2015 MERCEDES-BENZ S-Class lights

key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid Smart- Key is in the vehicle. This occurs, for example, when starting the engine.
To start the vehicle without actively using the
SmartKey:
R the Start/Stop button must be inserted in
the ignition lock.
R the SmartKey must be in the vehicle.
R the vehicle must not be locked with the
SmartKey or KEYLESS-GO (Y page 91).
Do not keep the SmartKey:
R with electronic devices, e.g. a mobile
phone or another SmartKey
R with metallic objects, e.g. coins or metal
foil
R inside metallic objects, e.g. a metal case
This can affect the functionality of the Smart- Key.
Do not keep the SmartKey in the tempera-
ture-controlled cup holder (Y page 380). Oth-
erwise, the SmartKey will not be detected,
e.g. when starting the engine with the Start/ Stop button.
If you lock the vehicle with the SmartKey's
remote control or with KEYLESS-GO, after a
short time:
R you will not be able to switch on the ignition
with the Start/Stop button.
R you will not be able to start the engine with
the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the but-
ton on the front door (Y page 97), you can
continue to start the engine with the Start/
Stop button. The engine can be turned off while the vehicle
is in motion by pressing and holding the
Start/Stop button for approximately three
seconds. This function operates independ-
ently of the ECO start/stop automatic engine switch-off function.
SmartKey positions with the Start/Stop
button :
Start/Stop button
; Ignition lock
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light up. If an indicator lamp does not go out afterstarting the engine or lights up while driving,
see (Y page 357).
If Start/Stop button :has not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice when
in this position 190
DrivingDriving an
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R
the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
All of the vehicle's systems remain active
when the engine is stopped 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.
All vehicles (apart from AMG vehicles):
automatic engine switch-off can take place a
maximum of four times consecutively (initial
stop then repeated three times).
AMG vehicles: times which the engine can
be automatically switched off.
Automatic engine start The engine starts automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button.
R you switch to drive program Sor M.
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is
not active.
R you depress the accelerator pedal.
R you engage reverse gear R.
R you move the transmission out of position
P.
R you unfasten your seat belt or open the
driver'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-
shield when the air-conditioning system is
switched on.
R the battery's condition of charge is too low.
Shifting the transmission to position Pdoes
not start the engine. Deactivating/activating the ECO start/
stop function All vehicles (except AMG vehicles)
X
To deactivate: press ECO button :.
Indicator lamp ;goes out.
X To activate: press ECO button :.
Indicator lamp ;lights up.
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as the result of a malfunction. The engine will
then not be switched off automatically when
the vehicle stops.
If drive program Sor Mhas been selected, the
ECO start/stop function is always deactiva-
ted.
If you switch on the ECO start/stop function
while drive program Sis selected, the drive
program automatically switches to E.
AMG vehicles 194
DrivingDriving an
d parking

X
To switch off: in drive program C, press
ECO button :.
or X Switch to drive program Sor M
(Y page 200).
Indicator lamp ;goes out.
X To activate: press ECO button :.
Indicator lamp ;lights up.
If drive program Sor Mis active, the auto-
matic transmission switches to drive pro-
gram C.
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as the result of a malfunction. The engine will
then not be switched off automatically when
the vehicle stops.
If drive program Sor Mhas been selected, the
ECO start/stop function is always deactiva-
ted.
If you switch on the ECO start/stop function
while drive program Sis selected, the drive
program automatically switches to C. Driving
195Driving an d parking Z

Opening the fuel filler flap (except
PLUG-IN hybrid vehicles)
:
To open the fuel filler flap
; To insert the fuel filler cap
= Tire pressure table
? Fuel type to be used
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
X Turn the fuel filler flap counter-clockwise
and remove it.
X Insert the fuel filler cap into the holder on
the inside of the fuel filler flap.
X Completely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
X Only fill the tank until the pump nozzle
switches off.
Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out. Opening the fuel filler flap (PLUG-IN
HYBRID vehicles) X
Pull switch :.
Indicator lamp ;flashes and the Please Please
Wait Depressurizing Tank
Wait Depressurizing Tank message
appears in the multifunction display.
If the fuel filler cap is open, indicator
lamp ;lights up.
The Tank is Depressurized Ready Tank is Depressurized Ready
for Refueling
for Refueling message appears in the
multifunction display.
Please be sure to observe the information
on refueling on the fuel filler flap.
There is a malfunction if: R indicator lamp ;first flashes and then
goes out
R the yellow engine diagnostics warning lamp
lights up
i From a speed of 2 km/h, the fuel filler cap
can no longer be opened.
i The opening process for the fuel filler cap
may take up to 15 minutes. Refueling
207Driving and parking Z

Controls on the charging cable
:
Alternating current status indicator
; Control/protection system indicator
= Charge current indicator
? Charge current setting button
When displays :and ;on the charging
cable light up, this means the following: Display
:
: Lights up
green The external power supply
connection is working prop-
erly. The high-voltage bat-
tery can be charged. Flashes red A malfunction has been
detected in the external
power supply. The high-volt-
age battery is recharged as
soon as the electricity signal
registers normal values. Lights up red There is a malfunction. The
charging cable must be
removed from the electrical
outlet and then re-inserted.
Display
; ; Lights up
green There are no malfunctions.
The high-voltage battery
can be charged.
Lights up red An impermissible current is
being supplied to the con-
trol unit. The high-voltage
battery cannot be charged. i
For information on problems relating to
the charging process, see (Y page 218).
Setting the maximum charge current G
WARNING
If the charge current draw via a mains socket is too high during the charging process, the
external electrical system may overheat.
There is a risk of fire.
Before beginning the charging process, checkthe maximum permissible charge current
locally. Consult a qualified expert to do so
where necessary.
If necessary, adjust your vehicle's settings.
! An excessive charge current can blow a
fuse or lead to overheating of the external
power supply. Check whether the external
power supply is compatible with the set
charge current. If necessary, lower the set
charge current or use another power
socket.
You can set a limit for the values of the charge current used in charging the high-voltage bat-
tery. This acts as a means of preventing the
power supply from overloading. You can set
this limit by using the controls on the charging
cable or in the on-board computer's menu.
Only set the maximum charge current in the
on-board computer menu if there are no
charge current settings on the charging
cable.
The default standard value in the vehicle cor- responds to the maximum charge current
value.
The default standard value on the charging
cable is the minimum charge current setting.This corresponds to the minimum available
charge current from the power supply. The
value on the charging cable can be increased
and is described in the following section.
i The value of the maximum setting and the
adjustment values may vary depending on
the country. Charging the high-voltage battery (plug-in hybrid vehicles)
213Driving and parking Z

Before charging the high-voltage battery,
check the maximum permissible charge cur-
rent for the relevant power socket.
X To adjust the setting: press button?
repeatedly until the desired setting is selec-
ted in display =.
R Two LEDs are flashing: minimum setting
R All LEDs are flashing: maximum setting
If, after the charging process, the charging
cable is:
R left connected to the power socket, the
currently selected values will be used for
the next charging process.
R removed from the power socket, the values
will be reset to the minimum setting for the next charging process. You may then need
to reset the values of the maximum charge current.
i If the vehicle requires more time than
usual when charging, check the maximum
charge current settings using the controls
on the charging cable or in the on-board
computer's menu.
Indicator lamp on the vehicle socket
When the indicator lamp on the vehicle
socket lights up, this means the following: Indicator
lamp
Ý Ý Flashes
slowly in
orange The connection between
the vehicle and the current
source is being established
before charging begins.
Flashes
slowly in
green The high-voltage battery is
being charged.
Flashes rap-
idly in red A malfunction has occurred
while charging. Indicator
lamp
Ý Ý Lights up
orange A charging break for the
high-voltage battery is tak-
ing place.
Lights up
green The high-voltage battery is
fully charged.
i
If the indicator lamp is off, lock or unlock
the vehicle with the SmartKey. The indica-
tor lamp will then display the current status
of the charging process.
i You can view the condition of charge of
the high-voltage battery in the multifunc-
tion display (see "Charging the high-voltage battery when stationary" in the "Energy
flow display" section (Y page 281)).
Connecting the charging cable :
To open the charge socket flap
; Fastener
= Vehicle charge socket flap 214
Charging the high-voltage battery (plug-in hybrid vehicles)Driving and parking

