Leaking door windows. Whats the trick to fixing them??

Discussion in 'Mech Tech' started by Shep Woof Woof, Oct 24, 2020.

  1. Hi all

    The whole time I've owned my van, both my front door wind down windows have leaked when it's raining. Some years back I replaced all the rubbers and paraphernalia but this didn't fix the issue. Still leaks.

    I want to fix them properly as I want to soundproof, insulate and put on door cards.

    So can these be fixed or is this just a thing that happens in old vans? If it is fixable, what's the trick, as having replaced all the rubbers etc once, there must be more to it than just doing that.
     
  2. The doors will fill with water. The scrapers aren’t intended to keep it out. Make sure the drain holes are clear.
     
    Shep Woof Woof and Zed like this.
  3. Zed

    Zed Gradually getting grumpier

    Not just old vans. They are designed to drain and lined with a plastic membrane in recognition of the inevitability of a moving window leaking. Even my windscreen leaks, you have zero chance of stopping the cab door windows leaking short of siliconing them shut. :)
     
  4. I use a thin strip black gaffer tape along the window rubber when it is not in use - keeps the rain out when parked - bit annoying though when you forget to take it off when driving and the window won't wind down on a hot day
     
    Shep Woof Woof likes this.
  5. The cab doors generally are a crap design, although VW didn’t have much choice on a forward-control van where you sit over the front wheels. Soak the rear inner base with Waxoyl and try and park facing down hill - the only drain hole is at the bottom front of the door.
     
    mgbman and Shep Woof Woof like this.
  6. Hmmm, sounds like it's a 'design feature' then! Bugger. It just always seems like a lot of water, but then again I live in Scotland, so it could just be that! o_O

    Well at least it means I didn't fit the scrapers wrong last time.

    Guess I just need some membrane then, or is that just an expensive word for plastic sheeting, which I have plenty of already?

    Thanks all.
     
  7. scrooge95

    scrooge95 Moderator and piggy bank keeper

    I've always used clear plastic bin bags that our council issue for the recycling. Copydex it to the inside metal of the door and cut to shape, punching small holes for the door release, grab handle fixings etc. Remember to make a flap that tucks inside the door vent if you have them. Seems to work fine at keeping any moisture / water from destroying my door cards. As for keeping water out of the doors - get the scrapers and rubbers to fit the best you can to minimise the water entering; you won't stop it all.
     
    Valveandy likes this.
  8. Haha yes !
    I tried more than once to seal my windscreen,but it still leaked... I got used to the rhythmic metronome sound
    of the water dripping off the steering column onto the rubber mat in the night :D
     
  9. mikedjames

    mikedjames Supporter

    I use PVC dust sheet held on with double sided tape. Its strong enough to peel off and restick to the same tape. With the bottom tucked in. Park nose down hill.
     
    scrooge95 likes this.
  10. mikedjames

    mikedjames Supporter

    Windscreen is sealed with acrylic sealant as it doesn't fit properly.
     

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