2007 Mercedes Benz CLS550

MY HUSBAND AND I PURCHASED THE 2007 CLS550 ABOUT SEPTEMBER 2015. WE NOTICED WHEN FILLING THE VEHICLE WITH GAS, WE WOULD HAVE GAS FUMES IN THE VEHICLE SPECIFICALLY ON THE PASSENGER SIDE REAR INSIDE AND OUTSIDE. THE FUMES WERE LIGHT AND WOULD DISSIPATE ONCE THE VEHICLE WAS DRIVEN TO REDUCE THE AMOUNT OF GAS IN THE TANK TO ABOUT THREE-QUARTERS TANK. LAST WEEK WE FILLED THE TANK AND THE SMALL IS NOW STRONGER AND HAS YET TO DISSIPATE ALTHOUGH WE HAVE A QUARTER TANK OF GAS REMAINING. I CHECKED FOR ANY RECALLS ON THIS SINCE WE HAVE NO KNOWLEDGE OF THE VEHICLE HAVING BEEN IN ANY ACCIDENTS, BUT FIND WE DO NOT. THIS ONLINE SEARCH DID NOT REVEAL ANY RECALLS FOR THE GAS FUMES, BUT I NOTED THERE ARE MULTIPLE COMPLAINTS ABOUT THE SAME PROBLEM FOR THIS YEAR, MAKE AND MODEL OF VEHICLE. HAVE ANY PEOPLE DIED FROM THIS, ANY FIRES, ACCIDENTS AS A RESULT? WE HAVE NOT YET, BUT WILL BE TAKING OUR VEHICLE IN FOR EVALUATION OF THE PROBLEM AND WOULD BE ABLE TO PROVIDE DOCUMENTATION OF THE RESULTS IN THE FUTURE. GIVEN THE NAME, I AM SURPRISED MERCEDES IS NOT STEPPING UP HERE! *TR

I FILLED MY CAR UP SUNDAY AND PARKED IT IN THE GARAGE, THE FOLLOWING MORNING THERE WAS A STRONG FUEL SMELL THAT PERMEATED THE GARAGE AND ALL AROUND THE CAR. I LOOKED FOR LEAKS FOUND NONE. THE SMELL WAS COMING FROM UNDER THE SEAT ON THE DRIVERS SIDE REAR. I REVIEWED SOME ONLINE FORUMS AND NOTICED THIS SEEMS TO BE A COMMON OCCURENCE WITH THESE VEHICLES. THIS IS VERY DANGEROUS AND A SAFTEY HAZARD. *TR

WHEN I FILL MY VEHICLE UP WITH GAS, THE FUMES FILL UP MY CAR AND MY GARAGE. AFTER I DRIVE MY CAR AND THE GAS GOES DOWN TO 3/4 A TANK, THE FUMES RESIDE. I CAN ONLY FILL MY CAR UP 3/4 OF A WAY WITHOUT THE FUMES ENTERING MY CAR. I TOOK MY CAR TO THE DEALERSHIP AND THEY REMOVED THE BACK SEAT AND SAW THAT THE GAS WAS FILLING UP UNDER THE SEAT. THEY FOUND A LEAK AT THE FUEL GAUGE SENDING UNIT. THE SENDING UNIT NEEDS TO BE REPLACED. *TR

WHEN I FILL UP MY CAR WITH GAS THERE IS A STRONG GAS ODOR AROUND THE LEFT BACK SEAT ON THE INTERIOR AND AROUND THE LEFT REAR WHEEL ON THE OUTSIDE. AFTER FURTHER INVESTIGATION I FOUND GAS LEAKING AROUND THE LEFT SENDING UNIT / PUMP. THIS IS A SERIOUS DESIGN FLAW AS THE SENDING UNIT / PUMP IS MADE OF PLASTIC AND SERVERS A STRUCTURAL MEMBER TO SUSPEND THE UNIT IN PLACE. THE PRESENCE OF GAS FUMES IN THE INTERIOR IS A FIRE AND HUMAN HEALTH HAZARD AND THE GAS FUMES ON THE OUTSIDE OF THE CAR IS AT MINIMUM A FIRE HAZARD. THIS APPEARS TO BE A COMMON DEFECT ON MERCEDES CLS AND E-CLASS BETWEEN 2004 - 2008. THANKS FOR YOUR ASSISTANCE IN THIS MATTER. *TR

