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Driver assistance systems
Note
●
The tiredness detection function has only
been designed f
or driving on motorways
and wide roads.
●
If there is a fault in the system, refer to a
Specialised workshop to have the system
inspected.
Function and operation
Fig. 277
On the screen of the instrument pan-
el
: f
atigue det
ection.
The tiredness detection function registers the
behaviour of the driv
er at the wheel at the
beginning of a journey and, using this, e
v
alu-
ates the tiredness. This is continually com-
pared with the current behaviour at the
wheel. If the system detects that the driver is
tired, an audible warning using a “gong” is
given and a symbol and complementary
message on the instrument panel display are
shown
›››
Fig. 277. The on-screen message
on the dash panel is displayed for 5 seconds
and, where required, repeated again. The
system stores the last message displayed.
The message that appears on the instrument
panel display can be switched off by press-
ing the OK
button on the multifunction steer-
ing wheel or on the windo
w wiper l
e
ver
›››
page 29. Using the multifunction dis-
play
›››
page 29 the message on the in-
strument panel display can be shown.
Conditions of operation
Behaviour at the wheel is only evaluated at
speeds of above 65 km/h (40 mph).
Switching on and off
The system can be switched on or off in the
Assistants menu. If an assistance system is
switched on, this is indicated with a “mark”.
Limited operation
The tiredness detection function is subject to
certain limitations. Therefore it is possible that
in some driving situations behaviour at the
wheel cannot be correctly interpreted. E.g. in
the following situations:
●
at speeds lower than 65 km/h (40 mph),
●
in sections with corners,
●
on roads in poor condition,
●
in the event of adverse weather conditions,
●
when a sporty driving style is employed,
●
in the event of a major distraction for the
driver,
The tiredness detection function switches off
when the ignition is switched off or when the
driver unbuckles their seat belt and opens the
door. If driving for a long time under 65 km/h
(40 mph), the system ceases to assess tired-
ness automatically. If driving speed is then in-
creased, the behaviour at the wheel will
again be evaluated.
Dynamic Chassis control
(DCC)*
Operation and control
Fig. 278
On the centre console: button for set-
ting the dynamic chassis contr
ol
.
»
297
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