Automatic Engine Switch-Off; Important Safety Notes; Introduction; Eco Start/Stop Function - Mercedes-Benz CLA Operator's Manual

the electric parking brake is applied.
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®
R ESP is malfunctioning.
Further information on holding the vehicle
stationary on uphill gradients (

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
:
If the ¤ symbol is shown in green in the
multifunction display, the ECO start/stop
function switches the engine off
automatically if the vehicle stops moving.
The stop/start function is automatically
activated each time you start the engine with
the SmartKey.
If the ECO start/stop function has been
manually deactivated (
malfunction has caused the system to be
deactivated, the ¤ symbol is not
page 145).
Y
displayed.
AMG vehicles: the ECO start/stop function
is only available in drive program C.

Automatic engine switch-off

General notes
The ECO start/stop function is operational
and the ¤ symbol is displayed in green in
the multifunction display, if:
the indicator lamp in the ECO button is lit
R
green.
the outside temperature is within the range
R
that is suitable for the system.
the engine is at normal operating
R
temperature.
the set temperature for the vehicle interior
R
has been reached.
the battery is sufficiently charged.
R
the system detects that the windshield is
R
not fogged up when the air-conditioning
system is switched on.
the hood is closed.
R
the driver's door is closed and the driver's
R
seat belt is fastened.
If not all conditions for automatic engine
switch-off are fulfilled, the ¤ symbol is
shown in yellow.
i
All of the vehicle's systems remain active
when the engine has been stopped
automatically.
i
The engine can be switched off
automatically a maximum of four times
(first stop and three subsequent stops) in
succession. The ¤ symbol is shown in
yellow in the multifunction display after the
engine has been started automatically for
the fourth time. When the ¤ symbol is
shown in green in the multifunction display,
Driving
page 140) or a
Y
Z
139