34 of the 82 complaints filed about the Mercedes Benz CLS550 are about the fuel system — 41% of everything owners reported. The worst model year for it is 2007.
34
Complaints
41%
Share of all complaints
0
Crashes
0
Fires
FUEL/PROPULSION SYSTEM
The fuel tank has a leak from a defect in the plastic, and my local Mercedes dealership is unwilling to honor the Warranty Coverage Extension that covered fuel tank components to replace the fuel tank.
NHTSA complaint #11693552 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
The failed component of the car was the drivers side fuel transfer pump. After noticing the faint smell of gas in my car i checked under the rear driver side passenger seat. I was shocked to find more than 16 fluid ounces of gas floating freely around the well of the gas pump.the insulation under the rear passenger seat is soaked in gas. I can only imagine what could’ve happened if there was an accident or if someone even sparked a cigarette in my car. Not only is this extremely dangerous, there are negative consequences that result from inhaling gas constantly while driving. Gas contains cancerous properties, people should not be subject to unknowingly driving around a car that is manufactured to the defect of releasing cancerous vapors. Who knows what damage inhaling gas fumes for the past months has done to me or my passengers. In the even that someone were to spark a cigarette in the car it was possible that the car could’ve caught fire. The passengers in the rear right seats would be affected the most, the insulation under their seat is soaked in gas. This problem has possibly been noticed by dealers and identified in a warranty that expired on 4/24/2023. This warranty was issued for fuel tanks and fuel components. I am not sure whether the gas pump was affected but the gas pump alone constitutes a recall. This is a very common problem as well, apparently there are multiple youtube videos demonstrating gas leaks in the back seat. Upon contacting dealer I was informed that they did not know if the gas pump was included in a warranty that expired in 4/24/2023. I would have to pay for an inspection to determine if the gas pump is related to the warranty. In the case that it was related the financial obligation to repair is my burden. The dealer wont inspect the vehicle unless I pay, I have documented photo and video of the gas well and the extent of the leakage. There was no warning or any indication that I was driving around with this dangerous issue.
NHTSA complaint #11638320 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Fuel/propulsion system failed during operation on X-Way. Squeaking noise front suspension. Wheel rims cracking. Replacement key fob not working.
NHTSA complaint #11492439 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
Re 2006 MERCEDES BENZ CLS500_ 211017_114326 On August 9, 2021, my brakes went out on the freeway when trying to dodge debris and other vehicles, when the brakes completely went out and caused me to run over major wood pallet debris, and scared for my.life to get to the far right lane to make it off te exit with no brakes whatsoever. and causing major under-carriage repairs. Rather than hit the cars on each side of me, all I could do at that point was get over lanes with no brakes, and make it off the exit before I killed myself and/or someone else. The damage done from the brakes going out, came to over $4000 in damage repairs to the under-carriage and left me without a vehicle for 45 days while in the shop This not only effected my income since the vehicle was used for Lyft,, but I also was evicted from my apt. 30 days later, while my vehicle was in the shop, and unable to work to pay my rent. Once getting the car back these past few weeks, even though repairs were done, the car has continued to threaten my life and others, as the brakes continue to randomly go out at a light, on the freeway, behind a merging car, and Ive come so close to having another bad accident. Not to mention since the accident, I am now getting gasoline fumes that seep throughout my car while driving, so profusely, its causing me migraines. But most of all the RISK OF A FIRE!
NHTSA complaint #11437059 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
SMELLS LIKE GAS INSIDE THE CAR AFTER FILLING UP WITH FUEL. ONLY SMELLS INSIDE THE CAR AND IS VERY STRONG.
