2010 Mercedes-Benz C300 electrical system problems
84 owner complaints filed with NHTSA name the electrical system on the 2010 Mercedes-Benz C300 — 19% of all complaints for this model year.
What owners report
“The contact owns a 2010 Mercedes-Benz C300. The contact stated that the battery and alternator were being drained. The check engine warning light was illuminated. Additionally, the front air bag sensor message and a fog light message were displayed. The vehicle was towed to an unknown local dealer…”
filed Feb 12, 2026
“Got a car from the dealer soon weeks after the rear subframe was so corroded alignment was able to get done and was snapped on both sides airbag light came on doesn’t go away and the rear right brake like started using the fog light as a turn signal”
filed Sep 10, 2025
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% |
| 2009 C300 | 198 | 34% |
| 2008 C300 | 228 | 34% |
Other reported problem areas on the 2010 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.