Originally Posted by raceyBMW
I am pretty sure that symbol is a warning of the wear sensor being worn down...not sure if you can tell if its front or rear unfortunately with that warning. Just take a flashlight and shine it through the wheels and see what your brake pad thicknesses look like, that will probably lead you to which one is worn more.
Could be a bad sensor, but check the pad thicknesses first.
Good call, I'll pop it up on the lift after work and have a look at the pads. It might actually be time for front pads