2012 Mercedes-Benz C350 Engine Problems
- Complaints
- 2about this part
- Share
- 6%of 35 total for the year
- Median mileage
- 55,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2012 Mercedes-Benz C350, 6% of the 35 complaints for this model year. Where a mileage was given, the median is 55,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Known fault of rattling noise after engine start for several seconds 07-16-2013 engine 276, engine 278, engine 157 topic number version design group date validity reason for change”
NHTSA complaint #11233775, filed 2019-07, 55,000 milesRelated service bulletins
- 11017039Apr 1, 2025Complaint Vehicle with atypical reduced heat output. Cause Silicate granulate may have escaped from a damaged bag in the expansion reservoir (not visible), reducing the coolant…
- 11008064Aug 9, 2024In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class…
- 10160738Apr 11, 2019Update engine electronics (ME-SFI) control unit software
- 10158329Oct 9, 2017Oil in engine wiring harness
Engine: other model years
Other parts of the 2012 Mercedes-Benz C350
27 complaintsFuel system
3 complaintsSuspension
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsTransmission and drivetrain
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2012 Mercedes-Benz C350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology