key battery MERCEDES-BENZ S-CLASS SEDAN 2013 User Guide

Problems with the SmartKey
Problem Possible causes/consequences and
M SolutionsYou cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the %/
& button.
If this does not work:
X Check the SmartKey battery (Y page 82) and replace it if
necessary ( Y page 82).
X Lock ( Y page 87) or unlock ( Y page 88) the vehicle using
the mechanical key. The SmartKey is faulty.
X
Lock ( Y page 87) or unlock ( Y page 88) the vehicle using
the mechanical key.
X Have the SmartKey checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. KEYLESS-GO is in standby mode because the vehicle has not been
unlocked for an extended period.
X
Pull the door handle twice and then insert the SmartKey into the
ignition lock. There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle using the remote control function of
the
SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.There is a malfunction with KEYLESS-GO.
X
Lock/unlock the vehicle using the remote control function of
the

SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.
X Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X Check the SmartKey battery (Y page 82) and replace it if
necessary ( Y page 82).
X Lock ( Y page 87) or unlock ( Y page 88) the vehicle using
the mechanical key. You have lost a
SmartKey. X
Have the SmartKey deactivated at a qualified specialist
workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well.84
SmartKey
Opening/closing

Problem Possible causes/consequences and
M SolutionsYou have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The engine cannot be
started using the
SmartKey. The on-board voltage is too low.
X
Remove the SmartKey and reinsert it into the ignition lock.
X Start the engine within 30 seconds of inserting the SmartKey in
the ignition lock.
X Repeat if necessary.
If the engine does not start after several attempts:
X Check the starter battery and charge it if necessary
(Y page 478).
or
X Jump-start the vehicle (Y page 481).
or
X Consult a qualified specialist workshop. The engine cannot be
started
using KEYLESS-
GO. The SmartKey is in
the vehicle. A door is open. Therefore, the SmartKey cannot be detected as
easily.
X
Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint

system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in operation even after the SmartKey has
been

removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts. Doors
85
Opening/closing Z

X
Turn the mechanical key counter-clockwise
from position 1 as far as it will go to
position 2.
The trunk is unlocked.
X Turn the mechanical key back to position
1 and remove it.
X Insert the mechanical key into the
SmartKey. Trunk emergency release
You can open the trunk lid from inside the
vehicle with the emergency release button. X
Briefly press emergency release
button :.
The trunk lid unlocks and opens.
The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving.
Trunk lid emergency release light:
R emergency release button : flashes for
30 minutes after the trunk lid is opened.
R emergency release button : flashes for
60 minutes after the trunk lid is closed.
The trunk lid emergency release does not
open the trunk lid if the battery is
disconnected or discharged. Side windows
Important safety notes
G
WARNING
When opening or closing the door windows,
make sure that there is no danger of anyone
being harmed by the opening/closing
procedure.
The door windows are equipped with
automatic
operation and the anti-entrapment
feature. If in automatic mode a door window
encounters an obstruction that blocks its
path, the anti-entrapment feature will stop the
door window and open it slightly.
The door windows operate differently when
the switch is pulled. See the "Problems with
door windows" section for details.
The closing of the door windows can be
immediately halted by releasing the switch or,
if the switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
Activate the override switch when children
are riding in the back seats of the vehicle. The
children may otherwise injure themselves,
e.g. by becoming trapped in the door window
opening. G
WARNING
Do not keep any part of your body up against
the
window pane when opening a window. The
downward motion of the pane may pull that
part of your body down between the window
pane and the door frame and trap it there. If
there is a risk of entrapment, release the
switch and pull it to close the window. 92
Side windows
Opening/closing

i
If the battery voltage is too low, the seat
heating may switch off. The system automatically switches down
from level 3 to level 2 after approximately
eight minutes.
The system automatically switches down
from
level 2 to level 1 after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the SmartKey is in position
2 in the ignition lock.
X To switch on: press button : repeatedly
until the desired heating level is set.
X To switch off: press button : repeatedly
until all the indicator lamps go out.
Problems with the seat heating The seat heating has switched itself off
prematurely. The vehicle's electrical system
voltage

is too low because too many electrical
consumers are switched on.
X Switch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting. Switching the seat ventilation on/off
Switching on/off The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected. i
If the battery voltage is too low, the seat
ventilation may switch off. X
Make sure that the SmartKey is in position
2 in the ignition lock.
X To switch on: press button : repeatedly
until the desired ventilation level is set.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature ( Y page 93). The seat
ventilation of the driver's seat
automatically

switches to the highest level.
X To switch off: press button : repeatedly
until all the indicator lamps go out.
Problems with the seat ventilation The seat ventilation has switched off
prematurely. The vehicle's electrical system
voltage

is too low because too many electrical
consumers are switched on.
X Switch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle. Steering wheel
109
Seats, steering wheel and mirrors
Z

