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Thread: Water leaking into footwells - new solution

  1. #1
    New Member boardinbob78's Avatar
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    Default Water leaking into footwells - new solution

    After a few months of going crazy with my vectra c leaking rain water into both footwells after every downpour i finally found the problem:


    THE SYMPTOMS:

    When my car had been standing in rain,water seem to be pooling somewhere behind the dash then leaking into both footwells when driving off. I could hear water sloshing from side to side as i drove. Took both "L" shaped panels off in both footwells to expose ecu/wiring and water could be seen pouring down both sides behind soundproofing, eventually seeping under carpets and soaking them through. Before I removed these panels you can't notice the leak as it cunningly leaks hidden to below carpets.


    THE SOLUTION:

    Most people told me it was common for the vectra to leak through the pollen filter into heaters and through pipes into footwells caused by blocked drains in scuttle panel - this wasn't an issue in mine as it drained how it should do!

    Next i decided to have a windsreen "accident" thinking a seal may have gone, got the screen replaced but made no difference!

    Then i noticed this gap after removing wipers and scuttle panel top cover. Just below where this panel clips to windscreen there is a gap where windscreen ends and bodywork starts - only a few mm wide but runs width of screen and opens out slightly towards edges. Anyway seems water runs down edges of windscreen and can enter this void, then sit patiently there until u drive off and somehow enter the footwells.

    All i did was fill this gap in with silicon sealant from edge to edge to make it water tight and TA-DAH not leaked since!!!!

    Not sure if this is a common complaint or I've just got a friday afternoon car but did the trick!!!

    See pic below, sorry i stole it from someone else.

    Attachment 35626

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    hi there, i also have this problem with the signum, it is only in the passenger side footwels and runs from the passenger footwell through to the back, it appears that the carpet shows that the water seems to absorb into the carpet from the centre of the car then run through the sound proofing then to carpet then through the air holes under the chairs.
    basically i need any idea anyone has into sorting this as i go on tour soon nd dont want to leave the car to come back to it full to the brim with water :P

  3. #3
    Regular Member markj23's Avatar
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    does your heater fan work? have you checked the scuttle panel drain?

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    Full Member Big Sig's Avatar
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    Had this problem with mine, I finally discovered - after hours upside down in the footwell which is not easy being my size - that the water was tracking down a cable through the bulkhead due to a grommet being loose!
    Now I need a turbo to keep up!

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    New Member boardinbob78's Avatar
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    since i sealed this gap with silicon it has not leaked, worth a try cos once u put the scuttle panel back on u can't see the silicon sealant.

    be interested to know if anyone else has tried this cos i can't see how this many vec/sig owners can have blocked scuttles to the extent of water pouring into footwells - i'm sure we got ourselves a design problem here!!

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    After the lovely weather today i have noticed my passenger footwell has become a swimming pool and the water has tracked back all the way through to the rear carpet, ill have a go at above solutions to the problem and let you know how it gets on.

    Cheers guys. Lee.

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    New Member boardinbob78's Avatar
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    ............also always park facing downhill, even more water seems to come in when u park nose up!

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    Regular Member speaker's Avatar
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    I have the same problem with my Vec. Also hearing water in the front when taking a corner. Although I cleaned the drains a week ago.
    Going to try it tomorrow.

    Let you all know if it worked !

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    Regular Member bighammerfan's Avatar
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    Quote Originally Posted by see_a_moon View Post
    hi there, i also have this problem with the signum, it is only in the passenger side footwels and runs from the passenger footwell through to the back, it appears that the carpet shows that the water seems to absorb into the carpet from the centre of the car then run through the sound proofing then to carpet then through the air holes under the chairs.
    basically i need any idea anyone has into sorting this as i go on tour soon nd dont want to leave the car to come back to it full to the brim with water :P
    Are you sure its not the heater matrix leaking ? I had the same problem with a Range Rover

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