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Rear passenger door lock has a mind of its own

Discussion in 'A3/S3/Sportback (8P Chassis)' started by GavConner, Jul 8, 2013.

  1. GavConner

    GavConner Member

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    Hi guys

    I’ve got a strange problem with my rear passenger door

    When using the key fob all the doors open about 90% of the time. The other 10% the rear passenger door lock has a mind of its own and stays shut.

    I thought it might be the battery and swapped it and it started to work fine.

    Then after a few month my wife opened the car using the key (Not the remote)
    I took the key to work and our spare key had no battery so she went old school and used the key :) ……. It only opened the three doors but not the rear passenger door.

    When I got home I used the key fob and again it started to work fine.

    Until last week it started to play up again

    After doing a bit of research I thought it was a faulty door lock.

    So I ordered a used on from ebay and fitted it this weekend ……. Works perfect for 2 day as an then …….. its not working again.

    Strangely, if I give the key fob a double unlock click it will open the rear door …… but this not all the time maybe 50/50

    Its annoying me and also dangerous as that door is used for my 2 month old daughter .

    Any advice or help would be appreciated !!!
     
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  3. NHN

    NHN Retrofitter - Audi - VW - Skoda - Seat
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    Check the door rubber for any broken wires.
     
  4. GavConner

    GavConner Member

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    Thank you for the reply !

    Where about's should I check ?

    Within the door or the rubber bit in-between the door and the body ??
     
  5. NHN

    NHN Retrofitter - Audi - VW - Skoda - Seat
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    Not being funny fella, but I did state door rubber.
     
  6. GavConner

    GavConner Member

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    Sorry,

    Just thought the door might have many rubbers inside it :(

    I'll check, thanks !
     
  7. GavConner

    GavConner Member

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    Well, I've checked the rubbers and they are perfect

    Any other ideas ????
     
  8. NHN

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    Door lock would be my next port of call, ideally I would get someone with vcds & do some diagnostic tests with the measuring blocks to see what the door lock is showing as a state when open, closed etc, if you get no comms with the rear door then its wiring which would explain why its not unlocking as no can signal to action upon.
     
  9. GavConner

    GavConner Member

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    I've replace the lock and it that has not worked.

    So I'll get it into the garage and do some diagnostic tests with the measuring blocks

    Thank you
     

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