Important safety notes
ATTENTION ASSIST is only an aid. The system
may not always detect fatigue or lapses in con-
centration until too late, or may not detect them
at all. ATTENTION ASSIST 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 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 and starts assessing
your attention again when you continue your
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
For vehicles with steering wheel buttons you can
have the current ATTENTION ASSIST (Attention
Level) assessment displayed.
X
Select
Status overview
in the
Assist.
menu and display the attention level
(
Y
page 236).
The following information is displayed:
R
the length of the journey since the last break
R
the attention level determined by ATTENTION
ASSIST, displayed in a bar display in five levels
from low to high
R
if ATTENTION ASSIST is unable to calculate
the attention level and cannot output a warn-
ing, the
System passive
message appears in
the display. The bar display is then dimmed.
This is the case, for example, if you are pre-
dominantly driving at a speed below 60 km/h
or above 200 km/h
Activating ATTENTION ASSIST
X
Activate ATTENTION ASSIST with the on-
board computer:
R
on vehicles without steering wheel buttons
(
Y
page 226)
R
on vehicles with steering wheel buttons
(
Y
page 237)
For vehicles with steering wheel buttons, the
system determines the attention level of the
driver depending on the setting selected:
Standard: the sensitivity with which the sys-
tem determines the attention level is set to
normal.
Sensitive: the sensitivity is set higher. The
driver is warned earlier.
When ATTENTION ASSIST is switched on and
the vehicle engine is running:
R
on vehicles without steering wheel buttons,
the
À
indicator lamp in the instrument
cluster lights up
R
on vehicles with steering-wheel buttons, the
display shows the
À
symbol:
-
in the status area
-
in the
Status overview
of the
Assist.
menu (
Y
page 236)
For vehicles with steering wheel buttons, if you
deactivate ATTENTION ASSIST, the system is
automatically re-activated when you start the
engine. The system sensitivity then corresponds
to the last selection activated – standard or sen-
sitive.
If you switch off ATTENTION ASSIST in a vehicle
without steering wheel buttons, the system
remains switched off even after you start the
engine. The status of the system after switching
on the engine always corresponds to the status
last selected.
200
Driving systems
Driving and parking
