Driver assist systems › Crew Protect Assist proactive occupant protection 141
The system response depends on the selected
driving mode.
Restriction
The system function may be restricted in the follow-
ing cases:
Risk of frontal impact
Applies to vehicles with the Front Assist system.
The sensor is blinded by the sun or oncoming traf-
▶
The system triggers safety measures when it de-
tects the impending danger of a frontal impact.
fic.
The field of view of the sensor is limited by an ob-
▶
stacle or a preceding vehicle.
If the weather conditions are unfavourable.
The vehicle is moving at high speed.
The road signs are hidden, damaged, or are non-
standard.
▶
▶
▶
Function restriction
The function may be restricted or unavailable in the
following cases:
When deactivated in the infotainment in the menu
The road signs are attached to flashing neon signs.
The navigation map documents are not up-to-date
or not available.
▶
▶
▶
When deactivating the ASR or activating the ESC
Sport
▶
When reversing
If there is a malfunction in the ESC, reversible seat
belt or airbag system
If there is a malfunction or limitation of the Front
Assist system
▶
▶
Settings
Activation / deactivation and setting
In the Infotainment system, in the menu
.
▶
◼
Traffic Sign Recognition
▶
Show in instrument cluster - Activation/deactivation of
Settings
the additional road signs in the display of the in-
strument cluster
Speed warning: - Configures a warning when the
Automatic activation
The system is automatically activated when the igni-
tion is switched on.
▶
speed limit is exceeded
▶
Warning at over - Increases the speed limit for the
warning when exceeding the permitted speed
Trailer detection
Troubleshooting
◼
Crew Protect Assist faulty
illuminates together with
Message concerning unavailability or function-
al restriction
▶
Show road signs relevant to trailers Activation/deactivation
of the display of road signs relevant to trailers
Use for route calculation - Activation/deactivation taking
trailers in account for route calculation in naviga-
tion
▶
Seek the help of a specialist garage.
›
▶
Tap on maximum speed for trailers - Setting the speed limits
for trailer operation
Driver Alert fatigue detection assistant
Functionality
Crew Protect Assist proactive occupant
protection
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.
Usage
The system of proactive occupant protection trig-
gers measures to protect vehicle occupants in dan-
gerous situations.
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:
Functionality
If the system evaluates the situation as critical, it
triggers the following safety measures:
The vehicle stops and the ignition is switched off
▶
▶
Open windows are closed except for a small gap.
The front seat belts are tightened on the body.
▶
▶
The vehicle stops, the seat belt is removed and the
driver's door is opened
English 
