transmission to slip or shudder. Regularly checking and changing the transmission fluid can help prevent this issue.
Another possible cause of transmission slipping or shuddering is a worn or damaged clutch. The clutch is responsible for engaging and disengaging the transmission from the engine. Over time, the clutch can become worn or damaged, leading to transmission problems. Replacing the clutch may be necessary to solve this issue.
A faulty torque converter can also cause transmission slipping or shuddering in the LT 35. The torque converter is responsible for transferring power from the engine to the transmission. If the torque converter fails, it may not be able to transfer power properly, resulting in transmission problems. Replacing the torque converter can often solve this problem.
Finally, a damaged or worn transmission itself can cause slipping or shuddering. Over time, the internal components of the transmission can become worn or damaged, leading to transmission problems. Rebuilding or replacing the transmission may be necessary to solve this issue.
3.2. Transmission Fluid Leaks
Transmission fluid leaks are a common problem that can occur in the Volkswagen LT 35. Transmission fluid is essential for the proper functioning of the transmission, and a leak can cause the transmission to fail if left untreated.Transmission fluid leaks can be caused by a variety of issues, including a damaged or worn transmission pan gasket, a faulty axle seal, or a cracked transmission case. It's important to identify the location of the leak to determine the best course of action.
A damaged or worn transmission pan gasket is a common cause of transmission fluid leaks in the LT 35. The gasket helps to seal the transmission pan, which holds the transmission fluid. Over time, the gasket can become worn or damaged, leading to leaks. Replacing the gasket is often necessary to solve this issue.
Faulty axle seals can also cause transmission fluid leaks in the LT 35. The axle seals help to prevent transmission fluid from leaking out of the axle shafts. Over time, the seals can become worn or damaged, leading to leaks. Replacing the axle seals is often necessary to solve this issue.
Finally, a cracked transmission case can cause transmission fluid leaks in the LT 35. The transmission case holds the internal components of the transmission, and a crack can allow fluid to leak out. In this case, replacing the transmission case may be necessary to solve the issue.
3.3. Transmission Failure
One of the most serious issues that can occur with the Volkswagen LT 35 is transmission failure. This problem can arise due to a variety of reasons and can be costly to repair. Here are some of the common causes and symptoms of transmission failure in the Volkswagen LT 35.One of the most common causes of transmission failure is wear and tear on the internal components of the transmission. Over time, the gears, bearings, and other components can become worn and damaged, leading to a loss of functionality. This can result in a number of symptoms, including difficulty shifting gears, slipping gears, and strange noises coming from the transmission.
Another common cause of transmission failure in the Volkswagen LT 35 is overheating. This can occur due to a lack of transmission fluid, a malfunctioning transmission cooler, or other issues. Overheating can cause the transmission fluid to break down and become less effective, leading to increased friction and wear on the internal components.
In some cases, transmission failure in the Volkswagen LT 35 may be due to a manufacturing defect or a faulty component. This can include issues with the clutch, torque converter, or other parts of the transmission. These problems may be covered by a warranty or recall program, depending on the specific issue and the age of the vehicle.
Symptoms of transmission failure in the Volkswagen LT 35 may include slipping or shuddering gears, difficulty shifting gears, strange noises coming from the transmission, and a burning smell. If you notice any of these symptoms, it's important to have your vehicle inspected by a qualified mechanic as soon as possible to determine the cause of the issue.
Repairing a transmission failure in the Volkswagen LT 35 can be costly, and in some cases, it may be more economical to replace the entire transmission rather than attempting to repair it. Regular maintenance, such as changing the transmission fluid and inspecting the transmission for wear and damage, can help prevent transmission failure and extend the life of your vehicle.
4. Common Electrical Problems
4.1. Battery and Charging System Issues
The Volkswagen LT 35 may also experience various electrical issues, particularly with its battery and charging system. Here are some of the common problems and solutions:1. Dead Battery - One of the most common issues with any vehicle is a dead battery. If the LT 35 battery is not holding a charge or is not able to start the engine, it could be due to a faulty alternator, corroded battery terminals, or a parasitic draw on the battery. A technician can perform a battery and charging system test to determine the root cause of the problem and recommend the necessary repairs or replacements.
2. Faulty Alternator - A malfunctioning alternator may cause the battery to die quickly, as it is responsible for recharging the battery while the engine is running. Symptoms of a failing alternator include dimming headlights, warning lights on the dashboard, or a grinding noise coming from the engine. If an alternator replacement is needed, it is important to choose a high-quality replacement to prevent future problems.
3. Corroded Battery Terminals - Corrosion on the battery terminals can cause poor electrical connections, which can prevent the battery from charging properly. If the battery terminals are corroded, they should be cleaned with a battery terminal cleaner and wire brush. In severe cases, the terminals may need to be replaced.
4. Parasitic Draw - A parasitic draw occurs when an electrical component continues to draw power from the battery even when the vehicle is turned off. This can cause the battery to drain and lead to starting problems. Common causes of parasitic draws include faulty alternators, interior lights left on, or aftermarket accessories that were improperly installed. A technician can use a multimeter to measure the current draw and identify the source of the problem.
5. Wiring Issues - Faulty wiring or loose connections can cause various electrical issues in the LT 35, including starting problems, warning lights on the dashboard, or intermittent power loss. Wiring issues can be challenging to diagnose, so it is best to consult with a professional technician who can use specialized diagnostic equipment to pinpoint the problem.
4.2. Starter Motor Problems
The starter motor is a crucial component of the vehicle's electrical system, responsible for turning the engine over when the ignition key is turned. Over time, starter motor problems can arise, causing starting issues and affecting the overall performance of the vehicle. Here are some common starter motor problems that Volkswagen LT 35 owners may encounter:1. Faulty solenoid: The solenoid is responsible for transmitting an electrical current to the starter motor to engage the flywheel. A faulty solenoid can result in a clicking sound when turning the ignition key, but the engine fails to start.
2. Worn-out starter motor: Starter motors can become worn out due to age, overuse, or poor maintenance. Signs of a worn-out starter motor include slow cranking or no cranking at all when the ignition key is turned.
3. Corroded or loose connections: Corrosion or loose connections in the starter motor circuit can cause starting issues, resulting in intermittent or no power to the starter motor.
4. Dead battery: A dead battery is a common cause of starter motor failure, as the motor requires a sufficient amount of power to turn over the engine.
If you encounter any of these problems with your Volkswagen LT 35, it is recommended to have your starter motor inspected by a qualified mechanic. Regular maintenance, such as checking the connections and cleaning any corrosion, can help prevent starter motor issues. Additionally, replacing the battery as recommended by the manufacturer can help prevent starting issues caused by low battery power.
4.3. Fuse and Wiring Problems
Volkswagen LT 35 vehicles can experience issues with their electrical systems, particularly with fuses and wiring. Common problems include blown fuses, loose or corroded connections, and damaged or frayed wires. These issues can cause a range of symptoms, including malfunctioning lights, power windows or locks, and audio systems.In some cases, electrical problems in the LT 35 can be caused by faulty wiring harnesses or connectors. Over time, the wiring can become damaged by wear and tear or exposure to the elements. This can cause the wiring to short out or break, leading to a variety of electrical issues.
