Mercedes-Benz E-Class Sedan Operator's Manual page 192

190 Driving and parking
ATTENTION ASSIST is only an aid. It cannot
always detect fatigue or lapses in concentration
until too late. The system is not a substitute for a
well-rested and attentive driver. On long jour‐
neys, take regular breaks in good time that allow
for adequate recuperation.
You can choose between two settings.
Standard: normal system sensitivity
R
Sensitive: higher system sensitivity. The
R
driver is warned earlier and the attention
level detected by ATTENTION ASSIST is adap‐
ted accordingly.
If drowsiness or increasing lapses in concentra‐
tion are detected, the
warning appears in the Instrument Dis‐
play. 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.
You can have the following status information for
ATTENTION ASSIST displayed in the assistance
menu of the on-board computer:
The length of the journey since the last
R
break.
The attention level determined by ATTENTION
R
ASSIST.
if ATTENTION ASSIST is unable to calculate the
attention level and cannot issue a warning, the
message appears.
If a warning is given in the Instrument Display,
the multimedia system offers to search for a rest
area. You can select a rest area and start naviga‐
tion to this rest area. This function can be activa‐
ted and deactivated in the multimedia system.
If ATTENTION ASSIST is deactivated, the é
symbol appears in the assistance graphic in the
Instrument Display when the engine is running.
ATTENTION ASSIST is activated automatically
when the engine is re-started. The last selected
sensitivity level remains stored.
System limitations
ATTENTION ASSIST is active in the 37 mph
(60 km/h) to 124 mph (200 km/h) speed range.
The functionality of ATTENTION ASSIST is
restricted, and warnings may be delayed or not
occur at all in the following situations:
If you have been driving for less than 30
R
minutes.
If the road condition is poor (uneven road
R
surface or potholes).
If there is a strong side wind.
R
If you adopt a sporty driving style (high cor‐
R
nering speeds or high rates of acceleration).
If the Steering Pilot function of Distance Pilot
R
DISTRONIC is active.