2006 Mercedes-Benz C350 Fuel system Problems
- Complaints
- 11about this part
- Share
- 48%of 23 total for the year
- Median mileage
- 60,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the fuel system of the 2006 Mercedes-Benz C350, 48% of the 23 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 have a very loud odor of gasoline coming from near my back wheel on the drivers side. The car rides fine and I get good gas mileage but it is not leaking anywhere. I took my backseat out and there was nothing wet. I also replaced the gas cap and it did not help”
NHTSA complaint #10864231, filed 2016-05, 195,000 miles“Upon filling gas tank noticed fuel smell in garage. This happened many times. Decided not to fill completely, and smell went away. I now only put 10 gallons in the tank and do not fill up. I'm sending this because I saw an article in the la times indicating this may be problem with e class vehicles.”
NHTSA complaint #10503953, filed 2013-03, 60,000 miles“In july 2009, after filling my vehicle with gasoline (38,000 miles), I drove home, parked my vehicle in my garage and exited the interior. After exiting, I smelled the very strong odor of gasoline emitting from, what appeared the rear of the car. I did not see any leaks or any evidence of fuel, so I went inside my house. Several hours later, I entered my garage and was immediately overwhelmed with the fumes of gasoline. I checked my car again, but was unable to find any leaks. I then open my car door and the fumes were even stronger. …”
NHTSA complaint #10927526, filed 2016-11, 38,000 miles“Every time I fill up the gas tank; there is a strong oder of fuel in the cabin. My wife and I have a newborn and now do not feel safe driving with such a strong odor..this is a safety hazard.”
NHTSA complaint #10654117, filed 2014-11, 75,000 miles“Around december 2010 I began noticing there has been a gas smell from rear wheel housing and rear seat whenever I fill up the gas tank. I have experienced with various fuel level and concluded that gas smell starts when gas is more than 3/4 full. I have been trying not to fill gas more than 3/4 and have recently changed a delivery unit and all the seals, which have been problematic areas for many mercedes. The gas smell did not go away and I don't feel safe due to the risk of fire in addition to the unpleasant gas smell in the cabin.”
NHTSA complaint #10510660, filed 2013-05, 43,000 milesRelated service bulletins
- 10167553Jul 1, 2013Combination message: "Clean fuel filter" is displayed. The fault code 162500 (water level message - Bosch) or P226997 (water level message - Delphi) or 171600 (filter load…
- 10016670May 1, 2009Mercedes: the fuel level indicated in the instrument cluster does not match the actual fill level. This may be caused by a fault in the fuel level sensor function chain…
- 10025443Feb 14, 2008Fuel gauge reads empty, turn signal lamps pulse quicker, central locking inoperative using key, no communication with rear sam.
Fuel system: other model years
Other parts of the 2006 Mercedes-Benz C350
5 complaintsAir bags
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsBody and structure
1 complaintsSuspension
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2006 Mercedes-Benz C350
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