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C/locking pump problem

Jac May 23, 2006

  1. Jac

    Jac New Member

    I have an A4 1.8, 97/P reg, that has a problem with the e/w & c/l (they dont work at all). Anyway, I checked in the boot rear 1/4 area and noticed that the pump unit for the c/l was missing. I managed to borrow one from an A3 with the same connectors etc. and it appeared to do the trick...until the indicators & fog light switch on the dash started flashing (silent alarm?). Also, the c/locking stops working once you've closed & opened the doors for the first time.
    If I disconnect & reconnect the unit it seems to be ok until you open & close the doors, then the indicators start flashing again....

    Any ideas?

    Great site btw!!

  2. Rev-head

    Rev-head Active Member

    Sounds like some sort of relay problem to me?.........do the electric windows work ok?
  3. Jac

    Jac New Member

    Windows work fine.
    I thought that even though the unit from the A3 (1999 model) fits the A4 (1996/7) that there may be small differences in the wiring in the unit itself which could upset the A4?
    You mentioned a relay, how can I rule this out?

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