NHTSA complaint #11385141 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
I AM REFERENCING ACTION # PE12001. AFTER EACH OF MY LAST TWO FUEL FILLLINGS, THE CAR IS EMITTING A VERY STRONG SMELL OF GASOLINE FROM THE BACK SEAT & TRUNK COMPARTMENT. I PARK MY CAR IN MY GARAGE AND THE SMELL IS STRONG ENOUGH THAT I CAN SMELL IT IN MY HOME. I AM EXTREMELY FEARFUL THAT THERE WILL BE A FIRE. I DO NOT DESIRE TO PARK MY CAR OUTSIDE, BUT I BELIEVE THE CAR IS UNSAFE TO KEEP IN GARAGE. I HAVE LOST CONFIDENCE IN MY CAR FEARING THAT EVEN DRIVING IT AROUND TOWN COULD POSE A DANGER TO ME AND MY PASSENGERS.
NHTSA complaint #11024177 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
NOTE THAT THE VEHICLE ON HAS 43,733 MILES - CABIN INTERIOR STRONG LIVE FUEL FUMES - CONSTANT GAS FUMES ON THE INSIDE OF THE CAR CABIN. NOTE THAT THE CAR WAS STATIONARY AT MY RESIDENCE PARKING. I DID NOT KNOW WHERE WERE THE FUMES COMING FROM AT THE TIME. GOT A HEADACHE JUST FOR THE MOMENT I WAS TRYING TO DETERMINED WHERE WERE THE FUMES COMING FROM. THIS IS CURRENTLY FOR ALL DRIVERS AND OWNERS A VERY HAZARDOUS DANGEROUS CONDITION TO ALL EXTREMES, VERY HIGH RISK FROM IGNITION FROM STATIC OR ELECTRICAL, DUE TO WIRE HARDNESS IN THE AREA. VEHICLE WAS TOWED AND TOOK IT TO MERCEDES BENZ DEALER AND FOUND THE FOLLOWING: LEAKAGE IN FUEL SYSTEM. REPLACED FUEL TANK FUEL TANK DRAIN/FILL OBSERVED ACCIDENT PREVENTION REGULATION "12 WL08" FUEL TANK AND FUEL FOR STORAGEBRING OBSERVE ACCIDENT PREVENTION REGULATION "12 WL08" PERFORMED BY MERCEDES-BENZ OF NEW ORLEANS. FUEL TANK LEAKING IN THE INTERIOR WAS FOUND / WAS DRAINED & REFILLED AND FUEL TANK REPLACED. THIS WAS COVER UNDER A NEW SETTLEMENT WITH MERCEDES BENZ AND NHTSA. I THINK THAT THIS SHOULD HAVE BEEN A RECALL WHEN IT RELATES TO SAFETY FACTORS.
NHTSA complaint #10986233 — an unverified report by a vehicle owner.
FUEL SYSTEM, GASOLINE
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!
NHTSA complaint #10947866 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ CLS550. WHEN THE CONTACT ENTERED THE VEHICLE, A FUEL ODOR WAS NOTICED WITHOUT WARNING. THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FUEL TANK WAS CRACKED AND LEAKED FUEL. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THERE WAS NO RECALL. THE MANUFACTURER STATED THAT THE VEHICLE WOULD BE REPAIRED FOR FREE IF THE CONTACT TOOK THE VEHICLE TO A MERCEDES DEALER. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 200,000. THE VIN WAS NOT PROVIDED.
NHTSA complaint #10944176 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
LEAKING FUEL AROUND THE FUEL SENDING UNIT UNDER REAR SEAT BEHIND DRIVER, FILLING THE PASSENGER COMPARTMENT WITH GASOLINE FUMES, AFTER FILLING THE CAR UP WITH GASOLINE.
NHTSA complaint #10926259 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
I OWNED 2007 MERCEDE CLS550. I NOTES A STRONG GAS SMELL INSIDE AND OUT SIDE THE CAR AFTER I FILL IT UP. I REPLACED THE FUEL CAP BUT NO HELP. FUMES FILL UP MY CAR AND MY GARAGE EVERY TIME I FILL UP NOW.
