Results 1 to 8 of 8

Thread: Door wont unlock

  1. #1
    Junior Member
    Join Date
    Jan 2019
    Posts
    4
    Post Thanks / Like

    Door wont unlock

    Hi, I have a 2005 Passat 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
    Junior Member
    Join Date
    Sep 2018
    Posts
    14
    Post Thanks / Like
    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
    Junior Member
    Join Date
    Jan 2019
    Posts
    4
    Post Thanks / Like
    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

  4. Thanks Groundworker thanked for this post
    Likes Groundworker liked this post
  5. #4
    Administrator Crasher's Avatar
    Join Date
    Apr 2006
    Location
    Nottingham, England
    Posts
    24,533
    Post Thanks / Like
    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.
    If you care about the future of the planet, read this and watch the video

    https://www.bosch.com/stories/synthetic-fuels



    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 Ė 13 April 1956)

  6. Thanks IanF, Groundworker thanked for this post
    Likes Groundworker liked this post
  7. #5
    Junior Member
    Join Date
    Jan 2019
    Posts
    4
    Post Thanks / Like
    So, basically just keep pulling on the inside and outside handles - and thumping it ? !
    2005 Passat B5 Estate 1.9 TDI-PD

  8. #6
    Junior Member
    Join Date
    Sep 2018
    Posts
    14
    Post Thanks / Like
    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

  9. #7
    Junior Member
    Join Date
    Jul 2019
    Location
    London
    Posts
    11
    Post Thanks / Like
    Iíve joined the club on this one! Sounds like I was trying to be too clever, Iíve got access to the lock from inside the door but didnít know where to go next...

    Will revert to the American screwdriver approach instead

  10. #8
    Junior Member
    Join Date
    Jul 2019
    Location
    London
    Posts
    11
    Post Thanks / Like
    Not wanting to go destructive on the lock I’ve managed to get the car scanned and turned up codes 01334 (right rear no comms - intermittent), 00928 (front driver side 27-10 implausible signal - intermittent), and 00931 (right rear 27-00 implausible signal). Bonus points for the drivers door, was not expecting that though the puddle light doesn’t always come on.

    Also pulled off the flex hose cover of the rear door, pushed on the connectors and *click* it had been loose. The rear door makes a whimpy attempt to do something when I lock with the driver door controls but nothing on unlock.

    Is there a VCDS function to force an unlock attempt in the module?

    thanks team!
    2004 Passat B5.5 1.8T AWT

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •