Mercedes-Benz C-Class Convertible 2021 Operator's Manual page 180

178 Driving and parking
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
occupant 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 warn‐
ing is activated, it can warn vehicle occupants
for up to three minutes after switching the igni‐
tion 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 par‐
ticular:
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
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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 trucks, for a pro‐
longed time.
Blind Spot Assist is not operational when reverse
gear is engaged.
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-cor‐
recting brake application is carried out. This is
designed to help you avoid a collision.
The course-correcting brake application is availa‐
ble in the speed range between approximately
20 mph (30 km/h) and 125 mph (200 km/h).
& WARNING Risk of accident despite
brake application of Active Blind Spot
Assist
A course-correcting brake application cannot
always prevent a collision.