Mercedes-Benz GLC63 AMG

This 2021 Mercedes-Benz GLC 63 AMG has experienced repeated and escalating warranty defects involving engine performance, loss of acceleration, air suspension failure, and now inoperative advanced safety systems including blind spot and active brake assist. Despite numerous repair attempts at authorized dealerships, including extensive engine teardown and cylinder head replacement, the manufacturer has been unable to permanently repair the vehicle. The car has been out of service for 145…

The contact owns a 2021 Mercedes-Benz AMG GLC63. The vehicle was taken to the local dealer for routine maintenance, and the contact was informed that there was an issue with the ignition coil. There was a misfire coming from the engine. The dealer determined that the ignition coil needed to be replaced. The vehicle was not repaired. Upon investigation, the contact linked the failure to Technical Service Bulletin: 2021070006. The manufacturer was contacted and referred the contact to the NHTSA…

Engine runs rough and activates a flashing engine light. Sounds like the engine is misfiring. On two occasions the engine stalled,(no power steering, brakes...) luckily not in a dangerous situation. No engine codes were visible to a technician when try to diagnose. Car seemed to run fine again after restart.

The contact owns a 2020 Mercedes-Benz GLC63. The contact stated that while his wife was driving at highway speeds, the vehicle inadvertently decelerated while the accelerator pedal was being depressed. The check engine warning light illuminated, and a message displayed on the instrument panel stated that the “Transmission Needs to Cool, Stop and Pull Over Immediately”. The contact stated that the vehicle had locked in first gear and decelerated to approximately 55 MPH. Additionally, the contact…

The SIM has the potential to become disabled and won’t connect to the mobile network. They have announced the problem but it has been months with no remedy even though it’s stated to be performed over the air. If I get into an accident there is a chance emergency responders will show up late if at all. This risk is there everytime I drive my vehicle

WHEN USING ENGINE START/STOP FUNCTION, OVER THE COURSE OF 3 DAYS AFTER PICKING UP THE CAR, WHEN AT A LIGHT, THE CAR DID NOT START BACK UP.

I PURCHASED THIS CAR IN 08/2018 WITH 900MILES CERTIFIED PRE OWN. I HAVE TAKEN IT TO DEALER 4 SEPARATE OCCASIONS FOR ENGINE LIGHT. EACH TIME THEY HAVE KEPT IT FOR OVER 2 WKS. THIS LAST TIME THE ENGINE LIGHT WENT ON IN MAY 2020. WE WERE ON FREEWAY GOING ABOUT 70MPH WHEN THE ENGINE WENT ON AND THE CAR LOST POWER AND CAME TO ALMOST A COMPLETE STOP IN MIDDLE OF FREEWAY. I HIT MY HEAD ON FRONT WINDSHIELD DUE TO THE IMPACT. THE DEALER STATES IT HAS BEEN REPAIRED BUT SAME PROBLEMS OCCUR ALMOST…

TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ GLC63C4. THE CONTACT STATED THAT THE STEERING WHEEL SHOOK AND VIBRATED. WHEN TURNING THE VEHICLE, IT WOBBLED, MADE A LOUD KNOCKING NOISE, JERKED, AND SKIPPED WHEN THE CONTACT ATTEMPTED TO COMPLETE A TURN. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF THE WOODLANDS (16917 INTERSTATE I45, CONROE, TX 77385, (936) 206-7500), BUT WAS NOT DIAGNOSED. THE DEALER TEST DROVE THE VEHICLE AND WAS ABLE TO RECREATE THE FAILURE. THE DEALER STATED THAT THE VEHICLE WAS…

A FEW WEEKS AFTER I BOUGHT MY VEHICLE THE BRAKES STARTED SQUEAKING. I MENTIONED THIS TO ONE OF THE SERVICE PEOPLE AND SHE SUGGESTED IT MIGHT BE A SMALL STONE. IT CONTINUED TO SQUEAK AND THEN IT STARTED SCREECHING. PEOPLE IN THE PARKING LOT AND AT HOME ASKED ME IF I WAS REALLY DRIVING A MERCEDES-BENZ. THE BRAKES WERE CHANGED EVENTUALLY AND THE SERVICE GENTLEMAN SAID IT WOULDN'T HELP AS IT WOULD START AGAIN. TRUE TO HIS WORD. THEY ARE SCREECHING AGAIN. IT'S EMBARRASSING TO SAY THE LEAST AND IT…