Yeah there a nightmare the windows.... i got a p reg 5 door gti, i had a problem with the passenger side rear window, the motor was fine, at some point it had maybe jammed, and the previous owner managed to open it but had nackered the housing that the window slots into... which is only a plastic overmould with metal insert which the motor cable is connected to that moves the window up and down.... anyway I cut down a nylon block and bolted it to the housing to repair it myself, works fine and never had any other probs with it... i do have a problem with my drivers side on now and again, the button on the door doesnt always seem to work, you got to mess about with it and it eventually works. could be some crap in it maybe... just need time to check it,,, the door cards are easy enough to take off tho.. hope this helps.