Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 204

Ball coupling
:
Red guide line at a distance of approx-
;
imately 0.30 m from the ball coupling
Trailer drawbar marker assistant
=
Trailer drawbar
?
Symbol for the "Coupling up a trailer"
A
function
Select symbol A using the COMAND con-
X
troller, see 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.
Reverse carefully, making sure that trailer
X
drawbar marker assistant = points
approximately in the direction of trailer
drawbar ?.
Reverse carefully until the trailer draw-
X
bar ? reaches red guide line ;.
Couple up the trailer (
X
ATTENTION ASSIST
Important safety 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.
page 215).
Y
G
WARNING
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 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
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 Online
R
or making a telephone call with COMAND
Online
if the time has been set incorrectly
R
in active driving situations, such as when
R
you change lanes or change your speed
Driving systems
201
Z