2004 Mercedes-Benz C320 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 7%of 15 total for the year
- Median mileage
- 60,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2004 Mercedes-Benz C320, 7% of the 15 complaints for this model year. Where a mileage was given, the median is 60,000 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 2004 mb C320 and I have noticed that when it reached 40,000 miles the car itself started malfunctioning from the rear window shade wouldn't go down for which I only use occasionally; the air conditioning would turn on and off; the temp gauge is inaccurate; the passenger visor came off; the center console wouldn't shut close and the. I went to mb for the yearly service- april 2009 and they wanted $1300.00 for the window shade; I think $500 for the center console and $125 for the visor. …”
NHTSA complaint #10275711, filed 2009-07, 60,000 milesRelated service bulletins
- 10135867Jun 9, 2015Engine noises after engine start
- 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…
- 10024362Feb 20, 2008Mercedes-benz - check catalytic converters and replace if necessary - models 203, 209, 211, 215, 230 - model years 2004-2005. *nj update 8/7/2008.
Engine cooling: other model years
Other parts of the 2004 Mercedes-Benz C320
5 complaintsAir bags
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsElectronic stability control
1 complaintsEngine
1 complaintsEquipment
1 complaintsLatches, locks and linkages
1 complaintsOther or unknown
1 complaintsSteering
1 complaintsBody and structure
1 complaints
← All problems reported for the 2004 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