2012 Mercedes-Benz C300 electrical system problems
12 owner complaints filed with NHTSA name the electrical system on the 2012 Mercedes-Benz C300 — 5% of all complaints for this model year.
What owners report
“I was replacing rear tail light bulb. Now I'm getting an error message on instrument cluster. I tried to fix the issue but couldn't do to the fact the wiring harness has melted. Mercedes Benz had a recall back in 2013 saying this is a safety issue. No recall for our car.”
filed May 16, 2025
“The contact owns a 2012 Mercedes-Benz C300. The contact stated that after opening the sunroof and then attempting to close the sunroof, the sunroof failed to fully close. The contact had to open and close the sunroof several times before the sunroof closed. Additionally, the contact stated that…”
filed Jun 14, 2024
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% |
| 2011 C300 | 43 | 9% |
| 2010 C300 | 84 | 19% |
| 2009 C300 | 198 | 34% |
| 2008 C300 | 228 | 34% |
Other reported problem areas on the 2012 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.