Check Brake Linings
 

Ok... Two BMW service departments have confirmed there's nothing wrong with my brakes, nor anything wrong with brake sensors. Yet, the light/indicator remains.

Any ideas????

Sensors have been known to fail, have you tried replacing them?

Try and reset it. Also make sure the sensors didn't become loose. They may not be broken, but could have come loose.................Phil

Are you on BMW brake pads or aftermarket. I have a set of Axxis pads on, and I know that the sensors move around in there and gives me a false signal sometimes.