Fuel smell in vehicle. Upon investigation found fuel pump flange cracked and leaking fuel. Leaking fuel is a fire hazard. No warning lamps illuminated.
2010 MERCEDES-BENZ S550
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all S550 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 11 of 16 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Suspension. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Steering. Review the 5 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Fuel/propulsion System complaints
3 reportsVehicle garaged in storage for summer. Upon returning strong odor of gasoline was detected. Reluctantly drove to dealership and prognoses was determined that (fuel pump strainer) had malfunction thus soaking the entire rear passenger compartment and seat cushion. Upon investigation Mercedes has had a problem in other C -models…
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Vehicle garaged in storage for summer. Upon returning strong odor of gasoline was detected. Reluctantly drove to dealership and prognoses was determined that (fuel pump strainer) had malfunction thus soaking the entire rear passenger compartment and seat cushion. Upon investigation Mercedes has had a problem in other C -models and has extended warranties for 15 additional years for this same problem. This vehicle is a S- 550 model. Dealership has denied any responsibility. I think the vehicle is unsafe at ANY SPEED. Never should fuel enter the passenger compartment of any vehicle. Video on file at dealership.
UPON REFULING MY AUTOMOBILE FULL I COULD SMELL A STRONG ODOR OF GAS FUMES. EARLIER THAT DAY I HAD AN IMPACT OF MY TIRE OVER A CURB. GAS FUMES COULD BE SMELLED NOT SO MUCH ON THE OUTSIDE OF THE AUTO BUT INSIDE WITHOUT ABATEMENT. UPON INSPECTION BY MERCEDES BENZ OF STOCKTON CA IT WAS DETERMINED A FUEL LEAK WAS PRESENT WITH THE …
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UPON REFULING MY AUTOMOBILE FULL I COULD SMELL A STRONG ODOR OF GAS FUMES. EARLIER THAT DAY I HAD AN IMPACT OF MY TIRE OVER A CURB. GAS FUMES COULD BE SMELLED NOT SO MUCH ON THE OUTSIDE OF THE AUTO BUT INSIDE WITHOUT ABATEMENT. UPON INSPECTION BY MERCEDES BENZ OF STOCKTON CA IT WAS DETERMINED A FUEL LEAK WAS PRESENT WITH THE CUSHION THAT SITS ON TOP OF THE FUEL SYSTEM WAS SOILED/STURATED UNDER THE REAR PASSENGER SEAT OF THE CAR. PICTURES TAKEN SUGGEST IT HAD BEEN WAS ONGOING POSSIBLELY FOR YEARS. THEY SUGGESTED HEAT CONTRIBUTED TO THE UNIT-SEAL CORROSION AND ITS SURROUNDINGS. IT IS NOT CLEAR WHY MY RIGHT REAR IMPACT WITH A CURB BROUGHT THIS ALL TO MY ATTENTION. HIGHLY COMBUSTIBLE SITUATION THAT WAS CLEARLY NOT DETECTED WITCH IS NOT COMPLETELY UNDERSTOOD THE SAME DAY I HAVE AN IMPACT TO THE RIGHT REAR TIRE JUMPING A CURB THEN GOING BACK OVER IT TO UNLODGE THE TIRE & ROCKER MOLDING FROM THE CURB & REFUEL I SMELL GAS FUMES. HIGHLY DANGEROUS USING PLASTIC SECURE GAS EXCHANGES ON SOMETHING PEOPLE SIT ON? HAS SIMULARITIES IN OTHER DRIVERS. NOT SURE WHY THAT DAY THE SEAL (PLASTIC) RUPTURED (AT PLASTIC LID)
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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