2006 Mercedes-Benz CLS500 Fuel system Problems

VERY STRONG GAS SMELL INSIDE THE CAR AND OUTSIDE THE CAR. GAS LEAKING ON THE FLOOR FROM GAS TANK AREA.

NHTSA ID

11397990

Incident

Feb 1, 2021

BOUGHT THE 2006 CLS 500 2 YEARS AGO, SINCE THAT SECOND DAY I HAVE ISSUES WITH SBC MODULE, I CALL MB DEALER THEY TOLD ME MY CAR WAS OUT OF WARRANTY, SINCE THE PRODUCTION DATE WAS 2004, OKAY AFTER THAT I TRY SEVERAL OTHER MECHANICS AND NOBODY HAVE THE STAR TOOL TO FIX UP, THE CAR IS NOT SAFE TO DRIVE AND I CONTINUE TAKE THE RISK COUPLE MONTHS UNTIL THE FUEL LINE STARTS LEAK ON THE PUMP, THIS COULD GENERATE A SPARK AND BURN MY CAR, I CALL AGAIN MB DEALER AND THEY TOLD ME IS PROBABLY UNSAFE TO START THE CAR. AFTER ALL THIS YEARS I PARKED THE CAR AND ALL MY SUSPENSION WAS BROKE AS WELL, CALL AGAIN THE MB DEALER THEY ESTIMATED $ 1800 TO REPLACE THE AIR SHOCKS, SO I BUY FROM ARNOTT THE SAME MB SELL AND I REPLACE ALL 4, SO THE CAR IS UP AGAIN, NEXT WEEK I DECIDE TO SELL THE VEHICLE AFTER DRIVING IN 3 YEARS 9,000 MILES ONLY, TRY TO MOVE THE CAR FROM THE GARAGE, GUESS WHAT, MY TRANSMISSION GO TO LIMP MODE BECAUSE THE BREAKS ARE NOT WORKING, SO FAR I DECIDE TO WRITE IN HERE TO COMPLAIN WHY A SUCH BEAUTIFUL CAR HAVE SO MANY ISSUES AND MB DOES NOT CARE FOR THE OLD MB. I ALMOST GET ON ACCIDENT WHEN MY BREAKS COMPLETE FROZEN TO THE END !!!

NHTSA ID

11140687

Incident

Sep 1, 2018

Mileage

130,900 mi

IN SEPTEMBER, 2015 TOOK MY VEHICLE TO HOUSTON GREENWAY (3900 SOUTHWEST FREEWAY; HOUSTON, TEXAS 77027) FOR AN INSPECTION OF THE FUEL TANK (STRONG FUEL ODORS WERE DETECTED). THE INSPECTION REVEALED THAT THE FUEL TANK REQUIRED REPLACEMENT. THE REPLACEMENT WORK WAS DONE AND I PAID FOR IT OUT OF POCKET. I RECENTLY RECEIVED A LETTER FROM MBUSA STATING THAT THE MBUSA HAD ELECTED TO EXTEND THE WARRANTY ON MY VEHICLE

