Mercedes-Benz SL SERIES Operator's Manual page 157

Hill start assist is not active if:
you are pulling away on a level road or on a
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downhill gradient.
the transmission is in position N.
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the electric parking brake is applied.
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ESP is malfunctioning.
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ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is stop-
ped under certain conditions.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption 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
:
The ECO start/stop function is activated
whenever you switch on the engine using the
SmartKey or the Start/Stop button.
If the engine has been switched off automat-
ically by the ECO start/stop function, the
è ECO symbol is shown in the multifunc-
tion display.
Mercedes-AMG vehicles: the ECO start/
stop function is only available in drive pro-
gram C.
For further information on automatic engine
switch-off ( page 155) and automatic
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engine start ( page 156).
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Automatic engine switch-off
If the vehicle is braked to a standstill in D or N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
the indicator lamp in the ECO button is lit
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green.
the outside temperature is within the range
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that is suitable for the system.
the engine is at normal operating temper-
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ature.
the set temperature for the vehicle interior
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has been reached.
the battery is sufficiently charged.
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the system detects that the windshield is
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not fogged up when the air-conditioning
system is switched on.
the hood is closed.
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the driver's door is closed and the driver's
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seat belt is fastened.
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All of the vehicle's systems remain active
when the engine is stopped automatically.
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All vehicles (except Mercedes-AMG
vehicles): automatic engine switch-off can
take place a maximum of four times in a row
(initial stop, then three subsequent stops).
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Mercedes-AMG vehicles: the number of
consecutive automatic engine switch-offs
is unlimited.
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The HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
Driving
155
Z