Another common cause of electrical problems in the LT 35 is a failing alternator or battery. The alternator is responsible for charging the battery and powering the electrical system, so if it is not functioning properly, it can cause a range of electrical problems. Similarly, a weak or failing battery can cause issues with starting the engine or powering the vehicle's electrical components.
If you are experiencing electrical problems with your LT 35, it is important to have the issue diagnosed and repaired by a qualified mechanic. They will be able to identify the root cause of the problem and provide a suitable solution, which may involve repairing or replacing damaged wiring or components, or installing a new battery or alternator.
5. Common Brake Problems
5.1. Brake Pads and Rotors Wear
The brakes on a Volkswagen LT 35 are an essential component of the vehicle's safety system. Over time, the brake pads and rotors can wear down and require replacement. If not addressed, worn brake components can lead to decreased braking performance and even brake failure.One common issue with the LT 35's brake system is excessive brake pad wear. This can be caused by a number of factors, including aggressive driving, poor quality brake pads, or faulty calipers. Symptoms of excessive brake pad wear may include a squeaking or grinding noise when the brakes are applied, longer stopping distances, or a pulsating brake pedal.
Another common issue with the brake system is rotor wear. The rotors can become worn or warped over time, causing vibrations in the brake pedal or steering wheel when the brakes are applied. This can also cause uneven brake pad wear, further exacerbating the problem.
To address these issues, it's important to have the brake system inspected regularly and to replace worn brake components as needed. High-quality brake pads and rotors should be used to ensure proper braking performance and longevity. Additionally, ensuring proper brake fluid levels and addressing any leaks in the brake system can help prevent further damage to the brakes.
Overall, it's important to address any brake problems as soon as they are detected to ensure the safety and reliability of the vehicle.
5.2. Brake Caliper Problems
The brake caliper is a critical component of the braking system in the Volkswagen LT 35. It is responsible for applying the brake pads to the rotor, which slows down the vehicle. Over time, the brake caliper can experience wear and tear, leading to various issues.One common problem with brake calipers is sticking or seizing. This occurs when the caliper piston does not retract correctly, causing the brake pads to remain in contact with the rotor even when the brakes are not applied. Sticking or seizing can result in reduced braking performance, as well as increased wear on the brake pads and rotor.
Another issue that can arise with brake calipers is leaks. If the caliper housing or piston seal is damaged, brake fluid can leak out. This can lead to a loss of braking power and can also cause damage to other brake components.
In some cases, the brake caliper can become damaged due to corrosion or impact. This can cause the caliper to bind or seize, leading to a loss of braking power. Additionally, damaged brake calipers can cause uneven wear on the brake pads and rotor, resulting in reduced braking performance and increased maintenance costs.
Regular inspection and maintenance of the brake calipers is essential to prevent these problems. If you notice any issues with your brakes, such as reduced braking performance, grinding or squealing noises, or vibrations when braking, it is important to have your brakes checked by a qualified mechanic as soon as possible.
5.3. ABS System Malfunctions
The ABS (anti-lock brake system) is an important safety feature that prevents wheels from locking up during hard braking, allowing the driver to maintain steering control. However, like any other component of the braking system, the ABS system in the Volkswagen LT 35 may experience malfunctions.One common issue with the ABS system is a malfunctioning ABS sensor. The ABS sensor is responsible for measuring the wheel speed and sending signals to the ABS module to control brake pressure. If the ABS sensor fails, it may send incorrect signals to the ABS module, causing the ABS system to malfunction.
Another common issue is a faulty ABS module. The ABS module controls the ABS system by receiving signals from the ABS sensor and determining the appropriate brake pressure. If the ABS module fails, it may not be able to control the brake pressure properly, leading to a malfunctioning ABS system.
A third issue is a malfunctioning brake pressure sensor. The brake pressure sensor is responsible for measuring the brake pressure in the system and sending signals to the ABS module. If the brake pressure sensor fails, it may send incorrect signals to the ABS module, causing the ABS system to malfunction.
Finally, the ABS system may malfunction due to a blown fuse or a wiring issue. A blown fuse or faulty wiring can cause the ABS system to lose power or fail to receive signals from the ABS sensor or module, leading to a malfunctioning ABS system.
It's important to address any issues with the ABS system as soon as possible, as a malfunctioning system can compromise the safety of the vehicle. If you notice any warning lights or unusual behavior from the ABS system, it's recommended to have the vehicle inspected by a qualified mechanic.
6. Common Suspension and Steering Problems
6.1. Worn Ball Joints and Control Arms
One of the common suspension and steering problems found in the Volkswagen LT 35 is worn ball joints and control arms. Ball joints and control arms are vital components of the suspension system that allow the wheels to move up and down independently of the body while maintaining their proper alignment. Over time, these parts can wear out due to normal wear and tear or a lack of proper maintenance, causing various issues.Some signs of worn ball joints and control arms include a clunking or popping sound when driving over bumps, uneven tire wear, steering wheel vibration, and a loose or imprecise steering feel. If left unaddressed, worn ball joints and control arms can cause further damage to the suspension and steering system, leading to costly repairs.
Regular inspection and maintenance of the suspension system, including the ball joints and control arms, can help prevent these issues from occurring. If any of the symptoms of worn ball joints or control arms are noticed, it is important to have the vehicle inspected by a qualified mechanic who can diagnose the problem and perform the necessary repairs. In some cases, replacing the worn components may be necessary to restore proper suspension and steering function.
6.2. Steering Components Wear
The Volkswagen LT 35, like any vehicle, is prone to wear and tear, especially when it comes to its steering components. Common problems include worn ball joints, tie rod ends, and control arms, which can lead to poor handling, uneven tire wear, and potentially dangerous driving conditions.Ball joints are the pivot points that connect the steering knuckles to the control arms, and they allow the front wheels to turn left and right. Over time, the ball joints can wear out, causing looseness in the steering and vibrations at high speeds. In extreme cases, worn ball joints can cause the front wheels to collapse, resulting in a loss of control of the vehicle.
Tie rod ends are the links between the steering rack and the steering knuckles, and they help to transfer steering inputs from the steering wheel to the front wheels. When tie rod ends wear out, they can cause the vehicle to pull to one side, making it difficult to maintain a straight line while driving.
Control arms, also known as A-arms, are responsible for holding the wheel assembly in place and maintaining proper alignment. If control arms become worn, they can cause the vehicle to shake and vibrate, especially during acceleration or when going over bumps.
It is important to have these steering components inspected regularly and replaced as needed to ensure safe and reliable driving. Drivers should also be aware of any unusual noises, vibrations, or handling issues and have them checked by a qualified mechanic to prevent further damage and ensure the safety of everyone on the road.
6.3. Shock Absorber and Strut Wear
The Volkswagen LT 35 is a popular commercial vehicle that can experience wear and tear in its suspension and steering components. One of the most common issues is the wear of shock absorbers and struts. Shock absorbers and struts are vital components of the suspension system that help to dampen the force of road bumps and keep the vehicle stable during cornering.Over time, shock absorbers and struts can wear out and lose their effectiveness. This can cause a rough ride and poor handling, as well as reduced braking performance. Signs of worn shock absorbers or struts may include excessive bouncing or swaying when driving over bumps, uneven tire wear, or a noticeable decrease in ride comfort.
