GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: richandhazel on 20 September 2010, 15:33
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I've run out of ideas and hoped someone can help :undecided:
N/S rear door won't unlock/open either from inside or outside. All other doors are fine.
It appears to be a mechanical problem as I have even tried disconnecting the battery.
I have now managed to remove the inner door card (not easy with the door shut.......took pics so can produce a guide, without breaking clips :wink:) and the plate so that I can get at the back of the module but I'm not sure that has helped.
I can't see what needs to be operated or moved to open the door.
I'll upload some pics that show where I am now..............
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Only thing I can think now is to look for another cheap one off ebay and when I get it tinker with it to see what can be mechanically operated to open the door.
Desperate for ideas if anyone can help.
Pics:-
(http://img.photobucket.com/albums/v603/richandhazel/100_3131.jpg)
(http://img.photobucket.com/albums/v603/richandhazel/100_3133.jpg)
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Anyone? Driving around now with everything removed (as it shows in the picture) with a block of wood holding the window up :shocked:
I would try destroying the lock module, if I can as it is, but I'm not even sure if that will help :cry:
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just ask a chav i am sure he will know how to open it for u :wink:
just pop into vw i am sure one of the tech guys will say how to open it with out damaging the door. It is prob full of grease try blasting aload of wd40 and leave it over night.
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just ask a chav i am sure he will know how to open it for u :wink:
just pop into vw i am sure one of the tech guys will say how to open it with out damaging the door. It is prob full of grease try blasting aload of wd40 and leave it over night.
Hmmm, good idea with the WD40, I'll try that............could get lucky.
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there is a small brass lever on the inside face which needs to be flicked up to unlock, then assuming the childlocks are on you need to get at the outside face of it to operate the exterior handle lever. I have an old broken one at the workshop but won't be able to get pictures until tomorrow :undecided:
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I found some pictures yesterday..........I'll upload them.
Child locks aren't on but something is stopping the mechanism from unlocking. Operating the inside handle you can force the pop up knob upwards but it is only because I am fighting the mechanism. The module is not unlocking and the knob drops back down as soon as you release the handle..........very odd :undecided:
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These were a couple of pictures that I found on ebay yesterday. I thought they might help me identify the problem:-
(http://img.photobucket.com/albums/v603/richandhazel/Temp/LHreardoorlock.jpg)
(http://img.photobucket.com/albums/v603/richandhazel/Temp/LHreardoorlock1.jpg)
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I reckon that white plastic piece is bulking it and preventing it from unlocking but there is no way to get at it in situ :cry:
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in the first picture, the lever on the left (the one with the white plastic attached which usually has the locking pin connected) needs to rotate clockwise to unlock
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I'll have another try when Hazel gets back with the car...........I reckon I need to try and find a way to let the right hand lever rotate past the white plastic lever/bulk. I may be able to get at the metal part and bend it to clear the plastic, not sure without looking.
Thanks for the input.........I'll let you know how I get on.
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Had exactly same problem pal. Had to remove doorcard from inside which is "fun".
I then used a pry bar upagainst the lock mechanism and whacked it with a hammer on the lever to open it.
I also had it on another car which i simply banged the door from the outside with my hand and that opened.
Either way........
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Well, I can't get at the part of the mechanism that you're on about Chris :cry: It's right against the door skin.
I've tried the banging on the door technique whilst unlocking.......no joy there.
Out with the pry bar :shocked:
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Still won't budge :cry:
Just looked at the manual and its not an MOT failure. The front doors must open from inside and out, the rear ones must latch closed............it does that all right :shocked:
I think we're going to live with it and I'll put it back together...........damned inconvenient :angry:
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weld both the doors shut and make it a 3 door :P
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I'll leave it all apart for now in case someone comes up with a magic solution :huh:
Chris, if you do get a chance to look at yours can you let me know if you think there is anything that might be preventing it from manually unlocking. It looks like there is a motor as well as the microswitches in the module so I'm wondering if the motor hasn't reached a full position and the microswitch isn't talking to the convenience unit :undecided: That in turn may be preventing the mechanical side from operating :undecided:
Going to dig out the wiring diagrams and peruse them in the meantime.
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weld both the doors shut and make it a 3 door :P
Yeah......could be worse I guess. At least the kids can still pile in from the N/S passenger door :smiley:
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if you go into measuring blocks under the CCM in vagcom you can see what state the 4 microswitches are in, but it seems more like mechanical failure to me.
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I think you're right...........clutching at straws really.
Not exactly sure what that motor does but its pins 1 & 2 on the connector so I'm tempted to try putting 12V through the pins and see if anything moves.......can't really make anything worse as long as the convenience unit is disconnected.
(http://www.agthompsonfamily.com/vw/DoorLocks6.jpg)
I could try VAGCOM tomorrow.........if only out of curiosity. Lock all the doors and compare the readings. I might be lucky and it'll be microswitch 4 which is on the mechanical side and easy to get at the wiring :undecided:
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no4 only tells the ccm that the door is open or closed, it's the one that most often fails but it shouldn't jam the door shut. Doesn't hurt to have a play though!
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Door open! :grin: :grin: :grin: :grin:
I put 12V on pins 1 & 2 and I guess I got it around the right way as the lock fired up and unlocked the door :smiley:
Got to go to work now but tomorrow morning I'll pull the module out and check those microswitches and in particular the soldering :wink:
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i'll have a dig around later, might have a module that'll fit for you
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i'll have a dig around later, might have a module that'll fit for you
Cheers Chris,
There's obviously something mechanically wrong as the door will only open from inside, probably mechanically unlocking it in the process. Won't open with the handle outside. Maybe driving the motor in the other direction will unlock it properly but I'm going to quit whilst I'm ahead, with the door able to open, and remove the module for further investigation. Play around locking and locking it off the door.
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yes driving in reverse should solve your dilema lol
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i'll have a dig around later, might have a module that'll fit for you
Any luck with that module Chris?
I removed my one yesterday and dismantled it. Sure enough two of the micro switch soldered joints had dry joints at the plug connection end:-
(http://img.photobucket.com/albums/v603/richandhazel/Temp/100_3142a.jpg)
Re-soldered, reassembled and refitted and works perfectly electrically now. However, there is a mechanical problem that I suspect we have has for a long time that has only come to light since the electrical side failed. It will lock/unlock electrically fine (now), it will lock/unlock mechanically (using inside handle) fine, but if you lock electrically it will not unlock mechanically :shocked:
So it's back together and working but if the electrical side ever fails in the locked position I could be in similar if not worse situation again.
So, if I can get hold of one at a good price then I'll replace it :smiley:
Right back to the mk1...........oil pressure sensor to replace to get my VDO oil pressure gauge to work :smiley: