Mercedes-Benz S-Sedan 2015 Owners Manual - Manual (Page 179)

G WARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if:
R you are pulling away on a level road or on a
downhill gradient.
R the transmission is in position N.
R the electric parking brake is applied.
R ESP ® is malfunctioning.
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
If the è ECO symbol is shown in green in
the multifunction display, the ECO start/stop
function switches the engine off automati-
cally once the vehicle stops moving.
Every time you switch on the engine using the
SmartKey or the Start/Stop button, the ECO
start/stop function is activated.
If the ECO start/stop function has been man-
ually deactivated (
Y
page 178) or a malfunc-
tion has caused the system to be deactivated,
the è ECO symbol is not displayed.
The ECO start/stop function is only available
in drive program E (drive program C on AMG
vehicles).
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
and the è ECO symbol is displayed in
green in the multifunction display, if:
R
the indicator lamp in the ECO button is lit
green.
R the outside temperature is within the range
that is suitable for the system.
R
the engine is at normal operating temper-
ature.
R the set temperature for the vehicle interior
has been reached.
R
the battery is sufficiently charged.
Driving
177
Drivi
ng
and
parking
Z