NHTSA complaint #10862891 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
EVERY TIME I FILL UP MY TANK WITH GASOLINE, ONCE I PARK IN THE GARAGE, THE GARAGE IS FILLED WITH STRONG GAS FUMES FROM MY CAR. I CHECKED FOR LEAKS UNDER THE CAR AND FOUND NOTHING. I HAVE TO RAISE THE GARAGE DOOR TO LET THE FUMES OUT, DUE TO GETTING LIGHTHEADED FROM THE FUMES. THE FUMES REMAIN WITH THE CAR FOR 7-10 DAYS. THIS HAS BEEN GOING ON FOR THE PAST FOUR YEARS. THIS PROBLEM IS A DANGER TO MY FAMILY'S HEALTH!!!! SURELY, THERE IS A RECALL ON THIS PROBLEM! 2ND ISSUE: I TURNED MY CAR OFF AND THE FAN KEPT RUNNING. I NOTICED THAT THE FAN WAS SO LOUD THAT IT SOUNDED LIKE IT WAS ABOUT TO BLOW UP. BLACK SMOKE CAME FROM UNDER THE HOOD. I WENT ON INTO THE BUILDING TO MY MEETING FOR AN HOUR. WHEN I CAME BACK OUTSIDE, THE FAN WAS STILL GOING AND STILL LOUD. THIS HAD NEVER HAPPENED IN THE FIVE YEARS THAT I HAD THE CAR. THE CAR WOULD NOT START. I HAD TO CALL SOMEONE TO BOOST IT OFF TO START. I THEN WENT TO THE SHOP TO CHECK TO SEE IF I HAD BATTERY OR STARTER PROBLEMS. NO PROBLEMS FOUND IN EITHER. THIS HAS HAPPENED TWICE SINCE THEN. I AM AFRAID THAT THE CAR WILL CATCH FIRE WITH ME IN IT OR MY FAMILY OR FRIENDS. 3RD ISSUE I WAS DRIVING ALONG AND THE DASHBOARD READ OUT IN RED TO STOP THE CAR ..VEHICLE IS TOO LOW... WHEN STOPPED, I NOTICED THAT THE PASSENGER SIDE OF THE CAR WAS LOW AND THE DRIVER SIDE IS RAISED HIGH. I HAVE TO SIT THERE FOR A FEW MINUTES UNTIL THE RED LIGHTS WENT OUT. THIS HAPPENS OFTEN. 4TH TIRE PRESSURE LIGHT STAYS ON. I TOOK IT TO CHECK ON PRESSURE, IT WAS OK. I DID NOT NEED NEW TIRES EITHER. THE YELLOW LIGHT STAYS ON AND THIS WEEK THE RED LIGHT POPPED ON AND WILL NOT GO OFF. 5TH THE CHECK ENGINE LIGHT STAYS ON AND MECHANIC CAN NOT FIND THE PROBLEM. 6TH STEERING SYSTEM LOUD POPPING NOISE WHEN I BACK UP OR TURN STEERING WHEEL. IT USED TO BE RANDOM BUT NOW IT IS EVERY TIME I DRIVE THE CAR.
NHTSA complaint #10851440 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
TL* THE CONTACT OWNS A 2007 MERCEDES BENZ CLS550. AFTER REFUELING THE VEHICLE, THERE WAS A STRONG ODOR OF FUEL PRESENT INSIDE THE CABIN OF THE VEHICLE. IN ADDITION, THE VEHICLE FAILED TO START ON SEVERAL OCCASIONS. THE CONTACT NOTICED THAT THERE WAS FUEL LEAKING FROM UNDER THE DRIVER SIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE LEFT FUEL LEVEL SENSOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.
NHTSA complaint #10782959 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
TL* THE CONTACT OWNS A 2007 MERCEDES BENZ CLS550. THE CONTACT STATED THAT STRONG FUEL FUMES WERE PRESENT INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, BUT A LEAK COULD NOT BE DETECTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 51,000.
