See also:

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. ...

Switching off automatically
The system switches off and the LED goes out: ▷ After approx. 165 ft/50 m when driving forward. ▷ After approx. 22 mph/35 km/h when driving forward. Switch on the system again if nece ...

Switching on automatically
With the engine running or the ignition switched on, shift the selector lever into position R. ...