Hello
I have 2000 A6 avant AWD and I'm having major problems.
My A/C is not working correctly and more important my WINDOWS/Sunroof, interior lights and power door locks don't work at all.
Please help with in any way you can! I think it may be a main computer system that is down.
Thanks in advance for your time!
Happy Friday

 

Have you gone through and checked all of your fuses and relays before spending ($$$$) money on an ecu?