2009 Mercedes-Benz C Engine cooling Problems
- Complaints
- 1about this part
- Share
- 7%of 14 total for the year
- Median mileage
- 1,400miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2009 Mercedes-Benz C, 7% of the 14 complaints for this model year. Where a mileage was given, the median is 1,400 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.
“Bought a new 2009 c300 mercedes at a dealer in san diego. Car has rough idle and shakes for 30 seconds in the morning. Dealer checked and found nothing wrong. They are blaming it on strict emission issues as the source of the rough idle. Hood does not latch unless slammed hard. Dealer claimed they had adjusted latch but still the same.”
NHTSA complaint #10289654, filed 2009-10, 1,400 milesRelated service bulletins
- 10039256May 31, 2011Mercedes-benz: the malfunction light is on with multiple possible trouble codes stored. There could be a problem with the camshaft and/or scoring of a piston.
- 10034504Mar 18, 2010Mercedes (xentry): engine diagnosis warning lamp activated. Magnetic short between armature and pole core due to calibration error at valve and tolerance deviation by supplying…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2009 | 1 | 7% |
Other parts of the 2009 Mercedes-Benz C
4 complaintsTransmission and drivetrain
4 complaintsElectrical system
3 complaintsBrakes
2 complaintsSteering
2 complaintsAir bags
1 complaintsElectronic stability control
1 complaintsEquipment
1 complaintsSeat belts
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2009 Mercedes-Benz C
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