See also:

Indicator/warning lamps
The indicator lamp flashes: DSC controls the drive forces and brake forces. The indicator lamp lights up: DSC has failed. ...

Switching on automatically
Select transmission position R with the engine running. The images from Top View and PDC are displayed when the system has been switched on using iDrive. ...

Adaptive brake assistant
In combination with the Active Cruise Control, this system ensures that the brakes respond even more rapidly when braking in critical situations. Refer also to Collision warning ...