Mercedes-Benz S-Class 2020 Owner's Manual page 267

264 Driving and parking
and make sure there is sufficient clear‐
ance.
If a vehicle is detected in the monitoring range,
the red warning lamp lights up in the corre‐
sponding outside mirror.
If a vehicle occupant pulls the door handle on
the side of the warning, a warning tone sounds
twice and the ambient lighting in the respective
door and the warning lamps in the correspond‐
ing outside mirror flash red.
Vehicles with MBUX Interior Assistant: the
visual warning begins as soon as the hand of a
vehicle occupant moves in to the area of the
door.
% Vehicles with ambient lighting or active
ambient lighting: theWarning assistance
the ambient lighting can be activated and
deactivated ( page 173).
/
% The warning assistance can differ depending
on the equipment and may vary according to
the setting.
The exit warning is only available when Active
Blind Spot Assist is activated and up to a maxi‐
mum of three minutes after the ignition has
been switched off. The exit warning is no longer
available once the warning lamp in the outside
mirror flashes three times.
The exit warning is only an aid and not a substi‐
tute for the attention of vehicle occupants. The
responsibility for opening and closing the doors
and for leaving the vehicle remains with the vehi‐
cle occupants.
System limits
Active Blind Spot Assist may be limited in the fol‐
lowing situations, in particular:
if there is dirt on the sensors or the sensors
R
are obscured
in poor visibility, e.g. due to fog, heavy rain or
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snow
of
if there are narrow vehicles, e.g. bicycles or
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motorbikes
if the road has very wide or narrow lanes
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if vehicles are not driving in the middle of
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their lane
Warnings may be issued in error when driving
close to crash barriers or similar continuous lane
borders. Always make sure that there is suffi‐
cient distance to the side for other traffic or
obstacles.
Warnings may be interrupted when driving along‐
side long vehicles, for example lorries, for a pro‐
longed time.
Active Blind Spot Assist is not operational when
reverse gear is engaged.
Active Blind Spot Assist is not operational if
transport equipment, for example a trailer or
bicycle rack, is attached to the trailer hitch and
the electrical connection has been correctly
established.
Additionally, the exit warning may be limited in
the following situations:
when the sensors are covered by adjacent
R
vehicles in narrow parking spaces
when people approach the vehicle
R
in the event of stationary or slowly moving
R
objects