Well after living with this for such a long time, well the window opened then wouldn't close again and stuck like this, I have decided to fix the problem.
I pulled the door card off and removed the motor (and controller) to get part number 1K3 837 402AD.
Now the motor is attached at the bottom right hand corner, by two hex screw's. I wondering if I can just get any window motor mechanism and swap the motor over to mine - the motor hasanothe rpart number on the back - (Hella logo) 0 130 122 229
Anyone got any experience of doing a diy fix like this?