Common Issues with BMW 730d: Troubleshooting and Solutions

By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on March 21, 2023

1. Issues with the BMW 730d by Year

1.1. 2002-2008 BMW 730d

The BMW 730d is a luxury sedan that was produced from 2002 to 2008. While the car offered advanced features and a powerful engine, it also experienced some issues during its production years.

One common issue with the 2002-2005 models of the BMW 730d was a faulty timing chain. This issue could cause significant engine damage if not addressed promptly. BMW acknowledged this issue and issued a recall to replace the timing chain. However, if the car was not brought in for repair, it could lead to engine failure.

Another issue that affected the BMW 730d during its production years was related to the fuel injectors. Specifically, the injectors were prone to leaking and could cause engine misfires or decreased performance. While this issue was not as severe as the faulty timing chain, it could still lead to engine damage if not addressed.

In addition to these specific issues, the BMW 730d was also known to experience more general problems that could affect its performance and reliability. For example, the car's suspension system could wear out over time, leading to a bumpy or uncomfortable ride. Additionally, the car's electrical system could experience issues, ranging from minor problems with dashboard displays to more serious issues with the car's battery or alternator.

Despite these issues, the BMW 730d remained a popular choice for those looking for a luxury sedan with advanced features and powerful performance. By staying up-to-date with regular maintenance and addressing any issues promptly, owners of the BMW 730d could enjoy a reliable and enjoyable driving experience.

1.2. 2008-2015 BMW 730d

The BMW 730d continued to be a popular luxury sedan model in the years following the 2008 release of the fifth-generation model. However, as with any car, the 2008-2015 BMW 730d experienced some issues that owners should be aware of.

One common issue with the 2008-2012 models of the BMW 730d was related to the diesel particulate filter (DPF). The DPF is designed to capture harmful emissions and prevent them from being released into the atmosphere. However, if the filter becomes clogged, it can cause significant engine damage and decreased performance. Some owners reported issues with the DPF becoming clogged prematurely, leading to costly repairs.

Another issue that affected the BMW 730d during this time period was related to the car's fuel system. Specifically, the car's fuel injectors were prone to failure, leading to decreased performance and increased fuel consumption. Some owners reported that the fuel injectors needed to be replaced multiple times, leading to frustration and costly repairs.

In addition to these specific issues, the BMW 730d was also known to experience more general problems that could affect its performance and reliability. For example, the car's electrical system could experience issues with the battery or alternator, leading to starting or charging problems. Additionally, the car's suspension system could wear out over time, leading to a bumpy or uncomfortable ride.

Despite these issues, the BMW 730d continued to offer a comfortable and luxurious driving experience with advanced features and powerful performance. By staying up-to-date with regular maintenance and addressing any issues promptly, owners of the BMW 730d could enjoy a reliable and enjoyable driving experience.

1.3. 2015-present BMW 730d

The current generation of the BMW 730d has been praised for its luxurious interior, advanced features, and powerful engine. However, like any car, the 2015-present BMW 730d has experienced some issues that owners should be aware of.

One issue that has been reported with the current generation of the BMW 730d is related to the car's suspension system. Specifically, some owners have reported that the car's air suspension can fail, leading to a bumpy ride and decreased performance. Additionally, some owners have reported issues with the car's steering, with some drivers experiencing a "dead spot" in the steering wheel that can make it difficult to control the car at higher speeds.

Another issue that has been reported with the current generation of the BMW 730d is related to the car's electronics. Some owners have reported issues with the car's infotainment system, with the screen freezing or becoming unresponsive. Additionally, some owners have reported issues with the car's automatic transmission, with some drivers experiencing rough shifting or delayed gear changes.

In addition to these specific issues, the BMW 730d may also experience more general problems that can affect its performance and reliability. For example, the car's brakes may wear out over time, leading to decreased stopping power and increased braking distances. Additionally, the car's engine may experience issues with carbon buildup, which can lead to decreased performance and increased fuel consumption.

Despite these issues, the BMW 730d continues to be a popular choice for those seeking a luxury sedan with advanced features and powerful performance. By staying up-to-date with regular maintenance and addressing any issues promptly, owners of the BMW 730d can enjoy a reliable and enjoyable driving experience.

2. Issues with the BMW 730d by Model and Engine Type

2.1. BMW 730d with N57D30O0 Engine

The BMW 730d with the N57D30O0 engine is a popular choice for those seeking a luxury sedan with impressive performance and fuel efficiency. However, like any car, the BMW 730d with this engine has experienced some issues that owners should be aware of.

