Mercedes-Benz S-Class 2020 Owner's Manual page 256

play appears along with grey arrows in the driver
display.
If no vehicle or obstacle is detected in the adja‐
cent lane and a lane change is permitted, the
lane change begins after the driver has indicated
briefly. The lane change is shown to the driver
with a flashing green arrow next to the ±
steering wheel symbol. Green arrow
played in the appropriate adjacent lane in the
Assistance menu in the driver display. The
change to the left message, for example, also
appears.
Active Lange Change Assist can be cancelled in
various situations, including the following:
Change in the surrounding conditions (e.g.
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detected obstacle).
The driver removes their hands from the
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steering wheel.
The driver steers with too much force or in
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the opposite direction.
The driver moves the turn signal indicator in
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the opposite direction.
Active Distance Assist DISTRONIC or Active
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Steering Assist is deactivated.
The vehicle cannot make the lane change as
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planned.
Cancellation of Active Lane Change Assist is dis‐
played as follows:
The arrow in the selected direction of travel
1 is dis‐
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turns red.
Lane
A corresponding message appears on the
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driver display.
In certain circumstances a warning tone
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sounds.
& WARNING Risk of accident when chang‐
ing lane to an occupied adjacent lane
Lane Change Assist cannot always clearly
detect if the adjacent lane is free.
The lane change might be initiated although
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.
Driving and parking 253
Monitor the lane change.
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& WARNING Risk of accident if Lane
Change Assist unexpectedly stops func‐
tioning
If the system limitations for Lane Change
Assist have been reached, there is no guar‐
antee that the system will remain active.
Lane Change Assist cannot then assist you
by applying steering torque.
Always monitor the lane change and
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keep your hands on the steering wheel.
Observe the traffic conditions and steer
and/or brake if necessary.
System limits
The system limitations of Active Steering Assist
apply to Active Lane Change Assist
( page 248).
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The system may also be impaired or may not
function in the following situations:
The sensors are damaged, covered or dirty
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( page 231).
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