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If no vehicle is detected in the adjacent lane and
a lane change is permitted, the lane change
begins. This is shown to the driver with a green
arrow 2 next to the steering wheel symbol.
The Lane Change to the Left message also
appears, for example. If Active Lane Change
Assist has been activated with the turn signal
indicator but a lane change is not immediately
possible, a gray arrow
1 appears next to the
steering wheel symbol, which remains green.
When the lane change assistance starts, the turn
signal indicator is automatically activated beside
the display in the multifunction display.
If the assistance graphic is shown when chang‐
ing lanes, the lane change display appear s with
an additional arrow pointing towards the adja‐
cent lane (
/ page 193).
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 traff ic conditions and steer
and/or brake if necessary.
System limitations
The system limitations of Active Steering Assist
apply to Active Lane Change Assist
(/ page 189).
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 is malfunctioning.
192
Driving and parking
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