Mercedes-Benz S-Sedan 2015 Owners Manual - Manual (Page 180)

R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If the conditions for automatic engine switch-
off are not all fulfilled, the è ECO symbol is
shown in yellow.
All of the vehicle's systems remain active
when the engine has been stopped automat-
ically.
The HOLD function can be activated if the
engine has been switched off automatically. It
is then not necessary to continue applying the
brakes during the automatic stop phase.
When you depress the accelerator pedal, the
engine starts automatically and the braking
effect of the HOLD function is deactivated.
All vehicles (apart from AMG vehicles):
automatic engine switch-off can take place a
maximum of four times consecutively (initial
stop then repeated three times). The è
ECO symbol is shown in yellow in the multi-
function display after the engine has been
started automatically for the fourth time.
When the è ECO symbol is shown in green
in the multifunction display, automatic engine
switch-off is again possible.
AMG vehicles: times which the engine can
be automatically switched off.
Automatic engine start
The engine starts automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button.
R you switch to drive program S or M.
R in transmission position D or N the brake
pedal is released and the HOLD function is
not active.
R you depress the accelerator pedal.
R you engage reverse gear R.
R you move the transmission out of position
P.
R you unfasten your seat belt or open the
driver's door.
R
the vehicle starts to roll.
R
the brake system requires this.
R the temperature in the vehicle interior devi-
ates from the set range.
R the system detects moisture on the wind-
shield when the air-conditioning system is
switched on.
R the battery's condition of charge is too low.
Shifting the transmission to position P does
not start the engine.
If you shift the transmission from R to D, the
ECO start/stop function is available again
once the è ECO symbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function
All vehicles (except AMG vehicles)
X
To deactivate: press ECO button :.
Indicator lamp ; and the è ECO sym-
bol in the multifunction display go out.
X
To activate: press ECO button :.
Indicator lamp ; lights up. If all conditions
for automatic engine switch-off
(
Y
page 177) are fulfilled, the è ECO
symbol is shown in green in the multifunc-
tion display.
If not all conditions for automatic engine
switch-off (
Y
page 177) are fulfilled, the
è ECO symbol is shown in yellow in the
178
Driving
Dr
ivi
ng
an
d
parki
ng