You use them by applying the brakes.
is it hard to change brake pads on a 1989 BMW 735i
remove old brake pads, replace with new brake pads voila!
Brake pads
change fronadst brake
Change the brake pads sensors. You must change them after every brake pad swap.
5
it has a chain
The brake pad wear sensor is on the brake pads. On my 318ti, the sensor is on the left side, on the inboard pad.
Brembo are the original fitment EBC brake pads work just as well and are half the price. Sintered pads are required for the front and the original fitment for the rear is non sintered.
your brake pads are worn or there is trouble with the sensor for them.
you have to by a replacement sensor for your front and rear pads.
where is the fuse box in a 1992 BMW 525i