i've recently had an issue with my Audi A3, electric windows. Its intermittent in going up and down. Has anyone else experienced this?

 

Sounds like you have a short in the wiring probably in the door hinge of the drivers door.

Do all 4 do it or just drivers door?

Check the ground wire (brown) at the hinge for breaks. And any other wires for breaks.

Does the window operate normally with door open but intermittently works when closed? If so it's definitely a wiring issue.

Very common on 8p a3.

If it at all sounds a bit rough when operated it will be your regulator. If it sounds good and doesn't struggle then rule out the reg and the motor.

 

More than likely wiring problem mate

 

Chris