2009 Mercedes-Benz C300 electrical system problems
198 owner complaints filed with NHTSA name the electrical system on the 2009 Mercedes-Benz C300 — 34% of all complaints for this model year.
What owners report
“I have messages on my instrument panel stating I have airbag malfunction going on I also have tail lights that are not working and after trying to replace the bulbs it still don't work so obviously it's the light bulb panel so I went and looked at recalls and says that these are all recalls on my…”
filed May 8, 2026
“The contact owns a 2009 Mercedes-Benz C300. The contact stated that while starting the vehicle, the check engine, seat belt, and air bag warning lights illuminated. Additionally, the headlights and navigation lights failed to activate for a while. There was burning odor inside the vehicle with the…”
filed Mar 12, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Various control units on these vehicles may have been updated with incorrect software…Campaign 17V177000 · Mar 14, 2017
Electrical System problems in other C300 years
| Year | Reports | Share |
|---|---|---|
| 2016 C300 | 32 | 11% |
| 2015 C300 | 50 | 13% |
| 2014 C300 | 9 | 10% |
| 2013 C300 | 18 | 7% |
| 2012 C300 | 12 | 5% |
| 2011 C300 | 43 | 9% |
| 2010 C300 | 84 | 19% |
| 2008 C300 | 228 | 34% |
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.