2015 Mercedes-Benz C300 Fuel System Problems
NHTSA lists 70 Fuel System complaints for the 2015 Mercedes-Benz C300, 18% of all 381 complaints that year, with a median failure mileage of 47,250. One related recall (15V138000) covers an improperly secured fuel delivery module locking plate on certain 2015 C300 4matic vehicles.
- Fuel System complaints
- 70
- 18% of 381
- Crashes reported
- 1
- Fires reported
- 0
- Injuries reported
- 1
- Median mileage
- 47,250 mi
- Related recalls
- 1
Typical fuel system symptoms owners report
- Owners report a strong raw gasoline smell inside the cabin and garage, especially at cold start after the car sits for several hours.
- Several complaints describe a fuel hose clamp near the high pressure pump that loosens over time, letting the hose shift and leak.
- Some owners report the fuel pump or fuel injectors failing, requiring dealer replacement.
- One owner reported the engine sputtering, trying to shut off while pressing the gas, then stalling on the freeway and losing steering control, resulting in a crash.
- A stalling incident at a stoplight was linked to a fuel odor and led to replacement of the fuel hose and fuel line.
When 2015 Mercedes-Benz C300 fuel system complaints were filed
First complaint Apr 11, 2017, latest May 7, 2026.
Fuel System recalls for the 2015 Mercedes-Benz C300
- NHTSA 15V138000Mar 10, 2015Fuel System3,039 vehicles
Fuel system, gasoline:delivery:fuel pump
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 C300 4matic and C400 4matic vehicles manufactured April 7, 2014, to July 25, 2014. In the affected vehicles, the fuel delivery module may be improperly secured to the fuel tank. Secondly, electrical wires that connect to the fuel delivery module might have been pinched between the flange of the fuel delivery module and the tank.
Risk: If the locking plate is not properly secured to the fuel delivery module it may become loose, and leak fuel, increasing the risk of a fire. If the electrical wires are pinched, the fuel pump may stop working, resulting in a stall, thereby increasing the risk of a crash.
Remedy: MBUSA will notify owners, and dealers will inspect the vehicles for improperly secured locking plates and pinched wires, correcting the vehicles as necessary, free of charge. The recal began on April 24, 2015. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2015030004.
Fuel System complaints by C300 model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- Does the 2015 Mercedes-Benz C300 have a fuel system recall?
- Yes. Recall 15V138000 covers certain 2015 C300 4matic and C400 4matic vehicles built between April 7, 2014 and July 25, 2014, where the fuel delivery module locking plate may not be properly secured. Dealers inspect for improperly secured locking plates and pinched wires.
- How common are fuel system complaints for the 2015 C300?
- NHTSA lists 70 Fuel System complaints for the 2015 C300, which is 18% of the 381 total complaints filed for that model year.
- At what mileage do fuel system problems typically show up on the 2015 C300?
- The median mileage at failure reported to NHTSA for this issue is 47,250 miles.
- What is the most common fuel system symptom owners report?
- The most frequently described symptom is a strong gasoline smell in the cabin or garage, often at cold start, which several owners linked to a loose fuel hose clamp.
- Has the fuel system issue caused any crashes or injuries?
- NHTSA data for this problem area on the 2015 C300 shows 1 crash and 1 injury, with 0 fires reported.