Assistance Vehicles without Driving Assistance package: The settings can be made after starting the vehicle.
Vehicles with Driving Assistance package: The settings can be made when the ignition is switched on.
It is recommended that you always leave Active Brake Assist switched on.
Select one of the following settings:
The distance warning function and the autonomous braking function are deactivated.
Vehicles without Driving Assistance package: When the vehicle is next started, the medium setting is automatically selected.
Vehicles with Driving Assistance package: Evasive Steering Assist is not available. When the ignition is next started, the middle setting is selected automatically and Evasive Steering Assist is available.
When Active Brake Assist is deactivated, the 
symbol appears in the assistance graphic in the multifunction display.