NHTSA complaint #10744198 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
THERE IS A FUEL LEAKING INTO THE BACKSEAT OF MY 2007 MERCEDES BENZ CLS 550 I BEGAN NOTICING THE SMELL IN MY CAR A FEW MONTHS AGO AND I FINALLY DECIDED TO REMOVE THE BACK SEAT, UNDER THE BACK SEAT LIES THE FUEL TANK AND A FUEL FILTER MODULE WHICH IS LEAKING AND CREATING A SMALL POOL OF FUEL AND A FUEL SCENT IN MY CAR. INCIDENTALLY MERCEDES HAD A RECALL ON THE MERCEDES BENZ 2006 CLS (VOLUNTARY EMISSIONS RECALL CAMPAIGN #2008-020001) MY CAR IS A MERCEDES BENZ 2007 CLS WITH THE EXACT SAME PROBLEM. I WOULD LIKE TO FILE THIS COMPLAINT AND ASK THAT YOU HELP ME IN GETTING MERCEDES BENZ TO TAKE RESPONSIBILITY FOR THIS FAULTY FUEL FILTER MODULE AND INITIATE A RECALL TO REPAIR THIS PROBLEM. THIS PROBLEM HAS BEEN DOCUMENTED EXTENSIVELY ON MANY MERCEDES BENZ FORUMS HTTP://WWW.MBCA.ORG/FORUM/GAS-LEAK-SENDING-UNIT THIS ISSUE CREATES AN IMMEDIATE HAZARD TO ME, MY FAMILY AND OTHER DRIVERS. I ASK THAT YOU TAKE QUICK ACTION IN CONTACTING MERCEDES BENZ DEMANDING THEY MAKE AMENDS TO THIS ISSUE BEFORE SOMEONE GETS SERIOUSLY INJURED.
NHTSA complaint #10732982 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
HI I HAVE 2007 MERCEDES CLS550 79000 MILES.I HAD THE CAR FOR PAST 2 YEARS ARE WEEK AGO AFTER REFILING THE GAS TANK ARE STRONG GAS SMELL APPEAR INSIDE THE CAR AND OUT SIDE ALSO.I WAS WORRY FOR MY SAFETY AND I START READING ABOUT THE SAME PROBLEMS AND CURRENT CAMPAIGN AND RECALL FOR MERCEDES E CLASS W211 2003 TO 2009 SO I REMOVE MY REAR PASSENGER SEAT TO LOCATE THE PUMP AND THE SENDING UNIT THERE WAS BIG PUDDLE OF RAW GASOLINE INSIDE THE CABIN AROUND 200-300ML THERE WAS SO MUCH THERE THE WIRES FOR THE PUMP AND SENSORS WAS UNDER THE FUEL. I CALLED THE DEALER THEY REFUSE TO DO RECALL FOR MY CAR MY CAR USE THE SAME GAS TANK AND SAME PUMP AND SENDING UNIT LIKE E CLASS FROM 2003 TO 2008.. SO IF ONE PART IS DEFECTIVE(THE GAS TANK) WILL BE STILL DEFECTIVE IF MERCEDES PUT IN DIFFERENT MODEL CAR.MY CAR IS NOT SAFE ANY MORE IM SCARY TO DRIVE IT ANY MORE .
NHTSA complaint #10730512 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
UPON SMELLING GASOLINE WHEN THE AUTO IN QUESTION WAS FILLED, WE WERE DIRECTED MY MERCEDES DEALERSHIP ON WEST SAHARA IN THE CITY OF LAS VEGAS IN THE STATE OF NEVADA. THE OWNER REPLACED THE GAS CAP. THE AUTO IN QUESTION CONTINUED TO SMELL OF GASOLINE OFF AND ON. IN SEPTEMBER OF 2014 THE AUTO DISPLAYED A SIGNAL AT THE ENGINE NEEDED TO BE LOOKED AT. THE AUTO WAS TAKEN BACK TO MERCEDES ON WEST SAHARA AND THE OWNER WAS INFORMED THAT THERE WAS A FUEL TANK LEAK. DUE TO THE QUOTE OF $3500 TO FIX THE ISSUE, THE AUTO WAS TAKEN TO G&G AUTO AND AUTHORIZED MERCEDES REPAIR SHOP IN LAS VEGAS. THE LEAD MECHANIC CONFIRMED THE FUEL TANK LEAK AND SHOWED THE OWNER HOW THE GAS POOLED ON TOP OF THE TANK WHICH IS JUST UNDER THE BACK SEAT. OBVIOUSLY A HUGE DANGER. THE OWNER OF G&G AUTOSHOP INFORMED THE OWNER THAT THIS IS A VERY COMMON PROBLEM AND ALERTED US TO THE DOCUMENTATION ON THE INTERNET REGARDING CLASS ACTION LAW SUITS. THE OWNER CONTACTED MERCEDES HEAD QUARTERS IN NEW YORK CITY AND WELL AS THE GENERAL MANGER OF THE WEST SAHARA SERVICE CENTER. THE OWNER WAS TOLD THAT THE CAR WAS NO LONGER UNDER WARRANTY AND THEY WOULD NOT REPAIR THE CAR UNLESS PAID. THE CAR WAS ULTIMATELY REPAIRED AT G&G AUTO SHOP.
