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Black flexi pipe by cabin filter?

Shaunos Jun 3, 2013

  1. Shaunos

    Shaunos New Member

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    Changed the cabin filter on my A4 at the weekend found a black flexi pipe (like tiny kopex). It has a oval shape plastic washer glued on the end. What's this pipe for?
     
  2. marky67

    marky67 Member

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    I assume it's a breather pipe for the battery.... as that's where mine is attached.
     
  3. jdp1962

    jdp1962 Grumpy Old Moderator Staff Member Moderator TFSI Owners Group Team V6 Gold Supporter Team Tornado Audi S4 quattro Black Edition s tronic

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    I agrew with Marky. On mine, the pipe comes from a little hole on the side of the battery, and disappears down the side of the cabin filter housing.
     

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