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Available route results
1
Event ahead
2
Distance to the event ahead
3
"Foot off the accelerator" prompt
A different number of segments 2 will light up
around the symbol depending on the distance to
the event ahead:
R
Few segments: the event ahead is near
R
Many segments: the event ahead is further
away
When the vehicle nears an event, ECO Assist will
calculate the optimal speed for maximum fuel
economy and recuperative energy based on the
distance, speed and downhill gradient. "Foot off
the accelerator"
3 symbol will appear on the
multifunction display.
If the driver lifts off the accelerator pedal in
good time, the remaining segments on the dis‐
play will turn green until the event shown is
reached. The drivetrain will be set for maximum
fuel economy. In the = drive program with
drive setting "Reduced" or "Moderate", the vehi‐
cle will coast, with the combustion engine
switched off if necessary.
If there is no response to "Foot off the accelera‐
tor"
3 prompt, the segments will remain white.
The event will be shown for a short time after it
has been passed.
If the event involves a vehicle ahead and when
the coast-down recommendation is given, all
segments will immediately turn green once there
is a response to "Foot off the accelerator" 3
prompt.
If the system does not intervene during the
event ahead, nothing will be displayed. The sys‐
tem is passive.
In the A drive program, only the result "Vehi‐
cle ahead" is displayed.
System limitations
ECO Assist can function more precisely if the
route is maintained when route guidance is
active. The basic function is also available with‐
out active route guidance. Not all information
and traffic situations can be foreseen. The qual‐
ity depends on the map data.
ECO Assist is only an aid. The driver is responsi‐
ble for keeping a safe distance to the vehicle in
front, for vehicle speed and for braking in good
time. The driver must be ready to brake at all
Driving and parking
145
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