Unknown

- Bronx, NY, USA

PCV valve failure po52E error

- Montgomery, AL, USA

Code P052E

- Eagan, MN, USA

Pcv valve malfunction causing the 0sensor to short. It-??s also spitting oil into my CAT.. Mercedes has the part on back order and no one can seem to get it but everyone is having the same issue.

- Piedmont, OK, USA

Check engine light on with PO52E error

- Medford, MA, USA

Crank case vent valve assembly

- Morton Grove, IL, USA

My 2015 Mercedes Benz vehicle is rarely driven as I took public transportation to work and has ~55000 miles. However, the engine has started throwing error code P052E verified by an independent dealer - crankcase ventilation valve failure. It means the engine could shut off amid driving and I did research and it seems like a very common issue that Mercedes Benz car owner encounter and feels like a severe car defect.

- San Francisco, CA, USA

I keep getting the P052E PCV replacement valve issue. I see online that this has impacted multiple Mercedes C class but no recalls have been issued for this.

- Yakima, WA, USA

Was driving on the highway, car was running for about 7-10 min from the start, and when took off from exit, car started to shake and when pulled off to the side of the road, the car won-??t start anymore, dealership said that engine failed,

- Pasco , WA, USA

My car is registering code P052E71. The diagnosis says the valve for crankcase ventilation has a malfunction. The actuator is blocked. This is a common problem for this car with research. Some people have had to replace this part multiple times for their Mercedes which is a part that shouldn't fail. Nothing has been done such as a recall on this vehicle. The part and labor to repair this issue costs $1000+ dollars. Something should be done to help consumers. I'm doing my part to report this hoping something will be done.

- Jefferson, GA, USA

Emissions Failure P052E - Positive Crankcase Ventilation Regulator Valve Performance. Vehicle has been inspected. Warning lamp appeared for my engine recently. Cause by faulty plastic valves that requires a significant costly repair - around $3,000 USD

- San Diego, CA, USA

Check engine light- code read Valve For Crankcase Ventilation Has A Malfunction. After googling this, it appears that many Mercedes owners are having this issue and comes back again after repair. This should be recalled by Mercedes.

- Charlotte , NC, USA

check engine light

- Township Of Washington, NJ, USA

My check engine light came on recently on my 2015 C300 4matic. Car has 66500 miles on it. The code P052E71 was diagnosed - The valve for the crankcase ventilation has a malfunction. The actuator was blocked. This problems seems to be occurring to a lot of similar cars from Mercedes and some of them have reported that this issue keeps coming back. The dealership and other auto body shops say it's going to cost around $1500-$2000, considering how it's a tedious job to do and involves multiple hours of labor. The dealer won't repair it as part of warranty. This definitely seems to be an engine issue with the car and has nothing to do with how we drive. Cars not older than a couple years are starting to see this issue. There needs to be a recall for this and have Mercedes does something about it. Why are the consumers having to spend money to have the same repairs done for a bad design, parts and engine being provided by Mercedes.

- Aldie, VA, USA

The valve for crankcase ventilation has a malfunction. The actuator is blocked. Seems like its a common problem for all mercedes C300 ~2015 models. The part should be recalled.

- Mountain View , CA, USA

After getting gas my check engine came on steady. Stayed on until cleared. After getting gas a 2nd time check engine light came on again, stayed on, but went out. Then after getting gas a 3rd time, check engine light came on again. Checked by a local Mercedes shop, code showed intake line oil separator bad. Owned this car for 7 years, never had an issue like this. 50,516 miles currently. Quote for repair is high, over $1000 dollars. All episodes of check engine light have occurred in a 4 week time frame.

- Latrobe, PA, USA

P052E PCV value problem Google search results show this is a very common problem, and despite being a component of the vehicle emissions system, Mercedes is refusing to repair under the emissions warranty.

- Alpine, UT, USA

2015 MB C300 Check engine light came on, appointment scheduled to check issue before it went to the mechanic had a safety issue when accelerating to turn in a seven lane busy intersection the car lost acceleration and missed, running rough for a few seconds then recovered in time for me to get out of the way of the 45-50 mph oncoming traffic. Issue is P052E positive crank case ventilation valve which is going to cost $2200 to fix. Car has just over 60k miles on it and this is a known issue for YEARS on multiple MB turbocharged 4cl. I could have been t-boned if the acceleration hadn-??t recovered. Does someone have to get killed before MB recalls the vehicles? 60k miles is not a lot of mileage for a car 8 years old that has had all its scheduled maintenance.

- Corpus Christi, TX, USA

Esp controller non functional

- Croton On Hudson, NY, USA

My crankcase vent valve needs to be replaced also EBD traction abs module which alone cost over 1500 for part needs to be replaced

- Croton On Hudson, NY, USA