2009 Mercedes-Benz C300 engine problems
16 owner complaints filed with NHTSA name the engine on the 2009 Mercedes-Benz C300 — 3% of all complaints for this model year.
What owners report
“The contact owns a 2009 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, the "SRS System Requires Service" was displayed. The air bag and check engine warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the vapor…”
filed Jun 6, 2024
“Ignition switch failed at 76k miles. Gear shift will not get out of park, steering wheel will not unlock and car will not start. Known to be a common issue that affects all mercedes with electronic ignition. Mercedes should be brought to court via class action for this.”
filed Dec 3, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Various control units may have been updated with incorrect software configuration during…Campaign 22V168000 · Mar 18, 2022
Engine problems in other C300 years
| Year | Reports | Share |
|---|---|---|
| 2016 C300 | 93 | 33% |
| 2015 C300 | 127 | 34% |
| 2014 C300 | 2 | 2% |
| 2013 C300 | 8 | 3% |
| 2012 C300 | 5 | 2% |
| 2011 C300 | 10 | 2% |
| 2010 C300 | 13 | 3% |
| 2008 C300 | 31 | 5% |
Other reported problem areas on the 2009 Mercedes-Benz C300
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.