Speed Limit Assist - Mercedes-Benz 2013 CLA Owner's Manual

Driving systems
196
if you have adopted a sporty driving style
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with high cornering speeds or high rates of
acceleration
if you are predominantly driving slower
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than 80 km/h or faster than 180 km/h
if you are currently using COMAND Online
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or making a telephone call with COMAND
Online
if the time has been set incorrectly
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in active driving situations, such as when
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you change lanes or change your speed
Warning and display messages in the
multifunction display
X
Activate ATTENTION ASSIST using the on-
board computer (
The À symbol appears in the assistance
display ( Y page 217).
If ATTENTION ASSIST is active, it will not
warn you until at least 20 minutes after
your journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist: Take a break!
message appears in the multifunction dis-
play.
X
If necessary, take a break.
X
Press the a button to confirm the mes-
sage.
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. This will only
happen if ATTENTION ASSIST still detects
typical indicators of fatigue or increasing lap-
ses in concentration.
ATTENTION ASSIST is reset and starts
assessing your tiredness again when you con-
tinue your journey if:
you switch off the engine
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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
Y page 218).

Speed Limit Assist

General notes
Speed Limit Assist shows you detected speed
limits in the multifunction display. Data from
the navigation system is also used for this
purpose. If a traffic sign indicating a speed
limit or the end of a speed limit is detected,
it is shown in the multifunction display. 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.
Speed Limit Assist detects the traffic signs
with a camera attached behind the top of the
windscreen.
Speed Limit Assist camera
:
Important safety notes
Speed Limit Assist is only an aid and does not
always detect traffic signs specifying the
maximum permissible speed. Traffic signs
always have priority over the Speed Limit
Assist display.
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
the windscreen is dirty, misted up or cov-
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ered, for instance by a sticker, in the vicinity
of the camera
the traffic signs are covered, for instance
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by dirt, snow or trees