The crankshaft position sensor may fail. Symptoms of this are: The engine will crank—but not start—especially when the engine is warm. The car may start again if it is left to cool off, but it may run roughly or have poor performance. Communicating these specific symptoms to your technician can save diagnostic time.
"Crank no Start" Due to Failed Crankshaft Position Sensor on Mercedes-Benz C350
Average mileage: 88,750 (77,000–100,000)
9 people reported this problem
2008 Mercedes-Benz C350 77,000 mi, Visitor
turns over tries to start and then cuts off