general problems of the 2016 Mercedes Benz C300 - part 2

Engine light on smells gas constantly tried to change oil that did not work light came back on.

Gas smell inside the cabin. Check engine light on . Took to dealer, stated p052e code came up. Positive crankcase ventilation valve went bad. The dealer says it is a pretty common problem for this vehicle and engine. Quote came back close to $2900 for parts and labor.

Crankcase ventilation valve malfunction at under 50k. Check engine light is on and I took it into the shop after gas fumes were coming into the car through the ventilation system. I was informed that has been an ongoing issue with mercedes and I was referred to fill out this document to try and kickstart a recall process. This is a problem that is very costly, and seemingly is happening to most recent models at around the 50k mark. Beyond that is is also a safety hazard as it is causing gas fumes to enter the cabin of the vehicle.

My vehicle (2016 c-class 300) has a strong gas smell when the vehicle is cold and idling. Seems like it's common problem in w205 C300 cars. . Read more...

Code p052e on 71000 miles. The crankcase vent valve replacement.

A fuel smell can be detected at idle inside the vehicle and around the engine area. A recall for some VIN's of this model in this year was enacted but not this particular model. No visible fuel moisture can be detected. A repair facility stated it might be a faulty clamp on the return fuel line. The recall was for dirt on manufacturing between the fuel injectors/fuel rail. This is a safety / emissions problem that hopefully does not lead into a fire. No warning lights are present. This started about 2 months ago.

2016 mb C300 41000 miles. Check engine light went on. Autozone code reader said p052e positive crankcase ventilationregulation value performance.

The contact owns a 2016 mercedes-benz C300w4. The contact stated he noticed an abnormal fume odor going through the air vents of the vehicle. The contact self-diagnosed the vehicle as having a fuel leak from the fuel pump. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 83,000.

(p052e) positive crankcase ventilation regularly valve.

I bought the car with 51k miles . Engine failed at 71k miles , due to piston #1 cracking . Almost caused me to get rear ended on a busy street . I went to the dealership and they charged me $10250 to replace the engine with a remanned long block and they offered a 2 year warranty. 9 months, only 19k miles on “new motor” the “new” engine fails again … same reason piston # 1 cracked failed suddenly on the highway and I had to push the car to safety to the emergency lane while cars where coming. . I went back to dealer demanding a replacement and told them this is a common occurrence and they refused to help me . I called corporate. They refused to help me saying I would have to purchase an engine for the second time out of pocket when it only lasted 9 months. This is a big fault in the m274 engine … it’s also a safety hazard that can cause serious injury, fire , or even a deadly accident. I read that it’s a common issue with these engines.

Check engine light code p052e.

My engine failed at 82k odometer miles . Replaced it with a new engine for $10065 . And they said it was fixed and working normal , 2nd engine failed at 111000 miles . And has warranty. They refuse to fix it for a 3rd time . . . . . . This is a common problem with m274 engines. Please help us m274 engine owners. . . . Its a very widespread known problem. . .

Cylinder 1 misfire initially, after taking it to an independent shop it was a piston 1 failure and required the small block to be replaced at 80,000 miles with a cost of $7000.

Crank case to be replaced.

The crank case ventilation valve is bad. This part should be easily changed but the dealer wants over $3000. Happened at 62,000 miles.

Po52e code showed was the code pulled on my 2016 mercedes c 300 4 matic . My car had 73000 miles on when I bought it and that code was pulled when I bought it . At 73000 miles my car shouldn’t have this problem .

Check engine light came in so I took it to a local auto shop. They ran the diagnostics and the code that appeared was p052e(positive crankcase ventilation regulation valve performance).

While driving the check engine light came on. The inside of the car started to smell like gas. A diagnostic check was performed at the mercedes dealership and it was determined that there were 2 faults: low boost signal & me control unit this was due to oil leaking from the crankcase vent line through the engine wiring harness and into the me (engine module).

The contact owns a 2016 mercedes-benz C300. The contact stated that after turning off the vehicle and locking the doors; after a while the vehicle would independently unlock the doors and then start up without driver input. The vehicle was taken to the dealer however, the mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 43,000.

P052e emissions code.

Failure in the performance of the crankcase ventilation regulator valve, research online indicates this is a very common issue especially in w205s. Mercedes has omitted this from their gasoline powered, emissions control warranty, but is listed under the blutech/ diesel warranty. The car will fail the emissions test, and mercedes models have a recurring problem with this part which is charged out of pocket once vehicle warranty is up.