Replacing worn shock absorbers and struts can help to restore the vehicle's handling and braking performance, as well as improve ride comfort. It is important to have these components inspected regularly by a qualified technician to catch any issues before they lead to more significant problems.
In some cases, the suspension system may need to be upgraded or replaced entirely. Upgrading to high-performance shocks and struts can provide better handling and stability, especially for vehicles that carry heavy loads or frequently travel on rough roads. A qualified technician can recommend the best suspension system for the vehicle based on its specific needs and usage.
7. Common Fuel System Problems
7.1. Fuel Pump Failure
The fuel pump is an essential component of the vehicle's fuel system that supplies fuel from the tank to the engine. In the Volkswagen LT 35, fuel pump failure is a common problem that can lead to various issues with the vehicle's performance. One of the primary causes of fuel pump failure is contamination of the fuel tank, which can cause the pump to wear out quickly.Symptoms of a failing fuel pump in the Volkswagen LT 35 include engine sputtering, stalling, and difficulty starting. The engine may also experience a lack of power, especially at high speeds. In some cases, the fuel pump may also emit a high-pitched whine or grinding noise when it is failing.
Regular maintenance of the fuel system can help prevent fuel pump failure. This includes changing the fuel filter on a regular basis and ensuring that the fuel tank is clean and free from contaminants. If a fuel pump failure is suspected, it is important to have the vehicle inspected by a qualified mechanic as soon as possible. In some cases, the fuel pump may need to be replaced to restore proper vehicle operation.
7.2. Fuel Injectors Clogging
The fuel injectors are one of the most critical components of the fuel system in a Volkswagen LT 35. The injectors are responsible for spraying a precise amount of fuel into the engine's combustion chamber at precisely the right time. Over time, fuel injectors can become clogged or develop other issues that can cause problems with the engine's performance.One of the most common issues with fuel injectors is clogging. When the injectors become clogged, they can't deliver fuel to the engine properly, leading to a variety of performance problems. Symptoms of clogged fuel injectors include engine misfires, rough idling, and a decrease in fuel efficiency.
Other issues that can occur with fuel injectors include leaks and damage to the injector's electrical connections. Leaks can cause fuel to escape from the injectors, leading to fuel odors, reduced fuel efficiency, and a risk of fire. Damage to the electrical connections can cause issues with the injector's operation, leading to poor engine performance.
Regular maintenance, such as fuel system cleanings, can help prevent fuel injectors from becoming clogged or damaged. If you suspect that your Volkswagen LT 35 is experiencing fuel injector issues, it's important to have a professional mechanic diagnose and repair the problem as soon as possible to prevent further damage to the engine.
7.3. Fuel Filter Clogging
The fuel filter in a Volkswagen LT 35 is an essential component of the fuel system. Its primary function is to filter out any dirt, debris, or other contaminants from the fuel before it enters the engine. Over time, the fuel filter can become clogged and dirty, leading to a variety of problems with the engine and fuel system.One of the most common symptoms of a clogged fuel filter is a loss of engine power. The engine may struggle to start or may hesitate during acceleration. This is because the clogged filter restricts the flow of fuel to the engine, reducing its performance.
Another sign of a clogged fuel filter is rough idling. The engine may vibrate or shake when idling, and it may stall or hesitate when coming to a stop. This is because the clogged filter disrupts the fuel flow, leading to irregular combustion in the engine.
In some cases, a clogged fuel filter may cause the engine to misfire or backfire. This occurs when the fuel flow is disrupted to the point where the engine is not receiving enough fuel to operate correctly. This can cause damage to the engine over time, leading to costly repairs.
Regular maintenance of the fuel system, including changing the fuel filter on a regular basis, is essential to prevent these issues from occurring. It is recommended to replace the fuel filter every 20,000 to 30,000 miles or as per the manufacturer's recommendations. By doing so, you can ensure that your Volkswagen LT 35 runs smoothly and efficiently.
8. Common Cooling System Problems
8.1. Leaks in the Cooling System
One of the most common problems with the Volkswagen LT 35's cooling system is leaks. Leaks can occur in various parts of the cooling system, such as the radiator, hoses, water pump, and coolant reservoir. A leak can lead to a loss of coolant, which can cause the engine to overheat and damage other components.The cooling system of the Volkswagen LT 35 is responsible for regulating the engine's temperature and ensuring it doesn't overheat. The system works by circulating coolant through the engine, radiator, and other components to dissipate the heat generated by the engine.
Leaks can occur due to various reasons, such as worn-out or damaged hoses, a cracked radiator or coolant reservoir, or a faulty water pump. Over time, the hoses and other components of the cooling system may deteriorate and become prone to leaks. Also, exposure to extreme temperatures can cause damage to the cooling system components, leading to leaks.
If a leak is detected, it's essential to have it repaired as soon as possible to avoid further damage to the engine. Driving with a leaking cooling system can lead to overheating, which can cause severe damage to the engine and other components. Regular maintenance and inspection of the cooling system can help prevent leaks and ensure that the cooling system is functioning correctly.
8.2. Radiator or Thermostat Failure
The cooling system of the Volkswagen LT 35 is responsible for regulating the temperature of the engine and preventing it from overheating. Two common issues that can occur in this system are radiator or thermostat failure.The radiator is responsible for dissipating the heat generated by the engine. Over time, it may develop leaks or become clogged with debris, reducing its effectiveness. If the radiator fails to cool the engine properly, the engine may overheat, causing damage to internal components. Radiator replacement is necessary if it has leaks or is clogged.
The thermostat is a valve that regulates the flow of coolant between the engine and the radiator. When the engine is cold, the thermostat remains closed, allowing the engine to warm up quickly. As the engine reaches operating temperature, the thermostat opens, allowing coolant to flow to the radiator to cool the engine. If the thermostat fails to open or close properly, the engine may overheat, leading to costly engine repairs. A faulty thermostat must be replaced to prevent further damage to the engine.
Regular maintenance of the cooling system, including flushing and refilling the coolant, can prevent radiator or thermostat failure. It is also important to address any leaks or overheating issues immediately to prevent further damage to the engine.
8.3. Water Pump Failure
The water pump is a crucial component of the cooling system in the Volkswagen LT 35. It is responsible for circulating the coolant throughout the engine and maintaining a consistent temperature to prevent overheating. However, over time, the water pump may fail and require replacement.One common sign of a failing water pump is a coolant leak. The water pump is located at the front of the engine and is typically driven by a belt. If the water pump begins to leak, coolant will begin to pool underneath the vehicle or drip onto the ground. It is important to address any coolant leaks immediately, as a low coolant level can cause the engine to overheat and lead to costly damage.
Another symptom of a failing water pump is overheating. If the water pump is not able to circulate coolant properly, the engine may overheat, causing damage to various components such as the head gasket or cylinder head. If the engine temperature gauge shows that the engine is running hot, it is important to have the cooling system inspected to determine the cause.
In addition to leaks and overheating, a failing water pump may also produce unusual noises. As the bearings inside the pump wear out, they may begin to make a whining or grinding sound. If left unaddressed, a failed water pump can cause severe engine damage and result in expensive repairs.
Regular maintenance and inspections of the cooling system can help prevent water pump failure. It is recommended to have the water pump inspected at least once a year or as part of regular maintenance to ensure that it is in good working condition. If a water pump replacement is necessary, it is important to choose a quality replacement part and have it installed by a professional mechanic to ensure proper function and prevent further damage to the engine.