NHTSA ID

11053895

Incident

Sep 17, 2015

Mileage

97,759 mi

I BEGAN SMELLING FUEL IN THE CABIN OF MY CAR AND CONTACTED THE MERCEDES BENZ DEALERSHIP IN MY AREA, WESTMINSTER, CO. THE WOMAN I SPOKE WITH TOLD ME THAT SHE WAS UNAWARE OF ANY ISSUES, BUT THAT SHE WOULD LOOK INTO IT AND GET BACK TO ME. I NEVER HEARD BACK. THE SMELL WAS GETTING WORSE AND AFTER 3 WEEKS, I COULD NOT DRIVE WITH MY WINDOWS CLOSED, GAGGED WHEN I GOT INTO THE CAR AND SMELLED LIKE FUEL UPON EXITING THE CAR. I CALLED MERCEDES BENZ AGAIN AND ASKED IF I COULD BRING THE CAR IN. I WAS TOLD I COULD AND THAT THERE WAS A WARRANTY EXTENSION FOR FAULTY FUEL TANKS. THE FUEL TANK WAS ALLEGEDLY REPAIRED, BUT UPON RETURNING THE CAR TO ME, THE CAR STILL SMELLED LIKE FUEL. I THOUGHT THE SMELL MIGHT DISSIPATE OVER A FEW DAYS, BUT IT DID NOT, SEEMED TO GET WORSE AGAIN, SO I TOOK THE CAR BACK IN. I WAS TOLD BY THE SERVICE REP THAT THE FUEL HAD LEAKED INTO THE UNDERLAYMENT OF THE CAR AND WAS DETERIORATING THE FLOOR BOARDS. I WAS ALSO TOLD TO "NOT SMOKE IN THE CAR" BY THE SERVICE REP. MERCEDES BENZ IS NOW REFUSING TO REPAIR THIS DAMAGE CAUSED BY THE FAULTY PART. THEY FEEL THAT THE CAR IS "SAFE" EVEN THOUGH I WAS TOLD NOT TO SMOKE IN IT. I DON'T SMOKE, BUT IF THERE IS AN ELECTRICAL SPARK OR I GET IN AN ACCIDENT, I DON'T WANT THE CAR TO BLOW UP.

NHTSA ID

10934902

Incident

Sep 26, 2016

Mileage

165,000 mi

STRONG SMELL OF GASOLINE IN INTERIOR OF CAR ALONG WITH SMELL IN GARAGE AFTER OVERNIGHT PARKING. CHECKED ENGINE FOR LEAKS AS WELL AS GENERAL TANK AREA. NEGATIVE. I THINK THAT THE FUEL SENDING UNIT (UNDER REAR SEAT MAY BE LOOSE OR DEFECTIVE. CAN'T OVER EMPHASIZE THE STRONG GAS SMELL, WHILE STATIONARY--SEEMS TO DISSIPATE ON MOVEMENT.

NHTSA ID

10839029

Incident

Jan 19, 2016

Mileage

95,000 mi

FUEL PUMP LEAKS AND VAPOR SMELL IS VERY PREVALENT. FUEL TANK ASSEMBLY HAS BEEN ORDERED, BUT APPARENTLY MERCEDES IS VERY SLOW ON SHIPPING THE PARTS BECAUSE THERE ARE SO MANY CARS WITH THIS SAME PROBLEM. BESIDES THE SMELL, I THINK THIS COULD BE DANGEROUS. I HAVE ALWAYS BEEN TOLD THAT WHERE THERE ARE FUMES AN EXPLOSION IS POSSIBLE.I HAVE BEEN TOLD THAT PARTS HAVE TO COME FROM GERMANY SINCE NO ONE IN THE STATES HAS THEM. MERCEDES SHOULD BE ASHAMED AND HELD TO A HIGHER STANDARD. *TR

NHTSA ID

10713318

Incident

Dec 10, 2014

WHEN FUEL TANK IS FILLED COMPLETELY THERE IS AN EXTREMELY STRONG ODOR OF GASOLINE INSIDE AND OUTSIDE CAR. FUEL PUMP HAS BEEN REPLACED AND THE FUEL TANK SEALS HAVE BEEN REPLACED MULTIPLE TIMES WITH NO IMPROVEMENT. GAS CAP WARNING LIGHT NOW COMES ON INTERMITTENTLY AND CHECK ENGINE LIGHT REMAINS ON. HAVE BEEN ADVISED TO REPLACE FUEL TANK NOW. *TR

NHTSA ID

10639660

Incident

Aug 8, 2014

Mileage

75,430 mi

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLS500. WHILE DRIVING APPROXIMATELY 45 MPH, THE CONTACT NOTICED A STRONG FUEL ODOR INSIDE THE VEHICLE. THE DEALER DIAGNOSED THAT THE FUEL PUMP NEEDED TO BE REPLACED. THE MANUFACTURER HAD NOT BEEN NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 109,000.

