Mercedes-Benz S-Class 2012 - Manual (Page 309)

or yellow. Always secure the vehicle against
rolling away before leaving it.
! Always switch the ignition off and take the
key with you when leaving the vehicle.
Automatic engine switch-off
The ECO start/stop function switches the
engine off automatically if the vehicle is
braked to a standstill and the brake remains
depressed with the transmission in position
D or N.
i You can still activate the HOLD function
when the vehicle is stationary, even 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. Depress the
accelerator pedal carefully, as the engine
must be started first.
The engine is only switched off if:
R
the outside temperature is within the range
which is suitable for the system.
R
the engine is at normal operating
temperature.
R the set temperature for the vehicle interior
has been reached.
R
the battery is sufficiently charged.
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
no engine-relevant diagnostics are active.
R
the driver's door is closed and the seat belt
is fastened.
Automatic engine start
The engine is started automatically if you:
R
release the brake pedal when HOLD is not
activated and the transmission is in
position
D or N
R
shift the transmission to position R
R depress the accelerator pedal
R switch off the ECO start/stop function or
switch to drive program
S or M
R
unfasten your seat belt or open the driver's
door
The engine is also started automatically if:
R
the vehicle starts to roll.
R
the brake system requires this.
R
the system detects moisture on the
windshield when the air-conditioning
system is switched on.
R
the temperature in the vehicle interior
deviates from the set range.
R
the charge level of the battery is too low.
Deactivating/activating the ECO start/
stop function
General information
You can deactivate and activate the ECO
start/stop function using COMAND
(
Y page 261).
i You can also use the programmable
button ( Y page 120) to activate and
deactivate the ECO start/stop function if
you have assigned this function to the
button.
Deactivating
X Deactivate the ECO start/stop function
using COMAND (
Y page 261):
The ¤ ECO symbol goes out and the
Stop/Start deactivated display
message is shown in the multifunction
display.
i If drive program S or M has been selected,
the ECO start/stop function is always
deactivated.
Driving
307
Driving and parking
Z