Car Problem Reports

Mercedes-Benz E420 Bad Spark Plug Wires/Ignition Coils May Cause Misfires and Possible CEL

 
Mercedes-Benz E420 Problem
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Model Year Affected: 1997

Average Mileage: 127,750 mi (98,000 mi - 157,500 mi)

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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.

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