Setting Active Brake Assist
Requirements:
The ignition is switched on
Multimedia system:
The following settings are available:
Early
Medium
Late
Select a setting.
The Medium setting is selected automatically every time the engine is started.
Deactivating Active Brake Assist
It is recommended that Active Brake Assist is always left activated.
Select Off.
The distance warning function and autonomous braking function are deactivated.
When Active Brake Assist is deactivated, the 
symbol appears in the status area of the multifunction display.