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The driver is required to keep their hands on
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the steering wheel at all times and be able to
intervene at any time to correct the course of
the vehicle and keep it in lane.
The status of Active Steering Assist is dis‐
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played in the status bar of the multifunction
display.
Steering and contact 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
multifunction display. If the driver still does not
steer the vehicle themself, or still has not taken
hold of the steering wheel, a repeated warning
tone sounds in addition to the visual warning
message 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:
The driver steers the vehicle.
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The driver presses a steering wheel button or
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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 neighbouring
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 or to drive past exits. Active
1
appears in the
Steering Assist cannot provide the driver with
steering assistance at roundabouts, T-junctions,
junctions, toll stations or turns, for example.
The system may be impaired or may not function
in the following instances:
In snow, rain, fog, heavy spray, if there is
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glare, direct sunlight, greatly varying light
conditions, reflections or strong shadows on
the carriageway.
Insufficient road illumination.
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The windscreen in the area of the camera is
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dirty, misted up, damaged or covered.
Absence of lane markings, or several unclear
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lane markings, or if the markings change rap‐
idly.
The distance to the vehicle in front is too
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small and the lane markings thus cannot be
detected.
The carriageway is narrow and winding.
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Driving and parking 183
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