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Fuel systemPart report

2004 Mercedes-Benz C320 Fuel system Problems

Complaints
5about this part
Share
33%of 15 total for the year
Median mileage
66,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the fuel system of the 2004 Mercedes-Benz C320, 33% of the 15 complaints for this model year. Where a mileage was given, the median is 66,000 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 smelt fuel inside my car whenever my car would be filled to a full tank of gas and for a period of time until the fuel level dropped. My car started to drive funny and not accelerate normally then stopped all together. Mercedes diagnosed it as a fuel system issue. I bought the parts at mercedes and had it repaired and then then received a week later a recall for the fuel system as a safety issue. . The dealer did not fix my car and has avoided the assistance to resolve the issue and I can not reach anyone at mercedes corporate that can help.”

NHTSA complaint #10776593, filed 2015-09

“The contact owns a 2004 mercedes e320. The contact stated fuel fumes were emitted in and around the vehicle. The vehicle was taken to a dealer. The manufacturer was made aware of the failure. The failure mileage was 56,000 and the current mileage was 60,000. Updated 8/27/14 updated 09/5/2014”

NHTSA complaint #10594304, filed 2014-05, 56,000 miles

“The contact owns a 2004 mercedes benz e320. The contact smelled a strong gasoline odor coming from vehicle. The contact removed the rear seat and discovered that the driver's side rear wheel was filled with gasoline. The vehicle was taken to a mechanic, who diagnosed that the fuel pressure valves needed to be repaired. The vehicle was repaired. The contact stated that the failure recurred after the repairs. The manufacturer was not made aware of the failure. The approximate failure mileage was 96,000.”

NHTSA complaint #10560207, filed 2014-01, 96,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2004533%
2003314%
200223%
200158%

Other parts of the 2004 Mercedes-Benz C320

Air bags
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Brakes
1 complaints
Electrical system
1 complaints
Electronic stability control
1 complaints
Engine
1 complaints
Engine cooling
1 complaints
Equipment
1 complaints
Latches, locks and linkages
1 complaints
Other or unknown
1 complaints
Steering
1 complaints
Body 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 Nov 1, 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