Red guide line
=
, approximately 0.25 m, and
yellow guide line
;
, approximately 1.0 m,
show the approximate distance from the rear
end of the vehicle. Blue line
:
depicts the
width required for the vehicle. It helps you to
position the vehicle at the side of the road,
e.g. at the kerb.
ATTENTION ASSIST
ATTENTION ASSIST helps you on long, monot-
onous journeys such as on motorways and
trunk roads. It is active at speeds between 80
and 180 km/h. If ATTENTION ASSIST detects
tiredness or increasing lapses in concentra-
tion on the part of the driver, it suggests a
break.
G
Risk of accident
ATTENTION ASSIST is only an aid and may
detect your tiredness or lapses in concentra-
tion too late or not at all. It is not a substitute
for a well rested and attentive driver.
Fatigue may cause you to recognise hazard-
ous situations too late, misjudge a situation
or react slower. For this reason, make sure
you feel rested before you begin driving and
during your journey. Always take breaks in
good time and regularly, especially during
long journeys. Otherwise, you may fail to rec-
ognise dangers in time, cause an accident and
injure yourself and others.
ATTENTION ASSIST assesses your level of
fatigue or increasing inattentiveness taking
into consideration the following criteria:
R
personal driving style, e.g. steering charac-
teristics
R
driving conditions, e.g. time, driving time
ATTENTION ASSIST's functionality is restric-
ted and warnings are delayed or do not
appear at all:
R
if the road condition is poor, e.g. large
bumps or potholes
R
there is a strong side wind
R
you have adopted a very sporty driving style
with high cornering speeds or driving with
a high rate of acceleration
R
if you are predominantly driving slower
than 80 km/h or faster than 180 km/h
R
if you are currently operating or making a
call using COMAND
R
in active driving situations, for example, if
you are changing lanes or changing the
vehicle speed
Warning and display messages in the
multi-function display
X
Activate ATTENTION ASSIST with the on-
board computer (
Y
page 240).
Symbol
:
appears in the multi-function
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
warning tone and the
Attention Assist:
Time for a break?
message appears in the
multi-function display.
268
Driving systems
Co
ntro
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