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water in footwell, part 2

deejames Jan 13, 2014

  1. deejames

    deejames Member

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    following on from my other thread regarding windows opening and wet foot wells i`m trying to trace the source of a leak, does anyone know if there is supposed to be a cover across the back of the engine bay were the battery is? The car is a 1998 A4 Avant 1.8 photo (1).jpg
     
  2. Sulli79

    Sulli79 Active Member

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    Not on cars before 1999, looks ok, do you have any standing water under the battery?
     
  3. Sulli79

    Sulli79 Active Member

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    Also have you checked where the central locking pump is for water?
     
  4. If you have water in the passenger side footwell it will probably be from the joint on the rear washer pipe.
    Take the kick plate off at the bottom, below the glove box, you'll need to pull the door seal away a bit. You'll see the pipe which should just push back together.
    If you're not getting water from the rear washer jet that's most likely the cause.
     
  5. deejames

    deejames Member

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    i`ve not had the battery out to look properly yet but it looks damp as apposed to soaking wet
     
  6. deejames

    deejames Member

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    cheers, i will check that - it was a lot of water though, after the big storms a couple of weeks ago i came out to find both front windows down so i suspect it might be a leak somewhere but i will still have a look
     
  7. deejames

    deejames Member

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    where is that located?
     
  8. Sulli79

    Sulli79 Active Member

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    Drivers side rear behind the trim, it's tucked down below where the rear lights are, it controls Windows as well so be worth checking it's all dry down there
     
  9. deejames

    deejames Member

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    cheers for that i will check
     
  10. aragorn

    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    First place to look has to be under the battery.

    There are two drain holes, and they get clogged, which means that plenum area fills with water and overflows into the car.
     
  11. crazy88

    crazy88 Loving the anonymity

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    Ah balls, I have a b6 too but didn't realise this also affected the b5. I just sorted my b6 plenum area, the battery was standing in about 4" of water :(
     
  12. Blue_Thunder

    Blue_Thunder Well-Known Member

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    Also worth taking a look inside your ECU box. I found water and **** had been leaking under mine as the gasket had failed.
    [​IMG]

    Nasty!
    [​IMG]
     
  13. crazy88

    crazy88 Loving the anonymity

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    That's my concern with my b6. There's water in the drivers footwell, I'm hoping it was from the plenum chamber, but I suspect it may be from the ecu. Looks like it's in almost the same place on both the b5 and b6.
     
  14. jcb

    jcb Active Member

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    every audi I hve owned from 90 through B5 C5 has had this problem
    irritating

    leak through ECU hole
    leak through pollen filter
    leak through rear avant indicator seal (C5)
    leak through upper window seal

    useless!
     
  15. deejames

    deejames Member

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    thanks for the advice everyone, i will take the battery out and check all the other things mentioned as well
     
  16. Blue_Thunder

    Blue_Thunder Well-Known Member

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    Ed, when you say leaking through the upper window seal, are you talking about windows, windscreen or rear screen?
     
  17. matt_simo1

    matt_simo1 Member

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    Check where the cabin filter is situated ...there should be a plastic water drainage piece situated under the window and above the cabin filter housing... Mine was broke and leaking water directly into the fan behind the glove box! Good luck
     
    deejames likes this.
  18. PaulJC84

    PaulJC84 Owner

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    I would checl the seal around the pollen filter as some people can be a bit rough when replacing it and the seal goes.
     
    deejames likes this.
  19. Broken Byzan

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User quattro Audi A4

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    My leak was from the pollen filter housing. I dried the seal out. Silicone it into its slot and smeared sealer around the face . As I had previously cleaned the mounting face I just glued it back on
     

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