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TDi low idle speed.....

Discussion in 'A4/S4 forum(B5 Chassis)' started by Nessy, May 25, 2012.

  1. Nessy

    Nessy VW + Audi mad

    Oct 18, 2005
    Likes Received:
    The recent very warm weather has high-lighted a niggle with my car; once the engine is fully warmed up the car idles at a noticeably lower speed than if the ambient temperature is a lot cooler.
    On coldish days it doesn't happen, only on warm days........
    Any ideas what may cause this?
    I'm guessing possibly a sensor?
    All gauges etc read OK and car goes like a bomb, just a bit irritating to have car idling far too slowly at traffic lights etc , its the same irrespective of whether the aircon is switched on or off too.......


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