NHTSA ID

10628183

Incident

Aug 22, 2014

Mileage

109,000 mi

THE CAR GAS SENSOR WAS NOT WORKING. VEHICLE STALLED IN THE MIDDLE OF BUSY INTERSECTION GAS TANK READ THAT THERE WAS 1/4 TANK. COULD HAVE CAUSED A MAJOR COLLISION. PROBLEM WITH THE FUEL SYSTEM, TANK AND SENSORS. THIS IS THE 3RD TIME. FUEL MODULE NOT WORKING CORRECTLY. ALL REPAIRS HAVE BEEN DONE THROUGH MERCEDES DEALERSHIP. THIS PROBLEM NEEDS TO BE LOOKED AT I COULD HAVE BEEN KILLED. THE SYSTEM WAS REPLACED BY MERCEDES TWICE. ON GOING SMELL OF GASOLINE. *TR

NHTSA ID

10574204

Incident

Mar 18, 2014

Mileage

66,397 mi

SMELL OF GASOLINE. FUEL TANK LEAKING. SENSORS FAULTING. *TR

NHTSA ID

10574203

Incident

Aug 29, 2013

Mileage

61,245 mi

VERY STRONG SMELL OF GASOLINE. CAR FUEL TANK READING INCORRECTLY. FUEL SENDING UNIT LEAKING. RAW FUEL LEAKING. *TR

NHTSA ID

10574201

Incident

Apr 13, 2011

Mileage

39,509 mi

VERY STRONG SMELL OF GASOLINE. CAR FUEL TANK READING INCORRECTLY. FUEL SENDING UNIT LEAKING. RAW FUEL LEAKING. *TR

NHTSA ID

10574200

Incident

Apr 13, 2013

Mileage

39,509 mi

AFTER I FILL THE CLS500 MB TANK WITH GAS, AND DRIVE INTO THE RESIDENTIAL GARAGE, AN HOUR LATER THE GARAGE IS FILLED WITH RAW GAS FUMES. IF I DON'T FILL THE TANK COMPLETELY, IT SEEMS TO BE OKAY. SOMETIMES THE FUMES ENTER THE HOME, AND MY GUESTS CAN SMELL THEM. IT'S QUITE EMBARRASSING WHEN YOU OWN A MB. THE GUESTS LEAVE RIGHT AWAY. *TR

NHTSA ID

10566955

Incident

Sep 15, 2011

Mileage

29,000 mi

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLS500. THE CONTACT STATED THAT FUEL WAS CONTINUOUSLY LEAKING FROM UNDER THE FRONT DRIVER'S SIDE SEAT. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSIS, WHO STATED THAT THE FUEL SENDING UNIT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 72,000. THE VIN WAS UNAVAILABLE.

NHTSA ID

10565824

Incident

Dec 4, 2013

Mileage

72,000 mi

SEVERAL TIMES I HAVE NOTICED A STRONG ODOR OF GASOLINE INSIDE THE CAR AFTER FILLING UP AT THE GAS STATION. I HAVE NOTICED SEVERAL OTHER COMPLAINTS OF THE SAME NATURE. I NOTICED A RECALL # 2008-02001 SEEMS TO ADDRESS THIS MERCEDES-BENZ ISSUE BUT AM NOT SURE IT APPLIES TO THE CLS500. I THINK IT APPLIES TO THE CLS550 AND THE E-TYPE BUT IT SHOULD APPLY TO THE CLS500 SINCE THE UNDERPINNINGS OF THIS CAR IS THE E-TYPE. PLEASE ASSIST AS I WOULD LIKE TO HAVE THIS SAFETY ISSUE ADDRESSED BY MERCEDES-BENZ AND JUDGING FROM THE NUMBER OF COMPLAINTS FEEL THAT MERCEDES-BENZ SHOULD CORRECT THIS APPARENT DEFECT AT NO CHARGE. *TR

NHTSA ID

10563498

Incident

Feb 3, 2014

BOUGHT THIS CAR LESS THAN 30 DAYS AGO AND IT HAS VERY STRONG GAS SMELL EVERY TIME AFTER REFUELING INSIDE AND OUTSIDE THE CAR...I HAVE TO LEAVE MY GARAGE DOOR OPEN BECAUSE OF THE STRONG GAS FUMES IN THE GARAGE THAT ALSO CREEP INTO THE HOUSE!! *TR

