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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 2 .
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
suppor t starts, the turn signal indicator is auto‐
matically activated.
If the assistance graphic is active when you
change lanes, an arrow also appears pointing
towards the adjacent lane in the assistance
graphic (
→ page 187).
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 freeway sections without speed
limits.
If the system is impaired, Active Lane Change
Assist may be canceled. If it is canceled, the
Lane Change Canceled 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
the adjacent lane is not free.
#
Before changing lanes, make sure that
the neighboring lane is free and there is
no danger to other road users.
#
Monitor the lane change.
&
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 torques.
#
Always monitor the lane change and
keep your hands on the steering wheel.
Observe the traffic conditions and steer
and/or brake if necessary.
System limitations
The system limitations of Active Steering Assist
apply to Active Lane Change Assist
(→ page 183).
The system may also be impaired or may not
function in the following situations:
R
The sensors in the rear bumper are dirty,
damaged or covered, for instance by a
sticker or ice and snow.
R
The exterior lighting shows a malfunction.
Activating/deactivating Active Lane Change
Assist
Multimedia system:
,
Vehicle
.
k Assistance
#
Select Lane Change Assist.
#
Activate O or deactivate ª the function.
Function of Active Emergency Stop Assist
If the driver continues to ignore the warning to
put their hands on the steering wheel, Active
186
Driving and parking
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