ATTENTION ASSIST assists you on long, monotonous journeys, e.g. on motorways and trunk roads. If indicators of fatigue or increasing lapses in concentration on the part of the driver are detected, the system suggests taking a break.
ATTENTION ASSIST is only an aid. It cannot always detect fatigue or lapses in concentration in time. The system is not a substitute for a well-rested and attentive driver. On long journeys, take regular breaks in good time that allow for adequate recuperation.
Standard: normal system sensitivity.
Sensitive: higher system sensitivity. The driver is warned earlier and the attention level detected by ATTENTION ASSIST is adapted accordingly.
If drowsiness or increasing lapses in concentration are detected, the ATTENTION ASSIST: Take a break! warning appears in the driver's display. You can acknowledge the message and take a break where necessary. If you do not take a break and ATTENTION ASSIST continues to detect increasing lapses in concentration, you will be warned again after a minimum of 15 minutes.
The length of the journey since the last break
The attention level determined by ATTENTION ASSIST:
The more segments
of the circle displayed, the higher the detected attention level. Fewer segments
are displayed in the circle as the attention level decreases.
If ATTENTION ASSIST is unable to calculate the attention level and cannot issue a warning, the System suspended message appears.
If a warning is given in the driver's display, the multimedia system offers to search for a rest area. You can select a rest area and start navigation to this rest area.
If you restart the vehicle, ATTENTION ASSIST with microsleep detection is automatically activated. The last selected sensitivity level remains stored.
ATTENTION ASSIST is active in the 60 km/h to 200 km/h speed range.
If you have been driving for less than approximately 30 minutes.
If the road condition is poor (uneven road surface or potholes).
If there is a strong side wind.
If you adopt a sporty driving style (high cornering speeds or high rates of acceleration).
If the Steering Assist function of Active Distance Assist DISTRONIC is active.
If the clock is set to the incorrect time.
If you change lanes and vary your speed frequently in active driving situations.
Also observe any information regarding display messages that can be displayed in the driver's display.
You switch off the vehicle.
If you unfasten your seat belt and open the driver's door (e.g. to change drivers or take a break).