Mercedes-Benz C-Class Operator's Manual page 189

COMAND. You can select a service station
and navigation to this service station will then
begin. This function can be activated and
deactivated in COMAND.
Traffic Sign Assist
General notes
Traffic Sign Assist displays the maximum
speed permitted to the driver in the instru-
ment cluster. The data and general traffic reg-
ulations stored in the navigation system are
used to determine the current speed limit.
Traffic Sign Assist is a map-based system,
and thus, traffic signs put up temporarily (e.g.
near roadworks) are not detected.
If a traffic sign that is relevant to your vehicle
is passed, the display of the speed limits is
updated.
Traffic signs with a restriction indicated by an
additional sign (e.g. in wet conditions) are
also shown.
The traffic signs are only displayed with the
restrictions if:
the regulation must be observed with the
R
restriction, or
Traffic Sign Assist is unable to determine
R
whether the restriction applies
If Traffic Sign Assist is unable to determine a
maximum permitted speed from any of the
available sources, no speed limit is displayed
in the instrument cluster either.
Driving systems
Traffic Sign Assist is not available in all coun-
tries. In this case, symbol : is shown in the
assistance graphic display (
Important safety notes
Traffic Sign Assist is only an aid and is not
always able to correctly display speed limits.
Traffic signs always have priority over the
Traffic Sign Assist display.
The system may be either functionally
impaired or temporarily unavailable if the
information in the digital street map of the
navigation system is incorrect or out of date.
Instrument cluster display
Displaying the assistance graphic
Call up the assistance graphics display
X
function using the on-board computer
( page 205).
Y
Select the Traffic Sign Assist display.
X
Detected traffic signs are displayed in the
instrument cluster.
Speed limit with unknown restriction
Maximum permitted speed
:
Maximum permitted speed for vehicles
;
for which the restriction in the additional
sign is relevant
Additional sign for unknown restriction
=
A maximum permitted speed of 80 mph
(80 km/h) and a speed limit of 60 km/h
(60 mph) with an unknown restriction apply.
187
page 205).
Y
Z