Check Engine Light and Engine Misfire on Mercedes-Benz E55 AMG

Problem Description and Possible Solution

Failed spark plug wires and/or ignition coils can cause intermittent misfires (rough running); the Check Engine Light may also illuminate. Diagnoses of the ignition system will be necessary to determine which components are at fault.

Problem Data
RepairPal Verified
Average mileage: 145,491 (126,000–163,500)
8 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006
12 people reported this problem
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The car runs real rough when I step on the gas in drive. If I shift the car myself it runs better but still mis-fires
Getting a misfire at cylinder 1. Changed spark plugs, ignition coil, and wires at cylinder. Problem fixed.