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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 it
if the time has been set incorrectly
R
in active driving situations, such as when
R
you change lanes or change your speed
ATTENTION ASSIST is only an aid. It may not
always detect fatigue or lapses in concentra-
tion until too late, or may not detect them at
all. The system is not a substitute for a well-
rested and attentive driver.
Warning and display messages in the
multifunction display
Activate ATTENTION ASSIST using the on-
X
board computer (
Y
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: Take a break!
Attention Assist: Take a break!
message appears in the multifunction dis-
play.
If necessary, take a break.
X
Press the a or % button to confirm
X
the message.
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 increasing lapses in concentra-
tion, you will be warned again after
15 minutes at the earliest.
page 238).
ATTENTION ASSIST is reset and starts
assessing your tiredness again when you con-
tinue your journey 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
When ATTENTION ASSIST is deactivated, the
é symbol appears in the multifunction
display in the assistance graphic display.
Speed Limit Assist
General notes
Speed Limit Assist detects the traffic signs
with camera : attached at the top of the
windscreen.
i
Speed Limit Assist is not operational in all
countries.
Speed Limit Assist shows you detected speed
limits in the multifunction display. Data from
the navigation system is also used for this
purpose. The display appears if Speed Limit
Assist detects a traffic sign indicating a speed
limit or the end of a speed limit. If Speed Limit
Assist does not detect any traffic signs, the
speed limit from the digital road map is taken
and shown in the display.
Important safety notes
Speed Limit Assist is only an aid and does not
always detect traffic signs specifying the
maximum permissible speed. Traffic signs
Driving systems
215
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