Mercedes-Benz S-Class Owner's Manual page 248

246 Driving and parking
Function of Active Lane Change Assist
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The availability of the following function is
country-dependent.
Active Lane Change Assist supports the driver
when changing lanes by applying steering torque
if the driver operates a turn signal.
Assistance when changing lanes is provided if all
the following conditions are met:
You are driving on a motorway or road with
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multiple lanes in the direction of travel.
The neighbouring lane is separated by a bro‐
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ken lane marking.
No vehicle is detected in the adjacent lane.
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The driven speed is between 80 km/h and
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180 km/h.
Active Lane Change Assist is switched on in
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the multimedia system.
Active Steering Assist is switched on and
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active.
If no vehicle is detected in the adjacent lane and
a lane change is permitted, the steering wheel
symbol and the arrow are shown in green
The Lane change to the left message appears,
for example. If Active Lane Change Assist has
been activated with the turn signal indicator but
a lane change is not immediately possible, the
steering wheel symbol remains green and the
arrow appears grey 1. When the lane change
support starts, the turn signal indicator is auto‐
matically activated.
If a lane change is not possible, the arrow fades
out after a few seconds and a new lane change
must be initiated. An immediate lane change is
only possible on motorway sections without
speed limits.
If the system is impaired, Active Lane Change
Assist may be cancelled. If it is cancelled, the
Lane change cancelled message appears in the
multifunction display and a warning tone sounds.
& WARNING Risk of accident from chang‐
ing lane to an occupied adjacent lane
Lane Change Assist cannot always detect
clearly if the adjacent lane is free.
The lane change might be initiated although
2 .
the adjacent lane is not free.
Before changing lanes, make sure that
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the neighbouring lane is free and there
is no danger to other road users.
Monitor the lane change.
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