There's a thermo-fuse for each rear door wiring harness. So if the rear windows move down then the fuses are good. Each blind motor is connected to its door control module (there's a control module in each door). The door control module will activate the blind motor if it receives an input command, either from the switch on the door or via CAN from the roof module.
Have you been using the rear door button to move the window up / down? If yes then the button is good, and we already know the fuse is good.
Odd that both sides don't work and the roof button does nothing. It's probably a coding issue with each door module, or very unlucky that both right and left blind motors have failed.
Once Psyche scans your car we'll know more.
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Matt
2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN,
Last edited by mattylondon; 11th April 2017 at 12:56 PM.
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