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2001 Mercedes-Benz E55 AMG Question: surging at idle and check engine light on?



kirkpatterson, Lafayette, CA, February 05, 2011, 18:31

As the car reaches operation temp. from a cold start it suddenly starts to surge and run rough at idle.

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  • Answer #1

    Hal... (see my shops), February 05, 2011, 18:35

    Check engine light on? IAC Valve (Idle air control) is a possibility. Volyage should checked and the MAF (Mass Air Meter.) Let me know. Good luck.

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