9. Common Air Conditioning Problems
9.1. Refrigerant Leaks
The Volkswagen LT 35 is a popular commercial van that has been in production since 1975. One of the common issues faced by owners is refrigerant leaks in the air conditioning system. This can be caused by various reasons, including damage to the hoses or fittings, failed seals, or even a faulty compressor.Refrigerant leaks can affect the efficiency of the air conditioning system, resulting in poor cooling performance. If the refrigerant levels are low, the compressor may not be able to function properly, which can cause it to overheat and fail. In addition, low refrigerant levels can cause the evaporator and condenser coils to freeze, which can also impact the cooling performance.
To diagnose refrigerant leaks in the LT 35, a mechanic will typically perform a visual inspection of the air conditioning system to check for any visible signs of leaks, such as oil stains or wet spots. They may also use a leak detection kit that uses fluorescent dye to identify any leaks in the system. Once the source of the leak has been identified, the mechanic will then repair or replace the faulty component.
It is important to address refrigerant leaks promptly to avoid further damage to the air conditioning system and ensure optimal cooling performance. Regular maintenance of the air conditioning system, including checking refrigerant levels and replacing worn hoses and fittings, can help prevent refrigerant leaks and prolong the lifespan of the system.
9.2. Compressor Failure
The air conditioning system of the Volkswagen LT 35 relies on a compressor to circulate refrigerant throughout the system. Compressor failure is one of the most common air conditioning problems experienced by vehicle owners.One of the most common causes of compressor failure is lack of use. The air conditioning system is not used regularly, causing the compressor to seize up or lose lubrication, which can cause it to fail. Another cause of compressor failure is overuse. The compressor may be overworked, leading to overheating and damage to the compressor components.
Other factors that can contribute to compressor failure include low refrigerant levels, which can cause the compressor to work harder than it should, and contamination of the refrigerant with moisture, dirt or other debris. This can cause damage to the compressor and other components of the air conditioning system.
Symptoms of compressor failure include the air conditioning system not producing cool air, unusual noises coming from the compressor, and leaks in the refrigerant lines. It is important to have a trained mechanic diagnose and repair compressor problems, as attempting to repair the compressor without the proper tools and knowledge can lead to further damage and costly repairs.
Regular maintenance of the air conditioning system can help prevent compressor failure. This includes having the system checked for leaks, replacing the refrigerant when necessary, and running the air conditioning system for a few minutes each month, even in the winter, to keep the compressor lubricated and prevent it from seizing up.
9.3. Blower Motor Problems
The blower motor is an essential component of the air conditioning system in a Volkswagen LT 35. It is responsible for pushing cool air through the vents and into the cabin. When the blower motor fails, it can cause a range of problems, including reduced cooling performance or no cool air at all.One of the most common issues with blower motors is worn or damaged bearings. Over time, the bearings can wear out due to constant use, causing the blower motor to become noisy and vibrate excessively. This can result in a loss of cooling performance, as well as potential damage to the blower motor itself.
Another issue that can occur with blower motors is a malfunctioning resistor. The resistor controls the speed of the blower motor, and when it fails, the motor may only work on one speed, or not at all. This can make it difficult to regulate the temperature in the cabin, and can also lead to overheating and damage to the blower motor.
In some cases, the blower motor itself may fail and need to be replaced. This can occur due to a variety of reasons, including wear and tear, damage to the motor's internal components, or electrical issues.
If you notice any issues with your Volkswagen LT 35's air conditioning system, including reduced cooling performance, strange noises or vibrations, or difficulty regulating the temperature, it is important to have it inspected by a qualified mechanic. They can diagnose and repair any problems with the blower motor or other components, ensuring that your air conditioning system is functioning properly and keeping you comfortable on the road.
10. Conclusion
As a commercial vehicle, the Volkswagen LT 35 is subject to various types of wear and tear that can cause problems in its systems. Some of the most common issues include brake problems such as worn brake pads and rotors, brake caliper malfunctions, and ABS system malfunctions. The suspension and steering system can also be affected by worn ball joints, control arms, and steering components. In addition, the shock absorbers and struts can experience wear and tear over time.In terms of the fuel system, the Volkswagen LT 35 can experience fuel pump failure, clogging of fuel injectors, and clogging of fuel filters. These issues can cause the engine to stall or run inefficiently. The cooling system can also experience problems, such as leaks in the system, radiator or thermostat failure, and water pump failure. These issues can cause the engine to overheat, which can lead to serious damage.
Finally, the air conditioning system can experience problems such as refrigerant leaks, compressor failure, and blower motor problems. These issues can cause the air conditioning system to malfunction, which can be uncomfortable for passengers, especially in hot weather.
Overall, regular maintenance and prompt repair of any issues can help keep the Volkswagen LT 35 running smoothly and prevent more serious problems from developing. It's important to address any problems as soon as they arise to avoid costly repairs down the line.
Example List of Volkswagen LT 35 Engine Error Codes and Descriptions
Engine Code/Name | Engine Specs (L, Fuel, HP) | Part Car | Error Code | Description |
---|---|---|---|---|
BNZ | 2.5L TDI, Diesel, 109 HP | Turbocharger | P0234 | Turbocharger Overboost Condition |
