The concept
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:
2012 BMW 3 Series: Up Close
Of all BMW's cars, the 3 Series is the one that somehow escaped being hit by
the Chris Bangle ugly stick, so I didn't go to the redesigned compact sedan's
North American debut looking for sweet re ...
On-demand control of ancillary units saves energy
Intelligent energy management in the new BMW 3-Series is further enhanced by
the ancillary units, which consume significantly less energy compared with
conventional systems. Examples include the o ...
Technical data
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 avai ...
