What 20 owners told NHTSA about the 2012 Mercedes-benz Sprinter 3500xd Crew Van

THIS SPRINTER IS A WINNEBAGO 170X RV CONVERSION. ON MULTIPLE OCCASIONS SINCE BUYING THE VEHICLE IN 2016 WE HAVE EXPERIENCED A SUDDEN LOSS OF POWER WHILE DRIVING. THE ENGINE REMAINS ON BUT THE TRANSMISSION IS NOT ENGAGED. STOPPING THE VEHICLE AND RESTARTING CLEARS UP THE PROBLEM TEMPORARILY BUT IT WILL CONTINUE TO HAPPEN UNTIL A FAILING REAR SPEED SENSOR IS REPLACED. THE FIRST TIME THIS OCCURRED THE LOCAL MB DEALER REPLACED BOTH REAR SENSORS FREE OF CHARGE EVEN THOUGH THE VEHICLE WAS OUT OF WARRANTY. THE SECOND TIME A WHEEL SENSOR FAILED WE WERE FAR FROM HOME AND HAD TO DELAY OUR TRIP SEVERAL DAYS BEFORE THE CORRECT PART COULD BE INSTALLED. I HAVE ALSO FOUND IN REPAIR RECEIPTS FROM THE PRIOR OWNER THAT A REAR SENSOR WAS REPLACED WHEN THEY OWNED THE VEHICLE. THIS FAILURE MODE - SUDDEN LOSS OF POWER IS EXTREMELY DANGEROUS. IT HAS HAPPENED SEVERAL TIMES ON FREEWAYS INCLUDING ONCE IN THE FAST LANE WHERE PULLING OVER TO THE RIGHT WAS IMPOSSIBLE. WE NOW CARRY A SPARE SET OF REAL WHEEL SPEED SENSORS IF WE FIND OURSELVES IN A LOCATION WHERE MERCEDES BENZ PARTS ARE NOT READILY AVAILABLE.

NHTSA ODI 11382947

THIS IS A SECOND OCCURANCE OF A PROBLEM REPORTED UNDER COMPLAINT NO. 11094122. THIS TIME THE VEHICLE WAS PARKED WHEN THE WARNING LIGHTS CAME ON (CEL, ABS, ESC AND ASC). DEALER DIAGNOSED IT AS A 'MALFUNCTIONNING RPM SENSOR'.

NHTSA ODI 11373656

DROVE ON INTERSTATE EXPRESSWAY AT 60 MPH WHEN SUDDENLY THE ENGINE DISCONNECTED FROM THE TRANSMISSION. CHECK ENGINE LIGHT, ABS WARNING, ESC WARNING AND ASC WARNING LIGHT CAME ON. HAD TO CAREFULLY COAST TO THE ROAD SHOULDER. TURNED OFF ENGINE AND CHECKED FOR OBVIOUS PROBLEMS UNDER THE HOOD, BUT FOUND NOTHING. STARTED ENGINE UP AGAIN AND WAS ABLE TO DRIVE HOME, ALTHOUGH ALL THE WARNING LIGHTS REMAINED ON. MB DEALER DIAGNOSIS SHOWED A MALFUNCTIONING WHEEL SPEED SENSOR AND REPLACED IT. NOT EXACTLY A PLEASANT FEELING WHEN YOU'RE IN EXPRESSWAY TRAFFIC AND SUDDENLY LOOSE ALL PROPULSION!!

NHTSA ODI 11094122