The 190c replaced the W120 180c/180Dc and W121 190b/190Db as Mercedes-Benz's line of less-expensive four-cylinder sedans. The "D" denoted a Diesel engine, a technology pioneered by Mercedes-Benz and championed despite widespread derision in the motoring press.
The second series of 4-cylinder cars lasted just a few years. Production of the new 200, 200D and 230 models commenced in July, 1965, at the Sindelfingen plant. All three cars ended production in 1968 with the introduction of the W115 220 and 220D.