Check engine light and error code p052e - positive crankcase ventilation regulator valve performance. Within a year of having the same error code repaired using warranty, I'm again getting the same error code. This is a very expensive repair costing upwards of $2000 as per dealer and I'm having to do this repair again. This should be some kind of manufacturing defect and needs to be recalled.

- crank case vent valve malfunctioned, it was available for inspection upon request with fee - it made oil burning smell - the problem has been confirmed by a dealer and replaced with an expensive fee - engine check light was on.

The vehicle lost power on the freeway, coasted the off-ramp, and came to a stop, the dealership after describing the issue said that it sounded like a bad piston. Said they have had a couple come in with the same problem. Their diagnosis was a bad piston a day later. The mileage is less than 50,000 miles and the car was driven daily to work 4 miles each way. There were no warnings or symptoms of failure prior to happening. The warranty on the vehicle has expired on 7/1/2021.

Around the 58,000 mile mark my check engine light on my 2016 mercedes C300 4matic came on . I checked the gas cap, as that can set off the check engine light, and the check engine light went off the next day. 3 days later the check engine light comes on again, so I repeated the steps of taking the gas cap off and putting back on. The light did not go off the next day. 5 days later the light goes off again. This happened several times over a span of 2-3 weeks. I then take my car to be checked with an obd-ii scanner. It read off every time the check engine light had been on, which was several times. The error code the scanner displayed was "p052e" and a description of "positive crankcase ventilation regulator valve performance". It was the same code multiple times. At this point I did a little research to see if this was something I could repair. While researching the issue, I found that case after case of the very same issue was being reported by owners of cars like mine. I then came across a post that said they had reported the issue to NHTSA and was told that it was such a widespread issue that if "a few more cars are reported to have this issue then a recall would potentially be issued because of the amount of cars that are having the exact same issue at very similar mileages, and it is a very expensive repair. I just feel that this is too common of a problem by the same cars, at the same mileages from the same manufacturer.

P052e positive crankcase ventilation.

2016 mb 300 c, awd at 87000 miles started giving gas fuel smell when parked in our garage after driving. I took to a local foreign car repair facility and they found a fuel leak at the fuel injector pump. The mechanic changed the fuel injector pump (bosch) at a total cost of $745. 31. Since the change in the pump, the smell has stopped and I feel safe. Who is responsible to reimburse this cost to me?.

Tl the contact owns a 2016 mercedes-benz C300. The contact stated that the vehicle produced an abnormal mold odor, which distracted the contact while driving. The vehicle was taken to mercedes-benz of mckinney (2080 n central expy, mckinney, TX 75069, (844) 302-4009) where it was diagnosed that an air conditioning flush was needed. The vehicle was repaired, but the odor returned the following day. The manufacturer was not made aware of the failure. The failure mileage was 16,000. The VIN was unknown.

Fuel smell in cabin - fuel leak in engine compartment. From dealer invoice: found fuel line leaking from rubber line that comes from bell housing fuel line connector to high pressure fuel pump on engine head. . R and r battery ground. . R and r belly panels. . Depressurize fuel system. . Replaced rubber fuel line that comes from bell housing fuel line connector to high pressure fuel pump on engine head. . Cleaned away contrast spray and test drove again,, problem is resolved.

The contact owns a 2016 mercedes-benz C300. While traveling various speeds, the engine siezed and the vehicle entered into limp home mode. The contact stated that all the warning indicators illuminated. The vehicle was taken to mercedes-benz of tysons corner (8545 leesburg pike, vienna, va 22182), but they were unable to replicate the failure. The manufacturer was notified of the failure. The failure mileage was approximately 29,000.

The contact owned a 2016 mercedes-benz C300. While driving 15 mph, a fire erupted from the battery of the vehicle. The contact extinguished the fire and stated that water entered into the engine, which caused the vehicle to hydrolock. The vehicle was towed to the dealer and deemed destroyed. There were no injuries and a police report was not filed. The manufacturer was made aware of the fire. The failure mileage was 18,500.

C300 anti collision sensor malfunction light displayed and loss engine power for several seconds. The car was traveling aprox 20 mph at the time on city street. Then power resumed, the warning light went out. Mercedes-benz of temecula, CA could not find a problem. Workorder 229423, 9/13/16.

My car broke down while driving on the freeway, with only 58,000 miles the piston broke in cylinder 1 causing my car to loose power can cause an accident due to breaking down on freeway problem has been confirmed by a certified mechanic shop check engine light started flashing the moment the engine failed.