There are 7 owner-reported fuel system complaints for the 2005 Mercedes-Benz C-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
"TAKATA RECALL" THE CAR HAS A GAS SMELL ESPECIALLY WHEN WE TURN THE HEATERS ON/ IT IS VERY STRONG FUMES & THE WINDOWS HAVE TO BE ROLLED DOWN WHEN DRIVING/ HAS A GAS LEAK
VEHICLE EXHIBITING SAME CHARACTERISTICS OF FUEL LEAK FROM GAS TANK AS OTHER VEHICLE MODELS INVOLVED IN NHTSA INVESTIGATION EA13-003. STRONG FUEL ODOR ORIGINATING FROM LEFT REAR SECTION OF THE VEHICLE BEHIND LEFT REAR WHEEL AFTER FILL-UP. ONLY OCCURS AFTER FILL-UP WITH FULL TANK OF GAS, I ONLY NOTICE WHEN STATIONARY BECAUSE I AM OUTSIDE OF THE VEHICLE. THE NHTSA INVESTIGATION EA13-003 NEEDS TO BE EXPANDED TO INCLUDE MY MODEL VEHICLE, C55 AMG. ALSO, PLEASE SEE THIS MBWORLD.COM THREAD: HTTPS://MBWORLD.ORG/FORUMS/C32-AMG-C55-AMG-W203/712997-C55-SMELLS-LIKE-GAS-AFTER-I-FILL-UP.HTML
A MODERATE GAS SMELL COMES FROM DRIVER SIDE REAR WHEEL. HESITATION UPON START UP. THE RESULT IS DUE TO A FAULTY FUEL PUMP THAT CAUSES A LEAK THROUGH CRACK LINES IN THE FUEL PUMP. THE SMELL OCCURS WHEN STATIONARY AND ON THE STREET WHICH THE FUEL SMELL IS ALSO APPARENT INSIDE THE CABIN.
I PURCHASED A SECOND 2005 AMG C55 AND ONCE AGAIN, EXPERIENCED FUEL LEAKING AT TOP OF FUEL SENDING UNIT. THIS IS IDENTICAL TO THE ISSUE FOUND IN NHTSA ACTION NUMBER : EA13003. EA13003 SHOULD BE EXPANDED TO 2005 & 2006 C55 AMG'S THE PROBLEM IS VERY DANGEROUS AS GASOLINE POOLS AT THE TOP OF THE SENDING UNIT AFTER FILLING THE GAS TANK. SAID POOLING IS BENEATH THE REAR PASSENGER SEAT.
VEHICLE EXHIBITING SAME CHARACTERISTICS OF FUEL LEAK FROM GAS TANK AS OTHER VEHICLE MODELS INVOLVED IN NHTSA INVESTIGATION EA13-003. STRONG FUEL ODOR ORIGINATING FROM LEFT REAR SECTION OF THE VEHICLE BEHIND LEFT REAR WHEEL AFTER FILL-UP. ONLY OCCURS AFTER FILL-UP WITH FUEL TANK OF GAS. THE NHTSA INVESTIGATION EA13-003 NEEDS TO BE EXPANDED TO INCLUDE MY MODEL VEHICLE, C55 AMG.
I RECENTLY NOTICED THE SMELL OF GAS ON THIS VEHICLE OR OF GAS COMING FROM MY REAR SEAT. I TOOK IT TO A MECHANIC SHOP AND HE STATED THAT THE GAS TANK HAD A LEAK ON TOP SOMEWHERE. HE STATED THAT THIS IS A PRETTY COMMON PROBLEM IN THESE MERCEDES. MY KIDS TRAVEL VEHICLE TRAVEL WITH. THEY END UP WITH REALLY BAD HEADACHES. I HAVE READ OTHER POSTS THAT HAVE THE SIMILAR PROBLEM THAT I'M HAVING. I THINK THIS IS A VERY SERIOUS PROBLEM PEOPLE COULD END UP GETTING HURT. SOME COULD GET SERIOUSLY HURT. I WILL COPY THIS MESSAGE. *TR
BEGAN TO SMELL A STRONG ODOR OF FUEL EVAPORATION FROM VEHICLE, BOTH WHILE DRIVING AND ALSO WHILE PARKED. CONFIRMED TO BE SOME TYPE OF FUEL LEAK AT OR NEAR THE TOP OF THE FUEL TANK. WE WERE ADVISED THAT THIS IS A KNOWN AND COMMON PROBLEM WITH THIS MAKE OF VEHICLE AND THAT THE COSTS ASSOCIATED WITH THE REPAIR WILL BE SUBSTANTIAL. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026