2012 MERCEDES-BENZ CLS550 Complaints

View complaints related to 2012 MERCEDES-BENZ CLS550. The complaints found here are submitted by actual consumers with first hand experience. There are more than 30 complaints submitted for the 2012 MERCEDES-BENZ CLS550. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2012 MERCEDES-BENZ CLS550
    - Norwell,, MA

    UNKNOWN EVERY TIME THE CAR IS REFUELED THERE IS A VERY STRONG SMELL OF GASOLINE IN AND AROUND THE VEHICLE. IF YOU CHECK CARCOMPLIANTS. COM THE ARE MANY COMPLAINTS ABOUT THIS DEFECT.. IN THE ARTICLE @ CAR COMPLAINTS .COM THE NHSTA CLAIMS IT KNOWS ABOUT THE PROBLEM BUT SINCE MERCEDES BENZ HAS COMPLETELY IGNORED THE THIS DANGEROUS SITUATION AND NEITHER OF YOU HAVE NOT FOLLOWED THRU WITH MERCEDES BENZ'S OFFER TO EXTENDED A WARRANTY TO 15 YEARS FOR ALL THESE CARS , IE E CLASS, CLS550 AND OTHERS, MB DENIES THIS IS A PROPLEM ,THE NHTSA IS PART OF THE ISSUE SINCE THEY HAVE NOT ENFORCED THE PROMISE BY Mercedes BENZ TO RECALL AND EXTEND THIS ALL CURRENT OWNERS OF THESE VEHICLES , since they refuse to acknowledge this issue my next step is a major class action against MB and NHSTA FOR NEGLINCE IN FOLLOWING UP ON MB PROMISES WHICH WERE MADE IN RETURN FOR THE NHSTA NOT ENFORCING A RECALL OF THESE VEHICLES.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - LINCOLN, CA

    CAM LINK SENSOR LEAKS OIL ONTO ENGINE HARNESS, FRYING ALL ELECTRIC COMPONENTS, CAUSING VEHICLE TO STUTTER WHILE OPERATING

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - PARKER, TX

    FUEL LEAK INTO REAR DRIVER SIDE BACK SEAT FROM BELOW. GAS LEAKED INTO PASSENGER CABIN DUE TO A SEAL THAT BROKE FROM GAS TANK. DANGEROUS SMELL AND FIRE HAZARD. LEAK HAPPENS ALL THE TIME, WHEN PARKED AND ESPECIALLY WHEN DRIVING. MBUSA AND DEALERSHIPS NOT ACCEPTING THE DEFECT AND DESIGN FLAW THAT CAUSES GAS TO SPUTTER INTO PASSENGER CABIN WHEN DRIVING.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - BUCKEYE, AZ

    ENGINE STARTED MISFIRING AND WOULD GO INTO LIMP MODE SO I BROUGHT IT TO DEALERSHIP FOR DIAGNOSTIC AND WAS TOLD OIL WAS LEAKING FROM THE CAMSHAFT SENSORS INTO THE ENGINE WIRING HARNESS AND ECU. ALL OF WHICH NEEDED TO BE REPLACED AT A COST OF OVER $6033.00 AND THE CAR HAS ONLY AROUND 50K MILES ON IT. SEVERAL PREVIOUS YEAR MERCEDES FROM 2011 AND EARLIER HAVE A RECALL ON THE CAMSHAFT SENSORS DUE TO OIL LEAKING FROM THEM INTO ENGINE WIRING HARNESS AND ECU HOWEVER MY YEAR CAR WHICH IS 2012 HAS NO RECALL ON THESE PARTS EVEN THOUGH THEY USE THE EXACT SAME CAMSHAFT SENSORS AND HAVE THE SAME PROBLEM AS THE PREVIOUS YEARS WHICH IS OIL LEAKING FROM THEM AND DESTROYING EXPENSIVE PARTS THAT NEED TO BE REPLACED. *TR

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - HUNTSVILLE, AL

    WHEN STARTED AND FOR SOME PERIOD AFTER WARM UP THE ENGINE FUEL INJECTORS RATTLE. THE DEALER MECHANIC CLAIMS THAT THIS IS THE RESULT OF THE SPLIT RAIL SYSTEM INSTALLED ON THE ENGINE. THIS MAKES THE MOTOR APPEAR TO BE KNOCKING AS THE NOISE IS LOUD. I HAVE REPORTED IT SEVERAL TIMES SINCE 2017.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - JACKSONVILLE, FL

    "FUEL LEAKING FROM GAS TANK" AFTER SMELLING A STRONG FUEL SMELL BOTH INSIDE AND OUT SIDE MY VEHICLE I TOOK TO MERCEDES 9/17/18 TO SEE IF THEY KNEW OF THE ISSUE OF IF THERE WAS SOME TYPE OR RECALL ON MY VEHICLE REGARDING A FUEL ISSUE. THE SMELL ALWAYS SEEMED STRONGER AFTER I PUT IN A FULL TANK OF GAS. THEY DID A VISUAL INSPECTION AND TOLD ME THEY SEE FUEL LEAKING FROM MY VEHICLE AND THAT THERE WAS NO FUEL RELATED RECALL. THEY WANTED TO CHARGE ME $185 JUST TO SEE WHAT THE ACTUAL PROBLEM WAS AND DIDN'T REALLY HAVE A CONCERN IF THE VEHICLE WAS SAFE TO DRIVE OR NOT. SO I TOOK MY CAR TO A LOCAL AUTO SHOP TO DO AN OIL CHANGE AND TO LOOK INTO THE FUEL ISSUE. AS I WAS IN THE WAITING AREA WHILE MY VEHICLE WAS BEING LOOKED AT THE SHOP OWNER CAME IN AND ASKED IF HE COULD SAVE MY LIFE? I THEN FOLLOWED HIM TO THE GARAGE BAY WHERE HE SHOWED ME A POOL OF GASOLINE SITTING ON TOP OF THE FUEL TANK UNDERNEATH MY DRIVER SIDE REAR PASSENGER SEAT. MY GAS TANK HAD BEEN LEAKING AND COLLECTING FUEL ON TOP OF THE TANK. THE OVER FLOW OF THE LEAK WAS POURING UNDERNEATH MY CAR AND ONTO THE HOT EXHAUST. THIS HAS APPARENTLY BEEN A KNOW ISSUE AT MERCEDES BUT THEY HAVE DONE NOTHING ABOUT IT. TOTAL DISREGARD FOR SAFETY OR HUMAN LIFE.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - GERMANTOWN, MD

