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2005 Mercedes-Benz C230 Question: Lately my car has been revving itself up and down when I 1st turn it on.

 

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Alex L., Van Nuys, CA, August 30, 2012, 13:47
 Rookie

The RPM goes up and down roughly between 30-40 rpms until I start driving it This happens in the morning and goes away as soon as I begin to drive...Does something need to be replaced?

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  • Answer #1

    benztek September 12, 2012, 05:11
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     Enthusiast

    is the check engine light on , did you pull the air cleaner off ? sounds like a vacuum leak ,i could be wrong ,

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