BMW 3 SERIES 2018 Owners Manual

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.
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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.'

Overview
Button
in
the
vehicle
DSC OFF button
Indicator/warning
lights The indicator light flashes: DSC conj
trols the drive and braking forces.
The indicator light lights up: DSC has
malfunctioned.
Deactivating
DSC:
DSC
OFF
General
information When DSC is deactivated, driving stability is
reduced during acceleration and when driving in curves.
To increase vehicle stability, activate DSC again as soon as possible.
Deactivating
DSC Press and hold this button but not lonjger than approx. 10 seconds, until the
indicator light for DSC OFF lights up in the inj
strument cluster and displays DSC OFF.
DSC is switched off.
The steering and, depending on the equipj
ment, suspension are tuned for sporty driving.
Activating
DSC Press button.
DSC OFF and the DSC OFF indicator light go
out.
Indicator/warning
lights When DSC is deactivated, DSC OFF is disjplayed in the instrument cluster.
The indicator light lights up: DSC is dej
activated.
DTC
Dynamic
Traction
Control
Concept
DTC is a version of the DSC Dynamic Stability Control where forward momentum is optij mized.
The system ensures maximum headway on
special road conditions or loose road surfaces,
for instance unplowed snowy roads, but with
somewhat limited driving stability.
When DTC is activated, the vehicle has maxij
mum traction. Driving stability is limited during
acceleration and when driving in curves.
Drive carefully.
You may find it useful to briefly activate DTC under the following special circumstances:'yWhen driving in slush or on uncleared,
snow-covered roads.'yWhen freeing vehicle from deep snow or driving off from loose ground.'yWhen driving with snow chains.
Deactivating/activating
DTC
Dynamic
Traction
Control
Activating
DTC Press button.
TRACTION is displayed in the instruj
ment cluster and the indicator light for DSC OFF lights up.
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Deactivating
DTCPress button again.
TRACTION and the DSC OFF indicaj
tor light go out.
xDrive xDrive is the all-wheel-drive system of your vej
hicle. Concerted action by the xDrive and DSC
Dynamic Stability Control further optimizes
traction and driving dynamics. The xDrive all-
wheel-drive system variably distributes the
drive forces to the front and rear axles as dej
manded by the driving situation and road surj
face.
Dynamic
Damping
Control
Concept
This system reduces undesirable vehicle moj tion when using a dynamic driving style or travj
eling on uneven road surfaces.
This enhances the driving dynamics and drivj
ing comfort depending on the road surface
condition and driving style.
ProgramsThe system offers several different programs.
The programs can be selected via Driving Dyj namics Control.
SPORT Consistently sporty control of the shock abj
sorbers for greater driving agility.
SPORT+ Consistently sporty control of the shock abj
sorbers for greater driving agility when driving with limited driving stabilization.COMFORT/ECO
PRO
Balanced control of the vehicle.
Variable
sport
steering The support offered by the variable sport
steering changes according to the angle by
which the steering wheel has been turned and
the speed.
So, for instance the steering angle of the front wheels is made larger when parking or taking
tight corners. This makes it easier to drive
around bends.
Furthermore, the system provides the steering with more support at low speeds than at higher ones. This makes it easier to park, for instance,and makes steering more direct when drivingat faster speeds.
By taking the angle by which the steering wheel has been turned and the speed into acjcount, a sporty steering response adapted tothe particular driving situation can be achieved.
Driving
Dynamics
Control Concept
The Driving Dynamics Control helps to fine-
tune the vehicle's settings and features. Varij ous programs can be selected for this purpose.
The Driving Dynamics Control and the DSC OFF buttons can each be used to activate a
program.Seite 154ControlsDriving
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Overview
Button
in
the
vehicle
Operating
the
programs
ButtonProgramDSC OFF
TRACTIONSPORT+
SPORT
COMFORT
ECO PRO
Automatic
program
change
The system may automatically switch to COMj
FORT in the following situations:
'yFailure of Dynamic Damping Control.'yFailure of DSC Dynamic Stability Control.'yThe vehicle has a flat tire.'yWhen activating cruise control in TRACj
TION or DSC OFF mode.
DSC
OFF
When DSC OFF, refer to page 153, is active,
driving stability is limited during acceleration
and when driving in curves.
TRACTION When TRACTION is active, the vehicle has
maximum traction on loose road surfaces. DTC
Dynamic Traction Control, refer to page 153, is
activated. Driving stability is limited during acj
celeration and when driving in curves.
SPORT+
Concept
Sporty driving with optimized chassis and susj pension and adjusted drivetrain with limited
driving stabilization.
General
information Dynamic Traction Control is switched on.
The driver handles several of the stabilizationtasks.
Activating
SPORT+ Press button repeatedly until SPORT+appears in the instrument cluster and
the DSC OFF indicator light lights up.
Automatic
program
change When activating cruise control, the program
automatically switches to SPORT mode.
Indicator/warning
lights
SPORT+ is displayed in the instrument cluster.
The DSC OFF indicator light is illumij
nated: Dynamic Traction Control DTC
is activated.
SPORT
Concept
Depending on the equipment, consistently
sporty tuning of the suspension, steering, and drivetrain for greater driving agility with maxij
mum driving stabilization.
The program can be configured to individual
specifications. The configuration is stored for
the driver profile currently in use.Seite 155Driving
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Activating
SPORTPress button repeatedly until SPORT
is displayed in the instrument cluster.
Configuring
SPORT Via iDrive:1."My Vehicle"2."Vehicle settings"3.If necessary, "Driving mode"4."Configure SPORT"5.Select the desired setting.
The setting is stored for the driver profile curj
rently used.
COMFORT
Concept
For a balanced tuning with maximum driving
stabilization.
Activating
COMFORT Press button repeatedly until COMj
FORT is displayed in the instrument
cluster.
In certain situations, the system automatically
changes to the NORMAL program, automatic
program change, refer to page 155.
ECO
PRO
Concept
ECO PRO provides consistent tuning to minij
mize fuel consumption for maximum range with maximum driving stabilization.
Comfort functions and the engine Controller
are adjusted.
The program can be configured to individual specifications.
Activating
ECO
PRO
Press button repeatedly until ECO
PRO is displayed in the instrument
cluster.
Configuring
ECO
PRO
Via iDrive:1."My Vehicle"2."Vehicle settings"3.If necessary, "Driving mode"4."Configure ECO PRO"5.Select the desired setting.
The setting is stored for the driver profile curj
rently used.
Configuring
driving
program Settings can be made for the following driving
programs in Driving mode:
'ySPORT, refer to page 155.'yECO PRO, refer to page 217.
Displays
Program
selection Pressing the button displays a
list of the selectable programs.
Depending on your vehicle's opj
tional features, the list in the inj
strument cluster can differ from
the illustration shown.
Selected
program The instrument cluster displaysthe selected program.
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Drive-off
assistantConcept
This system supports driving off on uphill grades. The parking brake is not required.
Driving
off
with
the
drive-off
assistant1.Hold the vehicle in place with the foot
brake.2.Release the foot brake and drive off withj
out delay.
After the foot brake is released, the vehicle is held in place for approx. 2 seconds.
Depending on the vehicle load or when a trailer is used, the vehicle may roll back slightly.
Servotronic Concept
Servotronic is a speed-dependent power steering function.
The system provides the steering force with
more support at low speeds than at higher ones. This makes it easier to park, for instance,and makes steering more direct when drivingat faster speeds.
Furthermore, the steering force adapts accordj ing to the driving program, so that a direct,sporty feel or a comfortable steering responseis conveyed.
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Driving
comfortVehicle
features
and
options
This 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.
Active
Cruise
Control
with
Stop
&
Go
function
ACC
Concept
Using this system, a desired speed and a disj
tance to a vehicle ahead can be adjusted using
the buttons on the steering wheel.
The system maintains the desired speed on clear roads. For this purpose, the vehicle acj
celerates or brakes automatically.
If a vehicle is driving ahead of you, the system
adjusts the speed of your vehicle so that the
set distance to the vehicle ahead is mainj
tained. The speed is adjusted as far as the
given situation allows.
The distance can be adjusted in several steps.
For safety reasons, it depends on the respecj tive speed.
If the vehicle ahead of you brakes to a halt, and
then proceeds to drive again within a brief pej
riod, the system is able to detect this within the given system limits.
General
information Depending on the driving settings, the featuresof the cruise control can change in certain
areas.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 canjnot independently react to all traffic situations.
There is a risk of an accident. Adjust driving style to traffic conditions. Watch traffic closelyand actively intervene where appropriate.'