I HAD FILLED MY CAR UP WITH GAS THE NIGHT BEFORE I NOTICED THE INCIDENT. THE NEXT DAY WHEN I WENT INSIDE OF MY VEHICLE IT HAD SPELLED HORRIBLY OF GAS, SO BAD I WAS GETTING LIGHT HEADED FROM THE FUMES AND HAD TO KEEP THE WINDOW'S OPEN TO AIR OUT. BUT THE SMELL HAS REMAINED FOR A WEEK NOW.. I LOCATED THE SOURCE OF THE SMELL COMING FROM THE REAR SEAT ON THE DRIVERS SIDE, I REMOVED THE REAR SEAT CUSHION AND IT SMELLS AS IF IT WAS DOUSED WITH FUEL. EVEN WITH THE SEAT REMOVED THE SMELL REMAINS. I PROCEEDED TO LOOK ONLINE ABOUT COMMON ISSUES FOR THIS PROBLEM, I NOTICED A RECALL ON THE FUEL SENDER UNIT FOR PREVIOUS YEARS BUT NOT THE 2007 MODEL OF MY VEHICLE. I HAVE SEEN MANY PEOPLE COMPLAIN OF THIS EXACT ISSUE FOR THE 2007 MODEL. I CALLED THE MERCEDES DEALER ABOUT THE ISSUE AND THEY SAY THERE IS NO RECALL FOR MY MODEL EXCEPT FOR THE CAMSHAFT SELENOID. THIS IS A HIGHLY IMPORTANT ISSUE THAT SHOULD BE LOOKED INTO, I HAVE MY CHILDREN IN THE CAR AT TIMES. I HAVE MADE AN APPOINTMENT WITH THE DEALER TO FURTHER LOOK INTO MY PROBLEM BUT I THINK THIS SHOULD BE INVESTIGATED AND REPORTED AS A RECALL SINCE OTHERS HAVE THE SAME ISSUE.

CHECK ENGINE LIGHT CAME ON. READS P0456 EVAP SMALL LEAK DETECTED. AFTER FILLING GAS TANK FULL OR ANYTHING OVER 3/4 FULL. STRONG GAS FUMES SMELL INSIDE AND OUTSIDE OF CAR. CHECKED TOP OF FUEL PUMP UNDER REAR DRIVER'S SEAT. FUEL WAS PUDDLED ON TOP OF THIS UNIT. (I HAVE PICTURES IF NEEDED) REPLACED FUEL PUMP SEAL RING AND GAS CAP WITH NEW PARTS. PROBLEM HAS CAME BACK WITH MORE CHECK ENGINE CODES AND STRONG GAS SMELL/FUMES INSIDE CAR. I BELIEVE E-CLASS 03-06 HAVE SAME SAFETY ISSUES, AND HOPE MY 07 CLS550 WILL BE INCLUDED IN A POSSIBLE RECALL, ETC. AS I BELIEVE THE CARS USE SAME PARTS/PLATFORM. REFER TO: NHTSA# PE12001. *TR

2007 MERCEDES BENZ CLS-550, FUEL SYSTEM LEAK, 24,272 MILES, TOWED TO DEALER, DEALER CLAIMED THAT FUEL SENDER CAP WAS VERY LOOSE, DEALER REPLACED GASKET FOR FUEL SENDER. FOURTEEN DAYS AFTER, REFILLED CAR WITH GASOLINE, HAD A FUEL LEAK AGAIN, DROVE TO LOCAL REPAIR SHOP, MECHANIC FOUND FUEL LEAKING FROM FUEL SENDER HOUSING THE PLASTIC PLUG USED TO MOUNT PRESSURE SENSOR FOR EVAP. SYSTEM, NEEDS REPLACEMENT OF FUEL SENDER. *TR