2018 MERCEDES-BENZ GLC 300 Complaints

The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts. If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.

Check engine light came on with code P052E : Positive Crankcase Ventilation Regulator Valve Performance.

Driver's seatbelt is latched and it shows as unlatched with tge seatbelt sensor going off. On the dashboard it also shows the airbag icon

The contact owns a 2018 Mercedes-Benz GLC300. The contact stated while stopped in a parking lot, she raised the automatic liftgate, as she helped her husband load his walker into the rear cargo area of the vehicle, and the tailgate independently closed with force. The contact stated that both her husband and herself were struck on the top of the head by the liftgate. The contact stated that there was a pain but no physical injury was sustained. The contact stated that the failure had become constant and she no longer operated the liftgate. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the liftgate motor needed to be replaced. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 35,000.

While driving and front driver seatbelt fastened, the seat belt unfastened warning will intermittently go on and off tightening the seat belt, as if first starting the car. This has occurred for several weeks now. Per the attached recall notice, this issue has already been identified in 2018 GLC models (my VIN does not show up, however, as part of the recall), and could cause failure of the restraint system. I showed the recall notice to a Mercedes dealer, but they could not replicate the intermittent problem and did not repair it (see attached).

While driving my SUV, I turned a corner and I heard and felt a wire or wires pull and snap inside the steering wheel. I then found that I could not operate any of the controls on the steering wheel and the driver side airbag light came on with a disabled message on the display. I think that it is the clock spring inside of the steering wheel that got caught up and snapped from me turning the wheel.

I hydroplaned when driving in rainy weather and slid across freeway. Apparently break assist activated and automatically applied break. The car spun around and hit concrete barrier and then slid again across the freeway. At that point, a message was on display reading Collision Prevention Assist Plus Inoperative See Owners Manual. My vehicle had power but wouldn’t respond to the gas pedal and would not accelerate. I was unable to move vehicle out way of oncoming traffic. Luckily no one hit me and police arrived to divert traffic away from me. I turned vehicle off and on again but still was not able to move vehicle. I couldn’t even shift gear to neutral. Don’t appear to be much damage to front of car but the way the tires were turned indicate a suspension issue. I am waiting on quote.

TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHT WAS ILLUMINATED AT START-UP. THE CONTACT TOOK THE VEHICLE TO MERCEDES-BENZ OF MYRTLE BEACH (936 JASON BLVD, MYRTLE BEACH, SC 29577) WHERE SHE WAS INFORMED THAT THE AIR BAG CONTROL UNIT PROCESSOR WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE VEHICLE WAS NOT UNDER RECALL. THE FAILURE MILEAGE WAS APPROXIMATELY 57,000.

WHEN I WAS PULLING INTO A PARKING SPOT AT A LOW SPEED, THE CAR ACCELERATED AND LURCHED FORWARD, HITTING A WALL, WHICH DEPLOYED THE AIRBAGS. WHEN THE CAR STARTED TO ACCELERATE, I HIT THE BRAKES BUT THEY DID NOT ENGAGE.

THE SEAT BELT LATCH PLATES (THE PARTS THAT INSERT INTO THE BUCKLES) FOR THE REAR SEAT RETRACTED INTO THE INTERIOR PANELING, PREVENTING THE OCCUPANT FROM BEING ABLE TO USE THE SEAT BELT. (REFER TO SIMILAR RECALL # 18V177000). ALTHOUGH THERE WAS A RECALL FOR THE SAME ISSUE, MY VIN WAS NOT INCLUDED. I WAS ULTIMATELY ABLE TO FIX IT ON MY OWN BY FISHING IT OUT FROM THE INTERIOR PANEL WITH MY FINGERS WHICH WAS DIFFICULT TO DO. IT IS NOT CLEAR HOW IT HAPPENED, BUT WE THINK IT WAS AFTER THE REAR SEAT WAS DOWN AND WHEN IT WAS RETURNED TO IT'S NORMAL POSITION IT PUSHED THE LATCH PLATE INTO THE INTERIOR. WE CONTACTED OUR LOCAL MB DEALERSHIP AND WERE TOLD NOTHING COULD BE DONE SINCE THE VIN WAS NOT ON THE RECALL EVEN THOUGH WE HAD THE SAME EXACT ISSUE AS THE RECALL.