Mercedes-Benz S550 problems and owner complaints

WHEN STEERING WHEEL IS RELEASED EVEN FOR A FEW SECONDS, VEHICLE PULLS HARD TO THE RIGHT AND WILL PUT YOU IN THE DITCH IF YOU ARE NOT PAYING ATTENTION. THE VEHICLE SHOULD TRACK STRAIGHT WHEN THE STEERING WHEEL IS RELEASED.

Owner-reported narrative. 332 miles reported. Look up ODI 10388688 at NHTSA ↗

PURCHASED A CERTIFIED PREOWNED MERCEDES BENZ S5550 4 MATIC. COMPLETE STEERING FAILURE OCCURRED AN HOUR AFTER PURCHASE (AFTER 20 MILES OF DRIVING). THE CAR'S STEERING WHEEL WAS SPINNING FREELY, AND NO CONTROL OVER THE FRONT WHEELS WAS POSSIBLE WHILE IN MOTION. VEHICLE HAD TO BE RECOVERED BY THE DEALER. *TR

Owner-reported narrative. 52,000 miles reported. Look up ODI 10554582 at NHTSA ↗

TL* THE CONTACT OWNS A 2010 MERCEDES BENZ S550. WHILE DRIVING 15 MPH, THE CONTACT STATED THAT THE STEERING WHEEL BECAME DIFFICULT TO TURN AND NEARLY CAUSED A CRASH. THE CONTACT WAS ONLY ABLE TO STEER THE VEHICLE AFTER THE BRAKE PEDAL WAS DEPRESSED. THERE WERE NO WARNING INDICATORS ILLUMINATED AT THE TIME OF THE FAILURE. THE VEHICLE WAS TAKEN TO THE DEALER, BUT DIAGNOSTIC TESTING WAS NOT PERFORMED. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 24,000. ..UPDATED 11/11/14 *BF THE CONSUMER STATED THERE WAS NO WARNING LIGHT…

Owner-reported narrative. 24,000 miles reported. Look up ODI 10615593 at NHTSA ↗

The instrument cluster on my 2011 Mercedes-Benz S550 (W221) is locked by a persistent red “Battery Not Charged” warning message. This message appears even though the charging system is working correctly (normal charging voltage, new battery, and new battery sensor installed). Because the cluster is locked, I can no longer: • View or reset tire pressure (TPMS) • Access the digital speed display • Adjust or enable certain lighting functions, including daytime running lights • Adjust seatbelt settings • Turn the blind spot monitor on or off •…

Owner-reported narrative. Look up ODI 11757779 at NHTSA ↗

I purchased this vehicle in July 2020. I did a through check for recalls, warranty problems and could not identify any with this vehicle. From the get go the check engine light would come on. I checked the codes and they indicated an "electrical fault on bank 1, oxygen sensor 1. I replaced the wiring harness on that sensor as well as the sensor. From then until now the car would code weekly about the same issue. Eventually I started using a catalytic converter cleaner (it cleans off sulfur deposits) in an attempt to solve the issue. It would wo…

Owner-reported narrative. Look up ODI 11610863 at NHTSA ↗

TL* THE CONTACT OWNS A 2010 MERCEDES-BENZ S550. THE CONTACT STATED THAT UPON REFUELING THE VEHICLE, A STRONG FUEL ODOR WAS DETECTED IN THE INTERIOR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GEORGETOWN (7401 S IH-35, GEORGETOWN, TX 78626, [phone removed]) WHERE THE FAILURE WAS DIAGNOSED AS A FUEL LEAK FROM THE FILTER ASSEMBLY UNDER THE REAR SEAT. THE CONTACT ALSO STATED THAT THE DEALER INFORMED HIM THAT THE UNDERCARRIAGE WAS DAMAGED WHICH LEAD TO THE FUEL LEAK. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND A CAS…

Owner-reported narrative. 110,000 miles reported. Look up ODI 11385589 at NHTSA ↗

UPON REFULING MY AUTOMOBILE FULL I COULD SMELL A STRONG ODOR OF GAS FUMES. EARLIER THAT DAY I HAD AN IMPACT OF MY TIRE OVER A CURB. GAS FUMES COULD BE SMELLED NOT SO MUCH ON THE OUTSIDE OF THE AUTO BUT INSIDE WITHOUT ABATEMENT. UPON INSPECTION BY MERCEDES BENZ OF STOCKTON CA IT WAS DETERMINED A FUEL LEAK WAS PRESENT WITH THE CUSHION THAT SITS ON TOP OF THE FUEL SYSTEM WAS SOILED/STURATED UNDER THE REAR PASSENGER SEAT OF THE CAR. PICTURES TAKEN SUGGEST IT HAD BEEN WAS ONGOING POSSIBLELY FOR YEARS. THEY SUGGESTED HEAT CONTRIBUTED TO THE UNIT…

Owner-reported narrative. Look up ODI 11425745 at NHTSA ↗

SHIFTING LEVER IS UP FOR REVERSE, CENTER FOR PARK, DOWN FOR FORWARD. ALL OTHER TRANSMISSIONS YOU PUSH UP FOR PARK. AFTER DRIVING ALL OTHER CARS, EVEN PRIOR MERCEDES IF YOU EXIT THE CAR YOU PUSH THE TRANSMISSION LEVER TO UP FOR PARK EVEN WITH THE ENGINE RUNNING YOU PUSH THE LEVER UP FOR PARK. THIS BECOMES A HABIT, A REFLEXIVE ACTION BUT IF YOU DO THIS IN THIS MERCEDES YOU GO INTO REVERSE. WHAT HAPPENED TO ME IS I STARTED THE CAR IN MY GARAGE AND FORGOT SOMETHING SO I HOPPED OUT WHILE REACHING FOR THE SHIFT LEVER AND PUSHED UP FOR PARK, BUT …

Owner-reported narrative. 67,000 miles reported. Look up ODI 11002352 at NHTSA ↗

PROBLEM 1: CAR SOLD TO ME WITHOUT FULL DISCLOSURE. SILVERSTAR MOTORS IN L.I CITY, NY SOLD ME THE CAR & WITHHELD MATERIAL INFORMATION. THE CAR HAD 4 DAMAGED & DEFECTIVE WHEELS. THIS WAS DISCLOSED TO ME BY ANOTHER DEALER HELMS BROTHERS. TIRES WERE CONSTANTLY LOSING AIR; FRONT END WOULD VIBRATE AT HIGHWAY SPEEDS & WAS CONSTANTLY IN THE SHOP. SILVERSTAR GAVE ME 4 NEW TIRES TO COMPENSATE ME FOR MY TROUBLES & I HAVE ALREADY LOST 2 OF THEM IN A FEW MONTHS. ONE WAS DAMAGED LAST FRIDAY DOING 10 MILES AN HOUR ON ARCHER AVENUE IN QUEENS NY HITTING A POT H…

Owner-reported narrative. 34,000 miles reported. Look up ODI 10965986 at NHTSA ↗