2011 Mercedes-Benz C300 Fuel system Problems
- Complaints
- 44about this part
- Share
- 9%of 480 total for the year
- Median mileage
- 80,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 44 complaints about the fuel system of the 2011 Mercedes-Benz C300, 9% of the 480 complaints for this model year. Where a mileage was given, the median is 80,000 miles. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Car will smell like fuel after filling up on full tank. I took the car into mercedes of greenway in downtown houston. They discovered a leak in fuel system, it's causing the check engine light to come on because of the inadequate pressure. When I had the car parked in my garage, my whole house smelled like fuel ! It's a big safety issue/fire hazard. I've seen other 2011 C300 are experiencing same issues.”
NHTSA complaint #11373194, filed 2020-11, 150,000 miles“I had to pay for a fuel filter leak due to a crack of the fuel filter flange and was told this was not a recall on my vehicle, but when I was looking at recalls for my year and model I came across NHTSA campaign number-12v557000 with a recall on merceded-benz C300 4 matic model year 2011-2012 for fuel leak due to cracked flange. …”
NHTSA complaint #10984538, filed 2017-05, 80,000 miles“I was driving and a strong fuel odor was experienced. When I stopped the car and looked under the undercarriage there was a puddle of fuel. There is a fuel leak coming from the bottom plastic underneath the gas tank. It may be the fuel filter as the same year and model had a recall but apparently my vehicle was not covered.”
NHTSA complaint #10916581, filed 2016-10, 30 miles“I filled my gas tank up friday evening, went home and parked my vehicle in the garage. The next morning there was a strong smell of gasoline coming from the car. I took it to the mercedes dealer and they said the seal and cap under the passenger back seat needed to be replaced. They wanted to charge $434. Not only is this dangerous it should not be the consumers responsibility when the manufacturer provided faulty material.”
NHTSA complaint #10762669, filed 2015-09, 51,000 miles“I began smelling gas in the cab of the vehicle. After refueling, the vehicle was leaking gas from the right side in the driveway of my residence and the odor of gas in the cab began to increase. Merecedes personnel refused to acknowledge other issues and wanted to begin at their starting points regarding repairs. When this recall was addressed, I was informed it did not apply to my vehicle. After a lengthy elimination process, we learned the fuel pump flange had failed in this model as it has in other similar models. …”
NHTSA complaint #11302292, filed 2020-01, 93,800 milesRelated recalls
- 12V557000Dec 3, 2012Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and…Covers: Mercedes-Benz C300 2011–2012, E350 2011–2012, CL550 2011–2012 +5 more
Related service bulletins
- 10246055Nov 3, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (âÂÂMBUSAâÂÂ) is…
- 11031654Oct 24, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (“MBUSA”) is extending…
- 11031588Oct 20, 2023In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 5% |
| 2022 | 7 | 28% |
| 2021 | 3 | 21% |
| 2020 | 3 | 9% |
| 2019 | 12 | 17% |
| 2018 | 10 | 10% |
| 2017 | 33 | 15% |
| 2016 | 67 | 23% |
| 2015 | 70 | 18% |
| 2014 | 1 | 1% |
| 2013 | 3 | 1% |
| 2012 | 12 | 4% |
| 2011 | 44 | 9% |
| 2010 | 26 | 6% |
| 2009 | 5 | 1% |
| 2008 | 2 | 0% |
Other parts of the 2011 Mercedes-Benz C300
250 complaintsSuspension
60 complaintsBody and structure
49 complaintsElectrical system
43 complaintsSteering
34 complaintsOther or unknown
33 complaintsExterior lighting
20 complaintsBrakes
13 complaintsEngine
10 complaintsTransmission and drivetrain
10 complaintsSeats
4 complaintsVehicle speed control
3 complaints
← All problems reported for the 2011 Mercedes-Benz C300
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