2016 Mercedes-Benz S550 Problems

My vehicle is listed in this Mercedes recall campaign bulletin, and it is also experiencing the safety issue that is discussed in this recall campaign bulletin: Campaign No.2021070010, August 2021 Revision A 09/03/2021 When I contact Mercedes to have the issue addressed, they stated my Vin is not a part of this recall campaign, and to contact you about it.

I WOKE UP ONE MORNING AND WAS ASTOUNDED TO FIND A LONG DIAGONAL CRACK ACROSS THE PANORAMIC SUNROOF OF MY 2016 MERCEDES-BENZ S550. I CONTACTED MERCEDES AND WAS TOLD TO BRING THE CAR TO A DEALERSHIP FOR EVALUATION TO DETERMINE WHETHER THIS WAS DUE TO OUTSIDE INFLUENCE OR A MANUFACTURER'S DEFECT. THEY DETERMINED THAT IT WAS A "STRESS CRACK" AND STUCK ME WITH A BILL FOR $13,000. THIS IS A 2016 MODEL CAR WITH 50K MILES ON IT WITH A SUNROOF THAT SPONTANEOUSLY CRACKED. WHAT IF MY WIFE AND YOUNG CHILDREN WERE IN THE CAR WHEN IT STARTED TO CRACK? THE RESPONSE FROM MERCEDES IS UNACCEPTABLE. THIS IS A VERY DANGEROUS MANUFACTURER'S DEFECT WHICH MUST BE ADDRESSED BEFORE SOMEONE GETS SERIOUSLY HURT.

Rear left seat belt is stuck and won’t retract. Seat has not been used much. Vehicle is a 2016 with 65,000 miles.

The car's front passenger passenger seat buckle fails to properly secure the seat belt. After inserting the seat belt it fails to latch into the buckle. The Mercedes dealer has examined the seat buckle and determined that it failed. They are recommending a replacement.

Started car in parking lot and warming light read zero air in right front tire. No prior warning. Checking tire for any road hazard - nails or other potential punctures but none were present but the tire had a hole just below the wheel that had blown out. The tire is a Pirelli P Zero 245/40R20 Run Flat. Was able to drive it to Tire Discount the next day to replace the tire. Manager checked tire and could not find any other issue with the tire. They were supposed to hold the tire but it was removed by the recycling company. I have pictures and the managers examination. Our safety any others if the split in the tire would have blown at speed in traffic. Called and emailed Pirelli and they could care less about a safety issue. Just told me it was out of warranty because it was over 1 year old. The tire has approximately 5,000 miles on it.

Staggered tires on this car Goodyear Eagle F1 Asymetric 2 Run flats. Front size - 245/40 R 20/99y, Rear -275/35 R 20/102 These tires cannot take the load of the car . I purchased the vehicle & the same tire (front driver side) has blown & ripped open over a moderate pothole, Aug 2020 & in Sep, 2022. In my opinion these tires are massive liability and a huge safety hazard. These are Summer runflat tires & also there no Allseason ROF's

Failure of LED instrument cluster. 2016 S550. No display. In October 2020 I had total system failure in my garage. Battery discharged down to +/- 5V. The car was still under warranty. Tech arrived and tried to recharge battery. He did not have the proper equipment, (his statement). I had to use two of my chargers in parallel plus his to get car back to life. He disconnected the battery from car to get there. Battery came back to life. Everything seemed to work. Started to drive car and experienced random IC failure. There were times when cluster worked fine and suddenly it went blank (black). Contacted dealer and was told that I should keep on driving it would fix itself. Dealer had the car for a week and could find no fault. And it fixed itself. Great!!! Note, at this time the car was still under Warranty. Forward to June 2022. I replaced Batteries. As in 2020 display died (black) randomly. This time it was more often black than alive, it does not want to recover. Note, every time the display dies I loose all indications, no speed indicator plus anything else. No steering wheel controls. No sound of directional indicator (blinker). Dangerous to drive. It can happen at any time. It can work when I drive off and stop!!! Note, this I find very interesting, there is no failure code anywhere, not in the diagnostic Xentry either. That for my opinion is a design problem. Dealer uploaded some code into cluster. Told me it is working. Came to pick up car, SA brought me the car and told me IC failed again. Dealer then advised me that I would have to ~$3000 to get it fixed or contact MBUSA and request for them to pay. Consider that the whole thing started when car was under warranty. Contacted MBUSA on 10/19/22 reporting the details. Was promised a response within 24/48 Hrs. No response. Followed up several times, it is on there computer. Today's date is 11/8/22. They are ignoring me. For my opinion this is a design fault. No failure code! This is it.

The contact owns a 2016 Mercedes-Benz S550. The contact stated that while driving at an undisclosed speed, the power steering failure warning light illuminated. The contact stated that the steering wheel seized. The contact stated that he was lucky to have been driving the vehicle in front of the residence and not on the highway. In addition, the contact stated that it was very difficult trying to move the vehicle from one parking space to another in front of the residence. The vehicle was towed to the dealer where it was diagnosed with a failed electric power steering module. The contact was informed that the electric power steering module needed to be replaced. The vehicle was not repaired. The contact was informed about NHTSA Campaign Number: 16V899000 (Steering); however, the VIN was not included in the recall. The manufacturer was made aware of the failure but provided no assistance. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 56,000.

I AM REPLACING THE WINDSHIELD FOR THE 3RD TIME, SMALL STONES CREATING HUGE CRACKS, SEEMS VERY UNUSUAL FOR IT TO HAPPEN SO OFTEN.

Catalytic converters are factory defective My vehicle has less than 80K miles and used as pleasure vehicle. The problem has been inspected and confirmed by a reputable independent service provider. Warning lights came on and upon inspection it was determined that 3 catalytic converters are defective. My spouse also complains about a bad odor when vehicle is on but not running.