Audi A4 Interior Lights Wont Turn Off. I had the ESP light come on when driving no other check engine lights at the time. Audi A3 Interior Lights Wont Turn Off.
Best Audi A4 World Telusuri. If not you have bought a B7 switch and they dont work despite what some eBay sellers may say. Switching on dipped headlights.
I read in other forums to check the brake light switch.
I think its 8E0941531 with no letter after it or with A after it that works for the B6. All just wanted to add my 2 cents. Look closely for broken wires within the rubber interconnect tube in the door jamb. I think its 8E0941531 with no letter after it or with A after it that works for the B6.