Integral Active Steering
Principle
The Integral Active Steering increases the ma-
neuverability of the vehicle and makes a more
direct steering response possible. Driving sta-
bility is also increased at high speeds.
General information
Integral Active Steering combines the variable
steering gear ratio of the front axle with active
rear-wheel steering.
The rear axle steering acts to increase maneu-
verability 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. For
instance, this results in a harmonious lane
change.
In critical driving situations, integral active
steering can stabilize the vehicle by automat-
ically steering the rear wheels, for example e.g.
when oversteering.
Setting
The system offers several different settings.
Using the settings in M setup, you can set the
system to comfortable or dynamic.
Additional information:
M Setup, refer to page 209.
Using snow chains
In order to guarantee free movement of the
wheels when operating with snow chains, rear
axle steering must be turned off when snow
chains are mounted.
Additional information:
Rear axle steering during operation with snow
chains, refer to page 349.
Malfunction
The warning light on the instrument
cluster illuminates.
A Check Control message is displayed.
The steering system may not be operational.
Integral Active Steering assistance may no lon-
ger be provided.
▷ Larger steering movements are required at
low speeds.
▷ The response of the vehicle is more sensi-
tive in higher speed ranges.
▷ Proceed cautiously and practice anticipa-
tory driving.
Have the vehicle checked by an authorized
service center or another qualified service cen-
ter or repair shop.
Seite 220
CONTROLS
Driving stability control systems
220
Online Edition for Part no. 01405A8A608 - VI/23
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