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  1. Plenum chamber questions. 
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    Evening all,
    quick question, does a b7a4 have a plenum chamber (or similar void in the bulkhead between rear of engine bay and rear of dash board) below where the battery, wiper motor, ecu and pollen filter sit like that of a touareg has? If so can water access such a void and if there are drain holes, where are they as i heard water sloshing aroud earlier and wondered if it wasn't being pumped round the heater matrix, could it be trapped by blocked drain holes? The var engine was cold when i heard this.
     
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  2. Re: Plenum chamber questions. 
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    Quote Originally Posted by Ben View Post
    Evening all,
    quick question, does a b7a4 have a plenum chamber (or similar void in the bulkhead between rear of engine bay and rear of dash board) below where the battery, wiper motor, ecu and pollen filter sit like that of a touareg has?
    Yes. Most VAG cars from the Mk1 Golf onwards have them.

    Quote Originally Posted by Ben View Post
    If so can water access such a void
    Yes

    Quote Originally Posted by Ben View Post
    ...and if there are drain holes, where are they
    Audi B7 A4 Flooded Footwell

    Good luck


    Considering selling my VCDS KEY-USB interface. If you're interested please contact me via PM or email.
     
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  3. Re: Plenum chamber questions. 
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    I had the same noise with mine and when I looked the pollen filter was damp,even though I'd cleaned the drain 6 months ago,so now I've removed that piece of rubber and I found a large oval rubber blanking plate under the battery which also went in the bin, hopefully that'll stop any water build up
     
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  4. Re: Plenum chamber questions. 
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    many thanks, the chamber where the battery sits is free from water, maybe it was just moving round the system.
     
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  5. Re: Plenum chamber questions. 
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    could be the heater matrix dropping coolant, thus you can hear it sloshing around, which could be linked to your mystery leak. do you have damp carpets up near the heater outlets near your feet.
    Audi 80 tdi avant with 360,000 miles...
     
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