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ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is stopped
under certain conditions.
When the vehicle pulls away again, the engine
starts automatically. The ECO start/stop func-
tion thereby helps you to reduce the fuel con-
sumption and emissions of your vehicle.
Important safety notes
G
WARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
ECO start/stop display
:
Excluding Mercedes-AMG vehicles: the ECO
start/stop function is switched on whenever
you start the engine using the key or the Start/
Stop button.
If the è ECO symbol is shown on the multi-
function display, the ECO start/stop function
switches the engine off automatically if the vehi-
cle stops moving.
If the ECO start/stop function has been
switched off manually (
result of a malfunction, the è or ç ECO
symbol is not displayed.
Mercedes-AMG vehicles: the ECO start/stop
function is available only in drive program C.
Mercedes-AMG C 43 4MATIC: the ECO start/
stop function is available only in drive programs
C and E.
page 139) or as the
Y
Mercedes-AMG vehicles: the ECO start/stop
function is switched on whenever you restart
the engine using the key or the Start/Stop but-
ton. This is the case if:
the ignition was switched off for more than
R
four hours or
the ECO start/stop function had been
R
switched on before the engine was switched
off
Automatic engine switch-off
General notes
If the vehicle is braked to a standstill with the
transmission in h or i, the ECO start/stop
function switches off the engine automatically.
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.
The ECO start/stop function is operational and
the è ECO symbol is shown on the multi-
function display if:
the indicator lamp in the ECO button is lit
R
green
the outside temperature and the atmospheric
R
air pressure are within a range that is suitable
for the system
the engine is at normal operating temperature
R
the set temperature for the vehicle interior
R
has been reached
the battery is sufficiently charged
R
the system does not detect moisture on the
R
windscreen when the air-conditioning system
is switched on
the bonnet is closed
R
the driver's door is closed and the driver's
R
seat belt is fastened
If all conditions for automatic engine switch-off
are not fulfilled, the ç ECO symbol is shown.
All the vehicle's systems remain active when the
engine is switched off automatically.
Mercedes-AMG C 63 and Mercedes-AMG
C 63 S: the number of consecutive automatic
engine stops is unlimited.
All other models: the engine can be switched
off automatically a maximum of four times (ini-
tial stop, then three subsequent stops) in suc-
Driving
137
Z
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