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.
Car Problem Reports
Mercedes-Benz SLK230 Bad Spark Plug Wires/Ignition Coils May Cause Misfires and Possible CEL
Mercedes-Benz SLK230 Problem
8 Reports
Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004
Verified
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Visitor, 2003 Mercedes-Benz SLK230, 84,000 mi
As described, MB dealer repairs - parts $740, labor $385 total $1,125.
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