AXD | 2.5L TDI, Diesel, 130 HP | Fuel System | P0087 | Fuel Rail/System Pressure Too Low |
AXD | 2.5L TDI, Diesel, 130 HP | EGR System | P0400 | Exhaust Gas Recirculation (EGR) Flow Malfunction |
AXD | 2.5L TDI, Diesel, 130 HP | Mass Air Flow (MAF) Sensor | P0101 | MAF Sensor Circuit Range/Performance Problem |
AXD | 2.5L TDI, Diesel, 130 HP | Exhaust System | P0473 | Exhaust Gas Pressure Sensor Circuit High Input |
AXD | 2.5L TDI, Diesel, 130 HP | Throttle Body | P0638 | Throttle Actuator Control Range/Performance Problem |
AXD | 2.5L TDI, Diesel, 130 HP | Glow Plug System | P0670 | Glow Plug Control Circuit Malfunction |
AXD | 2.5L TDI, Diesel, 130 HP | Oxygen Sensor | P0135 | O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1) |
AXD | 2.5L TDI, Diesel, 130 HP | Intake Manifold | P2002 | Diesel Particulate Filter Efficiency Below Threshold |
AXD | 2.5L TDI, Diesel, 130 HP | Crankshaft Position (CKP) Sensor | P0335 | CKP Sensor Circuit Malfunction |
AES | 2.8L VR6, Gasoline, 174 HP | Fuel System | P0171 | System Too Lean (Bank 1) |
AES | 2.8L VR6, Gasoline, 174 HP | EGR System | P0400 | Exhaust Gas Recirculation (EGR) Flow Malfunction |
AES | 2.8L VR6, Gasoline, 174 HP | Ignition System | P0300 | Random/Multiple Cylinder Misfire Detected |
AES | 2.8L VR6, Gasoline, 174 HP | Mass Air Flow (MAF) Sensor | P0102 | MAF Sensor Circuit Low Input |
AES | 2.8L VR6, Gasoline, 174 HP | Throttle Body | P0121 | Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem |
AES | 2.8L VR6, Gasoline, 174 HP | Oxygen Sensor | P0134 | O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1) |
AAF | 2.3L Petrol, Gasoline, 98 HP | Ignition System | P0301 | Cylinder 1 Misfire Detected |
AAF | 2.3L Petrol, Gasoline, 98 HP | Fuel System | P0171 | System Too Lean (Bank 1) |
AAF | 2.3L Petrol, Gasoline, 98 HP | Mass Air Flow (MAF) Sensor | P0100 | MAF Sensor Circuit Malfunction |
AAF | 2.3L Petrol, Gasoline, 98 HP | Oxygen Sensor | P0130 | O2 Sensor Circuit Malfunction (Bank 1, Sensor 1) |
AAF | 2.3L Petrol, Gasoline, 98 HP | Throttle Body | P0121 | Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem |
AAF | 2.3L Petrol, Gasoline, 98 HP | Exhaust System | P0432 | Catalyst System Efficiency Below Threshold (Bank 2) |
AAF | 2.3L Petrol, Gasoline, 98 HP | Idle Air Control (IAC) Valve | P0505 | IAC System Malfunction |
AAF | 2.3L Petrol, Gasoline, 98 HP | Crankshaft Position (CKP) Sensor | P0335 | CKP Sensor Circuit Malfunction |
AAF | 2.3L Petrol, Gasoline, 98 HP | Engine Control Module (ECM) | P0606 | ECM/PCM Processor Fault |
AAF | 2.3L Petrol, Gasoline, 98 HP | Intake Manifold | P2008 | Intake Manifold Runner Control Circuit/Open (Bank 1) |
ABL | 1.9L TDI, Diesel, 68 HP | Fuel System | P0087 | Fuel Rail/System Pressure Too Low |
ABL | 1.9L TDI, Diesel, 68 HP | EGR System | P0400 | Exhaust Gas Recirculation (EGR) Flow Malfunction |
ABL | 1.9L TDI, Diesel, 68 HP | Turbocharger | P0299 | Turbocharger/Supercharger Underboost Condition |
ABL | 1.9L TDI, Diesel, 68 HP | Mass Air Flow (MAF) Sensor | P0101 | MAF Sensor Circuit Range/Performance Problem |
ABL | 1.9L TDI, Diesel, 68 HP | Throttle Body | P0638 | Throttle Actuator Control Range/Performance Problem |
ABL | 1.9L TDI, Diesel, 68 HP | Glow Plug System | P0670 | Glow Plug Control Circuit Malfunction |
ABL | 1.9L TDI, Diesel, 68 HP | Oxygen Sensor | P0130 | O2 Sensor Circuit Malfunction (Bank 1, Sensor 1) |
ABL | 1.9L TDI, Diesel, 68 HP | Diesel Particulate Filter (DPF) | P2002 | Diesel Particulate Filter Efficiency Below Threshold (Bank 1) |
ABL | 1.9L TDI, Diesel, 68 HP | Intake Manifold | P2008 | Intake Manifold Runner Control Circuit/Open (Bank 1) |
ABL | 1.9L TDI, Diesel, 68 HP | Exhaust Gas Temperature (EGT) Sensor | P0544 | EGT Sensor Circuit Range/Performance Problem |
ABL | 1.9L TDI, Diesel, 68 HP | Engine Control Module (ECM) | P0606 | ECM/PCM Processor Fault |
ABL | 1.9L TDI, Diesel, 68 HP | Camshaft Position (CMP) Sensor | P0340 | CMP Sensor Circuit Malfunction |
ABL | 1.9L TDI, Diesel, 68 HP | Crankshaft Position (CKP) Sensor | P0335 | CKP Sensor Circuit Malfunction |
ABL | 1.9L TDI, Diesel, 68 HP | Fuel Injector Control Circuit | P0200 | Injector Control Circuit Malfunction |
ABL | 1.9L TDI, Diesel, 68 HP | Engine Coolant Temperature (ECT) Sensor | P0118 | ECT Sensor Circuit High Input |
ABL | 1.9L TDI, Diesel, 68 HP | Brake Booster Pressure Sensor | P0571 | Brake Booster Pressure Sensor Circuit Range/Performance Problem |
AJT | 2.5L TDI, Diesel, 109 HP | Turbocharger | P0299 | Turbocharger/Supercharger Underboost |
AJT | 2.5L TDI, Diesel, 109 HP | Exhaust Gas Recirculation (EGR) Valve | P0403 | EGR Control Circuit Malfunction |
AJT | 2.5L TDI, Diesel, 109 HP | Fuel Injection Pump | P0251 | Fuel Injection Pump Control Circuit/Open |
AJT | 2.5L TDI, Diesel, 109 HP | Mass Air Flow (MAF) Sensor | P0102 | MAF Sensor Circuit Low Input |
AJT | 2.5L TDI, Diesel, 109 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AJT | 2.5L TDI, Diesel, 109 HP | Glow Plug Control Module | P0670 | Glow Plug Control Module Control Circuit Malfunction |
AXD | 2.5L TDI, Diesel, 131 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | EGR Flow Insufficient Detected |
AXD | 2.5L TDI, Diesel, 131 HP | Intake Manifold Flap | P2015 | Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance |
AXD | 2.5L TDI, Diesel, 131 HP | Exhaust Gas Temperature (EGT) Sensor | P0544 | EGT Sensor Circuit Range/Performance Problem |
AXD | 2.5L TDI, Diesel, 131 HP | Diesel Particulate Filter (DPF) | P2002 | Diesel Particulate Filter Efficiency Below Threshold (Bank 1) |
AES | 2.8L VR6, Gasoline, 204 HP | Oxygen Sensor | P0134 | O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1) |
AES | 2.8L VR6, Gasoline, 204 HP | Throttle Position Sensor (TPS) | P0121 | TPS Circuit Range/Performance Problem |
AES | 2.8L VR6, Gasoline, 204 HP | Mass Air Flow (MAF) Sensor | P0101 | MAF Sensor Circuit Range/Performance Problem |
AES | 2.8L VR6, Gasoline, 204 HP | Fuel Pressure Regulator | P0089 | Fuel Pressure Regulator Performance |
AES | 2.8L VR6, Gasoline, 204 HP | Camshaft Position (CMP) Sensor | P0343 | CMP Sensor Circuit High Input |
AXK | 2.8L VR6, Gasoline, 158 HP | Oxygen Sensor | P0130 | O2 Sensor Circuit Malfunction (Bank 1, Sensor 1) |
AXK | 2.8L VR6, Gasoline, 158 HP | Engine Control Module (ECM) | P0601 | ECM/PCM Power Relay Control Circuit/Open |
AXK | 2.8L VR6, Gasoline, 158 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AXK | 2.8L VR6, Gasoline, 158 HP | Mass Air Flow (MAF) Sensor | P0102 | MAF Sensor Circuit Low Input |
