2001 Mercedes-Benz E55 AMG Q&A

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

As the car reaches operation temp. from a cold start it suddenly starts to surge and run rough at idle. -
Answer 1
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. -