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What does an ACF valve & filter do???

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Wes G, Jul 31, 2007.

  1. Wes G
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    Wes G Member

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    [Jul 31, 2007]
    As above-what does it do & is this a common fault on 3.2`s-as I have now had 2 in 10 months? The Stealers could`nt really explain what it is??? Active Charcoal Filter-I can only assume it filters air in the inlet\breather ??? Any thoughts? The car now also needs 2 oxygen sensors aswell-and I always use V Power which I hoped help to prevent problems like this?...Thanx Wes.:icon_thumright:
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