NHTSA ID

10557812

Incident

Dec 19, 2013

Mileage

99,000 mi

AFTER FILLING MY CAR, I STARTED SMELLING A GAS ODOR COMING FROM THE DRIVER SIDE BACK SEAT AREA WHEN I REACH HOME ABOUT 2 MILES AWAY FROM THE SERVICE STATION WHERE I FILLED UP. I FIGURE THE SMELL WOULD HAVE GO AWAY BUT EVERYTIME I DRIVE MY CAR I CAN BE ASSURED TO SMELL THAT GAS ODOR IN THE REAR DRIVER SIDE PASSENGER AREA WHICH NOW IS VERY ANNOYING FOR A CAR I PAID SO MUCH MONEY FOR. .... *TR

NHTSA ID

10556905

Incident

Dec 6, 2013

Mileage

78,510 mi

FUEL SENDING UNIT LEAKS AFTER FILLING UP GAS TANK. HOLDS THE RAW GAS IN TOP OF SENDING UNIT. CAUSES INSIDE OF CAR TO FILL UP WITH RAW GAS SMELL, GETS REALLY BAD ON HOT DAYS. SMELLS LIKE RAW GAS IN GARAGE. FUEL SENDING UNIT IS UNDER BACK SEAT BEHIND DRIVER, WHICH COULD BE VERY DANGEROUS. *TR

NHTSA ID

10537274

Incident

Aug 23, 2013

Mileage

105,000 mi

JUST LIKE THE OTHER MERCEDES VEHICLES, THE FUEL PUMPS ARE UNDER THE BACK SEAT. MY DAUGHTER RIDES IN THE BACK. ONE MORNING I WAKE UP AND MY CAR SMELLED AS IF SOMEONE POURED GASOLINE ALL THROUGHOUT THE AUTOMOBILE. I LET THE WINDOWS DOWN AND TOOK MY CAR TO AMERICAN AUTO TECH WHERE I SPENT OVER 700.00. IT TOOK OVER 2MONTHS TO GET THE SMELL OUT OF THE CAR AND I HAD TO REPLACE THE COVER AND LINING THAT SEPARATES THE BACK SEAT CUSHION PORTION FROM THE ENTRANCE OF THE FUEL PUMPS THAT SIT UNDER BOTH BACK SEATS OF THIS CAR. THIS IS NOT ONLY AN ISSUE WITH THE E CLASS BUT MOST MERCEDES MADE THROUGH OUT THAT YEAR. I HAVE A RECEIPT IN WHICH I HAVE PAID AND FEEL THAT MERCEDES NEED TO COMPENSATE ME AND OTHERS FOR THIS DEFECTIVE PART OR FUEL LEAKAGE. IT EVEN LEAKS FROM UNDER THE CAR. THIS IS VERY DANGEROUS TO MY FAMILY AND OTHERS AROUND. *TR

NHTSA ID

10508358

Incident

Jan 1, 2013

THROUGH SOME CHECKING, GASOLINE SEEMS TO BE RUNNING OUT OF THE TOP OF THE GAS TANK WHEN IT IS FULL. IT IS NOT COMING FROM THE FUEL PUMP MODULE SEAL. THIS IS BOTH DANGEROUS AND A POLLUTION AND HEALTH RISK. I JUST BOUGHT THE CAR, SO I DON'T KNOW HOW LONG THE PROBLEM HAS EXISTED. HE TOLD ME THAT IS THE PROBLEM WITH THE FUEL SENDING UNIT IS LEAKING UNDERNEATH OF THE SEATS. HE ALSO TOLD ME THAT HE JUST FIXED TWO CARS WITH THE SAME PROBLEM. THERE IS ALSO A RECALL CAMPAIGN NUMBER (2008-020001) OUT HERE STATING THE SAME ISSUE, BUT MB AT ARLINGTON TOLD ME THAT IT WILL COST ME TO GET IT FIX BETWEEN $400 TO $730 AND MY CAR IS NOT COVER UNDER THIS RECALL. HE PULLED UP THE VIN OF MY CAR AND TOLD ME SORRY THAT YOUR CAR DOESN'T HAVE ANY RECORDS FOR RECALL. SO, I TOOK MY CAR BACK AND ASKED HIM TO PROVIDED ME THE COST ESTIMATE, I CALLED THE EXTENDED WARRANTY AND IT IS NOT COVER UNDER MY BASIC PLANS. SO, I DROVE THE CAR HOME, SMELLING LIKE THE I HAVE BEING SHOWERED BY THE SMELL OF LEAKING FUEL. I ALSO, GAVE A CALL TO MBUSA AND FILE MY COMPLAIN, AND SOMEONE CHECKED MY VIN AND TOLD ME THAT MY CAR DOESN'T COVER UNDER THE RECALL, BUT SHE WILL PUT THE FILE TOGETHER AND WILL BRING IT UP TO THE UPPER MANAGER TO REVIEW THE CASE AND TOLD ME THAT SOMEONE WILL GIVE ME A CALL BACK ON MONDAY SINCE THEY ARE CLOSING ON THE WEEKEND. THE WARRANTY DOESN'T COVER THE SENDING UNITS. BY NOW I HAVE ALL MY RESEARCH HANDY (AND HAVE ALREADY PRICED OUT THE REPLACEMENT OF BOTH UNITS - $2,000) AND SAID "WELL THERE'S BEEN A RECALL FOR THIS EXACT ISSUE ON THIS EXACT CAR, IT'S A MAJOR SAFETY CONCERN THAT'S WHY I WANT TO SHARE MY PROBLEM WITH OTHER PEOPLE ON THE MATTER." I PROVIDED THE RECALL CAMPAIGN NUMBER (2008-020001) AND ADVISE HER PLEASE LET THEM KNOW OF THE PLEDGED TO LOOK INTO IT. WISH ME LUCK :(. *TR

