2008 Mercedes-Benz C300 Engine cooling Problems
- Complaints
- 4about this part
- Share
- 1%of 672 total for the year
- Median mileage
- 110,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2008 Mercedes-Benz C300, 1% of the 672 complaints for this model year. Where a mileage was given, the median is 110,000 miles. 1 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.
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.
“Two separate instances of commanded acceleration with 2008 mercedes C300. Purchased the car from a private used car dealer in september 2009 with 10,500 miles. On november 1, 2009 I experienced first instance of uncommanded acceleration while slowing to a stop in a driveway. Engine suddenly accelerated to a high rate and struck a parked truck immediately in front of car. Shifted into reverse and car sped at maximum RPM across lawns and street until finally returning to normal. At no time were the brakes able to have any effect on slowing my speed. …”
NHTSA complaint #10333976, filed 2010-05, 17,330 miles“My car smells like mildew and moldy. I have taken it to the dealer about 3 times about this situation. I have respiratory problems and allergies and I can hardly used this car, it stinks and bothers my breathing.”
NHTSA complaint #10342816, filed 2010-07“The contact owns a 2008 Mercedes-Benz C300. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. Additionally, the check engine warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed with an intake manifold failure. The contact was informed that the intake manifold needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 152,151.”
NHTSA complaint #11633880, filed 2025-01, 152,151 miles“The contact owns a 2008 Mercedes-Benz C300. The contact stated while driving 45 MPH and depressing the accelerator pedal, the vehicle slowed down independently and lost automotive power. The contact stated that the vehicle remained in the intersection while awaiting tow services. The contact stated that her boyfriend and son helped to push the vehicle to the right side of the roadway. The contact smelled a burning odor but was unsure where the odor was coming from. No warning light was illuminated. The contact stated that an independent mechanic was contacted. …”
NHTSA complaint #11670203, filed 2025-06, 110,000 milesRelated recalls
- 22V168000Mar 18, 2022Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2010 E350, 2014 G550, 2008-2009 C300, 2008 C350, 2009 CLK550, 2007 SL550, SLK280, and 2008 SLK350…Covers: Mercedes-Benz C300 2008–2009, SL550 2007, SLK280 2007 +5 more
Related service bulletins
- 10205790Aug 2, 2021After starting the engine, the instrument cluster shows the "EBD not available, diagnosis/test stand" message in yellow.
- 10144075Mar 12, 2018Check Engine Light is on with DTC P030185/ P030685 for misfire cylinder 1 and 6.
- 10167489Mar 19, 2014Noise: A rattling noise may be heard from the area of the chain drive for approx. 2-5 seconds after engine start. And/or: Fault code entries in engine control unit: SIM271DE20…
- 10166978Feb 6, 2014Engine diagnosis warning lamp lights up - Fault code entry (FC) 14A600 or 14A700
- 10167554Jul 10, 2013Engine diagnosis warning lamp activated. Fault code P045600 "Very fine leak" or P044200 "Fine leak" stored in engine control unit.
- 10044201Apr 5, 2012Xentry: mercedes benz: vehicle does not perform automatic engine stop although the eco function was activated via the eco button. No model years given. Also included model 169…
- 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.
Engine cooling: other model years
Other parts of the 2008 Mercedes-Benz C300
270 complaintsElectrical system
228 complaintsSteering
136 complaintsExterior lighting
108 complaintsOther or unknown
38 complaintsEngine
31 complaintsSeat belts
22 complaintsBrakes
17 complaintsElectronic stability control
17 complaintsTransmission and drivetrain
16 complaintsSuspension
12 complaintsBody and structure
9 complaints
← All problems reported for the 2008 Mercedes-Benz C300
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