If Traffic Sign Assist is unable to determine a
maximum permitted speed from any of the avail-
able sources, no speed limit is displayed in the
instrument cluster either.
Traffic Sign Assist is not available in all coun-
tries. In this case, display
:
is shown in the
multifunction display.
Important safety notes
Traffic Sign Assist is only an aid and is not always
able to correctly display speed limits and over-
taking restrictions. Traffic signs always have pri-
ority over the Traffic Sign Assist display.
The system may be either functionally impaired
or temporarily unavailable in the following sit-
uations:
R
Visibility is poor, e.g. due to snow, rain, fog or
spray
R
Glare, e.g. from the sun being low in the sky
R
Dirt, ice or misting on the windscreen in the
vicinity of the camera
R
Traffic signs are hard to detect (dirt, ice,
snow)
R
Traffic signs are insufficiently lit at night
R
Signs are ambiguous (e.g. traffic signs on con-
struction sites or in adjacent lanes)
R
Information in the digital street map of the
navigation system is incorrect or out of date
Activating Traffic Sign Assist
If you have activated the Traffic Sign Assist dis-
play in the on-board computer, the traffic regu-
lations (speed limits and overtaking restrictions)
are displayed in the instrument cluster for five
seconds in each case. The wrong-way warning
and the traffic sign display for speed limits and
overtaking restrictions remain active in the
assistance graphic even when the display has
been deactivated.
X
Activate the Traffic Sign Assist display using
the on-board computer (
Y
page 226).
Instrument cluster display
Speed limit with unknown restriction
i
The following illustrations are examples of
vehicles with colour multifunction display.
The illustrations of vehicles with black and
white multifunction display differ from them.
i
The unit for the speed limit (km/h or mph)
depends on the country in which you are driv-
ing. It is generally shown neither on the traffic
sign nor in the instrument cluster but must be
taken into account when observing the max-
imum permitted speed.
:
Maximum permissible speed
;
Maximum permissible speed for vehicles for
which the restriction in the additional sign is
relevant
=
Additional sign for unknown restriction
A maximum permissible speed of 80 km/h
(80 mph) and a speed limit of 60 km/h (60 mph)
with an unknown restriction apply.
208
Driving systems
Driving
and
parking
