I've recently bought a 1992 GT II with electric windows- neither of which are working!
I've had a play with them today and come to the following conclusion:
Drivers side has had a new regulator and motor at some point, a 533837401D and just needed a bit of grease to get it going again - however - it will only go down, not up, although I switched the wires round on the motor and it will go up (using the down button), but it seems the "up" button on the switch isn't working.
Passengers side has a completely different regulator - like this: https://goo.gl/images/3vHxMH
- which is pants compared to the other one, the cog is loose and doesn't grip the cable, there was a phenomenal amount of muck in it preventing it from moving- I got it going with some WD40 but its beyond repair!
Both motors are working however ! A couple of questions on this if anyone could help :)
The drivers door switch - is it safe to say its the switch that's faulty here or is it possibly a relay somewhere - are there separate ones for drivers/passengers window?
Could it be the motor? although it will go both ways by swapping polarity manually.
does anyone know where to get the switches from? I can't find them anywhere, they seem to be a lower profile than those in mk2 golfs.
Passenger regulator - is my only option the very expensive ones from VWH?