Attention Assist - Mercedes-Benz C-Class Coupe Operator's Manual

Driving systems
176

ATTENTION ASSIST

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
substitute for a well-rested and attentive
driver.
ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways.
It is active in the range between 50 mph
(80 km/h) and 112 mph (180 km/h).
If ATTENTION ASSIST detects typical
indicators of fatigue or increasing lapses in
concentration on the part of the driver, it
suggests you take a break.
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 details, e.g. time of day and length
R
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. if the
R
surface is uneven or if 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 50 mph (80 km/h) or faster than
112 mph (180 km/h)
if you are currently using COMAND 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
Activate ATTENTION ASSIST using the on-
X
board computer (
If ATTENTION ASSIST is active, you will be
warned no sooner than 20 minutes after your
journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist: Drowsiness
detected message appears in the
multifunction display.
If necessary, take a break.
X
Press the a button to confirm the
X
message.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break, you will be warned again
after 15 minutes at the earliest. The
precondition for this is that
ATTENTION ASSIST still detects typical
indicators of fatigue or increasing lapses in
concentration.
ATTENTION ASSIST is reset when you
continue 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.
The assistance graphic shows the é
symbol when ATTENTION ASSIST is
deactivated ( page 197).
Y
Lane Tracking package
General notes
The Lane Tracking package consists of Blind
Spot Assist ( page 177) and Lane Keeping
Y
Assist ( page 178).
Y
I n f o r m a t i o n P r o v i d e d b y :
page 198).
Y