    DRIVING ON THE HIGHWAY WITH MY 6MONTH OLD BABY AND SUDDENLY MY CAR SURGES AND LOSES POWER. THE CHECK ENGINE LIGHT FLASHES AND I MOVE TO THE SIDE OF THE ROAD WITH ALMOST NO ACCELERATION. TURN OFF THE ENGINE, WAIT A WHILE THEN TURN IT BACK ON AND HEAD BACK HOME. THE CEL STAYED ON BUT I STILL HAD ENGINE POWER SO I THOUGHT IT WAS A FLUKE. THIS CAR JUST HAS 60K MILES ON IT AND I TAKE IT TO MERCEDES FOR ALL THE ROUTINE CHECKS. SO THIS BEHAVIOUR WAS OUT OF NOWHERE. I DROVE IT TO MERCEDES AND GOT A DIAGNOSTIC DONE AND I WAS TOLD THE CAMSHAFT POSITION SENSOR HAD LEAKED OIL INTO MY ENGINE HARNESS AND NOW I NEED TO FIX A LAUNDRY LIST OF THINGS AMOUNTING TO $6000. THIS CAME OUT OF NOWHERE AND I QUESTIONED EUROMOTORCARS IN GERMANTOWN MD HOW THIS COULD HAPPEN. HOW CAN A MERCEDES THAT COST SO MUCH AND GOES THROUGH REGULAR MAINTAINABLE JUST BREAK SO SIGNIFICANTLY. ALL I GOT WAS A 'IT HAPPENS'! WELL I THINK NOT. I HAVE DONE SOME RESEARCH AND APPARENTLY THIS IS A WELL KNOWN FLAW WITH MERCEDES VEHICLES. THEY EVEN HAD RECALLS GO THE SAME ISSUE BUT THEY STOP AT THE 2011 MODEL. MY CAR IS 2012, EXHIBITING THE EXACT SAME ISSUE DUE TO THE INFERIOR PARTS USED DURING WHAT I CAN ONLY CLASSIFY AS A TERRIBLE ENGINEERING DECISION. THIS ALMOST CAUSED AN ACCIDENT AND PUT MYSELF AND MY BABY AT RISK. SEVERAL PEOPLE HAVE HAD THIS COMPLAINT ABOUT THE SAME FLAW AND SAME DAMAGE TO THEIR MERCEDES, ON OLDER MODELS. WHY DOES THIS NOT APPLY TO THE 2012 MODEL WHEN IT IS BUILT WITH THE SAME INFERIOR PART AND EXHIBITS THE EXACT SAME PROBLEM. NOW I'M STUCK WITH A $6000 BILL THAT IS OF NO FAULT OF MINE. I WAS NEVER MADE AWARE DURING ANY OF MY MAINTENANCE VISITS THAT THIS SENSOR IS SOMETHING I NEED TO SERVICE OR REPLACE. HAD I KNOWN, THAT COULD HAVE SAVED ME A LOT OF RISK AND AN EXPENSIVE REPAIR. IT APPEARS THIS IS A WELL KNOW ISSUE AND WELL KEPT SECRET WITH MERCEDES DEALERSHIPS.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - PALMS SPRINGS, CA

    THE VERY DAY I BROUGHT MY CAR HOME FROM A USED CAR PURCHASE, THE MOMENT I PULLED IN MY DRIVEWAY TO PARK, THE MESSAGE CENTER SAID, " SOS SERVICE NOT ACTIVATED" IN A WARNING IN THE CENTER CLUSTER. IT WOULDN'T GO AWAY AND I DIDN'T KNOW WHAT TO DO, SO I PUSHED THE SOS BUTTON AND MB ASKED ME, " WHAT IS YOUR EMERGENCY ?" I APPOLOGIZED AND EXPLAINED THAT I HAD RECEIVED A WARNING MESSAGE ON MY DASH. THEY ENDED THE CALL AND I TURNED OFF THE CAR. I RESTARTED THE CAR AND THE WARNING WENT AWAY. THIS WAS ON FEB 1, 2018 AT 4:38 P.M.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - HOUSTON, TX

    DRIVE SHIFT CAME APART WHILE I WAS DRIVING AND BROKE THE FRONT AXLE DIFFERENTIAL ON THE HIGHWAY

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ CLS550
    - NORTH PLAINFEILD, NJ

    TL* THE CONTACT OWNS A 2014 MERCEDES BENZ CLS-550 (N/A). THE CONTACT STATED THAT OVER A ONE-MONTH PERIOD, ALL FOUR FACTORY TIRES FAILED AND NEEDED TO BE REPLACED BECAUSE TWO OF THE FOUR TIRES BLEW OUT. THE VEHICLE WAS TOWED THREE TIMES TO THE DEALER. THE DEALER STATED THAT THE TIRES WERE LOW PROFILE SO THAT IT WOULD PROPERLY FIT IN THE WHEEL WELL BECAUSE OF POOR DESIGN. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 13,000 TO 14,000. THE VIN WAS NOT AVAILABLE.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE