2006 Mercedes-Benz C350 Fuel system Problems

At 9,000 miles my 2006 Mercedes C350 had to have a fuel pump replaced. It was out of warranty (low miles usage for 5 year old car) so I had to pay $900 for the repair. I could smell fuel everytime I filled the tank and the Mercedes dealer said the pump had to be replaced. I read about a recall of E350 models being recalled for the same reason with the same engine. I asked the dealer about this and they said mine was not part of the recall because it is a C class Mercedes. It has the same engine with the same problem and I think this should be looked into.

NHTSA ID

11455570

Incident

Mar 7, 2022

Fuel flex line from firewall to Fuel rail is leaking at both connections, ie. both ends at the swaged fitting.

NHTSA ID

11419055

Incident

May 30, 2021

IN JULY 2009, AFTER FILLING MY VEHICLE WITH GASOLINE (38,000 MILES), I DROVE HOME, PARKED MY VEHICLE IN MY GARAGE AND EXITED THE INTERIOR. AFTER EXITING, I SMELLED THE VERY STRONG ODOR OF GASOLINE EMITTING FROM, WHAT APPEARED THE REAR OF THE CAR. I DID NOT SEE ANY LEAKS OR ANY EVIDENCE OF FUEL, SO I WENT INSIDE MY HOUSE. SEVERAL HOURS LATER, I ENTERED MY GARAGE AND WAS IMMEDIATELY OVERWHELMED WITH THE FUMES OF GASOLINE. I CHECKED MY CAR AGAIN, BUT WAS UNABLE TO FIND ANY LEAKS. I THEN OPEN MY CAR DOOR AND THE FUMES WERE EVEN STRONGER. AFTER LOOKING AROUND, I NOTICED THE ODOR WAS COMING FROM UNDER THE REAR SEAT. FEARING AN EXPLOSION MAY OCCUR, I OPENED MY GARAGE DOORS AND CAR DOOR AND TURNED ON SEVERAL FANS TO "AIR-OUT" THE AREA. THE NEXT DAY, I DROVE TO THE DEALER AND EXPLAINED. THE SERVICE MANAGER SAID IT WAS A COMMON PROBLEM WITH MY YEAR AND MODEL AND SAID THE FUEL GASKETS WERE BAD ON TOP OF THE GAS TANK WHICH IS RIGHT UNDER THE BACK SEAT. HE EXPLAINED WHEN FILLING UP, THE SEALS LEAK, BECOME SATURATED WITH FUEL AND EVEN SATURATE THE BOTTOM SIDE OF THE SEAT. HE SAID IF I WANTED IT FIXED, IT WOULD BE AN ESTIMATED $500. HE ALSO SAID IF I DID NOT WANT TO PAY TO FIX IT, HE SUGGESTED I ONLY FILL MY TANK TO 3/4 SO THE SEALS WOULD NOT BECOME WET. I EXPLAINED TO HIM THAT MY CAR WAS STILL LIKE NEW WITH ONLY 38,000 MILES AND MBZ SHOULD FIX THE MANUFACTURER DEFECT AT NO CHARGE. HE REFUSED. I CONTINUE TO DEAL WITH THIS DANGEROUS, FAULTY ISSUE TODAY. MY CAR ONLY HAS 79,000 MILES ON IT AND THE PROBLEM CONTINUES TO GET WORSE. I NOTICED SEVERAL OTHERS HAVE THE SAME PROBLEM AND LAWSUITS HAVE BEEN FILED, HOWEVER, I DO NOT KNOW THEIR STATUS. CAN YOU PLEASE ASSIST ME WITH THIS DANGEROUS ISSUE. MY FAMILY AND I SUFFER FROM SEVERE HEADACHES EACH TIME THIS PROBLEM OCCURS. THANK YOU VERY MUCH.

