Rough running motor/lack of power due to failed ignition coil packs/spark plug resistors on Mercedes-Benz S320

Failed ignition coil packs or spark plug resistors can cause a rough running motor or lack of power.

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Average mileage: 169,250 (113,000–225,500)
6 model years affected: 1994, 1995, 1996, 1997, more1998, 1999
9 people reported this problem
3 people shared problem details
slow take off and rough running motor
i changed my coils and spark plugs and wires and engine light still on and car is mis firing
Coil number 6 failed and was replaced - now at 117000, other 2 coils failed also
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