Hello guys, I drive an Audi 80 (B4) Avant and have the following problem since last week. With me the wear indicator for the brakes lights up, how long can I still drive with it or how to change the discs and coverings yourself,fals it is necessary. Have taken extra vacation to perform the reperture. Which special tools do I need to do this? and how expensive are the parts? I do this for the first time,and would be pleased with your advice.