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Active Steering Assist
Function of Active Steering Assist
Active Steering Assist is country-dependent and
only available for vehicles with the Driving Assis‐
tance Package.
Active Steering Assist is operational at speeds
up to 130 mph (210 km/h) and helps you to stay
in the center of the lane by means of moderate
steering interventions. It uses the vehicle in front
and the lane markings as a reference depending
on the driven speed.
When the system is actively steering, the è
symbol is shown in green in the multifunction
display.
Steering and touch detection
The driver is required to keep their hands on the
steering wheel at all times and to be able to
intervene at any time. The driver must expect a
change from active to passive mode or vice
versa at any time.
If the system reaches a system limitation or the
driver has not steered the vehicle for a consider‐
able period of time or has removed their hands
from the steering wheel, the system will,
depending on the situation, first alert the driver
with a visual warning. Display
1 appears in the
multifunction display. If the driver still does not
steer the vehicle, or has still not taken hold of
the steering wheel, a repeated warning tone
sounds in addition to the visual warning mes‐
sage to remind the driver to take control of the
vehicle.
The warning message does not appear or disap‐
pears if one of the following conditions are met:
R
The driver steers the vehicle.
R
The driver presses a steering wheel button or
operates Touch Control.
Active Steering Assist is only an aid. The driver is
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good time
and for staying in lane. Before changing lanes,
the driver must make sure that the neighboring
lane is free (glance over the shoulder).
System limitations
Active Steering Assist has a limited steering tor‐
que for lateral guidance. In some cases, the
steering intervention is not sufficient to keep the
vehicle in the lane.
If the detection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches to passive mode. The system provides
no support in this case. During the transition
from the active to passive status, the è sym‐
bol is shown as enlarged and flashes yellow.
Once the system is passive the è symbol is
grayed out in the multifunction display.
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Driving and parking
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