NHTSA complaint #10651540 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
I STARTED TO NOTICE A STRONG SMELL OF GASOLINE INSIDE AND AROUND MY CAR. THIS OCCURRED SOON AFTER FILLING UP MY GAS TANK. I LOOKED AROUND MY CAR TO SEE IF I COULD DETECT ANY LEAKING, OR PUDDLING UNDERNEATH MY CAR BUT DIDN'T NOTICE MANY DRIPS. THE STRENGTH OF THE SMELL DECREASED AS I DROVE AND AS THE GAS TANK LEVEL DECREASED. THE NEXT TIME I FILLED UP MY GAS TANK THE SMELL CAME BACK AND WAS VERY STRONG. ANYONE WHO RODE IN THE CAR WITH ME INCLUDING MY WIFE AND OUR SON, WOULD COMMENT ON THE SMELL. AFTER DOING SOME RESEARCH I REALIZED THAT MANY OTHERS HAVE HAD THIS PROBLEM, AND THAT THERE IS EVEN A CLASS ACTION SUIT OPEN FOR THIS SAME TYPE OF DEFECT IN ANOTHER YEAR AND MODEL MERCEDES. I CALLED TO FILE A CLAIM WITH MERCEDES USA, AND THEY SAID THAT THIS IS NOT SOMETHING THAT THEY WOULD COVER THE REPAIRS ON. I CAN'T BELIEVE THAT MERCEDES USA WOULDN'T COVER DEFECT REPAIRS FOR AN ISSUE MANY PEOPLE HAVE HAD, ESPECIALLY WITH THE HEALTH AND SAFETY RISKS ASSOCIATED WITH GASOLINE LEAKING FROM THE GAS TANK, AS WELL AS THE GASOLINE FUMES LEAKING INTO THE CABIN OF THE CAR. I HOPE THERE ARE ENOUGH PEOPLE THAT VOICE THEIR SIMILAR EXPERIENCE SO THAT A GOVERNMENT INVESTIGATION CAN BRING OUT THE FACTS OF THIS OBVIOUS DEFECTIVE ISSUE. LONG TERM EFFECTS OF GASOLINE FUME INHALATION ARE SUSPECT TO CAUSE CANCER.
NHTSA complaint #10637119 — an unverified report by a vehicle owner.
FUEL/PROPULSION SYSTEM
I'VE HAD THIS VEHICLE FOR YEARS. EACH TIME I FILLUP, THERE IS A VERY INTOXICATING SMELL OF FUEL INSIDE AND OUTSIDE THE VEHICLE. I WAS READING UP ON IT AND SEEMS TO BE A COMMON PROBLEM. THIS IS A TRUE HEALTH HAZARD AS YOU CANNOT BREATHE RIGHT BECAUSE OF THE FUMES. NOT TO MENTION THE CHANCES OF IT CATCHING FIRE.
NHTSA complaint #10619476 — an unverified report by a vehicle owner.
FUEL SYSTEM, GASOLINE
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.
NHTSA complaint #10618083 — an unverified report by a vehicle owner.