ATTENTION ASSIST
General notes
ATTENTION ASSIST helps you during long,
monotonous journeys such as on motorways
and trunk roads. It is active in the 60 km/h to
200 km/h speed range. If ATTENTION ASSIST
detects typical indicators of fatigue or increas-
ing lapses in concentration on the part of the
driver, it suggests taking a break.
Important safety notes
ATTENTION ASSIST is only an aid. It may not
always detect fatigue or lapses in concentration
until too late, or may not detect 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:
R
if the length of the journey is less than approx-
imately 30 minutes
R
if the road condition is poor, e.g. if the surface
is uneven or if there are potholes
R
if there is a strong side wind
R
if you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration
R
if you are predominantly driving at a speed
below 60 km/h or above 200 km/h
R
if you are driving with the active Steer Assist
of DISTRONIC PLUS
R
if the time has been set incorrectly
R
in active driving situations, such as when you
change lanes or change your speed
The ATTENTION ASSIST tiredness assessment
is deleted and restarted when continuing the
journey, if:
R
you switch off the engine
R
you take off your seat belt and open the driv-
er'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 (
Y
page 244) of
the on-board computer.
X
Select the assistance graphics display for
ATTENTION ASSIST using the on-board com-
puter (
Y
page 243).
The following information is displayed:
R
the length of the journey since the last break
R
the attention level determined by ATTENTION
ASSIST (
Attention level
Attention level
), displayed in a
bar display in five levels from high to low
R
if ATTENTION ASSIST is unable to calculate
the attention level and cannot issue a warn-
ing, the
System suspended
System suspended
message
appears. The bar display then changes the
display, e.g. if you are driving at a speed below
60 km/h or above 200 km/h.
Activating ATTENTION ASSIST
X
Activate ATTENTION ASSIST using the on-
board computer (
Y
page 246).
The system determines the attention level of
the driver depending on the setting selected:
If
Standard
Standard
is selected: the sensitivity with
which the system determines the attention level
is set to normal.
If
Sensitive
Sensitive
is selected: the sensitivity is set
higher. The attention level detected by ATTEN-
TION ASSIST is adapted accordingly and the
driver is warned earlier.
When ATTENTION ASSIST is deactivated, the
é
symbol appears in the multifunction dis-
play in the assistance graphic display.
When ATTENTION ASSIST has been deactivated,
it is automatically reactivated after the engine
has been switched off. The sensitivity selected
Driving systems
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Driv
ing
and
pa
rki
ng
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