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Shuts off while driving and doesn't restart - S550 Mercedes-Benz Cars & Trucks

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One of the most common causes would be a faulty crankshaft position sensor. When the sensor malfunctions, it overheats and stops sending a signal to the computer. If the sensor stops sending a signal to the ignition module, it will cause the car to shut off. Replacing the crankshaft position sensor should cure this problem. There are a lot of other possibilities such as a faulty ignition control module. When the car stalls suddenly while driving it is usually due to loss of ignition spark. Clean all the fuses in the main fuse box. Some of the fuses provide power to the ignition system. If you have poor fuse connections it can cause the problem also. If you need more help on how to repair your crankshaft position sensor I would suggest checking out this sites HowTo section http://www.buyautoparts.com/howto/

Posted on Jul 10, 2013

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