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EnglishCONTROLS -> Driving stability control systems for your BMW 7 Series 2015-2021
Driving stability control systems
CONTROLS
Driving stability control systems
Vehicle features and
options
Adaptive brake assistant
In combination with Active Cruise Control, this
system ensures that the brakes respond even
more rapidly when braking in critical situations.
This chapter describes all standard, country-spe‐
cific and optional features offered with the series.
It also describes features and functions that are
not necessarily available in your vehicle, e.g., due
to the selected options or country versions. This
also applies to safety-related functions and sys‐
tems. When using these functions and systems,
the applicable laws and regulations must be ob‐
served.
Drive-off assistant
Concept
This system supports driving off on uphill grades.
Driving off
1. Hold the vehicle in place with the foot brake.
Anti-lock Braking System
ABS
2. Release the foot brake and drive off without
delay.
After the foot brake is released, the vehicle is
held in place for approx. 2 seconds.
ABS prevents locking of the wheels during brak‐
ing.
Depending on the vehicle loading or when a
trailer is used, the vehicle may roll back slightly.
The vehicle maintains its steering power even
during full brake applications, thus increasing ac‐
tive safety.
ABS is operational every time you start the en‐
gine.
DSC Dynamic Stability
Control
Brake assistant
Concept
Within the physical limits, the system helps to
keep the vehicle on a steady course by reducing
engine speed and by braking the individual
wheels.
When you apply the brakes rapidly, this system
automatically boosts the vehicle braking capabil‐
ity to the furthest possible extent. It reduces the
braking distance to a minimum during an emer‐
gency stop. This system utilizes all of the capa‐
bilities provided by the Antilock Brake System
ABS.
General information
DSC detects the following unstable driving con‐
ditions, for instance:
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.
▷ Fishtailing, which can lead to oversteering.
▷ Loss of traction of the front wheels, which
can lead to understeering.
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Driving stability control systems
CONTROLS
Safety information
Deactivating/activating DSC
General information
Warning
When DSC is deactivated, driving stability is re‐
duced during acceleration and when driving in
curves.
The system cannot serve as a substitute for the
driver’s personal judgment in assessing the
traffic conditions. Based on the limits of the
system, it cannot independently react to all traf‐
fic situations. There is a risk of accident. Adjust
driving style to traffic conditions. Watch traffic
closely and actively intervene where appropri‐
ate.
To increase vehicle stability, activate DSC again
as soon as possible.
Deactivating DSC
Hold the button down until DSC OFF is
displayed in the instrument cluster and
the DSC OFF indicator light is illuminated.
Warning
When driving with a roof load, for instance with
roof-mounted luggage rack, the vehicle's cen‐
ter of gravity is higher, which increases the risk
of the vehicle tipping in critical driving situa‐
tions. There may be a risk of accident or risk of
damage to property. Do not deactivate DSC
Dynamic Stability Control when driving with
roof load.
Activating DSC
Press the button.
DSC OFF and the DSC OFF indicator
light go out.
Display
In the instrument cluster
Overview
When DSC is deactivated, DSC OFF is displayed
in the instrument cluster.
Button in the vehicle
Indicator/warning lights
The indicator light lights up: DSC is de‐
activated.
The indicator light flashes: DSC controls
the drive and braking forces.
The indicator light lights up: DSC has
malfunctioned.
DSC OFF
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Driving stability control systems
CONTROLS
Activating/deactivating DTC
DTC Dynamic Traction
Control
Activating DTC
Press the button.
Concept
DTC is a version of the DSC Dynamic Stability
Control where forward momentum is optimized.
TRACTION is displayed in the instru‐
ment cluster and the indicator light for DSC OFF
lights up.
The system ensures maximum headway on spe‐
cial road conditions or loose road surfaces, for in‐
stance unplowed snowy roads, but with some‐
what limited driving stability.
Deactivating DTC
Press the button again.
TRACTION and the DSC OFF indicator
light go out.
General information
When DTC is activated, the vehicle has maxi‐
mum traction. Driving stability is limited during
acceleration and when driving in curves.
Display
You may find it useful to briefly activate DTC in
the following situations:
Display in the instrument cluster
If DTC is activated, TRACTION is displayed in
the instrument cluster.
▷ When driving in slush or on uncleared, snow-
covered roads.
▷ When driving off from deep snow or loose
ground.
Indicator/warning lights
The indicator light lights up: DTC is acti‐
vated.
▷ When driving with snow chains.
Overview
Automatic program change
Button in the vehicle
In certain situations, the DSC is activated auto‐
matically:
▷ If Active Cruise Control with Stop&Go func‐
tion ACC is activated.
▷ On a braking intervention by the Intelligent
Safety systems.
▷ The vehicle has a flat tire.
xDrive
DSC OFF
Concept
xDrive is the all-wheel-drive system of the vehi‐
cle. The interaction of xDrive and other suspen‐
sion control systems, such as DSC Dynamic Sta‐
bility Control, further optimizes traction and
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Driving stability control systems
CONTROLS
driving dynamics. xDrive variably distributes the
driving forces to the front and rear axles as de‐
manded by the driving situation and road surface.
Using snow chains
In order to guarantee free running of the wheels
when operating with snow chains, rear axle
steering of the integral active steering must be
switched off when snow chains are mounted.
Integral Active Steering
Set operation with snow chains, refer to
page 343.
Concept
The Integral Active Steering increases the ma‐
neuverability and makes a more direct steering
response possible.
Malfunction
In the event of a malfunction, the steering wheel
must be turned further, while the vehicle re‐
sponds more sensitively to steering wheel move‐
ments in the higher speed range.
General information
Integral Active Steering is a combination of varia‐
ble steering ratio and rear axle steering.
The stability-enhancing intervention may be de‐
activated.
The variable steering ratio amplifies the steering
angle when maneuvering, thus making the steer‐
ing more direct. The rear axle steering acts to in‐
crease maneuverability at low speeds by turning
the rear wheels slightly in the opposite direction
to the front wheels.
Proceed cautiously and drive defensively.
Have the system checked by a dealer's service
center or another qualified service center or re‐
pair shop.
At higher speeds, the rear wheels are turned in
the same direction as the front wheels. This re‐
sults in, for instance better directional stability
and a more harmonious change of direction.
In critical driving situations, the Integral Active
Steering can stabilize the vehicle through pur‐
poseful steering of the rear wheels before the
driver intervenes, for instance in case of over‐
steering.
Tuning
The system offers several different tunings.
Driving mode
Integral Active Steering
COMFORT
ECO PRO
comfortable, for optimal
travel comfort
SPORT
dynamic, for greater agility
The different tunings are assigned to the differ‐
ent driving modes of the Driving Dynamics Con‐
trol, refer to page 135.
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