Mercedes-Benz Engine Performance Problems Due to Crankshaft Position Sensor Failure

Problem: The Mercedes engines may develop a warm-up stall and/or no-start condition due to a failed crankshaft position sensor. Typically, a cold vehicle starts without issue, then runs rough or stalls and won't start as it warms up. The check engine light will also come on. Allow the vehicle to cool, and it will start.

Solution: diagnosis to confirm the problem and crankshaft position sensor replacement.