I'm finishing a 14 month overhaul of a '87 325e (spare time project). I'm down to a few electrical issues I need help with. The Brake Check light in the overhead panel is continuously on. I've checked the tail light housings and connections, repalced the check light switch module (mounted in the trunk) and performed wire checks for grounds. On a few occasions the light will go out, but not stay out for long. Any ideas or similar problems in this area to pass on?