Mercedes-Benz C300 Fuel/propulsion System Problems
Owners have filed 261 complaints with NHTSA about fuel/propulsion system problems on the Mercedes-Benz C300 across 16 model years. The 2015 model year has the most (66). The words owners use most often: “gas smell” (12% of reports).
- 261fuel/propulsion system complaints
- —median miles at failure
- 4mention a crash
- 1mention an injury
- 0related recalls
- 24%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Gas smell: mentioned in 31 of 261 complaints (12%)
- Crankcase ventilation: mentioned in 23 of 261 complaints (9%)
- Fuel leak: mentioned in 20 of 261 complaints (8%)
- Code P052E: mentioned in 16 of 261 complaints (6%)
At what mileage do fuel/propulsion system problems happen?
Based on 81 complaints that reported the odometer reading.
How serious are the reports?
Of 261 complaints, 4 mention a crash, 1 a fire, 1 an injury.
Mercedes-Benz C300 fuel/propulsion system complaints by model year
| Model year | Fuel/propulsion System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2023 C300 | 1 | 5% | — |
| 2022 C300 | 4 | 16% | — |
| 2021 C300 | 2 | 14% | — |
| 2020 C300 | 3 | 9% | 87,000 |
| 2019 C300 | 7 | 10% | 28,000 |
| 2018 C300 | 9 | 9% | 62,000 |
| 2017 C300 | 30 | 14% | 47,000 |
| 2016 C300 | 57 | 20% | 50,000 |
| 2015 C300 | 66 | 17% | 49,000 |
| 2014 C300 | 1 | 1% | — |
| 2013 C300 | 2 | 1% | — |
| 2012 C300 | 9 | 3% | 68,500 |
| 2011 C300 | 38 | 8% | 80,000 |
| 2010 C300 | 26 | 6% | 70,000 |
| 2009 C300 | 4 | 1% | 60,500 |
| 2008 C300 | 2 | 0% | 66,287 |
When owners reported it
Related recalls (0)
No safety recall lists fuel/propulsion system for the Mercedes-Benz C300. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
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…
Strong fu Smell after filling tank recently. Checked under the passenger side rear seat and there is some fuel on the top of tank. Local mechanic confirmed and mentioned not to fill tank more than half. Requires replacement of fuel tank to fix it
Vehicle: 2012 Mercedes-Benz C300 4Matic Sport Problem Component: Fuel / Propulsion System Safety Issue Description: My 2012 Mercedes-Benz C300 developed a serious fuel tank leak at approximately 106,460 miles which created overwhelming gasoline fumes and rendered the vehicle unsafe to operate. The…
I was driving my car was sputtering or trying to shut off while I press the gas and I let go of the gas and it catches and stayed on. I took it to the dealership and they said they found nothing wrong. May 3rd around 12pm im driving on the freeway and as im getting on the express lane going 60 it…
strong evident fuel/ gas smell when driving and when the car is in park after driving.
Frequently asked questions
Do all Mercedes-Benz C300s have fuel/propulsion system problems?
No. NHTSA has 261 owner complaints about fuel/propulsion system for the Mercedes-Benz C300. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Mercedes-Benz C300 fuel/propulsion system?
No recall currently lists fuel/propulsion system for this vehicle.
What do owners say about fuel/propulsion system problems on the Mercedes-Benz C300?
The most frequent phrase is “gas smell”, in 31 of 261 complaints, followed by “crankcase ventilation” (23).
Other Mercedes-Benz C300 problems
- Air Bags problems (1,213)
- Electrical System problems (750)
- Steering problems (493)
- Engine problems (455)
- Structure problems (380)
- Exterior Lighting problems (310)
- Suspension problems (307)
- Power Train problems (119)
See all Mercedes-Benz C300 problems.