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:
High-beam Assistant
When the lights are switched on, this system
automatically switches the high beams on and
off. The procedure is controlled by a sensor on the front of the interior
rearview mirror. The assistant ...
5 Series in the Market
The things that trouble me about the 5 Series — high price, fewer standard
features than some competing models — are things that sort themselves out. If
BMW is asking too much for too little, cons ...
Starting Roadside Assistance with
BMW Assist or TeleService
General information
In vehicles equipped with TeleService, support
is first offered by TeleService Diagnosis and
then, if necessary, by TeleService Help.
1. "BMW Assist" or "Conne ...
