The concept
If the vehicle is equipped with Active Cruise Control with Stop & Go, the collision warning is controlled via the cruise control radar sensor.
The system issues a two-phase warning of a danger of collision at speeds above approx.
10 mph/15 km/h. The time of these warnings may vary depending on the current driving situation.
The collision warning is available even if cruise control has been deactivated.

It responds to stationary or moving objects that are within the detection range of the radar system.
When the vehicle is intentionally brought into contact with a vehicle, the collision warning is delayed to avoid false warnings.
See also:
General information
The iDrive functions can be stored on the programmable
memory buttons and called up directly,
e.g., radio stations, navigation destinations,
phone numbers and entry points into the
menu.
The ...
General information
The sound settings are stored for the remote
control currently in use. ...
Releasing
With the ignition switched on:
Automatic transmission: Press
the switch
while the brake is pressed or transmission
position P is engaged.
The LED and indicator lamp go out.
The parking bra ...
