Unknown

- Santa Monica, CA, USA

Code PO52E

- Hayward, CA, USA

check engine code P052E : Positive Crankcase Ventilation Regulator Valve Performance. This is a common problem in all mercedes 2015-2020 and it cost about 2000 to repair. This should be a recall.

- Chipley, FL, USA

My car is throwing the error code P052E. It keeps going on and off.

- Cranberry Twp, PA, USA

engine light on need to replace clogged Pcv value at 48,000 miles. Seems like this part needs a recall

- Grand Rapids, MI, USA

I recently had to repair a part of my engine with the code P052E. It specifically was "The Valve for Crankcase Ventilation. It stated it was malfunctioned and that the actuator is blocked. It could have caused my engine to fail and my car to stop at any moment putting myself and others at risk. There is a large amounts of consumers with the same vehicle that complained about the same issue. It was inspected by the Mercedes Benz dealership. The only warning was that my check engine light was on.

- Bellflower, CA, USA

A very common problem with mercedes. PCV ventilation valve. Fault code P052E

- Westtown, NY, USA

P052E positive crankcase ventilation regulatory valve Part number 274-090-17-29-80

- Cleveland, OH, USA

Code P052E costing me over $2500 to repair. I-??m not the only one dealing with this problem and my car only has 58k miles and it-??s a 2017. Should be recalled considering the part being defective.

- Malden , MA, USA

my 2017 Mercedes C300 experienced what appears to be a very common engine fault with the W205 engine. It involves the "PCV" valve and the engine code fault is P052E. When this fault occurs the engine will stall and sputter. My wife and daughter were in my car last week and it stalled at an intersection which could have resulted in an accident, but luckily the school crossing guards were there to stop traffic and allow her to restart the car and get to the side of the road. The check engine light had previously been on and off for sometime so I had my local Mavis check what the light was on for and they gave me the fault code. I did not think it was anything that serious because the car ran fine. The car was towed today to Mercedes to officially diagnosis the problem

- Lanoka Harbor, NJ, USA

Positive Crankcase Ventilation (PCV) Can cause problem to the engine. Check engine light is on, car have been scanned. This happen one week ago. There-??s no recall for this and happen a lot many Mercedes Benz causing problems on engine and is not on warranty or any other recalls

- San Antonio , TX, USA

I have a mercedes c300 2017 and recently I was driving my car and the check engine light came on all of a sudden so I took it to my local shop to diagnose it they told me it was the PCV valve, so I called mercedes and they-??re telling me that this is not covered and of course my warranty is no longer covered I have about 63k miles on the car. Mercedes is saying they don-??t have a recall for this but I-??ve googled around and multiple people are saying the same issue happened to them around the 55-65k range. It-??s super frustrating that this doesn-??t flag a recall.

- Trumbull, CT, USA

Engine code P052E - PCV REGULATOR VALVE PERFORMANCE. Common faulty Mercedes Benz part integral to the car. Just took in the car to MBSeattle.

- Seattle, WA, USA

In my family we have 2 mercedes benz cars one 2017GLC300 and other 2017 C300 4matic and both of the cars have the same issues. Check engine with code P052E. And after talking to friends and mechanics it appears that this issues to be almost on every mercedes car of this engine since both of the cars that are in my family have the same engine components. I request that it should be recall so mercedes benz will repair those issues under warranty. Thank you

- Kirkland , WA, USA

I purchased my 2017 C300 class Mercedes-Benz ("MB") in May 2021 from a used car dealership in Mobile, AL. At that time it had 36,000 miles. Less than 2 years later, on or about 12/15/22, as I was driving, the MB suddenly and without warning began to vibrate violently and immediately lost power. The car had @54,000 miles on it. I routinely drive interstate to and from work and had just gotten off of the interstate. I was lucky that I was driving at a low speed when this happened; otherwise, a serious accident could have resulted. I took it to the local MB dealership which told me that the car failed a compression test in the #1 cylinder and that the engine would have to be replaced. Subsequent research on the cause of this total engine failure with low mileage revealed that this engine has a chronic piston defect that damages the #1 cylinder, causing it to lose compression, and that MB has known about the defect for many years, an issued an internal bulletin about it. MB has not alerted the public nor instigated a recall. I was not informed by MB at any time that the C300 class engine had a chronic piston defect that would damage the #1 cylinder which would, in turn, cause the engine to lose power and the vehicle to vibrate and shake, creating a dangerous diving condition under all circumstances, but especially if the car was being driven at speed on a federal interstate highway. Despite demands by me and others, MB refuses to responsibly address the issue. The driving public is, and remains, clearly, in great risk of harm due to this defective engine and associated power train issues. It is patently unreasonable for MB to produce and market such a unsafe, dangerous and defective product that poses an unreasonable risk of harm to its customers and others when being used as it was intended. I understand that the NHTSA has opened an investigation on this defect and wish for my voice to be heard on it. Please contact me [XXX] for further details. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION A

- Mobile, AL, USA

Hey good morning. There-??s been a been a system failure. P052E Positive Crankcase Ventilation Regulator Valve Performance. Warning message I got was the engine light showed

- Sharon, CT, USA

My car suddenly turned off at a stop sign. After I restarted it, it turned back on and my engine light turned on. I called the dealership and after inspection I was told that the valve for my crankcase was malfunctioning. The total cost, including both parts and labor are $1775. I have seen many complaints regarding this issue with the same vehicle. It is apparent that a recall should-??ve been issued for this months ago. It is truly a safety issue when the car turns off at a stop sign or a ramp. I could-??ve been hit while my car was stalling on a ramp exiting major highway. I implore you to rectify this issue immediately before someone gets hurt.

- Fort Washington , MD, USA

Crankcase ventilation valve failure.

- Saint Charles, MO, USA

Most M274 engines have P06DA00 fault code internally. Harness for oil pressure regulating solenoid valve is short/open inside the engine oil pan. It can cause excessive oil pressure and premature oil pump failure. As the broken wire is sunken in the engine oil, I worry if it can cause fire. If the oil pump fair during driving prematurely, engine can be stalled. Mercedes-Benz knew the issue but they decided to ignore it.

- Duluth, GA, USA

Crankcase Breather System: Vent Valve Fault code stored for block crankcase breather valve. The fault code is 052E71. A lot of Mercedes cars are reporting it online and no recall has been made. The labor to change this takes around 8-9 hours and the part costs 300. Company is doing nothing about it as a lot of W205 engines are having this issue

- Wilmington , MA, USA