One issue that has been reported with the BMW 730d with the N57D30O0 engine is related to the car's emissions system. Specifically, some owners have reported issues with the diesel particulate filter (DPF), which can become clogged over time and lead to decreased engine performance and increased fuel consumption. Additionally, some owners have reported issues with the car's AdBlue system, which can cause the car to go into limp mode if it fails.

Another issue that has been reported with the BMW 730d with the N57D30O0 engine is related to the car's timing chain. Specifically, some owners have reported issues with the timing chain stretching or breaking, which can cause engine damage and costly repairs. Additionally, some owners have reported issues with the car's turbochargers, with some drivers experiencing turbo failure or reduced turbo performance over time.

In addition to these specific issues, the BMW 730d with the N57D30O0 engine may also experience more general problems that can affect its performance and reliability. For example, the car's brakes may wear out over time, leading to decreased stopping power and increased braking distances. Additionally, the car's suspension system may experience wear and tear over time, leading to a bumpy ride and decreased performance.

Despite these issues, the BMW 730d with the N57D30O0 engine continues to be a popular choice for those seeking a luxurious and powerful sedan. By staying up-to-date with regular maintenance and addressing any issues promptly, owners of the BMW 730d with this engine can enjoy a reliable and enjoyable driving experience.

2.2. BMW 730d with B57D30O0 Engine

The BMW 730d with the B57D30O0 engine is a newer model that offers improved performance and efficiency over its predecessors. However, as with any car, there are some issues that owners of the BMW 730d with this engine should be aware of.

One issue that has been reported with the BMW 730d with the B57D30O0 engine is related to the car's emissions system. Specifically, some owners have reported issues with the selective catalytic reduction (SCR) system, which can cause the car to go into limp mode if it fails. Additionally, some owners have reported issues with the car's diesel particulate filter (DPF), which can become clogged over time and lead to decreased engine performance and increased fuel consumption.

Another issue that has been reported with the BMW 730d with the B57D30O0 engine is related to the car's timing chain. Specifically, some owners have reported issues with the timing chain stretching or breaking, which can cause engine damage and costly repairs. Additionally, some owners have reported issues with the car's turbochargers, with some drivers experiencing turbo failure or reduced turbo performance over time.

In addition to these specific issues, the BMW 730d with the B57D30O0 engine may also experience more general problems that can affect its performance and reliability. For example, the car's brakes may wear out over time, leading to decreased stopping power and increased braking distances. Additionally, the car's suspension system may experience wear and tear over time, leading to a bumpy ride and decreased performance.

Despite these issues, the BMW 730d with the B57D30O0 engine continues to be a popular choice for those seeking a luxurious and powerful sedan. By staying up-to-date with regular maintenance and addressing any issues promptly, owners of the BMW 730d with this engine can enjoy a reliable and enjoyable driving experience.

2.3. BMW 730d with M57D30 Engine

The BMW 730d with the M57D30 engine is an older model that is still popular among drivers seeking a powerful and luxurious sedan. However, as with any car, there are some issues that owners of the BMW 730d with this engine should be aware of.

One issue that has been reported with the BMW 730d with the M57D30 engine is related to the car's turbochargers. Specifically, some owners have reported issues with the turbochargers failing or experiencing reduced performance over time. This can lead to decreased engine power and decreased fuel efficiency.

Another issue that has been reported with the BMW 730d with the M57D30 engine is related to the car's fuel injectors. Specifically, some owners have reported issues with the fuel injectors becoming clogged or failing, which can lead to decreased engine performance and increased fuel consumption.

In addition to these specific issues, the BMW 730d with the M57D30 engine may also experience more general problems that can affect its performance and reliability. For example, the car's suspension system may experience wear and tear over time, leading to a bumpy ride and decreased performance. Additionally, the car's brakes may wear out over time, leading to decreased stopping power and increased braking distances.

Despite these issues, the BMW 730d with the M57D30 engine remains a popular choice among drivers seeking a powerful and luxurious sedan. By staying up-to-date with regular maintenance and addressing any issues promptly, owners of the BMW 730d with this engine can enjoy a reliable and enjoyable driving experience.

