Operation Manual

if ATTENTION ASSIST still detects typical indi-
cators of fatigue or increasing lapses in concen-
tration.
Vehicles with COMAND: if a warning is output
in the multifunction display, a service station
search is performed in the multimedia system.
You can select a service station and navigation
to this service station will then begin. This func-
tion can be activated and deactivated in the
multimedia system.
Traffic Sign Assist
General notes
Traffic Sign Assist displays the maximum speed
permitted to the driver in the instrument cluster.
The data stored in the navigation system and
general traffic regulations are used to determine
the current speed limit.
As Traffic Sign Assist is a map-based system,
traffic signs put up temporarily (e.g. near road-
works) are not detected.
If a traffic sign that is relevant to your vehicle is
passed, the display of the speed limits is upda-
ted.
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:
R
the regulation must be observed with the
restriction, or
R
Traffic Sign Assist is unable to determine
whether the restriction applies
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, symbol : is shown in the
assistance graphic display (
Y page 203).
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incorrect or out of date.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
X
Call up the assistance graphics display func-
tion using the on-board computer
(
Y page 203).
X
Select the Traffic Sign Assist display.
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 100 mph
(100 km/h) and a speed limit of 80 km/h
(80 mph) apply with an unknown restriction.
Speed limits in wet conditions
:
Maximum permitted speed
;
Additional signs for wet conditions
A maximum permitted speed of 80 mph
(80 km/h) applies in wet conditions and if Traffic
186
Driving systems
Driving and parking