BMW 4 Series Owner's Manual page 107

Warning stages
Symbol Measure
The vehicle lights up red: prewarn‐
ing.
Increase distance.
The vehicle flashes red and an
acoustic signal sounds: acute warn‐
ing.
You are requested to intervene by
braking or making an evasive ma‐
neuver.
Adapting your speed and driving style
The display does not relieve the driver of
the responsibility to adapt his or her driving
speed and style to the traffic conditions.◀
System limits
Be alert
Due to system limitations, warnings may
be not be issued at all, or may be issued late or
improperly. Therefore, always be alert and
ready to intervene; otherwise, there is the dan‐
ger of an accident occurring.◀
Detection range
The system's detection capabilities are limited.
This may result in the warning not being is‐
sued or being issued late.
For example, the following situations may not
be detected:
▷ Slow moving vehicles when you approach
them at high speed.
▷ Vehicles that suddenly swerve in front of
you or sharply decelerating vehicles.
▷ Vehicles with an unusual rear appearance.
▷ Two-wheeled vehicles ahead of you.
▷ Pedestrians.
Online Edition for Part no. 0140 2 909 827 - VI/13
Safety
Functional limitations
The system may not be fully functional in the
following situations:
▷ In heavy fog, rain, sprayed water or snow‐
fall.
▷ In tight curves.
▷ If the driving stability control systems are
limited or deactivated, for example, DSC
OFF.
▷ If the camera in the mirror or the radar sen‐
sor is dirty or obscured.
▷ During calibration of the camera immedi‐
ately after vehicle shipment.
▷ If there is constant dimming because of
oncoming light, for example, from the sun
low in the sky.
Prewarning sensitivity
Depending on the set prewarning time, this
may result in increased false warnings.
Pedestrian warning with city
braking function
The concept
The system can help to prevent accidents with
pedestrians.
The system issues a warning in the city driving
speed area if there is imminent danger of a col‐
lision with pedestrians and includes a braking
function.
The system is controlled via the camera in the
base of the interior mirror.
General information
The system issues a warning with brightness
staring at approx. 6 mph/10 km/h to approx.
35 mph/60 km/h regarding a possible risk of
collision with pedestrians and assists with a
brake intervention shortly before a collision.
Controls
107