I have an '89 M3. When I tryed to start it the other day it fired for an instant, then quit. After a second attempt the tone of the starter changed. It sounded like the motor was spinning without any compression, as if someone had removed the sparkplugs and there was no longer any compression. I've listened for the fuel pump and it's operating. I also pulled a plug and spun the motor to see if it's getting spark which it is. My mechanic said that maybe the timing chain broke, but if this were the case then the distributer could not turn to provide a spark. There has been no noise or ocurring problems prior to this. My only other concern is that I rinsed off the engine on Sunday and drove it in the garage. I didn't try to start it again until Thursday. I know this is long winded, but I've tried to be thorough. I'm puzzled and don't want to have it towed to my mechanic if it's a relay or something I can repair.