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:
Tire inflation pressure values up to100 mph/160 km/h
X3 28i
X3 35i
...
Folding forward the center head
restraint
Before using the center seat, fold the center
head restraint forward.
Press the button, arrow 1, and fold the head restraint
forward. ...
Front airbags
Front airbags help protect the driver and front
passenger by responding to frontal impacts in
which safety belts alone cannot provide adequate
restraint. ...
