I have a Audi 2006 a4 Quattro and when u set the Cruz the Rpms will go up n down. And now its getting a bit worst so when u start it cold it will do the same untill it warms up.

Carissa Ebnet

Asked by Jan 28, 2014 at 04:41 PM about the 2006 Audi A4 2.0T Quattro

Question type: Maintenance & Repair

Call me with info on what it could be, I was told it might be
a air idle intake motor/ air idle intake valve. But a few codes
pop up. Also when u take the gas cap off it does it. And
some miss fire codes. Jon Ebnet 218-750-3487

1 Answer


sounds to me like you got a bad vacum issue possibly with the emission control system turn your car on and start from the gas door and head around the car clock wise listening for hissing sounds. check under the hood with a sqirt bottle and some soapy water and see if you get any bubbles. if its not a vacum line then its msot likely a dirty filter or a dirty sensor in the air intake

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