Monitoring area
In particular, the detection of obstacles can be
impaired if:
R
there is dirt on the sensors or anything else
covering the sensors
R
there is poor visibility, e.g. due to fog, heavy
rain, snow or spray
R
there are narrow vehicles, e.g. motorcycles or
bicycles
R
the road has very wide lanes
R
the road has narrow lanes
R
you are not driving in the middle of the lane
R
there are barriers or other road boundaries
Vehicles in the monitoring range are then not
indicated.
At a distance of around 1.6 ft (0.5 m)
;
from the
vehicle, Blind Spot Assist monitors the area up
to 10 ft (3 m) next to
=
and behind
:
your
vehicle, as shown in the picture.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may be
indicated, especially if the vehicles are not driv-
ing in the middle of their lane. This may be the
case if there are vehicles driving at the inner
edge of their lanes.
Due to the nature of the system:
R
warnings may be issued in error when driving
close to crash barriers or similar solid lane
borders
R
warnings may be interrupted when driving
alongside long vehicles, such as trucks, for a
prolonged time
Warning lamp
:
Warning lamp
Blind Spot Assist is not active at speeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp
:
on the correspond-
ing side lights up red. This warning is always
emitted when a vehicle enters the blind spot
monitoring range from behind or from the side.
When you overtake a vehicle, the warning only
occurs if the difference in speed is less than
7 mph (12 km/h).
If you select the reverse gear, Blind Spot Assist
is not operational.
The brightness of the warning lamps is auto-
matically adapted to the brightness of the sur-
roundings.
Collision warning
If a vehicle is detected in the monitoring range of
Blind Spot Assist and you switch on the corre-
sponding turn signal, a double warning tone
sounds. The red warning lamp flashes on the
relevant exterior mirror. If the turn signal
remains on, detected vehicles are indicated by
the flashing of the red warning lamp on the exte-
rior mirror. There are no further warning tones.
Switching on Blind Spot Assist
X
Make sure that Blind Spot Assist is activated
in the on-board computer (
Y
page 203).
X
Turn the SmartKey to position
2
in the igni-
tion lock.
The red warning lamps on the exterior mirrors
light up until the engine is started.
182
Driving systems
Drivi
ng
and
parking
Summary of Contents for C-CLASS CABRIOLET
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