2005 Mercedes-Benz C320 Engine Problems
- Complaints
- 1about this part
- Share
- 7%of 15 total for the year
- Median mileage
- 136,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2005 Mercedes-Benz C320, 7% of the 15 complaints for this model year. Where a mileage was given, the median is 136,000 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.
“I own a 2005 Mercedes-Benz C320 for three years and always have issues with the software, the engine keeps shutting off while driving, and the steering wheel get locked, no matter where I am at, a city streets or a highway. Many phone calls to Mercedes-Benz dealer and the headquarter, they didn't try to resolve the issues I'm having with my car!!! Mercedes-benz wants people either forget about the safety issue! Die naturally or sell their cars.”
NHTSA complaint #10993929, filed 2017-06, 136,000 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…
Engine: other model years
Other parts of the 2005 Mercedes-Benz C320
4 complaintsSeats
3 complaintsAir bags
2 complaintsElectrical system
2 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2005 Mercedes-Benz C320
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