Mercedes-Benz S-Class 2011, Operator'S Manual

Page: 350 / 524

recognize dangers too late which could result
in an accident and serious injury to you and/
or others.
ATTENTION ASSIST assesses your level of
fatigue or lapses in concentration by taking
the following criteria into account:
R
your personal driving style, e.g. steering
characteristics
R
driving conditions, e.g. time, driving time
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
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
acceleration
R
if you are predominantly driving slower
than 50 mph (80 km/h) or faster than
112 mph (180 km/h)
R
if you are currently operating or making a
call using COMAND
R
if the time has been set incorrectly
R
in active driving situations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction display
X
Activate ATTENTION ASSIST using the on-
board computer (
Y
page 376).
Symbol
:
appears in the multifunction
display.
If ATTENTION ASSIST is active, it will not warn
you until at least 20 minutes after your
journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist Time for a break?
message appears in the multifunction
display.
X
If necessary, take a break.
X
Press
a
to confirm the message.
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
still detects fatigue or increasing lapses in
concentration, you will be warned again after
15 minutes at the earliest.
ATTENTION ASSIST is reset when you
continue your journey, and it starts assessing
your tiredness 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.
Night View Assist Plus
Important safety notes
In addition to the illumination provided by the
normal headlamps, Night View Assist Plus
uses infrared light to illuminate the road. A
camera at the top of the windshield picks up
the infrared light and displays a black-and-
white image in the multifunction display. The
image shown in the multifunction display
corresponds to a road lit up by high-beam
headlamps. This enables you to see the road's
course and any obstacles in good time. If
pedestrian recognition is activated,
pedestrians recognized by the system are
highlighted in the Night View Assist Plus
display.
G
Warning
Night View Assist Plus is only an aid designed
to assist driving. It is not a substitute for
attentive driving. Do not rely solely on the
Night View Assist Plus display. Continue to
look through the windshield. You are
responsible for safety and must drive in
348
Driving systems
Driving and parking