Mercedes-Benz E-Class 2009 Owner's Manual page 148

Warning and display messages in the
multi-function display
Example: vehicles with automatic transmission*
Activate ATTENTION ASSIST with the on-
X
board computer (
Y
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.
If necessary, take a break.
X
Press a to confirm the message.
X
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 fatigue or increasing inattentive-
ness, you will see a warning again after
15 minutes at the earliest.
ATTENTION ASSIST is reset when you con-
tinue your journey and starts judging your
tiredness anew if:
you switch off the engine.
R
you take off your seat belt and open the
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driver's door, e.g. for a change of drivers or
to take a break.
Speed Limit Assist*
i
Speed Limit Assist is not operational in all
countries.
Speed Limit Assist, in conjunction with your
navigation system*, shows you speed limits
it has detected in the multi-function display.
* optional
page 116).
The display appears when traffic signs stating
the speed limit have been detected.
Example
Traffic sign symbol showing the speed
:
limit
End of speed limit zone
;
i
Sign ; indicating the end of a speed limit
zone is detected, but is not shown in the
multi-function display.
Speed Limit Assist detects these signs with a
camera at the top of the windscreen.
Speed Limit Assist camera
:
G
Risk of accident
Speed Limit Assist is only an aid and may
detect speed limit signs incorrectly or not at
all.
The system may be impaired or may not func-
tion if:
there is poor visibility, e.g. due to snow,
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rain, fog or spray.
there is glare, e.g. from the sun or from
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oncoming traffic.
Driving systems
145
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