We don't have a lot of Mercedes-Benz C300 engine problems on file — feel free to add yours here. The most common C300 engine problems cost $15,700 to fix & occur at 50,000 miles. Click on a year below.

Worst Engine Problems
engine failure 2016 Mercedes-Benz C300
broken piston 2015 Mercedes-Benz C300
catastrophic engine failure 2021 Mercedes-Benz C300