?
Vehicle socket
A Indicator lamp Ý
X Use the DIRECT SELECT lever to shift the
automatic transmission to P.
X Switch the ignition off.
X Press the charge socket flap in the direc-
tion of arrow :.
The charge socket flap swings up.
X Slide fastener ;to the right.
Vehicle socket flap =is open.
X Insert the power supply plug into the elec-
trical outlet to the stop.
X Insert the charging cable connector into
vehicle socket ?to the stop.
The high-voltage battery is being charged.
Ý indicator lamp Aon vehicle
socket ?flashes slowly green.
i The vehicle must not be moved during
charging or when the charging cable is con- nected.
i Depending on the temperature, the fan
and battery cooling system may audibly
switch on during the charging process.
Removing the charging cable When the charge level display reaches 100%
in the multifunction display, the battery is
fully charged (Y page 281).
i After the charging cable has been discon-
nected, the indicator lamp in the vehicle
socket remains lit for some time before
switching off. When the battery is fully charged:
X Unlock the vehicle.
Ý indicator lamp Aon vehicle
socket ?lights up green.
X Press and hold button Bon the charging
cable connector and remove the charging
cable from the vehicle socket.
X Close vehicle socket flap =.
X Close charge socket flap :.
X Remove the charging cable from the elec-
trical outlet.
X Stow the charging cable safely in the vehi-
cle (Y page 212). Charging the high-voltage battery
from the wallbox
General notes It is recommended that you charge your vehi-
cle using a wallbox or at a charging station.
Use the optional quick charging cable when
charging at a wallbox. The charging cable is
stored in a bag in the trunk.
Only use charging cables that have been tes- ted and approved by the manufacturer for
charging the high-voltage battery in an elec-
tric vehicle.
Pay attention to the "Important safety notes"
(Y page 209). Charging the high-voltage battery (plug-in hybrid vehicles)
215Driving and parking Z

Connecting the charging cable
:
To open the charge socket flap
; Fastener
= Vehicle charge socket flap
? Vehicle socket
A Indicator lamp Ý
X Use the DIRECT SELECT lever to shift the
automatic transmission to P.
X Switch the ignition off.
X Press the charge socket flap in the direc-
tion of arrow :.
The charge socket flap swings up.
X Slide fastener ;to the right.
Vehicle socket flap =is open.
X Insert the charging cable connector into
vehicle socket ?to the stop.
The high-voltage battery is being charged.
Ý indicator lamp Aon vehicle
socket ?flashes slowly green.
i The vehicle must not be moved during
charging or when the charging cable is con- nected. i
Depending on the temperature, the fan
and battery cooling system may audibly
switch on during the charging process.
Removing the charging cable When the charge level display reaches 100%
in the multifunction display, the battery is
fully charged (Y page 281).
i After the charging cable has been discon-
nected, the indicator lamp in the vehicle
socket remains lit for some time before
switching off. When the battery is fully charged:
X Unlock the vehicle.
Ý indicator lamp Aon vehicle
socket ?lights up green.
X Press and hold button Bon the charging
cable connector and remove the charging
cable from the vehicle socket.
X Close vehicle socket flap =.
X Close charge socket flap :. Charging the high-voltage battery at
the charging station
The connection for the vehicle at a charging
station is identical to the connection on a
wallbox. Read the "Charging a high-voltage
battery at a wallbox" section (Y page 215).
Before beginning the charging process at a
charging station without communication
capabilities, you must first activate the sta-
tion. You can do this by using an RFID card or 216
Charging the high-voltage battery (plug-in hybrid vehicles)Driving and parking