2012 Mercedes-benz S-Class Complaints

  • Power Train 03/22/2016

    WHILE DRIVING AT FREEWAY SPEEDS CAR WENT INTO LIMP MODE. ENGINE RMP WERE LIMITED TO 1500RPM AND SPEED DROPPED TO 25MPH.THIS HAPPENED 3 TIMES DURING WEEK OF 3/14/16 AND AGAIN ON 3/22/16. HAD TO MAKE DEFENSIVE EMERGENCY MANEUVER TO STEER THE CAR AWAY FROM THE TRAFFIC LANES AND STOP ON THE SIDE OF THE FREEWAY. WAS ALMOST REAR ENDED BY A SEMI. CAR HAD TO BE TURNED OFF AND RESTARTED TO COME BACK TO NORMAL DRIVING MODE. CAR WAS TAKEN TO MERCEDES DEALER AND IT WAS DIAGNOSED TO BE A BAD TORQUE CONVERTER CAUSING THIS LIMP MODE. DEALER REPAIRED THE CAR BY REPLACING THE TORQUE CONVERTER. THERE WAS NO CHECK ENGINE LIGHT. WHEN THE DEALER HOOKED UP THEIR COMPUTER THERE WERE CODES FOR BAD TORQUE CONVERTER.

  • Vehicle Speed Control, engine 04/01/2015

    TL* THE CONTACT OWNS A 2012 MERCEDES BENZ S350. WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE DECELERATED WITHOUT WARNING. THE CONTACT THEN COASTED OVER TO THE EMERGENCY LANE AND THERE WERE NO WARNING LIGHTS ILLUMINATED. THE VEHICLE RESTARTED; HOWEVER, THE FAILURE RECURRED MULTIPLE TIMES. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN DIAGNOSED THAT THE SIDE CHARGE AIR HOSE INTO THE THROTTLE ACTUATOR WAS TORN AND CAUSED THE LOSS OF HOSE PRESSURE. BOTH THE LEFT AND RIGHT HOSE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 50,000.

  • Unknown Or Other 03/14/2015

    WHEN I CLOSED THE HOOD, A SECTION OF THE RADIATOR GRILL BROKE. *TR

  • Power Train 03/01/2012

    2012 MERCEDES S550. CONSUMER STATES VEHICLE SLID BACKWARDS IN PARKING LOT *TGW THE CONSUMER STATED THE SAFETY ISSUE WAS REGARDING THE VEHICLE BEING PUT IN THE NEUTRAL POSITION AFTER TURNING OFF THE ENGINE. THE CONSUMER STATED THREE WEEKS AGO, HE HAD THE MISFORTUNE OF PARKING HIS VEHICLE IN A PARKING LOT. WITHOUT OPENING THE DOOR, HE TURNED OFF THE ENGINE AND WHEN HE REMOVED HIS FOOT FROM THE BRAKE, THE VEHICLE SLID BACKWARDS AND HIT ANOTHER VEHICLE. BOTH VEHICLES WERE DAMAGED. THE CONSUMER STATED THE MINUTE THE ENGINE IS TURNED OFF, THE VEHICLE SHOULD BE PUT IN THE ELECTRONIC PARKING POSITION, RATHER THAN NEUTRAL.*JB

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