There are 2 stored owner reports matching the fuel system leading-label group for the 2009 Mercedes-Benz S-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)I PURCHASED A LAVISH S550 AND OVER TIME I STARTED SMELLING GAS IN THE CABIN. I DIDN'T THINK TOO MUCH ABOUT IT UNTIL THE SMELL BECAME MORE PUNGENT. I GO ONLINE TO DO SOME RESEARCH AND FIND OUT SOME OF THE CARS HAD FAULTY FUEL PUMPS WHICH LEAK INTO THE BACKSEAT. NOT ONLY DOES IT LEAK BUT THE VAPORS ARE SPREAD THROUGHOUT THE CABIN MAKING IT UNBEARABLE TO BREATH. I TOOK THE CAR IN TO MERCEDES AND THEY DON'T WANNA OWN UP TO THERE FAULTY EQUIPMENT. WITH THE TEMPERATURE BEING EXTREMELY HOT I WOULD THINK MY CAR WOULD BLOW UP BECAUSE IT IS A BLACK CAR. ANY HELP WITH THIS MATTER IS APPRECIATED. MERCEDES OF SOUTH ATLANTA (SERVICE ADVISOR-TUTT) INFORMED ME TO PAY $2100 TO FIX. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).' *PM
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ S63. THE CONTACT STATED THAT HE NOTICED A STRONG GASOLINE ODOR INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS WHERE THE CONTACT WAS ADVISED THAT THE FUEL PUMP WAS FRACTURED AND NEEDED TO BE REPLACED ALONG WITH THE REAR PASSENGER'S SIDE SENDING UNIT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 59,828. UPDATED 6/10/14*CN ACCORDING TO THE SERVICE INVOICE, THE FUEL TANK WAS CRACKED AS WELL. UPDATED 07/24/14
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.