3. Issues with the BMW 730d by Trim Level and Generation

3.1. BMW 730d G11/G12 (2015-present)

The BMW 730d G11/G12, which was introduced in 2015, is the sixth generation of the BMW 7 Series. It is equipped with a 3.0-liter turbocharged diesel engine that produces 265 horsepower and 620 Nm of torque. While this model has been praised for its performance, luxury, and advanced technology features, there have also been some reported issues.

One of the most common issues reported with the BMW 730d G11/G12 is related to the transmission. Some drivers have experienced rough shifting or delayed response times, particularly when accelerating from a stop. This issue may be caused by a faulty transmission control module, which can be replaced by a qualified mechanic.

Another issue that has been reported with the BMW 730d G11/G12 is related to the air suspension system. Some drivers have reported issues with the suspension failing or becoming noisy, particularly at high speeds or on bumpy roads. This can be caused by a faulty air compressor or air spring, which can be replaced by a qualified mechanic.

In addition, some drivers have reported issues with the electronic features of the BMW 730d G11/G12. This can include problems with the infotainment system, such as freezing or restarting unexpectedly, as well as issues with the climate control system. These issues may be caused by faulty software or wiring, which can be repaired or replaced by a qualified technician.

Lastly, some drivers have reported issues with the fuel system of the BMW 730d G11/G12. This can include issues with fuel injectors or the fuel pump, which can cause poor fuel efficiency, reduced power, or difficulty starting the engine. These issues may be resolved by cleaning or replacing the affected components.

Overall, while the BMW 730d G11/G12 is generally considered a reliable and luxurious vehicle, there have been some reported issues with the transmission, air suspension system, electronic features, and fuel system. If you experience any of these issues, it is recommended to bring your vehicle to a qualified mechanic or BMW dealership for repair and maintenance.

3.2. BMW 730d F01/F02 (2008-2015)

The BMW 730d F01/F02 was introduced in 2008 as a replacement for the E65/E66 7 Series. This luxury sedan was equipped with a range of engines, including a 3.0-liter inline 6-cylinder diesel engine that powered the 730d model. Despite its impressive performance and advanced technology, the BMW 730d F01/F02 experienced a few issues during its production years.

One common problem with this model was related to the diesel particulate filter (DPF). The DPF is responsible for capturing harmful particles from the exhaust gases before they are released into the environment. However, if the DPF becomes clogged or faulty, it can lead to reduced engine performance, higher fuel consumption, and even engine damage. Some drivers reported that their DPF warning light would come on frequently, indicating that the filter needed to be cleaned or replaced.

Another issue that some BMW 730d F01/F02 owners experienced was related to the electronic parking brake. This system is designed to engage the parking brake automatically when the engine is turned off or when the car is put into park. However, some drivers reported that their parking brake would fail to engage or disengage properly, leading to safety concerns and potential accidents.

In addition, some drivers reported issues with the car's air conditioning system, such as weak cooling or uneven air distribution. This problem could be caused by a faulty compressor or other components within the system.

Finally, some BMW 730d F01/F02 owners reported issues with the car's suspension system, particularly with the air suspension. This system is designed to provide a smooth ride and adjust the car's height based on driving conditions. However, some drivers reported that their suspension would fail to adjust properly, resulting in a bumpy ride or uneven handling.

Overall, while the BMW 730d F01/F02 was a popular and impressive luxury sedan, it did experience a few common issues during its production years. Owners should be aware of these potential problems and take proactive steps to address them, such as regular maintenance and inspections.

3.3. BMW 730d E65/E66 (2002-2008)

The BMW 730d E65/E66 is the fourth generation of the BMW 7 Series and was produced between 2002 and 2008. This model was equipped with a 3.0-liter inline-six diesel engine producing 218 horsepower and 500 Nm of torque. Despite its luxurious features and advanced technology, this generation of the 730d faced some issues that owners and mechanics should be aware of.

One of the most common issues with the E65/E66 BMW 730d is related to the fuel injectors. The fuel injectors in these models tend to fail prematurely, leading to issues such as rough idling, misfires, and reduced engine power. Replacing the fuel injectors can be an expensive repair, but it is necessary to maintain the performance and reliability of the engine.

Another issue that E65/E66 730d owners have reported is related to the turbochargers. The turbochargers in these models can suffer from a buildup of carbon deposits, which can cause the turbochargers to malfunction or fail. Symptoms of this issue can include a loss of power, increased exhaust smoke, and a loud whistling noise coming from the engine. If left untreated, this issue can lead to more severe engine damage and costly repairs.

