1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Water in Avant boot lid

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by DALE_AVANT, Dec 4, 2012.

  1. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Dec 4, 2012]
    Hi all.

    There is water getting into my Avant boot lid that seems to have got there via the heavy rain we have had. When I raise the bootlid it drains away quickly. Water can also collect on the rear retractable cover over the boot space.

    It is not due to the rear washer pipe as I have not used the rear water, any ideas anyone?
    #1
  2. Ads

    Ads

    [Sep 19, 2014]

  3. Av4nt
    Offline

    Av4nt Well-Known Member

    Joined:
    May 27, 2012
    Messages:
    1,029
    Likes Received:
    218
    [Dec 4, 2012]
    No idea but i have the same issue with my rear passenger side door...leaks into the car onto the seat and really fks me off!!! after heavy rain also. all the seals appear fine etc so i dont know I gave up looking and trying lol
    #2
  4. moggie93
    Offline

    moggie93 Member

    Joined:
    Nov 2, 2011
    Messages:
    81
    Likes Received:
    2
    [Dec 5, 2012]
    I've got the same problem.. Looks very like the water is getting in thru' the seal on the high level brake light..
    M
    #3
  5. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Dec 5, 2012]
    Is it a replaceable seal??
    #4
  6. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Dec 8, 2012]
    Anyone solved this problem before?
    #5
  7. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Dec 10, 2012]
    Surprised that no-one has had to do this job before :(
    #6
  8. southylad
    Offline

    southylad Member

    Joined:
    Oct 9, 2012
    Messages:
    492
    Likes Received:
    25
    [Dec 10, 2012]
    are you sure its not getting in round pollen filter under windscreen then traveling down vent to rear passenger footwell very comon fault with passat and a4
    #7
  9. moggie93
    Offline

    moggie93 Member

    Joined:
    Nov 2, 2011
    Messages:
    81
    Likes Received:
    2
    [Dec 10, 2012]
    Hi there, sorry I've taken so long to reply.. I just replaced the whole light unit as mine had a few cracks and broken bits on the top side of the light.. As hard as I tried I couldn't remove the unit in one peice.. I would try some clear silicone round it to see if that solves the problem. If it does you then know the culprit.. Good luck.
    M
    #8
  10. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Dec 21, 2012]
    Thanks for the reply but it's in the bootlid
    #9
  11. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Dec 21, 2012]
    Could it be coming in via the bootlid hinges??
    #10
  12. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Dec 24, 2012]
    Anyone?
    #11
  13. Greeny233
    Offline

    Greeny233 Active Member

    Joined:
    Mar 17, 2011
    Messages:
    722
    Likes Received:
    126
    [Dec 25, 2012]
    I'd sit in the boot and get someone with a hose to soak the car and wait for it to start leaking. That'll show you where it's coming from.
    #12
  14. Mike_B
    Offline

    Mike_B Member

    Joined:
    Aug 22, 2011
    Messages:
    237
    Likes Received:
    18
    [Jan 15, 2013]
    Almost certainly the seal round the high level light - it's such a faff getting the rear trim off incidentally. I suggest using "dum dum" compound rather than silicon. It's a non setting, black sealant which is used on Land Rovers and other British cars in a variety of contexts. (Search "dum dum sealing compound"). It's generally used as a leak stopper - something all LR owners will be familiar with!

    Take a blob, roll into a thin sausage, force into the gap. I've found an old credit card to be helpful, and the round corner helps give a smooth, neat finish. Clean residue with white spirit or turps.

    I had a similar problem - this solved it. Dum dum is very useful for all sorts of other little jobs where you want a sealant which remains flexible and won't dry out / go hard and brittle.

    Mike.
    #13
  15. moggie93
    Offline

    moggie93 Member

    Joined:
    Nov 2, 2011
    Messages:
    81
    Likes Received:
    2
    [Jan 20, 2013]
    I was replacing my rear wiper arm today and it looks like I've found another possible source of the water ingress into the tailgate..after trying my rear wash wipe I noticed water coming out from the rear wiper motor.. Ill strip it out and see if I can find the source of the problem..
    m
    #14
  16. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Feb 1, 2013]
    I reckon water must be coming in at a higher level on mine as it is dripping onto the rear parcel shelf, so I'm thinking the the high-level brake light might be allowing water in?
    #15
  17. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Feb 3, 2013]
    So, bootlid interior trim removed today and it looks as though water is coming in at the high level brake light. Having removed that and inspected, the seal on it looks pretty rubbish so will refit with some form of semi-permanent sealant. Can't seem to find dumdum anymore, anyone know of a suitable way of sealing the light unit that wont leave odd streaks down my car when it rains :think:
    #16
  18. Mike_B
    Offline

    Mike_B Member

    Joined:
    Aug 22, 2011
    Messages:
    237
    Likes Received:
    18
    [Feb 4, 2013]
    Hmm - it seems Dum Dum is no longer produced. Sorry about that - -
    #17
  19. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Feb 4, 2013]
    No problem! Thanks for the heads up anyhow :icon_thumright:
    #18
  20. DALE_AVANT
    Offline

    DALE_AVANT Avantage

    Joined:
    Jan 23, 2012
    Messages:
    449
    Likes Received:
    9
    [Feb 5, 2013]
    Anyone know of a suitable sealant?
    #19

Share This Page