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 driv-
er'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.
Deactivating or activating the ECO
start/stop function
All vehicles (except Mercedes-AMG vehi-
cles)
X
To deactivate: press ECO button
:
.
Indicator lamp
;
goes out.
X
To activate: press ECO button
:
.
Indicator lamp
;
lights up.
If indicator lamp
;
is off, the ECO start/stop
function has been deactivated manually or as
the result of a malfunction. The engine will then
not be switched off automatically when the vehi-
cle stops.
If drive program S or M has been selected, the
ECO start/stop function is always deactivated.
If you switch on the ECO start/stop function
while drive program S is selected, the drive pro-
gram automatically switches to E.
Mercedes-AMG vehicles
X
To deactivate: in drive program C, press ECO
button
:
.
or
X
Switch to drive program S or M(
Y
page 146).
Indicator lamp
;
goes out.
X
To activate: press ECO button
:
.
Indicator lamp
;
lights up.
If drive program S or M is active, the auto-
matic transmission switches to drive program
C.
If indicator lamp
;
is off, the ECO start/stop
function has been deactivated manually or as
the result of a malfunction. The engine will then
not be switched off automatically when the vehi-
cle stops.
If drive program S or M has been selected, the
ECO start/stop function is always deactivated.
If you switch on the ECO start/stop function
while drive program S is selected, the drive pro-
gram automatically switches to C.
Driving
141
Dr
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and
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