Shaking and braking go hand-in-hand when salt saturated brake rotors start looking like the surface of the moon, caliper pistons seize in their bores, and brake hardware turns to an oxidized powder.
The BMW system is based on L-Jetronic and has been used for about eight years. Now on Audi and Volkswagon both have systems they call Motronic that are based on KE-Jetronic.