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●
Additional sign: If the windscreen wiper is
working while you are driving, the signal with
the additional rain sign will be shown first, on
the left, as it is the one that is applicable at the
time. A sign valid only with restrictions, e.g. no
overtaking at certain times, may be displayed.
The warning sign display is not available in all
countries and the system may not be able to
detect all existing warning signs.
Speed warning
If the system detects that the permitted speed
is exceeded, it may warn the driver with a
"gong" and visually with a message on the dash
panel display.
The speed warning can be set or deactivated
completely in the menu
> Assistants >
Driver alerts > Road sign detection
›››
page 36. The speed warning can be set to
a value of 0, 5 or 10 km/h (0, 3 or 5 mph) above
the permitted speed.
Trailer mode
In vehicles equipped with a towing bracket de-
vice from the factory and a trailer that is elec-
trically connected to the vehicle, it is possible
to activate or deactivate the display of specific
traffic signs for vehicles with trailer, such as
speed limits or overtaking prohibitions.
Driver information
Instrument panel
It can be activated or deactivated in the info-
tainment system using the button
sistants > Driver warnings > Road
sign detection > Consider trailer
›››
page 36.
For trailer mode, the display of speed limits
applicable to the type of trailer or to the le-
gal provisions can be adjusted. The speed is
adjusted in steps of 10 km/h (5 mph) within
the range between 60 and 130 km/h (40 and
80 mph). If it is adjusted to a speed greater
than that which is permitted in the country in
question for driving with a trailer, the system
automatically displays the usual speed limits,
e.g. in Germany 80 km/h (50 mph).
If the speed warning for the trailer is deactiva-
ted, the system displays the speed limits as if
there were no trailer hitched.
No entry sign
The traffic sign recognition system warns
acoustically and visually in the instrument
panel when a no entry sign is crossed on a
one-way road or an entrance to a motorway or
highway.
Limited operation
The traffic sign detection system has certain
limitations. The following cases may lead the
system to operate with limitations or not at all:
●
In the case of poor visibility, e.g. in snow,
rain, fog or intense mist.
> As-
●
In cases of dazzling, e.g. caused by head-on
traffic or by the sun.
●
When driving at high speeds.
●
If the camera is covered or dirty.
●
If the traffic signs are partially or totally ob-
structed, e.g. by trees, snow, dirt or other vehi-
cles.
●
In the case of traffic signs that do not fulfil
the regulations.
●
In the case of damaged or bent traffic signs.
●
In the case of variable messages on over-
head or gantry signs (LED-based variable traffic
signs or other lighting units).
●
If the maps on the navigation system are not
up-to-date.
●
In the case of adhesives affixed to vehicles
that depict traffic signs, e.g. speed limits on
lorries.
WARNING
The technology in the traffic sign detection
system cannot change the limits imposed by
the laws of physics and only works within the
system's limits. Do not let the extra conven-
ience afforded by the traffic sign detection
system tempt you into taking any risks when
driving. The system is not a replacement for
driver awareness.
27
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