Table 1 shows two common engine and engine cooling related problems of the 2019 Mercedes Benz Metris.
| Problem Category | Number of Problems |
|---|---|
| Crankcase (pcv) problems | |
| Engine And Engine Cooling problems |
A check engine light on a mercedes-benz Metris, accompanied by a p052e code, often indicates a problem with the positive crankcase ventilation (pcv) system, specifically the pcv regulator valve or its associated components. This code signals that the powertrain control module (pcm) has detected an issue with the crankcase pressure, suggesting a malfunction in the pcv system's ability to regulate pressure.
My 2019 mercedes-benz Metris, with approximately 78,000 miles, developed a check-engine light and diagnostic code p052e/p052e71 for a failure involving the positive crankcase ventilation/crankcase ventilation regulator system. I was advised that the repair will cost approximately $3,000 because the failed ventilation component is part of a larger assembly. I am concerned because mercedes-benz has acknowledged this same p052e71 crankcase ventilation failure on other mercedes-benz models equipped with the m274 engine and has provided extended warranty coverage on certain vehicles. My Metris also uses the m274 engine, but mercedes-benz has excluded the Metris from that extended coverage. I have also learned that other Metris owners have reported the same p052e/p052e71 failure. I am filing this complaint because I believe this may be a recurring defect in the crankcase ventilation system on m274-equipped mercedes-benz Metris vehicles and should be investigated to determine whether these vans should have received the same repair coverage or corrective action as other affected mercedes-benz vehicles.