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:
Units of measure
Setting the units of measure
To set the units for fuel consumption, route/distance
and temperature:
1. "Settings"
2. "Language/Units"
3. Select the desired menu item.
...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
Exterior & Styling
The 2011 5 Series is further proof that BMW is pulling itself out of an
awkward design era. Recently, the only element that had seemed to tie one model
to another was an ill-conceived — and poorly ...
