2012 Mercedes-Benz C300 Fuel system Problems
- Complaints
- 12about this part
- Share
- 4%of 267 total for the year
- Median mileage
- 96,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 12 complaints about the fuel system of the 2012 Mercedes-Benz C300, 4% of the 267 complaints for this model year. Where a mileage was given, the median is 96,000 miles. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
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.
“While my car was running in my driveway prior to driving, the engine caught fire, totaling the vehicle. There are no open recalls on this specific car, but was told by the fire investigator that it was either electrical or fuel pump related.”
NHTSA complaint #10689919, filed 2015-02, 45,000 miles“The rear subframe has corroded around the areas where the trailing arm and control arm meet the subframe on both sides of the vehicle, and has disintegrated around the drivers side rear trailing arm causing it to have detached, along with a piece of the subframe. The metal of the subframe is distorted around the area of the break. The detached trailing arm and piece of subframe are now making contact with the fuel tank as well. …”
NHTSA complaint #11352792, filed 2020-09, 92,000 miles“Fuel tank is rusting. Leaking fuel, heavy fuel smell inside cabin. My saftey and anyone around the vehicle would be at risk due to fire chance. Confirmed by independent service center Vehcile has only been inspected by me and the shop Only symptom that appeared was fuel smell in my garage and a puddle of gasoline underneath the vehicle.”
NHTSA complaint #11763782, filed 2026-09“Car is leaking gas very dangers . I contact Mercedes dealer regarding the recall on this type of Mercedes i have and they said only vehicles manufactured from April 18, 2011, through July 12, 2011. Mine was before or after , and they refuse to give me the exactly date for my car manufacturer. Car I use for Uber , and i don’t have any other income . If someone just through away a cigarette in parking lot might cause a big problem in the building and others cars in parking”
NHTSA complaint #11490508, filed 2022-10“The rear drivers side had a loud chunking/clanking noise while driving and the vehicle was unable to control and break when in motion. Driving was impossible as the breaking component was a total failure and car could not be controlled while traveling down 45-50mph zone. I reduced my speed to 20-25 mph by letting off on the gas to get better control of the car if breaking would need to be suddenly made. I relied on the shoulder to pull off if any sudden breaking was needed. …”
NHTSA complaint #11435789, filed 2021-10Related 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
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 2012 Mercedes-Benz C300
114 complaintsSuspension
69 complaintsBody and structure
55 complaintsOther or unknown
23 complaintsBrakes
15 complaintsElectrical system
12 complaintsSteering
8 complaintsEngine
5 complaintsTransmission and drivetrain
5 complaintsExterior lighting
4 complaintsWheels
4 complaintsVisibility (wipers, defrost, mirrors)
3 complaints
← All problems reported for the 2012 Mercedes-Benz C300
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