Attention Assist - Mercedes-Benz 2012 A-Class Owner's Manual

Vehicle centre point on the yellow guide
:
line at a distance of approximately 1.0 m
from the rear of the vehicle
Trailer drawbar
;
Ball coupling
=
X
Set the height of trailer drawbar ; so that
it is slightly higher than ball coupling =.
X
Position the vehicle centrally in front of
trailer drawbar ;.
Ball coupling
:
Red guide line at a distance of approx-
;
imately 0.25 m from the ball coupling
Trailer drawbar locating aid
=
Trailer drawbar
?
Symbol for the "Coupling up a trailer"
A
function
X
Select symbol A with the Audio/COMAND
controller; see the separate operating
instructions for the audio system/
COMAND Online.
The "Coupling up a trailer" function is selec-
ted. The distance specifications now only
apply to objects that are at the same level
as the ball coupling.
X
Reverse carefully, making sure that trailer
drawbar locating aid = points approx-
imately in the direction of trailer draw-
bar ?.
X
Reverse carefully until trailer drawbar ?
touches red guide line ;.
X
Couple up the trailer (

ATTENTION ASSIST

General notes
ATTENTION ASSIST helps you during long,
monotonous journeys such as on motorways
and trunk roads. It is active in the 80 km/h
to 180 km/h range.
If ATTENTION ASSIST detects typical indica-
tors of fatigue or increasing lapses in con-
centration on the part of the driver, it sug-
gests taking a break.
Important safety notes
ATTENTION ASSIST is only an aid. It cannot
always detect fatigue or lapses in concentra-
tion until too late or not at all. The system is
not a substitute for a well-rested and atten-
tive driver.
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-related parameters, e.g. time of
R
day, 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. if the sur-
R
face is uneven or if there are potholes
if there is a strong side wind
R
Driving systems
Y page 201).
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Z