Mercedes-Benz S-Class Coupe 2018 Operator's Manual page 172

170 Driving and parking
If indicator lamp 1 is off: press button 2.
#
Function of Active Lane Change Assist
% The availability of the following function is
country-dependent.
Active Lane Change Assist supports the driver
when changing lanes, by applying steering tor‐
que.
Assistance when changing lanes is provided if all
the following conditions are met:
You are driving on a highway or road with
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multiple lanes in the direction of travel.
The neighboring 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 50 mph
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(80 km/h) and 110 mph (180 km/h).
Active Lane Change Assist is activated by the
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driver with the turn signal indicator.
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 gray 1. When the lane change
support starts, the turn signal indicator is auto‐
matically activated. If a lane change is not possi‐
ble, the arrow fades out after a short period and
a new lane change must be initiated. An immedi‐
ate lane change is only possible on highway sec‐
tions without speed limits.
2 .