Audi A4 2.0 B6 ALT engine [a4][a4][a4] My rear right door is misbehaving but in a not too serious way. The door locks ok and the window and full closure works too. The only nag I have with it is that when I open the door, the puddle/vanity/footwell lights do not illuminate.. Sometimes they do. I removed the door panel and managed to figure out that something in the lock mechanism is not doing what it should do. If there is anyone who knows how to replace the lock please help with info.