Additionally, some E65/E66 BMW 730d models have experienced problems with their automatic transmissions. The transmission may shift roughly or even fail to engage in some cases, leading to a frustrating driving experience. This issue can often be resolved by replacing the transmission fluid and filter or, in more severe cases, by rebuilding or replacing the entire transmission.

Finally, some owners have reported issues with the suspension system of the E65/E66 BMW 730d. The suspension may become noisy or rough over time, leading to a bumpy ride and reduced handling performance. This issue can often be resolved by replacing worn suspension components such as the shocks, struts, or bushings.

Overall, the E65/E66 BMW 730d faced several issues related to the fuel system, turbochargers, transmission, and suspension. While these issues can be frustrating and costly to repair, they should not deter potential buyers from considering this luxury sedan. With proper maintenance and regular servicing, the E65/E66 BMW 730d can provide a comfortable and enjoyable driving experience for years to come.

4. Troubleshooting and Solutions for BMW 730d Issues

4.1. Diagnosing Common Issues

The BMW 730d is a complex machine with a lot of intricate systems and components that work together to provide a smooth and powerful driving experience. However, like any other vehicle, it can encounter issues from time to time. Here are some common issues that BMW 730d owners have reported, along with tips on how to diagnose and solve them.

1. Engine Issues: The BMW 730d is known for experiencing issues related to its engine. Common issues include a rough or shaky idle, loss of power, and increased fuel consumption. To diagnose these issues, a visual inspection of the engine bay can be helpful, looking for any loose or damaged components. Checking the engine oil and coolant levels is also important. If the issue persists, a diagnostic scan using a specialized tool can identify any error codes related to the engine. Based on the scan results, a certified mechanic can recommend repairs or part replacements as necessary.

2. Suspension Issues: The BMW 730d has a complex suspension system that provides a smooth ride, but it can also experience issues over time. Some common issues include uneven tire wear, bouncing or dipping during driving, and a knocking or clunking sound while driving over bumps. To diagnose these issues, a visual inspection of the suspension components can be useful, looking for any signs of damage or wear. A test drive can also be helpful in identifying any issues with the suspension system. Based on the findings, a mechanic can recommend suspension repairs or replacements as needed.

3. Electrical Issues: The BMW 730d is equipped with advanced electrical systems that control various functions, such as the infotainment system, climate control, and lighting. Common electrical issues include dead batteries, faulty sensors, and malfunctioning warning lights. To diagnose these issues, a diagnostic scan using a specialized tool can identify any error codes related to the electrical system. A certified mechanic can then recommend repairs or replacements as needed.

4. Transmission Issues: The BMW 730d comes with a smooth-shifting automatic transmission, but it can experience issues such as slipping or harsh shifting over time. To diagnose these issues, a visual inspection of the transmission can be helpful, looking for any signs of fluid leaks or damage. A test drive can also be useful in identifying any issues with the transmission. Based on the findings, a mechanic can recommend transmission repairs or replacements as needed.

5. Brake Issues: The BMW 730d is equipped with powerful brakes that provide excellent stopping power, but they can experience issues such as noisy brakes, soft pedals, and reduced braking power. To diagnose these issues, a visual inspection of the brake components can be useful, looking for any signs of wear or damage. A test drive can also be helpful in identifying any issues with the brakes. Based on the findings, a mechanic can recommend brake repairs or replacements as needed.

Overall, the BMW 730d is a reliable and high-performing vehicle, but like any other vehicle, it can experience issues from time to time. By diagnosing and solving these issues promptly, owners can keep their BMW 730d running smoothly for years to come.

4.2. Common Solutions

The BMW 730d is a luxury sedan that has been known to experience some common issues, but fortunately, there are several solutions available to address these problems.

One common issue is with the engine oil level sensor. This sensor can fail, causing the vehicle to display a warning message stating that the oil level is low when it's not. The solution is to replace the sensor.

Another issue that can occur with the BMW 730d is with the automatic transmission. In some cases, the transmission can shift roughly or delay when shifting. One solution is to replace the transmission fluid and filter. In more severe cases, the transmission may need to be replaced.

The fuel injectors in the BMW 730d can also become clogged or fail, leading to rough idling or poor performance. The solution is to clean or replace the fuel injectors.

