Attention Assist; Displaying The Attention Level - Mercedes-Benz C-Class Operator's Manual

Driving systems
216

ATTENTION ASSIST

General notes
ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways.
It is active in the 37 mph (60 km/h) to
125 mph (200 km/h) range. If ATTEN-
TION ASSIST detects typical indicators of fati-
gue or increasing lapses in concentration on
the part of the driver, it suggests taking a
break.
Important safety notes
ATTENTION ASSIST is only an aid to the
driver. It might not always recognize fatigue
or increasing inattentiveness in time or fail to
recognize them at all. The system is not a
substitute for a well-rested and attentive
driver.
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
if the length of the journey is less than
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approximately 30 minutes
if the road condition is poor, e.g. if the sur-
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face is uneven or if there are potholes
if there is a strong side wind
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if you have adopted a sporty driving style
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with high cornering speeds or high rates of
acceleration
if you are predominantly driving slower
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than 37 mph (60 km/h) or faster than
125 mph (200 km/h)
if you are driving with the active Steer
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Assist of DISTRONIC PLUS
if the time has been set incorrectly
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in active driving situations, such as when
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you change lanes or change your speed
ATTENTION ASSIST is reset when you con-
tinue your journey and starts assessing your
tiredness again if:
you switch off the engine.
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you take off your seat belt and open the
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driver's door, e.g. for a change of drivers or
to take a break.

Displaying the attention level

You can have current status information dis-
played in the assistance menu (
of the on-board computer.
Select the Assistance display for Attention
X
Assist using the on-board computer
( page 243).
Y
The following information is displayed:
length of the journey since the last break.
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the attention level determined by ATTEN-
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TION ASSIST (Attention Level Attention
played in a bar display in five levels from
high to low.
If ATTENTION ASSIST is unable to calculate
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the attention level and cannot output a
warning, the System Suspended System
appears. The bar display then changes the
display, e.g. if you are driving at a speed
below 37 mph (60 km/h) or above 124 mph
(200 km/h).
page 244)
Y
Level), dis-
Suspended message