Mercedes-Benz E-Class 2010 Owner's Manual page 185

Driving systems
182
ognise dangers in time, cause an accident and
injure yourself and others.
ATTENTION ASSIST assesses your level of
fatigue or lapses in concentration by taking
the following criteria into account:
your personal driving style, e.g. steering
R
characteristics
journey conditions, e.g. time of day and
R
length of journey
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
if the road condition is poor, e.g. the sur-
R
face is uneven or there are potholes
if there is a strong side wind
R
if you have adopted a sporty driving style
R
with high cornering speeds or high rates of
acceleration
if you are predominantly driving slower
R
than 80 km/h or faster than 180 km/h
if you are currently using COMAND APS or
R
making a telephone call with it
if the time has been set incorrectly
R
in active driving situations, such as when
R
you change lanes or change your speed
Warning and display messages in the
multifunction display
Example: vehicles with automatic transmission
Activate ATTENTION ASSIST using the on-
X
board computer (
Symbol : appears in the multifunction
display.
If ATTENTION ASSIST is active, it will not warn
you until at least 20 minutes after your jour-
ney has begun. You then hear an intermittent
page 203).
Y
warning tone twice and the Attention
Assist: Time for a break? message
appears in the multifunction display.
If necessary, take a break.
X
Press a to confirm the message.
X
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 con-
tinue your journey and starts assessing your
tiredness again if:
you switch off the engine
R
you take off your seat belt and open the
R
driver's door, e.g. for a change of drivers or
to take a break
Speed Limit Assist
Important safety guidelines
i
Speed Limit Assist is not operational in all
countries.
Speed Limit Assist, in conjunction with your
navigation system, shows you speed limits it
has detected in the multifunction display. The
display appears when traffic signs stating the
speed limit have been detected.
Example
Traffic sign symbol showing the speed
:
limit
Traffic sign symbol indicating the end of
;
the speed limit zone
Speed Limit Assist detects these signs with a
camera at the top of the windscreen.