Hi, my name is Oleg, I am an amateur mechanic, I always maintain and repair my car on my own, than I share with you.
In the car Audi A6C5 in all the doors of the factory installed on 2 lights, which are included when you open the door. This feature is very nice and useful. But the reasons for the malfunction of the backlight can be very much. In this video, I used the example of my 1999 A6S5 car, the release of 2.5 TDI AFB, to make a troubleshooting algorithm.
In this case, as a rule, you can solve the problem with the central lock, because some elements of these systems are intertwined in the mechanism of the central lock.
https://yadi.sk/d/cwYj1PaF3CgsWQ - here you can download the electronic version of the Audi A6C5 repair manual.
https://yadi.sk/d/NZ6gkQph3SFhqo - here you can download the program Autodata 3.45. A very useful program for those who are interested in car repair, but there are problems with installing on a laptop (I turned to programmers).
http://ali.pub/3108i6 - here you can buy a microswitch