I have a 1989 535i with approx 225k on the clock. It's in pretty decent shape for it's age and miles but I am having a little trouble passing inspection lately. My ABS light comes on intermittently, one day it will be on, the next day it won't. I have recently replaced a rear caliper, rear pads and the brake sensors.
The front pads and calipers are good.
Any input, tips, advice would be welcomed.