I'm a bit puzzled with my electric windows.
When I first bought the car, the previous owner told me that the front passenger window switch didn't work, so you had to close it using the switch on the drivers door. Not a problem. A few months later, for some reason the switch just started working again. Magic!
Today when driving back from a heavy night out, my girlfriend had the window down (there's no way I was going to let her hurl on the Recaros!). When we got onto the motorway, I tried to close her window but found that I couldn't do it from the switch on the drivers door. Odd thing is, she could still control it. An hour or so later and I still couldn't control it, however when I finally got home, I was able to close it.
Loose connection maybe? Can I run any tests in Vagcom to see if the switch on the drivers door is sending a signal?
No doubt require another engine out problem on the S4... they always seem to be!