Mercedes-Benz S55 AMG Problems

"Crank no Start" Due to Failed Crankshaft Position Sensor on Mercedes-Benz S55 AMG

Problem Description and Possible Solution

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.

(15 people reported this problem)

Mercedes-Benz S55 AMG Vehicles With This Problem

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Average mileage: 92,052 (60,139–117,000)
6 model years affected: 2001, 2002, 2003, 2004, more2005, 2006
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Viewing 1-6 of 6 comments
Car wont start. Shuts down when idoling. I believe its the crankshaft position sensor from what I have researched.
Car would crank but not start. Leaving it for a while (15-20 minutes) and restarting the car would result in a start but the "Check Engine" light would come on. The problem comes and goes and the Check Engine light turns off on its own after a while. Going to change crankshaft position sensor.
The engine would shut off when near idle. Sometime it would restart and sometime it wouldn't. Shop recommended replacing the crank shaft position sensor. Since that repair was completed the problem has not happened again.