Mercedes-Benz Metris check engine light issue requiring crankcase vent valve assembly replacement costing 2756 on Mercedes-Benz Metris

Some Mercedes-Benz Metris owners report experiencing significant costs associated with check engine light issues, particularly when the crankcase vent valve assembly needs replacement, averaging around $2,756. This problem often results in repair bills of approximately $2,000 or more, with the part itself costing over $900. Owners may find the repair process complex and time-consuming, as it typically involves replacing the entire crankcase vent line assembly to ensure engine reliability, with labor costs potentially exceeding five hours. Fortunately, this part is now covered under a Mercedes-Benz Emission Extended Warranty for 15 years or 150,000 miles, providing some financial relief. The check engine light with the code P052E indicates a specific issue with the engine's PCV system, highlighting the importance of addressing this maintenance task to ensure the vehicle's proper functioning.