Mercedes-Benz E-Class Sedan Operator's Manual page 195

Activating or deactivating the warning when
a speed limit is exceeded
The point at which a warning is given once a
speed is exceeded (warning threshold) can be
set according to individual preferences.
Select
#
Select ,
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Setting a speed
Select .
#
Set the desired speed.
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Blind Spot Assist and Active Blind Spot
Assist
Function of Blind Spot Assist and Active
Blind Spot Assist
Blind Spot Assist uses two lateral, rear-facing
radar sensors to monitor the area up to 130 ft
(40 m) behind your vehicle and 10 ft (3 m)
directly next to your vehicle.
If a vehicle is detected at speeds above approx‐
imately 8 mph (12 km/h) and this vehicle subse‐
quently enters the monitoring range directly next
to your vehicle, the warning lamp in the outside
mirror lights up red.
If a vehicle is detected close to your vehicle in
the lateral monitoring range and you switch on
the turn signal indicator in the corresponding
. direction, a warning tone sounds once. The red
warning lamp in the outside mirror flashes. If the
or .
turn signal indicator remains on, all other detec‐
ted 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.
Driving and parking 193
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 detection capability of Blind Spot Assist can
be restricted in the following situations:
If the sensors are dirty or obscured.
R
When there is poor visibility, e.g. due to fog,
R
heavy rain, snow or spray.
If narrow vehicles are within the monitoring
R
range, e.g. bicycles.
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 period.
Blind Spot Assist is not operational when reverse
gear is engaged.