passat b3 climatronic & air recirculation issue malfunction

Discussion in 'Miscellaneous Technical Queries' started by arnau, May 10, 2010.

  1. arnau Forum Member

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    Location:
    Barcelona - Catalonia
    hi, I finally completed the passat climatronic retro fit into my corrado but now I have some kind of issue with the recirculated air function.

    The thing is that if I push the recirc. button on the climatronic, I can hear the vaccum valve unit 'clicking ', and I can see the recirc. flap closing :thumbup:

    however, after, let's say, 10 - 20 seconds, I can hear the VVU click again and then the flap closes [:x] I have pulled out the flap servo vacuum pipe and I can feel how it sucks my finger.


    there's no air leaks etc, so, may it be the usual operation of the recirculation? I think not..


    any help will be welcome :thumbup:
     
  2. Crispy 8V CGTI Committee - Club Secretary Admin

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    whats the vacum pipe going to, and from what?

    whats the recirc unit out of, any fualt codes with it?
     
  3. arnau Forum Member

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    Location:
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    the vacuum pipe is the one that goes from the VVU (the red box) to this

    (the bottom-right thing)
    [​IMG]

    the recirculation valve (picture) works right but it just works for 10-15 seconds.


    I swapped the VVU, intake temperature sender (under pollen filter) and electrical motor for the air intake (just under the pollen filter, too) yesterday but it's doing the same :( recirculation works only for 10-15 seconds, then i can hear the VVU clicking and the recirculation goes off :(


    do you have climatronic too? if you select recirculation, should air conditioning kick in at the same time? could you try it please?

    thanks for your help :)
     
  4. arnau Forum Member

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    I forgot to say that there are no error codes in the climatronic :(

    but I have all air conditioning wires removed from the climatronic harness, so .. may it have any relation with recirculation then?
     
  5. arnau Forum Member

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    Location:
    Barcelona - Catalonia

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