General
When driving off on difficult road conditions, for
example, snow or loose ground, the drive-off
support provides the best possible traction. The
function provides maximum drive power with
adapted driving stability in the low speed range.
Activating/deactivating the drive-off
support
1. Press the button.
2. "Drivetrain and chassis"
3. "Drive-off support"
4. "Activate once" or "Deactivate".
The drive-off support remains active until it is de‐
activated or the drive mode is changed.
xDrive
Principle
xDrive is the all-wheel drive system of the vehi‐
cle. Concerted action by the xDrive and and
other suspension control systems, for example,
Dynamic Stability Control, further optimises trac‐
tion and driving dynamics.
General
xDrive distributes the driving power variably to
the front and rear axles according to the driving
situation and road condition.
Efficient4x4 reduces consumption by deploying
all-wheel drive as required.
Servotronic
Principle
Servotronic is a speed-dependent steering assis‐
tance.
The system provides more steering force assis‐
tance at lower speeds than at higher speeds.
This makes it easier to park, for example, and
provides a firmer steering feel when driving at
higher speeds.
In addition, the steering force is adapted accord‐
ing to the drive mode, so that a firm, sporty feel
or a comfortable steering response is conveyed.
Integral Active Steering
Principle
The Integral Active Steering increases the ma‐
noeuvrability of the vehicle and makes a more di‐
rect steering response possible.
General
The Integral Active Steering is a combination of
the variable steering ratio of the front axle and
the rear-wheel steering.
The rear-wheel steering increases manoeuvrabil‐
ity at low speeds by turning the rear wheels
slightly in the opposite direction to the front
wheels.
At higher speeds, the rear wheels are turned in
the same direction as the front wheels. The re‐
sulting benefits include smoother lane changes.
In critical driving situations, for example over‐
steering, Integral Active Steering can stabilise
the vehicle through selective steering of the rear
wheels before the driver intervenes.
Setting
The system offers various settings.
With the drive modes of the My Modes, the sys‐
tem can be set to comfortable or dynamic.
For further information:
My Modes, see page 144.
Seite 225
Driving stability control systems
CONTROLS
225
Online Edition for Part no. 01405A38CB9 - VI/21
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