I'm new and not technical at all. My 2000 z3 2.3 w/41000 has a brake fluid light light on and I think the stabilty light . When I checked the fluid level it was good. I did notice the wiring harness attached to the resivor seems like it dry rotted and snapped from where ever it leds to. Is this common? or is it something I did, but I never touched it before. Thanks.