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Thread: Door wont unlock

  1. #1
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    Door wont unlock

    Hi, I have a B5 Estate, the drivers side back door wont unlock / open ! even if I go inside and try open from the inside, when I pull the handle, the lock pin comes up, but the door wont open ? !
    This has just happened.

    Also, and older issue, I have to use the key to open the boot, the remote on the fob or the button inside on the drivers door, or the switch on the boot lid doesn't work, so is this an electrical issue ? is it an easy fix ?

  2. #2
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    Hi Ian F, I would be interested to hear what others may say on this as I am also suffering from a locked door [on my 2004 Highline Passat], that refuses to open in anyway shape or form. I have been told to check the CCM [Comfort Control Module], which controls a lot of stuff including windows, central locking etc. The unit is situated under the carpet on the passenger side of the car and is prone to getting a lot of water in it. It's fairly easy to locate and take out for a look to see if the water has got in around all the sensitive electrics. As I understand it if you change this unit [CCM] you will need to reprogram your remote, but I stand to be corrected here. I am in the dark with my car as I have check the CCM and it was externally damp but otherwise looked ok and all connections were clean and sound, and no water inside, but after fiddling with all the contacts it made no difference to my door opening. I will watch to see if other have any more ideas.
    2004 Passat Highline 1.9 TDI-PD

  3. #3
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    Quote Originally Posted by Groundworker View Post
    Hi Ian F, I would be interested to hear what others may say on this as I am also suffering from a locked door [on my 2004 Highline Passat], that refuses to open in anyway shape or form. I have been told to check the CCM [Comfort Control Module], which controls a lot of stuff including windows, central locking etc. The unit is situated under the carpet on the passenger side of the car and is prone to getting a lot of water in it. It's fairly easy to locate and take out for a look to see if the water has got in around all the sensitive electrics. As I understand it if you change this unit [CCM] you will need to reprogram your remote, but I stand to be corrected here. I am in the dark with my car as I have check the CCM and it was externally damp but otherwise looked ok and all connections were clean and sound, and no water inside, but after fiddling with all the contacts it made no difference to my door opening. I will watch to see if other have any more ideas.

    Thanks for this, I'll have a look at that, thanks
    2005 Passat B5 Estate 1.9 TDI-PD

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  5. #4
    Administrator Crasher's Avatar
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    This is an extremely common VW problem and more so on the Passat 3B rear doors than anything, it is caused by a lack of maintenance in not giving the lock units a blast of spray grease every inspection service.

    To get the door open we start by pulling, pushing, thumping the door handle and the inside handle at the same time with two people also opening the lock and often after half an hour or so it will open, don't try and be cleaver and lubricate it and try again, just fit a new genuine VW lock, not fleabay Chinese or used. The lock is quite an involved part to chnage involving the risk of breaking the window.

    If this fails you have the awful job of accessing the mechanism with the door closed which is an evil job and often damages the trim panel. This allows you to attack the back of the lock unit and get the door open.
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  7. #5
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    So, basically just keep pulling on the inside and outside handles - and thumping it ? !
    2005 Passat B5 Estate 1.9 TDI-PD

  8. #6
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    Crasher, thanks for the inclusion in resolving this problem. As a matter of interest what is the cost of a lock mechanism?
    2004 Passat Highline 1.9 TDI-PD

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