general problems of the 2018 Mercedes Benz C300

C300 crankcase ventilation valve code p052e.

Sun roof not opening. Mechanic notified me that this is a known issue, but no recall at this time.

There are water intrusion that happened to other model of mercedes, my car have the same problem, when I bring it to the mercedes dealer, they found a lot of water inside the trunk, but they insisted that I had accident, but there no accident that I know of.

The check engine light came on with the error code p052e - pcv valve failure while the car is only driven for less than 38k miles. I am worried about the quality of the car/engine.

My C300 2018 only has 50k and suddenly the engine light is on, when I check it shows that I need the positive crankcase ventilation valve replaced. It cost $2300. As I know a lot of people who own mercedes have the same problem. Three mechanics claim it on almost all c, cla, and gla models. Please make mercedes recall it finally.

Rear camera doesn’t work.

The fault code p052e71 is logged in the fault memory of the engine control unit. Cause: possible cause: the component or the electrical actuation at the partial load crankcase ventilation valve (y58/2) may be faulty or might not activate initially.

This is 2018 Mercedes Benz - C300 and it seems across this model line up and models from that year it looks like headliner particularly fabric starts to separate from the pillars in the rear. Across google there is bunch of C300 with the same issue in the same spot starting. The car is only 5 years old and if it would be any other brand I would not be to upset about it. But this is mercedes and they pride themselves of being a " luxury " vehicle where their standards should be much higher. Needles to say we contacted and went to one of the mercedes dealership that we got charged $226 for the inspection and mercedes did not honored to replace the defect nor mbusa - did not helped either. This is the problem across the model . Be aware and take this into consideration when thinking of purchasing this particular model year C300.

I have a 2018 c class. Purchased it with 32k mikes 12/21. April 2022 I started experiencing issues. When I put my car in drive/reverse the gears shift it’s self back to neutral. When I’m stopped at a light it will take me out of drive and shift it’s self in neutral. I’ve taken my car to the mercedes dealer for a diagnostics paid out of pocket and they were unable to find the issue. This is a major safety concern and I would like to be contacted as it is unsafe to drive and no one seems to be able to locate the issue so it can be repaired.

Engine light is on recently on my 2018 C300. Car has 36000 miles on it. It is diagnosed as the valve for the crankcase ventilation. The actuator was blocked.

The sunroof on the vehicle jams and either stays partially open or won’t close in the rear completely. I finally got it to close but it will not open again. I know multiple mercedes owners who have this issue with the sunroof and if the sunroof will continue to not lock properly this could be a hazard on the highway if the brackets were to break and the glass slides off.

To whom it may concern, I bought this certified preowned Mercedes Benz, and the recall is open. I have taken the car to the dealership, they deny me from service because its an over the air recall. The Mercedes Benz website clearly states on their letter for consumer that the remedy for this recall can be taken care at the dealership free of charge or an over the air update. Its July and I got the car back in February.

Mercedes-benz hasn't updated the recall on my vehicle.

According to the dealership, if the car is not started every 3 days, it will shut itself down. The car was towed 6 times, I'm a business woman, my coworkers, friends drives Mercedes Benz, and no one have heard of any such issues. Any cheaper cars, after 2 weeks at the airport, the car starts. Something is wrong with the car, something is draining the car battery if not started every 3/ 4 days. They are taking advantage to the fact, that I'm a female and older. They need to replace the car, fix, or junk their car. Someone needs to take responsibility for the repair of the car.

The sunroof spontaneously exploded out of no where. Sounded like a shotgun blast.

Tl- the contact owns a 2018 mb C300. The contact stated that while operating the vehicle the odor of burnt crayon was present inside the vehicle causing a breathing problem for the occupants. The vehicle was taken to the local dealer golden bridge Mercedes Benz(rt. 138 golden bridge NY) but the cause of the failure was not determined. The manufacturer was notified of the failure. The failure mileage was 14,000. Jft.