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:
Signal tones
When approaching an object, an intermittent
tone is sounded that indicates the position of the
object. For example, if an object is detected to
the left rear of the vehicle, a signal tone sounds ...
Adjusting volume
Turn the volume knob during the spoken instruction to select the desired volume.
> The volume remains the same, even if the volume of other audio sources is changed.
> The volume is stored for ...
The BMW X3 xDrive35i: Class leading performance and efficiency.
The new top model BMW X3 xDrive35i features BMW's newest turbocharged
3.0-liter inline-6 "N55" engine combining direct fuel injection, twin-scroll
turbo technology and Valvetronic. The N ...
