2018 BMW 3 SERIES Owners Manual

'yCentral area, arrow 1, directly in front of thevehicle.'yExpanded area, arrow 2, to the right and
left of the central area.
A collision is imminent if pedestrians are loj
cated within the central area. A warning is isj
sued about pedestrians who are located within the extended area only if they are moving inthe direction of the central area.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess visibility and trafj fic situation. There is a risk of an accident. Adjjust driving style to traffic conditions. Watchtraffic closely and actively intervene where apj
propriate.'

Warning
with
braking
function
Display
If a collision with a person detected in this way
is imminent, a warning symbol appears on the
instrument cluster and in the Head-up Display.
The red symbol is displayed and a sigj
nal sounds.
With instrument display: the red symj
bol is displayed and a signal sounds.
Intervene immediately by braking or make an
evasive maneuver.
Braking
intervention
The warning prompts the driver to react. Durj
ing a warning, the maximum braking force is used. Prerequisite for the brake booster is sufj
ficiently quick and hard stepping on the brake
pedal. If there is a risk of collision, the system may assist with braking.When the vehicle is
traveling at a low speed, the vehicle may come
to a complete stop.
Manual transmission: during a braking interj
vention up to a complete stop, the engine may
be shut down.
The braking intervention occurs only if vehicle stability has not been restricted, for instance by deactivating the DSC Dynamic StabilityControl.
The driver may cancel the braking intervention by stepping on the accelerator pedal or by acj tively moving the steering wheel.
Object detection can be restricted. Follow the
limitations of the detection range and funcj tional restrictions.System
limits
Safety
information WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the system limits. There is a risk of accidents or
risk of damage to property. Follow the informaj
tion regarding the system limits and actively
intervene, if needed.'

'yWhen it is dark outside.
Lane
departure
warningConcept
The lane departure warning alerts when the vehicle on roads with lane markings is about to
leave the lane.
General
information Depending on the country version, the system
issues a warning at speeds between
35 mph/55 km/h and 45 mph/70 km/h.
When switching on the system below this
speed, a message is displayed in the instruj ment cluster.
Warnings are issued by means of a steering
wheel vibration. The time of the warning may
vary depending on the current driving situaj tion.
The system does not provide a warning if the turn signal is set before leaving the lane.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess road and traffic
safety. There is a risk of an accident. Adjust
driving style to traffic conditions. Watch traffic
closely and actively intervene where approprij
ate. Do not jerk the steering wheel in response
to a warning.'

Display
in
the
instrument
display'ySymbol orange: system is actij
vated.'yGreen symbol: at least one lane
marking was detected and warnj
ings can be issued.
Issued
warning
If
you
leave
the
lane
If you leave the lane and if a lane marking has
been detected, the steering wheel vibrates.
If the turn signal is set before changing the lane, a warning is not issued.
End
of
warningThe warning is canceled in the following situaj
tions:
'yAutomatically after approx. 3 seconds.'yWhen returning to your own lane.'yWhen braking hard.'yWhen using the turn signal.
System
limits
Safety
information WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the system limits. There is a risk of accidents or
risk of damage to property. Follow the informaj
tion regarding the system limits and actively
intervene, if needed.'

Before you change lanes after setting the turn
signal, the system issues a warning in the sitj
uations described above.
The light in the exterior mirror housing flashes
and the steering wheel vibrates.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess visibility and trafj fic situation. There is a risk of an accident. Adjjust driving style to traffic conditions. Watchtraffic closely and actively intervene where apj
propriate.'

and the light in the exterior mirror housing
flashes brightly.
The warning stops when the turn signal is switched off, or the other vehicle leaves the
critical zone.
Brief
flashing
A brief flashing of the light during vehicle unj locking serves as system self-test.
System
limits
Safety
information WARNING
The system can react not at all, too late,
incorrectly, or without justification due to the system limits. There is a risk of accidents or
risk of damage to property. Follow the informaj
tion regarding the system limits and actively intervene, if needed.'

This procedure takes the following criteria into
account:'yPersonal driving style, for instance steering behavior.'yDriving conditions, for instance length of
trip.
Starting at approximately 43 mph/70 km/h, the
system is active and can display a recommenj dation to take a break.
Break
recommendation
If the driver becomes less alert or fatigued, a
message is displayed in the Control Display
with the recommendation to take a break.
A recommendation to take a break is displayed
only once during an uninterrupted trip.
After a break, another recommendation to take
a break cannot be displayed until after approxij
mately 45 minutes.
System
limits
The function may be limited in the following
situations, for instance and will either output an
incorrect warning or no warning at all:
'yWhen the clock is set incorrectly.'yWhen the vehicle speed is mainly below about 43 mph/70 km/h.'yWith a sporty driving style, such as duringrapid acceleration or when cornering fast.'yIn active driving situations, such as when
changing lanes frequently.'yWhen the road surface is poor.'yIn the event of strong side winds.
The system is reset approx. 45 minutes after
parking the vehicle, for instance in the case of a break during longer trips on highways.
Seite 151SafetyControls151
Online Edition for Part no. 01402984107 - X/17

Driving
stability
control
systemsVehicle
features
and
optionsThis chapter describes all standard, country-specific and optional features offered with theseries. It also describes features that are notnecessarily available in your vehicle, e. g., due
to the selected options or country versions.
This also applies to safety-related functions
and systems. When using these functions and systems, the applicable laws and regulations
must be observed.
Anti-lock
Braking
System
ABS
ABS prevents locking of the wheels during
braking.
The vehicle maintains its steering power even during full brake applications, thus increasing
active safety.
ABS is operational every time you start the enj gine.
Brake
assistant When you apply the brakes rapidly, this systemautomatically produces the greatest possible
braking force boost. It reduces the braking disj
tance to a minimum during emergency stop.
This system utilizes all of the benefits provided
by the Antilock Brake System ABS.
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.DSC
Dynamic
Stability
Control
Concept
Within the physical limits, the system helps to
keep the vehicle on a steady course by reducj
ing engine speed and by applying brakes to
the individual wheels.
General
information
DSC detects the following unstable driving conditions, for instance:'yFishtailing, which can lead to oversteering.'yLoss of traction of the front wheels, which
can lead to understeering.
Dynamic Traction Control DTC, refer to
page 153, is a version of the DSC where forj
ward momentum is optimized.
Safety
information WARNING
The system does not relieve from perj
sonal responsibility to assess the traffic situaj tion. Based on the limits of the system, it canj
not independently react to all traffic situations.
There is a risk of an accident. Adjust driving
style to traffic conditions. Watch traffic closely
and actively intervene where appropriate.'