▷
Driving conditions, for instance length of trip.
Starting at approx. 43 mph/70 km/h, the system
is active and can also display a recommendation
to take a break.
Break recommendation
Switching on/off, adjusting
The alertness assistant is active automatically
with each switching on of drive-ready state and
can thus display a break recommendation.
The break recommendation can also be
switched on or off and adjusted via iDrive.
Via iDrive:
1.
"My Vehicle"
2.
"Vehicle settings"
3.
"Driver attention control"
4.
Select desired setting:
▷
"Off": no break recommendation is made.
▷
"Standard": the break recommendation is
made with a defined value.
▷
"Sensitive": the break recommendation is
issued earlier.
Display
If the driver becomes less alert or fatigued, a
message is displayed in the Control Display with
the recommendation to take a break.
During the display, the following settings can be
selected:
▷
"Do not ask again"
▷
"Places to stop"
▷
"Remind me later"
The break recommendation is repeated after
20 minutes.
After a break, another recommendation to take a
break cannot be displayed until after approxi‐
mately 45 minutes.
Online Edition for Part no. 01402989843 - II/18
Safety
System limits
The function may be limited in the following sit‐
uations, for instance and will either output an in‐
correct warning or no warning at all:
▷
When the clock is set incorrectly.
▷
When the vehicle speed is mainly below
about 43 mph/70 km/h.
▷
With a sporty driving style, such as during
rapid acceleration or when cornering fast.
▷
In active driving situations, such as when
changing lanes frequently.
▷
When the road surface is poor.
▷
In the event of strong side winds.
The system is reset approx. 45 minutes after
parking the vehicle, for instance in the case of a
break during longer trips on highways.
CONTROLS
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