Mercedes-Benz B-Class hatchback 2022 Owner's Manual page 262

& WARNING Risk of accident despite exit
warning
The exit warning neither reacts to stationary
objects nor to persons or road users
approaching you at a greatly differing speed.
The exit warning cannot warn drivers in these
situations.
Always pay particular attention to the
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traffic situation when opening the doors
and make sure there is sufficient clear-
ance.
If there is a vehicle in the monitoring range, this is
indicated in the outside mirror. If a vehicle occu-
pant opens the door on the side with the warning,
a warning tone sounds and the warning lamp in
the outside mirror starts to flash.
This additional function is only available when
Blind Spot Assist is active. When the exit warning
is activated, it can warn vehicle occupants for up
to three minutes after switching the vehicle 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
Blind Spot Assist and Active Blind Spot Assist may
be limited in the following situations, in particular:
if there is dirt on the sensors or the sensors
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are obscured
in poor visibility, e.g. due to fog, heavy rain or
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snow
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 their
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lane
Warnings may be issued in error when driving
close to crash barriers or similar continuous lane
borders. Always make sure that there is sufficient
distance to the side for other traffic or obstacles.
Driving and parking 259
Warnings may be interrupted when driving along-
side long vehicles, for example lorries, for a pro-
longed time.
Blind Spot Assist is not operational when reverse
gear is engaged.
Blind Spot Assist and the exit warning are not
operational when a trailer is coupled to the vehi-
cle and the electrical connection has been cor-
rectly established.
The exit warning may be limited in the following
situations:
when the sensors are covered by adjacent
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vehicles in narrow parking spaces
when people approach the vehicle
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in the event of stationary or slowly moving
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objects
Function of brake application (Active Blind Spot
Assist)
If Active Blind Spot Assist detects a risk of a side
impact in the monitoring range, a course-correct-
ing brake application is carried out. This is
designed to help you avoid a collision.