AXK | 2.8L VR6, Gasoline, 158 HP | Ignition Coil | P0351 | Ignition Coil "A" Primary/Secondary Circuit Malfunction |
AAF | 2.3L Petrol, Gasoline, 108 HP | Oxygen Sensor | P0134 | O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1) |
AAF | 2.3L Petrol, Gasoline, 108 HP | Ignition Coil | P0351 | Ignition Coil "A" Primary/Secondary Circuit Malfunction |
AAF | 2.3L Petrol, Gasoline, 108 HP | Throttle Position Sensor (TPS) | P0121 | TPS Circuit Range/Performance Problem |
AAF | 2.3L Petrol, Gasoline, 108 HP | Mass Air Flow (MAF) Sensor | P0101 | MAF Sensor Circuit Range/Performance Problem |
AAF | 2.3L Petrol, Gasoline, 108 HP | Fuel Pressure Regulator | P0089 | Fuel Pressure Regulator Performance |
AEN | 2.3L Petrol, Gasoline, 140 HP | Oxygen Sensor | P0135 | O2 Sensor Circuit Malfunction (Bank 1, Sensor 1) |
AEN | 2.3L Petrol, Gasoline, 140 HP | Engine Control Module (ECM) | P0601 | ECM/PCM Power Relay Control Circuit/Open |
AEN | 2.3L Petrol, Gasoline, 140 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AEN | 2.3L Petrol, Gasoline, 140 HP | Mass Air Flow (MAF) Sensor | P0102 | MAF Sensor Circuit Low Input |
AEN | 2.3L Petrol, Gasoline, 140 HP | Ignition Coil | P0351 | Ignition Coil "A" Primary/Secondary Circuit Malfunction |
AHD | 2.5L Diesel, Diesel, 102 HP | Glow Plug Control Module | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
AHD | 2.5L Diesel, Diesel, 102 HP | Exhaust Gas Recirculation (EGR) Valve | P0403 | EGR Control Circuit Malfunction |
AHD | 2.5L Diesel, Diesel, 102 HP | Fuel Pressure Sensor | P0190 | Fuel Rail Pressure Sensor Circuit Malfunction |
AHD | 2.5L Diesel, Diesel, 102 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AHD | 2.5L Diesel, Diesel, 102 HP | Boost Pressure Sensor | P0236 | Turbo/Super Charger Boost Sensor A Circuit Range/Performance |
AXD | 2.5L Diesel, Diesel, 130 HP | Fuel Pressure Regulator | P0087 | Fuel Rail/System Pressure Too Low |
AXD | 2.5L Diesel, Diesel, 130 HP | Exhaust Gas Recirculation (EGR) Valve | P0403 | EGR Control Circuit Malfunction |
AXD | 2.5L Diesel, Diesel, 130 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AXD | 2.5L Diesel, Diesel, 130 HP | Boost Pressure Sensor | P0234 | Turbo/Super Charger Overboost Condition |
AXD | 2.5L Diesel, Diesel, 130 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
AHD | 2.8L Diesel, Diesel, 90 HP | Glow Plug Control Module | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
AHD | 2.8L Diesel, Diesel, 90 HP | Fuel Pressure Sensor | P0190 | Fuel Rail Pressure Sensor Circuit Malfunction |
AHD | 2.8L Diesel, Diesel, 90 HP | Exhaust Gas Recirculation (EGR) Valve | P0403 | EGR Control Circuit Malfunction |
AHD | 2.8L Diesel, Diesel, 90 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AHD | 2.8L Diesel, Diesel, 90 HP | Boost Pressure Sensor | P0236 | Turbo/Super Charger Boost Sensor A Circuit Range/Performance |
AYY | 2.8L Diesel, Diesel, 158 HP | Fuel Pressure Regulator | P0087 | Fuel Rail/System Pressure Too Low |
AYY | 2.8L Diesel, Diesel, 158 HP | Exhaust Gas Recirculation (EGR) Valve | P0403 | EGR Control Circuit Malfunction |
AYY | 2.8L Diesel, Diesel, 158 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AYY | 2.8L Diesel, Diesel, 158 HP | Boost Pressure Sensor | P0234 | Turbo/Super Charger Overboost Condition |
AYY | 2.8L Diesel, Diesel, 158 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
ACK | 2.8L Gasoline, Gasoline, 158 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
ACK | 2.8L Gasoline, Gasoline, 158 HP | Fuel Pressure Regulator | P0087 | Fuel Rail/System Pressure Too Low |
ACK | 2.8L Gasoline, Gasoline, 158 HP | Mass Air Flow (MAF) Sensor | P0101 | Mass Air Flow (MAF) Circuit Range/Performance Problem |
ACK | 2.8L Gasoline, Gasoline, 158 HP | Intake Air Temperature (IAT) Sensor | P0113 | Intake Air Temperature (IAT) Circuit High Input |
ACK | 2.8L Gasoline, Gasoline, 158 HP | Camshaft Position (CMP) Sensor | P0340 | Camshaft Position (CMP) Sensor Circuit Malfunction |
AES | 2.8L Gasoline, Gasoline, 140 HP | Throttle Position Sensor (TPS) | P0122 | TPS Circuit Low Input |
AES | 2.8L Gasoline, Gasoline, 140 HP | Fuel Pressure Regulator | P0087 | Fuel Rail/System Pressure Too Low |
AES | 2.8L Gasoline, Gasoline, 140 HP | Mass Air Flow (MAF) Sensor | P0101 | Mass Air Flow (MAF) Circuit Range/Performance Problem |
AES | 2.8L Gasoline, Gasoline, 140 HP | Intake Air Temperature (IAT) Sensor | P0113 | Intake Air Temperature (IAT) Circuit High Input |
AES | 2.8L Gasoline, Gasoline, 140 HP | Camshaft Position (CMP) Sensor | P0340 | Camshaft Position (CMP) Sensor Circuit Malfunction |
AXD | 2.5L Diesel, Diesel, 109 HP | Turbocharger | P0299 | Turbocharger/Supercharger Underboost |
AXD | 2.5L Diesel, Diesel, 109 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | Exhaust Gas Recirculation (EGR) Flow Insufficient |
AXD | 2.5L Diesel, Diesel, 109 HP | Fuel Pressure Regulator | P0087 | Fuel Rail/System Pressure Too Low |
AXD | 2.5L Diesel, Diesel, 109 HP | Mass Air Flow (MAF) Sensor | P0101 | Mass Air Flow (MAF) Circuit Range/Performance Problem |
AXD | 2.5L Diesel, Diesel, 109 HP | Glow Plugs | P0670 | Glow Plug Control Circuit Malfunction |
BAC | 2.5L Diesel, Diesel, 130 HP | Turbocharger | P0299 | Turbocharger/Supercharger Underboost |
BAC | 2.5L Diesel, Diesel, 130 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | Exhaust Gas Recirculation (EGR) Flow Insufficient |
BAC | 2.5L Diesel, Diesel, 130 HP | Fuel Pressure Regulator | P0087 | Fuel Rail/System Pressure Too Low |
BAC | 2.5L Diesel, Diesel, 130 HP | Mass Air Flow (MAF) Sensor | P0101 | Mass Air Flow (MAF) Circuit Range/Performance Problem |
BAC | 2.5L Diesel, Diesel, 130 HP | Glow Plugs | P0670 | Glow Plug Control Circuit Malfunction |
AES | 2.8L Gasoline, Gasoline, 204 HP | Throttle Body | P0638 | Throttle Actuator Control Range/Performance |
AES | 2.8L Gasoline, Gasoline, 204 HP | Ignition Coil | P0351 | Ignition Coil A Primary/Secondary Circuit Malfunction |
AES | 2.8L Gasoline, Gasoline, 204 HP | Oxygen Sensor | P0130 | Oxygen Sensor Circuit Malfunction (Bank 1, Sensor 1) |
AES | 2.8L Gasoline, Gasoline, 204 HP | Catalytic Converter | P0420 | Catalyst System Efficiency Below Threshold (Bank 1) |
AES | 2.8L Gasoline, Gasoline, 204 HP | Mass Air Flow (MAF) Sensor | P0102 | Mass Air Flow (MAF) Circuit Low Input |
AES | 2.8L Gasoline, Gasoline, 204 HP | Fuel Injectors | P0201 | Injector Circuit/Open - Cylinder 1 |
AES | 2.8L Gasoline, Gasoline, 204 HP | Camshaft Position Sensor | P0341 | Camshaft Position Sensor "A" Circuit Range/Performance |