NHTSA ID

10496886

Incident

Feb 8, 2013

Mileage

57,000 mi

I FILLED MY GAS TANK AND DROVE HOME, PARKED IN THE GARAGE OVERNIGHT. THE NEXT MORNING I ENTERED THE GARAGE AND WAS OVERWHELMED BY THE SMELL OF RAW GAS. THE GARAGE WAS CLOSED AND IT CONTAINS A HOT WATER HEATER WHICH COULD HAVE EASILY LIT THE GAS FUMES AND STARTED A FIRE OR EXPLOSION. MY 2 KIDS' BEDROOMS ARE ABOVE THE GARAGE. THROUGH SOME CHECKING, GASOLINE SEEMS TO BE RUNNING OUT OF THE TOP OF THE GAS TANK WHEN IT IS FULL. IT IS NOT COMING FROM THE FUEL PUMP MODULE SEAL. THIS IS BOTH DANGEROUS AND A POLLUTION AND HEALTH RISK. I JUST BOUGHT THE CAR, SO I DON'T KNOW HOW LONG THE PROBLEM HAS EXISTED. *TR

NHTSA ID

10475312

Incident

Sep 3, 2012

Mileage

105,000 mi

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLS 500. THE CONTACT STATED WHILE IN HIS HOME, HE COULD SMELL GASOLINE FUEL LEAKING FROM THE VEHICLE WHILE PARKED IN THE RESIDENTIAL GARAGE. THE CONTACT WAS UNABLE TO LOCATE A FUEL LEAK AND TOOK THE VEHICLE TO THE DEALER FOR INSPECTION. THE DEALER ADVISED THE CONTACT THAT THE FUEL PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 48,000.... UPDATED 08/15/12 *BF UPDATED 08/16/2012 *JS

NHTSA ID

10462549

Incident

Jun 5, 2012

Mileage

48,000 mi

LEAKING FUEL FROM CRACK IN FUEL TANK. SERVICE ADVISOR AT LOCAL MERCEDES BENZ DEALERSHIP STATES CRACK IS FROM SEAL FOUND ON TOP OF TANK. REQUIRED REPLACING OF FUEL TANK AND FUEL PUMP SEALS FUMES FROM FUEL SEEPED INTO VEHICLE AND BACK SEAT CUSHIONS WITH VERY STRONG SMELL OF FUEL. SEATS STILL SMELL LIKE FUEL, THUS CAR WITH SMELL OF FUEL. VERY UNCOMFORTABLE WITH BURNING SENSATION TO NOSE. SERVICE ADVISOR STATES THIS IS SECOND INCIDENT WITH CRACKED FUEL TANK THIS YEAR. *TR

NHTSA ID

10439428

Incident

Dec 1, 2011