I have an 89 535 that has a completely mental dashboard. Sometimes it works, sometimes it doesn't. Sometimes the messages are in English, sometimes in German. Sometimes it just starts flashing numbers and letters all over the place and and gets really whacky. Sometimes when everything is ok and I attempt to stop at a red light, after depressing the brake and slowing down the lights go crazy again. And when I take off real hard and the engine revs out the dash kicks back on again. Forget about the electric chime. It just about rings all the time. I had to remove the damn thing......drove me nuts. I took it to BMW.......3 times......and of course it never happens when they're checking it out. Has this ever happened to anyone. Any info would be greatly appreciated. I'm ready to put a match to the car.