The contact owns a 2018 Mercedes-Benz GLC300. The contact stated that while driving 65 MPH, the vehicle started to hesitate while depressing the accelerator pedal. The contact stated that the vehicle also started shaking and vibrating with the check engine warning light illuminated. The contact managed to pull the vehicle off the highway and had the vehicle towed to a dealer. The vehicle remained in the dealer's possession for several weeks before the contact was informed that it was discovered that the piston rings were burned and that the cylinder head was warped. The manufacturer was notified of the failure but had not yet receive a response. The vehicle was not repaired and remained in the possession of the dealer. The failure mileage was approximately 9,200.
2018 Mercedes-Benz GLC 300 engine complaints
Page 2 of 2: complaints 11 to 28 of 28, newest first, as owners wrote them.
I m having issue with te code po52e its annoying i fixed and still the same issue
Complete engine failure after 55,000 miles determined that there was a broken piston #1 in the car. This required a complete engine replacement. This is a known problem by Mercedes with the engine model M274 there are numerous reports of the same problem in this engine over several models and years. The engine was 5000 miles out of warranty however this problem seems to occur in alot of vehicles from Mercedes with this engine. There is an active class action lawsuit in California regarding this. Mercedes seems to be ignoring this issue and or not dealing with it to date.
Code P052E PCV crankcase valve ventilation
Vehicle is switching gears automatically from Drive to Neutral in the middle of the road, in the middle of driving, VERY dangerous situation. I cannot put in reverse sometimes it switches back to N. . It always switch his back to neutral. Thankfully no accidents. Don’t know what to do?
Keep having check engine light due to fault code *P052E71 The valve for crankcase ventilation malfunction-the actuator is blocked Many of 2018 Mercedes Benz GLC 300 experienced the same issue.
Vehicle stopped while driving on road. Car show "active brake assist malfunction" on the dashboard, immediately following the car will not accelerate. Shut the car off and restart, then the "check engine light" comes up. The active brake assist does not come up again, but the check engine light states on. I have taken the vehicle 5 times for this issue to the dealer, car is currently at the dealer. Reason of my report, is that I consider this situation extremely dangerous and should be investigated further. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Code P052E---crankcase Vent Solenoid Valve issue---------common issue with this model----under 65,000 miles
positive crank case oil separator valve part # 274-090-56-00-80 failed error code- P052E caused check engine light. Had repaired today through warranty. known issue for all Mercedes Benz. If paying out of pocket expect to spend 2,000.
P052E PCV value problem requiring a $2000 repair. Has happened 2 times in 70k miles.
I was driving when engine light came on.It then went into limp mode.The car would not accelerate we me trying to cross a busy 60mph road.I was almost killed.The code after it was tested p2138 .Pedal position sensor.This fault almost killed me....
Crankcase Breather Intake Line - Part number 274090560080 is malfunctioning and replacement of this requires over $2,000 at the dealership. This is a very common issue among the Mercedes-Benz vehicles that uses this same engine.
P052e crankcase vent malfunction
Check engine light came on with code P052E : Positive Crankcase Ventilation Regulator Valve Performance.
P052E postive crankcase ventilation regulator valve
P052E issues
'the first incident - occurred in august when I stopped at a stop-light. I started driving when the light turned green and the car was accelerating as normal. There were cars behind me accelerating as well as normal. My SUV automatically shifted from drive to neutral by itself as I continue to accelerate to move with the normal flow of traffic. The vehicle automatically slowed down to neutral '2nd incident - the same issue occurred again within two weeks I was driving on the long island expressway at approximately 40 miles per hour in heavy traffic which had commercial trucks. The vehicle automatically shifted from drive to neutral on its own. This nearly caused a pile up on the lie with the car immediately behind me running into the back of my car. '3rd incident - I stopped at a stop sign waiting for the light to turn green in order to make a right turn. I made a right on very busy street and the car started shutting down and decelerating instead of accelerating. I urgently steered the car over to the side of the road and turned it off. I waited for a few minutes and restarted the car and it seem to have been working. '4th incident - on sunday september 18th, the vehicle could not start so I had to call mercedes benz roadside assistance. The engine didn't make any attempt to start. The lights didn't turn on. There was absolutely no response to a keyless or manual start. 'september 29th ' I picked up the SUV and it drove well without any incidents 'october 1st ' the vehicle automatically shifted from drove to neutral after making a right turn on a very busy street which nearly caused an accident with another car hitting me in the rear. This nearly caused a 'pile up' because other cars where urgently slamming their breaks behind me to prevent from hitting the car in front of them. I was dropping my son off to school and he was sitting in the back seat.
Tl* the contact owned a 2018 mercedes-benz glc300. While driving 55 MPH, the rear driver's side tire was punctured. The contact stated that the vehicle was equipped with 18 inch run flat tires. The contact pulled the vehicle over to the side of the road. After waiting approximately 70 minutes on the side of the road, the tire burst into flames. The contact was unable to provide the tire manufacturer, tire line, complete tire size, or dot number. The contact stated that the fire originated in the wheel well of the vehicle and was not necessarily caused by the tire puncture. The fire department was contacted and was able to extinguish the fire. A fire report and a police report were filed. The vehicle was destroyed and towed from the scene. There were no injuries sustained. The dealer and the manufacturer were notified of the failure. The approximate failure mileage was 1,110.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2018 Mercedes-Benz GLC 300?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history