BMW ABS / ASC+T / DSC / DXC Brain - Used The ABS/ASC+T brain is a silver box that controls the ABS system or ABS/ASC+T system for those cars with the ASC+T option.
ABS- Anti Lock Brakes
ASC-Anti Skid Conntrol
ASC+T-Anti Skid Control plus Traction Control
BMW ABS / ASC+T / DSC / DXC Pump Unit - Used This is the hydro unit for the brake system. Usually located on the drivers side fire wall, it has multiple brake lines going in and coming out.
For cars 1999 and up it will be the control module and the hydro together unless otherwise noted in the part description.