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Mk5 golf drivers door not locking.
If the lock slowly started to lose power speed locking and locking or would stop working intermittently and start again the motor actuator is most likely to blame.
I tried to lock the door from the passenger s side and the passenger s side would lock but the driver s side would not.
Just unclip and pull back the rubber boot and check the wiring.
You will not get all the screws out.
So can you lock the car by using the key in the drivers side door lock.
I did find one post on the mk5 golf gti forum that looked hopeful though even though ours is a match not a gti and decided it was worth a try.
How to remove vw golf mk5 door lock to repair central locking issue.
The power windows lock unlock trunk release mirror switches and all that do not work.
If it works will the wiring pulled slightly the wiring in the actuator will be bad.
One operates the central lock switch on the drivers door while the other tries to open the passenger door.
Also you can take the door panel partly loose.
You do need two people.
Golf mk5 gttdi 2 0 nov 19 2007 3 1 on the fuse.
The issue will likely be in the actuator and the drivers door panel will need to come off.
With the door open flip the latch and open it so you can see how it works.
Just something els to check while your looking at the wiring at my work we used to see alot of mk5 s with similar faults.
If one set of switches can control the windows it s likely the switch on the opposing side that needs to be replaced.
The windows work off the passenger side switch but not the drivers side or vice versa.
You try and open the door at the same time as it tries to unlock.