NHTSA ID

10927526

Incident

Jul 10, 2009

Mileage

38,000 mi

I HAVE A VERY LOUD ODOR OF GASOLINE COMING FROM NEAR MY BACK WHEEL ON THE DRIVERS SIDE. THE CAR RIDES FINE AND I GET GOOD GAS MILEAGE BUT IT IS NOT LEAKING ANYWHERE. I TOOK MY BACKSEAT OUT AND THERE WAS NOTHING WET. I ALSO REPLACED THE GAS CAP AND IT DID NOT HELP

NHTSA ID

10864231

Incident

May 1, 2016

Mileage

195,000 mi

WHEN THE GAS TANK IS FILLED PAST TO FULL, THERE IS AN OVERPOWERING FUEL SMELL IN VEHICLE CABIN. THE OFFENDING SMELL ALSO FILLS THE GARAGE AND THE GARAGE DOOR MUST BE PARTIALLY LEFT OPEN FOR SAFETY: FEAR OF EXPLOSION. *TR

NHTSA ID

10712271

Incident

Apr 22, 2015

Mileage

108,085 mi

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ C350. THE CONTACT STATED THAT A STRONG ODOR OF FUEL EMITTED INSIDE THE VEHICLE. THE VEHICLE WAS DIAGNOSED AND REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 116,000.

NHTSA ID

10672393

Incident

Jul 9, 2013

Mileage

116,000 mi

EVERY TIME I FILL UP THE GAS TANK; THERE IS A STRONG ODER OF FUEL IN THE CABIN. MY WIFE AND I HAVE A NEWBORN AND NOW DO NOT FEEL SAFE DRIVING WITH SUCH A STRONG ODOR..THIS IS A SAFETY HAZARD. *TR

NHTSA ID

10654117

Incident

Nov 12, 2013

Mileage

75,000 mi

BOTH SENDING UNITS IN THE FUEL TANK WERE LEAKING AND WERE REPLACED BY RBM MERCEDES OF 7640 ROSWELL ROAD, ATLANTA, GA 30350 FOR THE AMOUNT OF $ 828.05. I HAVE ORIGINAL REPAIR BILL AND IT CAN BE SUBMITTED AT YOUR REQUEST. *TR

NHTSA ID

10564217

Incident

Sep 6, 2011

Mileage

49,539 mi

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ C350. THE CONTACT STATED THAT WHILE THE VEHICLE PARKED, THERE WAS A STRONG FUEL ODOR EMITTED FROM THE VEHICLE WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL PUMP NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS REPAIRED BUT THE FAILURE WAS NOT RESOLVED. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 50,000.

NHTSA ID

10542619

Incident

Jul 3, 2013

Mileage

50,000 mi

AROUND DECEMBER 2010 I BEGAN NOTICING THERE HAS BEEN A GAS SMELL FROM REAR WHEEL HOUSING AND REAR SEAT WHENEVER I FILL UP THE GAS TANK. I HAVE EXPERIENCED WITH VARIOUS FUEL LEVEL AND CONCLUDED THAT GAS SMELL STARTS WHEN GAS IS MORE THAN 3/4 FULL. I HAVE BEEN TRYING NOT TO FILL GAS MORE THAN 3/4 AND HAVE RECENTLY CHANGED A DELIVERY UNIT AND ALL THE SEALS, WHICH HAVE BEEN PROBLEMATIC AREAS FOR MANY MERCEDES. THE GAS SMELL DID NOT GO AWAY AND I DON'T FEEL SAFE DUE TO THE RISK OF FIRE IN ADDITION TO THE UNPLEASANT GAS SMELL IN THE CABIN. *TR

NHTSA ID

10510660

Incident

Dec 10, 2010

Mileage

43,000 mi

UPON FILLING GAS TANK NOTICED FUEL SMELL IN GARAGE. THIS HAPPENED MANY TIMES. DECIDED NOT TO FILL COMPLETELY, AND SMELL WENT AWAY. I NOW ONLY PUT 10 GALLONS IN THE TANK AND DO NOT FILL UP. I'M SENDING THIS BECAUSE I SAW AN ARTICLE IN THE LA TIMES INDICATING THIS MAY BE PROBLEM WITH "E" CLASS VEHICLES. *TR

NHTSA ID

10503953

Incident

Feb 1, 2012

Mileage

60,000 mi