Mercedes-Benz GLS Operator's Manual page 146

Driving
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leave the vehicle when it is held by hill start
assist.
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 stopped
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 when-
ever you start the engine using the SmartKey or
the Start/Stop button.
If the engine has been switched off automati-
cally by the ECO start/stop function, the è
ECO symbol is shown in the multifunction dis-
play.
Mercedes-AMG vehicles: the ECO start/stop
function is only available in drive programs
Comfort and Slippery.
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 Sport Plus or Sport drive program is not
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selected (Mercedes-AMG vehicles)
no Off-road program has been selected
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the outside temperature and the atmospheric
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air pressure is within the range that is suitable
for the system
the engine is at normal operating temperature
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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 not
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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
All of the vehicle's systems remain active when
the engine is stopped automatically.
The HOLD function can also 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.
All vehicles (except Mercedes-AMG vehi-
cles): automatic engine switch-off can take
place a maximum of four times in a row (initial
stop, then three subsequent stops).
Mercedes-AMG vehicles: the number of con-
secutive automatic engine switch-offs is unlimi-
ted.