Mercedes-Benz S-Class 2020 Operator's Manual page 259

the turn signal indicator in the corresponding
direction, a warning tone sounds once. The red
warning lamp in the outside mirror flashes. If the
turn signal indicator remains switched on, all
other detected vehicles are indicated only by the
flashing of the red warning lamp.
If you overtake a vehicle quickly, no warning is
given.
& WARNING Risk of accident despite Blind
Spot Assist
Blind Spot Assist does not react to vehicles
approaching and overtaking you at a greatly
different speed.
As a result, Blind Spot Assist cannot warn
drivers in this situation.
Always pay careful attention to the traf‐
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fic situation and maintain a safe dis‐
tance at the side of the vehicle.
Blind Spot Assist and Active Blind Spot Assist
are only aids. They may fail to detect some vehi‐
cles and are no substitute for attentive driving.
Always ensure that there is sufficient distance to
the side for other road users and obstacles.
System limitations
The system may be limited in the following situa‐
tions:
The sensors are dirty or covered.
R
Poor visibility, e.g. due to fog, heavy rain,
R
snow or spray.
Narrow vehicles, e.g. bicycles, are within the
R
monitoring range.
Warnings may be issued in error when driving
close to crash barriers or similar solid lane bor‐
ders. Warnings may be interrupted when driving
alongside long vehicles, for example trucks, for a
prolonged time.
Blind Spot Assist is not operational when reverse
gear is engaged.
Function of brake application (Active Blind
Spot Assist)
% The brake application function is only availa‐
ble for vehicles with a Driving Assistance
Package.
Driving and parking 257
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.
Always steer, brake or accelerate your‐
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self, especially if Active Blind Spot
Assist warns you or makes a course-
correcting brake application.
Always maintain a safe distance at the
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sides.