See also:

Malfunction
In the event of a failure or malfunction of the parking brake, secure the vehicle against rolling using a wheel chock, for example, when leaving it. ...

Antilock Brake System ABS
ABS prevents locking of the wheels during braking. The vehicle remains steerable even during full brake applications, thus increasing active safety. ABS is operational every time you start the ...

xDrive
xDrive is the all-wheel-drive system of your vehicle. Concerted action by the xDrive and DSC further optimize traction and driving dynamics. The xDrive all-wheel-drive system variably distributes ...