122 Driver assist systems ›
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Maximum speed for trailer - Setting the speed limits for
trailer operation
Crew Protect Assist proactive occupant
protection
Usage
The system of proactive occupant protection trig-
gers measures to protect vehicle occupants in dan-
gerous situations.
Functionality
If the system evaluates the situation as critical, it
triggers the following safety measures.
The hazard warning lights are switched on.
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Open windows are closed except for a small gap.
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The sliding/tilting roof is closed.
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The front seat belts are tightened on the body.
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The system response depends on the selected
driving mode.
Risk of frontal impact
Applies to vehicles with the Front Assist system.
The system triggers safety measures when it de-
tects the impending danger of a frontal impact.
Risk of rear impact
Applies to vehicles with the lane change assist Side
Assist.
The system triggers safety measures when it de-
tects the impending danger of a rear impact.
Driver inactivity hazard
Applies to vehicles with assist systems for emergen-
cy situations.
The system triggers safety measures when it de-
tects the impending danger if the driver is inactive.
Function restriction
The function may be restricted or unavailable in the
following cases.
When deactivating the ASR or activating the ESC
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Sport
When reversing.
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If there is a malfunction in the ESC, reversible seat
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belt or airbag system.
If there is a malfunction or limitation of the Front
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Assist system.
If there is a malfunction or restriction of the lane
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change assist system Side Assist.
If there is a malfunction or restriction of the Emer-
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gency Assist assist systems.
Crew Protect Assist proactive occupant protection
Settings
Automatic activation
The system is automatically activated when the igni-
tion is switched on.
Troubleshooting
Crew Protect Assist faulty
illuminates together with
Message concerning unavailability or function-
al restriction
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Seek the help of a specialist garage.
Driver Alert fatigue detection assistant
Functionality
Driver Alert evaluates the steering behaviour. If it de-
tects fatigue in the driver, a break is recommended.
In the display of the instrument cluster, the following
symbol lights up
from the isolation box.
WARNING
There will be no system warning during the so-called
micro-sleep.
Resetting the break recommendation
The break recommendation is reset in the following
cases.
The vehicle stops and the ignition is switched off.
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The vehicle stops, the seat belt is removed and the
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driver's door is opened.
The vehicle stops for more than 15 minutes.
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In some situations, the system may erroneously
issue a break recommendation.
Operating conditions
✓ Driving speed between 60-200 km/h.
Settings
Activation/deactivation
In the Infotainment system, in the menu:
Emergency situation assist
systemEmergency Assist
Usage
The assist systems for emergencies detect inactivity
of the driver, which, for example, can be caused by a
sudden loss of consciousness. The system then per-