Passat (B6) :: Driver Side Handle Doesn't Open The Door?

I have earlier had problems with my driver's outside door handle which now and then doesn't open the door for a week or two, but then suddenly starts to work as normal again for long periods.

Yesterday one of my children had grabbed the outside door handle while I was operating the remote to unlock the car. After that the outside door handle doesn't work any more. I find it unbelieveable that VW designs a system which doesn't gracefully handle a grabbed handle while operating the central lock.

Anyhow, I took off the outer bottom window seal of the door and immediately saw the brown wire coming from the lock assembly. It is supposed to be straight, but this was loose. Look at this image (wire mirrored from the window):

[URL]

Most internet tips tells me to slam the door a number of times until the wire returns to its position and all is well - probably until the next time the same thing happens...

I have two scenarios, my driver's door handle which doesn't work now and then, and the rear side door which immediately stopped working after the handle was pulled while I unlocked the car.

In the first scenario I aussume that it would be ok to lube or clean the wire? But what is the cure for the second scenario? Also can I somehow access the other end of the wire (at the lock mechanism end) without completely dismantle the door?