AXK | 2.8L Gasoline, Gasoline, 158 HP | Throttle Body | P0638 | Throttle Actuator Control Range/Performance |
AXK | 2.8L Gasoline, Gasoline, 158 HP | Ignition Coil | P0351 | Ignition Coil A Primary/Secondary Circuit Malfunction |
AXK | 2.8L Gasoline, Gasoline, 158 HP | Oxygen Sensor | P0130 | Oxygen Sensor Circuit Malfunction (Bank 1, Sensor 1) |
AXD | 2.5L Diesel, Diesel, 130 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | Exhaust Gas Recirculation Flow Insufficient Detected |
AXD | 2.5L Diesel, Diesel, 130 HP | Fuel Injectors | P0202 | Injector Circuit/Open - Cylinder 2 |
AXD | 2.5L Diesel, Diesel, 130 HP | Mass Air Flow (MAF) Sensor | P0101 | Mass Air Flow (MAF) Circuit Range/Performance |
AXD | 2.5L Diesel, Diesel, 130 HP | Camshaft Position Sensor | P0340 | Camshaft Position Sensor "A" Circuit Malfunction |
AXD | 2.5L Diesel, Diesel, 130 HP | Turbocharger Boost Pressure Sensor | P0234 | Turbocharger/Supercharger "A" Overboost Condition |
AXD | 2.5L Diesel, Diesel, 130 HP | Exhaust Gas Temperature Sensor | P0544 | Exhaust Gas Temperature Sensor Circuit Range/Performance |
AXD | 2.5L Diesel, Diesel, 130 HP | Diesel Particulate Filter (DPF) | P2463 | Diesel Particulate Filter - Soot Accumulation |
AXE | 2.5L Diesel, Diesel, 102 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | Exhaust Gas Recirculation Flow Insufficient Detected |
AXE | 2.5L Diesel, Diesel, 102 HP | Fuel Injectors | P0201 | Injector Circuit/Open - Cylinder 1 |
AXE | 2.5L Diesel, Diesel, 102 HP | Mass Air Flow (MAF) Sensor | P0101 | Mass Air Flow (MAF) Circuit Range/Performance |
AES | 2.8L Gasoline, Gasoline, 201 HP | Ignition Coil | P0353 | Ignition Coil "C" Primary/Secondary Circuit |
AES | 2.8L Gasoline, Gasoline, 201 HP | Fuel Pump | P0230 | Fuel Pump Primary Circuit Malfunction |
AES | 2.8L Gasoline, Gasoline, 201 HP | Oxygen Sensor | P0135 | O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1) |
AES | 2.8L Gasoline, Gasoline, 201 HP | Throttle Position Sensor | P0122 | Throttle/Pedal Position Sensor/Switch "A" Circuit Low |
AES | 2.8L Gasoline, Gasoline, 201 HP | Exhaust Gas Recirculation (EGR) Valve | P0400 | Exhaust Gas Recirculation Flow Malfunction |
AES | 2.8L Gasoline, Gasoline, 201 HP | Coolant Temperature Sensor | P0118 | Engine Coolant Temperature (ECT) Circuit High Input |
AES | 2.8L Gasoline, Gasoline, 201 HP | Knock Sensor | P0327 | Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) |
AXK | 2.8L Gasoline, Gasoline, 158 HP | Ignition Coil | P0353 | Ignition Coil "C" Primary/Secondary Circuit |
AXK | 2.8L Gasoline, Gasoline, 158 HP | Fuel Pump | P0230 | Fuel Pump Primary Circuit Malfunction |
AXK | 2.8L Gasoline, Gasoline, 158 HP | Oxygen Sensor | P0135 | O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1) |
AHD | 2.5L Diesel, Diesel, 109 HP | Glow Plug | P0670 | Glow Plug Control Circuit Malfunction |
AHD | 2.5L Diesel, Diesel, 109 HP | Fuel Pressure Sensor | P0190 | Fuel Rail Pressure Sensor Circuit Malfunction |
AHD | 2.5L Diesel, Diesel, 109 HP | Turbocharger Boost Sensor | P0234 | Turbocharger/Supercharger "A" Overboost Condition |
AHD | 2.5L Diesel, Diesel, 109 HP | Exhaust Gas Recirculation (EGR) Valve | P0400 | Exhaust Gas Recirculation Flow Malfunction |
AHD | 2.5L Diesel, Diesel, 109 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AYY | 2.5L Diesel, Diesel, 130 HP | Glow Plug | P0670 | Glow Plug Control Circuit Malfunction |
AYY | 2.5L Diesel, Diesel, 130 HP | Fuel Pressure Sensor | P0190 | Fuel Rail Pressure Sensor Circuit Malfunction |
AYY | 2.5L Diesel, Diesel, 130 HP | Turbocharger Boost Sensor | P0234 | Turbocharger/Supercharger "A" Overboost Condition |
AYY | 2.5L Diesel, Diesel, 130 HP | Exhaust Gas Recirculation (EGR) Valve | P0400 | Exhaust Gas Recirculation Flow Malfunction |
AYY | 2.5L Diesel, Diesel, 130 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AES | 2.8L Gasoline, Gasoline, 201 HP | Oxygen (O2) Sensor | P0135 | O2 Sensor Circuit Malfunction (Bank 1 Sensor 1) |
AES | 2.8L Gasoline, Gasoline, 201 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AES | 2.8L Gasoline, Gasoline, 201 HP | Throttle Body | P0121 | Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance |
AES | 2.8L Gasoline, Gasoline, 201 HP | Ignition Coils | P0300 | Random/Multiple Cylinder Misfire Detected |
AES | 2.8L Gasoline, Gasoline, 201 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Oxygen (O2) Sensor | P0135 | O2 Sensor Circuit Malfunction (Bank 1 Sensor 1) |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Throttle Body | P0121 | Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Ignition Coils | P0300 | Random/Multiple Cylinder Misfire Detected |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
AHD | 2.5L Diesel, Diesel, 109 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | EGR Flow Insufficient Detected |
AHD | 2.5L Diesel, Diesel, 109 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AHD | 2.5L Diesel, Diesel, 109 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
AHD | 2.5L Diesel, Diesel, 109 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
AHD | 2.5L Diesel, Diesel, 109 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
AXG | 2.5L Diesel, Diesel, 150 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | EGR Flow Insufficient Detected |
AXG | 2.5L Diesel, Diesel, 150 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AXG | 2.5L Diesel, Diesel, 150 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
AXG | 2.5L Diesel, Diesel, 150 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
AXG | 2.5L Diesel, Diesel, 150 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
AJS | 2.8L Diesel, Diesel, 158 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | EGR Flow Insufficient Detected |
AJS | 2.8L Diesel, Diesel, 158 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AJS | 2.8L Diesel, Diesel, 158 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
AJS | 2.8L Diesel, Diesel, 158 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
AJS | 2.8L Diesel, Diesel, 158 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
AUF | 2.8L Diesel, Diesel, 158 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | EGR Flow Insufficient Detected |
AUF | 2.8L Diesel, Diesel, 158 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
AUF | 2.8L Diesel, Diesel, 158 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
AUF | 2.8L Diesel, Diesel, 158 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