There is a risk of injuries or danger to life.Watch traffic closely and actively intervenewhere appropriate.'

Interrupting
automaticallyThe system is automatically interrupted in thefollowing situations:'yWhen the driver applies the brakes.'yWhen selector lever position D is disenj
gaged.'yDynamic Traction Control DTC is activated
or DSC Dynamic Stability Control is deactij vated.'yIf DSC Dynamic Stability Control interj
venes.'yWhen SPORT+ is activated with Driving
Dynamics Control.'yIf the safety belt is unbuckled and the drivj
er's door is opened while the vehicle is standing still.'yIf the system has not detected objects for
an extended period, for instance on a road
with very little traffic without curb or
shoulder markings.'yIf the detection range of the radar is imj paired, for instance by dirt or heavy fog.'yAfter a stationary period of approx. 3 secj
onds when the vehicle has been braked to
a stop by the system.
Setting
the
speed
Maintaining/storing
the
speed
Press the rocker switch while the system is inj terrupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
The stored speed is displayed in the speedomj
eter and briefly in the instrument cluster, refer
to page 161.
DSC Dynamic Stability Control is switched on,
if necessary.
The speed can also be stored bypressing a button.
Press button.
Changing
the
speed
Press the rocker switch up or down repeatedly
until the desired speed is set.
If active, the displayed speed is stored and the vehicle reaches the stored speed when the
road is clear.
'yEach time the rocker switch is pressed to
the point of resistance, the desired speed increases or decreases by approx.
1 mph/1 km/h.'yEach time the rocker switch is pressed
past the resistance point, the desired
speed changes by a maximum of 5 mph/
10 km/h.
Hold the rocker switch in position to repeat the action.
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