Mercedes-Benz C-Class Saloon Owner's Manual page 255

when the engine is re-started. The last selected
sensitivity level remains stored.
System limitations
ATTENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
The functionality of ATTENTION ASSIST is
restricted, and warnings may be delayed or not
occur at all in the following situations:
If you have been driving for less than 30
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minutes.
If the road condition is poor (uneven road
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surface or potholes).
If there is a strong side wind.
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If you adopt a sporty driving style (high cor‐
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nering speeds or high rates of acceleration).
If the Steering Assist function of Active Dis‐
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tance Assist DISTRONIC is active.
If the time has been set incorrectly.
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In active driving situations, if you change
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lanes and vary your speed frequently.
The ATTENTION ASSIST tiredness or alertness
assessment is deleted and restarted when con‐
tinuing the journey in the following situations:
If you switch off the engine.
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If you unfasten your seat belt and open the
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driver's door (e.g. changing drivers or taking
a break).
Setting ATTENTION ASSIST
Multimedia system:
Vehicle k Assistance
, .
TION ASSIST
Setting options
Select Standard, Sensitive or Off.
#
Suggesting a rest area
Select Suggest rest area.
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Activate O or deactivate the function ª.
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If ATTENTION ASSIST detects fatigue or
increasing lack of attention, it suggests a
rest area in the vicinity.
Select a suggested rest area: you are gui‐
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ded to the selected rest area.
Blind Spot Assist and Active Blind Spot
Assist with exit warning
Function of Blind Spot Assist and Active
Blind Spot Assist with exit warning
Blind Spot Assist and Active Blind Spot Assist
use two lateral, rear-facing radar sensors to
monitor the area up to 40 m behind your vehicle
and 3 m directly next to your vehicle.
If a vehicle is detected at speeds above approx‐
imately 12 km/h and this vehicle subsequently
ATTEN-
.
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 the side of your
vehicle, the red warning lamp in the outside mir‐
ror flashes. If you switch on the turn signal indi‐
cator in the corresponding direction, a warning
tone sounds once. 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.
Driving and parking 253