AUF | 2.8L Diesel, Diesel, 158 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
BJJ | 2.5L Diesel, Diesel, 109 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | EGR Flow Insufficient Detected |
BJJ | 2.5L Diesel, Diesel, 109 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
BJJ | 2.5L Diesel, Diesel, 109 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
BJJ | 2.5L Diesel, Diesel, 109 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
BJJ | 2.5L Diesel, Diesel, 109 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
BJK | 2.5L Diesel, Diesel, 136 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | EGR Flow Insufficient Detected |
BJK | 2.5L Diesel, Diesel, 136 HP | Mass Airflow (MAF) Sensor | P0102 | Mass or Volume Air Flow Circuit Low Input |
BJK | 2.5L Diesel, Diesel, 136 HP | Fuel Injector | P0200 | Injector Circuit Malfunction |
BJK | 2.5L Diesel, Diesel, 136 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
BJK | 2.5L Diesel, Diesel, 136 HP | Exhaust Pressure Sensor | P0471 | Exhaust Pressure Sensor Range/Performance |
AES | 2.8L Gasoline, Gasoline, 201 HP | Mass Airflow (MAF) Sensor | P0101 | Mass or Volume Air Flow Circuit Range/Performance Problem |
AES | 2.8L Gasoline, Gasoline, 201 HP | Oxygen (O2) Sensor | P0130 | O2 Sensor Circuit Malfunction (Bank 1 Sensor 1) |
AES | 2.8L Gasoline, Gasoline, 201 HP | Throttle Body | P0221 | Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance Problem |
AES | 2.8L Gasoline, Gasoline, 201 HP | Ignition Coil | P0353 | Ignition Coil "C" Circuit Malfunction |
AES | 2.8L Gasoline, Gasoline, 201 HP | Fuel Injector | P0203 | Injector Circuit Malfunction - Cylinder 3 |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Mass Airflow (MAF) Sensor | P0101 | Mass or Volume Air Flow Circuit Range/Performance Problem |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Oxygen (O2) Sensor | P0130 | O2 Sensor Circuit Malfunction (Bank 1 Sensor 1) |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Throttle Body | P0221 | Throttle/Pedal Position Sensor/Switch "B" Circuit Range/Performance Problem |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Ignition Coil | P0353 | Ignition Coil "C" Circuit Malfunction |
AXK | 2.8L Gasoline, Gasoline, 201 HP | Fuel Injector | P0203 | Injector Circuit Malfunction - Cylinder 3 |
AHD | 2.5L Diesel, Diesel, 109 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | Exhaust Gas Recirculation Flow Insufficient Detected |
AHD | 2.5L Diesel, Diesel, 109 HP | Turbocharger | P0299 | Turbocharger/Supercharger "A" Underboost Condition |
AHD | 2.5L Diesel, Diesel, 109 HP | Fuel Injector | P0203 | Injector Circuit Malfunction - Cylinder 3 |
AHD | 2.5L Diesel, Diesel, 109 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
AHD | 2.5L Diesel, Diesel, 109 HP | Mass Airflow (MAF) Sensor | P0101 | Mass or Volume Air Flow Circuit Range/Performance Problem |
ANJ | 2.5L Diesel, Diesel, 128 HP | Exhaust Gas Recirculation (EGR) Valve | P0401 | Exhaust Gas Recirculation Flow Insufficient Detected |
ANJ | 2.5L Diesel, Diesel, 128 HP | Turbocharger | P0299 | Turbocharger/Supercharger "A" Underboost Condition |
ANJ | 2.5L Diesel, Diesel, 128 HP | Fuel Injector | P0203 | Injector Circuit Malfunction - Cylinder 3 |
ANJ | 2.5L Diesel, Diesel, 128 HP | Glow Plug | P0380 | Glow Plug/Heater Circuit "A" Malfunction |
ANJ | 2.5L Diesel, Diesel, 128 HP | Mass Airflow (MAF) Sensor | P0101 | Mass or Volume Air Flow Circuit Range/Performance Problem |
Frequently Asked Questions (FAQ) about Volkswagen LT 35 Issues
What are some common issues with the Volkswagen LT 35?
What transmission problems are common with the Volkswagen LT 35?
What electrical system problems are common with the Volkswagen LT 35?
What suspension problems are common with the Volkswagen LT 35?
What engine problems are common with the Volkswagen LT 35?
What are some issues specific to the 1996-2000 Volkswagen LT 35 models?
What are some issues specific to the 2001-2006 Volkswagen LT 35 models?
What are some issues specific to the 2.5-liter TDI engine in the Volkswagen LT 35?
What are some issues specific to the panel van model of the Volkswagen LT 35?
What are some issues specific to the minibus model of the Volkswagen LT 35?
What are some issues specific to the chassis cab model of the Volkswagen LT 35?
What are the common issues with the electrical system of Volkswagen LT 35?
Are there any transmission issues that commonly occur in Volkswagen LT 35?
What is the common suspension problem with Volkswagen LT 35 models?
How often should I perform maintenance on my Volkswagen LT 35?
Are there any model years or engine types of Volkswagen LT 35 that are particularly prone to issues?
What are some common issues with the 2.5-liter TDI engine in the Volkswagen LT 35?
Are there any common problems with the electrical system in the Volkswagen LT 35?
What should I look out for when it comes to the suspension in the Volkswagen LT 35?
Can problems with the transmission be a common issue in the Volkswagen LT 35?
How important is regular maintenance in preventing issues with the Volkswagen LT 35?
Are there any issues specific to the minibus models of the Volkswagen LT 35?
What are some common issues with the chassis cab models of the Volkswagen LT 35?
What should I do if I experience issues with my Volkswagen LT 35?
Are there any known electrical issues with the Volkswagen LT 35?
Are there any common issues with the transmission of the Volkswagen LT 35?
Can regular maintenance help prevent issues with the Volkswagen LT 35?
Is it common to experience issues with the suspension of the Volkswagen LT 35?
What are the most common issues that owners of the Volkswagen LT 35 have reported?
Brian Wong / AuthorBrian Wong is an accomplished automotive journalist and editor with a passion for cars. With over a decade of experience in the industry, he has established himself as a trusted voice in the automotive community. Brian has written extensively about a wide range of topics in the field, from the latest trends in car design to innovative safety features and emerging technologies. As a senior reviews editor, he is responsible for test driving and analyzing the latest cars on the market, providing readers with accurate and objective reviews. His articles are widely read and respected for their depth of knowledge and analysis. Brian is committed to staying at the forefront of the latest developments in the automotive industry, and is dedicated to sharing his expertise and insights with his readers. |