2015 Mercedes-Benz C400 Engine Problems
- Complaints
- 1about this part
- Share
- 10%of 10 total for the year
- Median mileage
- 9,700miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2015 Mercedes-Benz C400, 10% of the 10 complaints for this model year. Where a mileage was given, the median is 9,700 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.
“Engine randomly stalls after sitting at red light/or while in traffic. All warning/dashboard lights come on and you can only start the car by putting it in park, then pushing start. The car has less than 10k miles. Dealership can't find code or replicate the issue. Internet searches indicate it is an issue and other makes and models have been recalled, but without a code the dealership doesn't know what to do. I was nearly rear-ended because it doesn't happen until you take your foot off the brake and press the gas to move forward, and that's when the engine shuts off completely. …”
NHTSA complaint #11021610, filed 2017-09, 9,700 milesRelated service bulletins
- 11034064Jun 19, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 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…
- 10158329Oct 9, 2017Oil in engine wiring harness
- 10058561Jul 27, 2015Xentry (mercedes): vehicle shuts down at 5 mph but engine able to be restarted via eco start stop due to mismatched levels of software. Model 2014-15 217, 222.
- 10058545Jul 1, 2015Xentry (daimler): due to unfavorable tolerance of piston wrist pin, resulting in knocking, clattering/rattling noises, causing an enlarge end float connecting rod in piston, from…
- 10058548Jun 4, 2015Xentry (daimler): stored in engine control unit are faults relating to throttle valve actuator and/or oxygen sensor due to occasional transition resistance at contacts, causing…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2015 | 1 | 10% |
Other parts of the 2015 Mercedes-Benz C400
6 complaintsElectrical system
1 complaintsElectronic stability control
1 complaintsOther or unknown
1 complaintsSuspension
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2015 Mercedes-Benz C400
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