The BMW 730d may also experience issues with the battery, particularly if the car is left unused for an extended period. This can cause the battery to discharge and potentially fail. The solution is to either regularly drive the vehicle or use a trickle charger to keep the battery charged.

Finally, issues with the air suspension can occur, causing the car to sit too low or too high. The solution is to replace the air suspension components, such as the airbags or compressor.

Overall, the BMW 730d is a well-built luxury sedan, but like any car, it can experience issues. Fortunately, with proper diagnosis and solutions, these issues can be resolved, ensuring a smooth and enjoyable driving experience.

5. Fuel Consumption and Efficiency

5.1. Factors Affecting Fuel Consumption

Fuel consumption is an important factor to consider when owning a BMW 730d. There are several factors that can affect fuel efficiency, including driving habits, maintenance, and environmental conditions.

One of the most significant factors that affect fuel consumption is driving habits. Aggressive driving, such as rapid acceleration and hard braking, can significantly reduce fuel efficiency. In contrast, smooth and consistent driving at a moderate speed can improve fuel efficiency.

Maintenance is also a critical factor in ensuring optimal fuel efficiency. Regular maintenance of the vehicle, such as oil changes, air filter replacements, and tire pressure checks, can help keep the engine running efficiently and reduce fuel consumption.

Environmental conditions can also impact fuel efficiency. Extreme temperatures, such as extreme heat or cold, can cause the engine to work harder, reducing fuel efficiency. Driving in heavy traffic, where the vehicle must frequently stop and start, can also decrease fuel efficiency.

In addition to these factors, the condition of the vehicle can also affect fuel efficiency. Worn out or dirty fuel injectors, a clogged air filter, and low tire pressure can all contribute to decreased fuel efficiency.

To improve fuel efficiency, it is important to pay attention to driving habits and ensure regular maintenance of the vehicle. Maintaining the vehicle in good condition and addressing any issues promptly can help improve fuel efficiency and reduce fuel consumption.

5.2. Tips for Improving Fuel Efficiency

The BMW 730d is known for its impressive performance and fuel efficiency, but there are still ways to improve its fuel efficiency even further. Here are some tips for improving fuel efficiency in the BMW 730d:

1. Keep your tires properly inflated - Properly inflated tires can improve fuel efficiency by reducing rolling resistance.

2. Use the correct grade of motor oil - Using the correct grade of motor oil can help reduce engine friction and improve fuel efficiency.

3. Avoid unnecessary idling - Idling can waste fuel and reduce fuel efficiency, so turn off the engine when you don't need it.

4. Accelerate and brake smoothly - Abrupt acceleration and braking can waste fuel and reduce fuel efficiency, so try to accelerate and brake smoothly.

5. Use cruise control - Using cruise control can help maintain a consistent speed and improve fuel efficiency.

6. Remove unnecessary weight from the car - Carrying unnecessary weight can increase fuel consumption, so remove any items that you don't need.

7. Plan your trips ahead of time - Planning your trips ahead of time can help you avoid traffic and reduce the time spent idling, improving fuel efficiency.

8. Keep up with regular maintenance - Regular maintenance, such as replacing air filters and changing spark plugs, can help keep your BMW 730d running efficiently and improve fuel efficiency.

By following these tips, you can maximize the fuel efficiency of your BMW 730d and save money on fuel costs.

6. Conclusion

In conclusion, the BMW 730d is a luxury car that offers a powerful and efficient diesel engine. However, like any other vehicle, it is not immune to issues and problems. Common issues for the BMW 730d include turbo failure, fuel system issues, electrical problems, and suspension problems. These issues can be caused by a variety of factors, such as faulty parts, poor maintenance, and normal wear and tear.

Diagnosing and troubleshooting these issues can be a challenging task, but it is essential to identify the root cause of the problem before attempting to fix it. Common solutions for these issues include replacing faulty parts, performing regular maintenance, and seeking professional help from qualified technicians.

Furthermore, fuel consumption and efficiency can be affected by various factors such as driving style, road conditions, and weather conditions. Improving fuel efficiency can be achieved by adopting fuel-efficient driving habits, regular maintenance, and using high-quality fuel.

Overall, owning a BMW 730d can be a rewarding experience if proper maintenance and care are taken. While issues can arise, they can be addressed with proper diagnosis and solutions. By following these tips and guidelines, BMW 730d owners can ensure that their vehicle runs smoothly and efficiently for years to come.

Example List of bmw 730d Engine Error Codes and Descriptions

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