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2007 Mercedes-Benz S550 complaints

Owner reports filed with NHTSA about this vehicle, newest first and reproduced as filed. They are unverified accounts: one proves nothing, and a pattern across many is the thing worth reading. Back to the full 2007 record →

Power Train › Automatic Transmission
Filed Oct 6, 200950,000 milesNM

TL*THE CONTACT OWNS A 2007 MERCEDES S550. WHILE DRIVING 40 MPH HE HEARD A RATTLING NOISE FROM THE FRONT-END OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER, AND THE MOTOR MOUNTS WERE REPLACED BECAUSE THEY FRACTURED. THE MANUFACTURER WAS NOTIFIED, AND A REPRESENTATIVE STATED THAT THE THERE WAS NO RECALL RELATED TO THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE AND CURRENT MILEAGES WERE 50,000. UPDATED 3/24/10 *CN THE CONSUMER ALSO STATED THE TRANSMISSION WAS REPLACED. UPDATED 06/14/10.*JB

Power Train › Automatic Transmission
Filed Apr 21, 200914,000 milesFL

WITHOUT ANY APPARENT REASON THE ENGINE STALLED, TRANSMISSION APPEAR NOT TO BE FUNCTIONING PROPERLY. CAR RETURN TO FUNCTION NORMALLY AFTER BEING PARKED FOR 2 OR 3 HOURS. TODAY 4/20/2009 CAR APPEAR TO BE EXPERIENCING THE SAME PROBLEM, PLEASE NOTICE THAT DASHBOARD INDICATOR IS ALERTING OF ANY MALFUNCTIONING. *TR

Steering
Filed Jul 9, 2008CA

2007 MERCEDES-BENZ S550V SEAT BELTS KEEP LOCKING AND CAN NOT BE USED. CONSUMER STATES THAT THE VEHICLE ALSO HAVE PROBLEMS WITH THE TRANSMISSION, WINDSHIELD WIPERS, AND RADIO. *NJ THE PASSENGER SEATBELT WOULD LOCK AND COULD NOT BE USED. THE TRANSMISSION WAS STUCK IN PARK, THE WINDSHIELD WIPERS WOULD MOVE ALL THE TIME NO MATTER IF IT WAS SUNNY OR RAINING. THE DOORS WOULD NOT CLOSE PROPERLY. AFTER THE RADIO WAS TURNED OFF, STATIC NOISE WAS HEARD. THE STEERING CONTROL MODULE WAS REPLACED. *JB

Vehicle Speed Control
Filed Dec 20, 200733,000 milesCA

TL*THE CONTACT OWNS A 2007 MERCEDES BENZ S550. WHILE DRIVING 65 MPH, THE VEHICLE LUNGED FORWARD AND BACKWARDS AND THEN STOPPED WITHOUT WARNING. THE ENGINE REMAINED RUNNING; HOWEVER, THE VEHICLE WOULD NOT ACCELERATE. AS OF DECEMBER 20, 2007, THE DEALER HAD NOT INSPECTED THE VEHICLE. THE CURRENT AND FAILURE MILEAGES WERE 32,000. UPDATED 01/17/08 *BF THE CONSUMER STATED IT HAS BEEN DETERMINED BY THE ELECTRONIC TRANSMISSION EXPERT THERE WAS MASSIVE INTERNAL FAILURE, AND CAN NOT DETERMINED WHETHER THERE WAS A DEFECTIVE PART OR COMPUTER FAILURE. UPDATED 01/17/08 *TR

Reading these

NHTSA publishes every complaint as the owner wrote it and investigates only a fraction. Spelling, capitalisation and judgement are the filer’s own. What carries weight is repetition: the same component failing the same way across many filings, and whether the manufacturer eventually opened a recall for it.

Full record for the 2007 Mercedes-Benz S550 → · Every S550 year → · How the figures are calculated →