2011 Mercedes-Benz C300 structure problems
49 owner complaints filed with NHTSA name the structure on the 2011 Mercedes-Benz C300 — 10% of all complaints for this model year.
What owners report
“Rear subframe , so I went in for an alignment and was quickly notified and denied service due to my rear sub frame being broken. Car is reported to be unsafe by the tire company.no lights etc. My family and I could of seriously been hurt. I can retrieve a statement from dun tire in auburn and from…”
filed Nov 11, 2024
“Interior door handle becomes inoperative due to breaking of some internal element. This prevents leaving the vehicle. Of concern is that in case of emergency, the occupant cannot exit the vehicle. If power is affected, the windows cannot be lowered which is the only way to exit using the exterior…”
filed Jun 11, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim…
LI82.62-P-078631 · Service Bulletin/Repair Instructions · issued Aug 6, 2026
Structure problems in other C300 years
| Year | Reports | Share |
|---|---|---|
| 2016 C300 | 26 | 9% |
| 2015 C300 | 59 | 16% |
| 2014 C300 | 9 | 10% |
| 2013 C300 | 58 | 22% |
| 2012 C300 | 54 | 20% |
| 2010 C300 | 34 | 8% |
| 2009 C300 | 27 | 5% |
| 2008 C300 | 9 | 1% |
Other reported problem areas on the 2011 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.