Thanks guys. Mike - next time I'm with the car I will get you a pic.
In this pic you can see the white rectangular plastic thing needs to be connected to the barrel assembly. Image Unavailable, Please Login
Here it is connected. I used a long flat blade screwdriver to push it together. Image Unavailable, Please Login
Reconnect the electrical connection and it fits into a little slit at the top of the door. Image Unavailable, Please Login
To remove the glass from the motor there are two brackets each with two bolts. Image Unavailable, Please Login
the motor spindle is a 1/4" drive. so if you stick a 1/4" ractchet in there, you can simulate what the motor is doing. what appears to happen is when you turn it one way, only one of the brackets moves up. and when you turn it the other way, the other bracket tries to move down. i.e. the motor drive only seems to effect on of the two sides, and the other side is just dragged up or down by the glass. that is interesting.
I don't think the glass lift actually works that way. You have to make sure that the two push-pull cables are synchronised, otherwise the glass will skew and jam in its guides.
Hi Miroljub. I agree it does seem strange. Perhaps mine is broken. Unfortunately you can't (easily) take the middle part where the motor drive meets the assembly apart, to actually see what's going on. I can tell you that the behaviour of my passeneger door one is exactly this. With no glass attached, when you turn one way, one bracket goes down and when you turn the other way, the opposite bracket goes up. Perhaps when the glass is attached it activates the synchronisation ? I can tell you that when it goes back in the car it seems to work (although very slowly...)