2001 Mercedes Benz C320 • 6 cylinder 2WD Automatic • 51,000 miles

The Crankshaft Position Sensor (CPS) was replaced by a service provider - On the day I received the car back the engine fault light came on while driving and the car started misfiring. Returned to service provider diagnostics showed misfire on cylinders 2, 4, 5, 6. The system was cleared and reset and the CPS reset by driving at engine speed of 2200rpm in 3rd gear for 45sec. Problem appeared to have been resolved. But 3 days later engine fault light came on again while driving and car started misfiring once again. This problem only manifested itself after replacement of the CPS unit. Can this problem be caused by the CPS unit? Please advise
May 8, 2011.

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