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:
Note
If equipped with Business mobile phone preparation
equipment package or without mobile
phone preparation. ...
Going & Stopping
The twin-turbo 3.0-liter inline-six-cylinder that powers the X6 xDrive35i is
the same engine that impressed us in the 335i and 135i, and it shows itself to
be a capable SUV engine, too.
Even tho ...
Capacities
...
