R
the bonnet 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 is switched off automatically.
All vehicles (except Mercedes-AMG vehi-
cles): automatic engine switch-off can take
place a maximum of four times in a row (initial
switch-off, then three subsequent switch-offs).
The
è
ECO symbol is shown in yellow in the
multifunction 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.
Mercedes-AMG vehicles: the number of con-
secutive automatic engine stops is unlimited.
Vehicles with manual transmission
The ECO start/stop function switches off the
engine automatically at low speeds.
X
Brake the vehicle.
X
Shift to neutral N (follow gearshift instruc-
tion
:
to shift to neutral N, if necessary).
X
Release the clutch pedal.
The engine is switched off automatically.
Vehicles with automatic transmission
If the vehicle is braked to a standstill with the
transmission in D or N, the ECO start/stop func-
tion 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.
Automatic engine start
General notes
The engine is started automatically if:
R
you switch off the ECO start/stop function by
pressing the ECO button
R
you depress the accelerator pedal
R
you engage reverse gear R
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-
screen when the air-conditioning system is
switched on
R
the battery's charge status is too low
Vehicles with manual transmission
!
Only engage gear when the clutch pedal is
depressed.
The engine is started automatically when you
depress the clutch pedal.
Vehicles with automatic transmission
The engine is started automatically if:
R
you switch to drive program S+ (all vehicles
except Mercedes-AMG vehicles)
R
you switch to drive program RACE
(S
‑
MODEL), S+ or S (Mercedes-AMG vehicles)
R
you permanently activate manual gearshifting
(
Y
page 163) (Mercedes-AMG vehicles)
R
in transmission position D or N, the brake
pedal is released and the HOLD function is not
active
R
you shift from transmission position P
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.
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Driving
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