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TT-s 2009 erratic idle

Discussion in 'TT/TT-S/TT-RS Forum' started by trick971, Nov 4, 2013.

  1. trick971
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    trick971 Tricky

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    image.jpg image.jpg

    Problem with the wife's car, erratic idle mainly when it's warm. Had a look and can't find any air leaks.

    But Does anybody know what the round part is in the centre of this photo please?
    If I hold my figure over the knobbly bit at one end (with a pin hole in it) the idle all of a sudden revs higher.
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  2. trick971
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    trick971 Tricky

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    Fixed. Changed the part and hey presto. 60 quid including gasket. It's a pressure regulator of some kind. Just in case any other tt owners suffer This.
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    45bvtc likes this.

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