The concept
If the vehicle does not include Active Cruise Control with Stop & Go, the collision warning is controlled via the camera in the base of the interior rearview mirror.
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.

In the process, vehicles in a similar direction of movement are observed if they are located within the detection range of the system.
When the vehicle is intentionally brought into contact with a vehicle, the collision warning is delayed to avoid false warnings.
See also:
Compact Design
Just as BMW's compact 3 Series ranks below the midsize 5 Series, the
five-seat X3 sits in the shadow of the larger X5. The styling clearly says BMW,
but it's the multi-paneled look of earlier mode ...
Important features in the engine compartment
1 Vehicle identification number*
2 Jump starting, negative terminal
3 Washer fluid reservoir
4 Jump starting, positive terminal
5 Oil filler neck. 760i/Li: filler neck is located
under a flap. ...
Switching off automatically
The system switches off and the LED goes out:
▷ After approx. 33 ft/10 m when driving forward.
▷ After approx. 9 mph/15 km/h when driving
forward.
Switch on the system again if necess ...
