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 sub-
stitute 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
approximately 30 minutes
R
if the road condition is poor, e.g. if the sur-
face 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
acceleration
R
if you are predominantly driving slower than
37 mph (60 km/h) or faster than 125 mph
(200 km/h)
R
if the time has been set incorrectly
R
in active driving situations, such as when
you change lanes or change your speed
ATTENTION ASSIST is reset when you continue
your journey and starts assessing your tired-
ness again if:
R
you switch off the engine
R
you take off your seat belt and open the
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 (
Y
page 196)
of the on-board computer.
X
Select the Assistance display for Attention
Assist using the on-board computer
(
Y
page 197).
The following information is displayed:
R
The length of the journey since the last
break.
R
The
Attention Level
Attention Level
determined by
ATTENTION ASSIST, displayed in a bar dis-
play in five levels from high to low.
R
If ATTENTION ASSIST is unable to calculate
the attention level and cannot output a
warning, the
System Suspended
System Suspended
message
appears. The bar display then changes the
display, such as when you are driving at a
speed below 37 mph (60 km/h) or above
125 mph (200 km/h).
Activating ATTENTION ASSIST
X
Activate ATTENTION ASSIST using the on-
board computer (
Y
page 198).
The system determines the attention level of
the driver depending on the setting selec-
ted:
Standard
Standard
selected: the sensitivity with which
the system determines the attention level is
set to normal.
Sensitive
Sensitive
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 deactiva-
ted, it is automatically reactivated after the
engine has been stopped. The sensitivity
selected corresponds to the last selection acti-
vated (standard/sensitive).
Warning in the multifunction display
If fatigue or increasing lapses in concentration
are detected, a warning appears in the multi-
function display:
ATTENTION ASSIST
ATTENTION ASSIST Take a
Take a
Break!
Break!
.
In addition to the message shown in the multi-
function display, you will then hear a warning
tone.
X
If necessary, take a break.
X
Confirm the message by pressing the
a
button on the steering wheel.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
184
Driving systems
Driving
and
pa
rk
ing