BMW 2 Series Owner's Handbook Manual page 185

System limits
General
Follow the limits of the system in the chapter
"Collision warning systems".
Upper speed limit
The system is temporarily disabled at speeds
over approx. 250 km/h, 155 mph.
The system is activated again at speeds under
approx. 250 km/h, approx. 155 mph.
Warning displays
Depending on the selected setting for warn-
ings, for example the warning time, it is pos-
sible that more or fewer warnings will be
displayed. As a result, there may also be an in-
creased number of premature warnings about
critical situations.
Functional limitations
The system may have restricted functionality
in situations such as the following:
▷ The speed of the approaching vehicle is
much faster than your own speed.
▷ In tight corners or on narrow roads.
▷ The bumper is dirty, iced up or covered,
for instance by stickers.
A Check Control message may be displayed
if functionality is restricted. Depending on the
national-market version, a yellow icon is also
illuminated.
The system is inactive when the trailer socket
is occupied or when the trailer operation is
activated, for example, when operating with a
trailer or bicycle carrier. A Check Control mes-
sage is shown.
Online Edition for Part no. 01405A5E758 - VI/22
Safety
Rear Collision Prevention
Principle
Depending on vehicle equipment and national-
market version, Rear Collision Prevention can
respond to vehicles approaching from behind.
General
Radar sensors monitor the area behind the ve-
hicle.
If a vehicle is approaching from behind at a
relevant speed, the system can respond as fol-
lows:
▷ The hazard warning lights are switched on
if appropriate.
▷ PreCrash functions are triggered if appro-
priate.
Safety information
Follow the safety information in the Chapter
"Collision warning systems".
Sensors
The system is controlled via the radar sensors
at the side in the rear.
Switching Rear Collision Prevention
on/off
The system is automatically activated at the
start of each journey.
The system is deactivated in the following sit-
uations:
CONTROLS
185