I have a 1991 735iL. My brake lining warning light came on about a month and a half ago. Since then, I have replaced all four rotors, all four sets of pads, and both brake lining sensors. Everything was fine for a week or two, now it comes on on a daily basis. I assumed (big mistake usually), that with everything new the warning should go away. Any ideas as to why it is still coming on? Do I have an electrical gremlin or is there another indicator that I am missing? Any help is greatly appreciated.