E
COMAND: to select a station from
presets, select a track, enter directly,
enter
a phone number, for example. Rear
Seat Entertainment System: to select a
track, enter directly
F To exit a menu (back)
X Point the remote control at the
corresponding screen and execute the
functions by pressing the corresponding
buttons.
i The remote control's function may be
restricted

depending on the angle at which
it is pointed at the respective screen.
Selecting the screen for the remote
control X
Turn thumbwheel = until the desired
display is highlighted in the window.
Switching the screen on/off (Rear Seat
Entertainment System only) If the SmartKey is in the ignition lock in
position
0

or 1 or if the SmartKey is not in the
ignition lock, the rear screens will switch off
after 30 minutes. Before the screens switch
off, they show a message to this effect.
You can switch the screens back on.
However, this will discharge the starter
battery.
X Point the remote control at the rear-
compartment screen which has been
selected for remote operation.
X Press button : on the remote control.
The respective rear screen switches on or
off.
i You
can only switch the screens on using
the remote control if the ignition is
switched on.
Switching the button lighting on/off X
Press button ; on the remote control.
Depending on the previous status, the
button lighting is switched on or off. i
If you do not use the remote control for
about 15 seconds, the button lighting
switches off automatically.
Mute X
Press button B on the remote control.
The sound is switched on/off.
Adjusting the volume This function is available for SPLITVIEW and
for the Rear Seat Entertainment System in
conjunction with corded headphones.
X
Press one of buttons C on the remote
control.
The

volume of the currently selected audio
or video source changes.
For COMAND, you can also adjust the
volume for phone calls and navigation
messages.
Selecting a menu/menu item and
confirming your selection X
Press the =;9: buttons to
select
the menu/menu item and press the
9 button to confirm. 126
At a glance
COMAND

Remote control
Overview
:
To switch the screen on/off
; To switch the button lighting on/off
= To select the screen for remote control
operation (COMAND , SPLITVIEW, L
REAR and REAR R can be selected)
? To select a menu or menu item
A To confirm a selection or setting
B To switch sound on/off (for corded
headphones)
C To adjust the volume (for corded
headphones)
D To skip; fast-forward/fast-rewind
E To select a track; direct entry
F To exit a menu (back) Selecting the screen for the remote
control
You can use the remote control to operate
one of the two rear screens at a time. To do
so,
you must switch the remote control to the
desired screen.
X To select the left-hand screen: turn
thumbwheel = until "L REAR" is
highlighted in the window.
X To select the right-hand screen: turn
thumbwheel = until "REAR R" is
highlighted in the window.
Switching the screen on/off
If the SmartKey in the ignition lock is in
position 0

or 1 or if the SmartKey is not in the
ignition lock, the rear screens will switch off
after 30 minutes. Before the screens switch
off, they show a message to this effect.
You can switch the screens back on.
However, this will discharge the starter
battery.
X Point the remote control at the rear-
compartment screen which has been
selected for remote operation.
X Press button : on the remote control.
The respective rear screen switches on or
off.
i You
can only switch the screens on using
the remote control if the ignition is
switched on.
Switching the button lighting on/off
X Press button ; on the remote control.
Depending on the previous status, the
button lighting is switched on or off.
i If you do not use the remote control for
about 15 seconds, the button lighting
switches off automatically.
Switching the sound on/off (corded
headphones only)
X Press button B on the remote control.
The sound is switched on/off.140
At a glance
COMAND

R
a valid and operational SIM card must be
inserted in the mobile phone.
R the
mobile phone is connected to COMAND
via Bluetooth ®
.
If you cannot make an emergency call, you
must arrange rescue measures yourself.
X Enter numbers using the number keypad
(Y page 200).
X Press the 6 button.
The telephone makes the connection.
X Wait for the emergency call center to
respond

and then describe the emergency.
i If
no SIM card has been inserted in a GSM
phone or if there is no service available for
a CDMA phone, the NO SERVICE message
appears in COMAND. In this case, an
emergency call can only be transmitted via
the mobile phone itself and not via
COMAND. Telephony via the Bluetooth
®
interface
Conditions On the mobile phone
For telephony via COMAND's Bluetooth
®
interface, a Bluetooth ®
-capable mobile
phone is required.
i Not all mobile phones available on the
market are equally suitable. More detailed
information

on suitable mobile phones and
on connecting Bluetooth ®
-capable mobile
phones with COMAND can be found on the
Internet at
http://www.mbusa-mobile.com. Or call
the Mercedes-Benz Customer Assistance
Center on
1-800-FOR-MERCedes(1-800-367-6372)
(for the USA) or Customer Relations on
1-800-387-0100 (for Canada).
The battery of the mobile phone should
always be kept sufficiently charged in order
to prevent malfunctions. In preparation for telephoning via the
Bluetooth
®
interface, you should check the
following

items on your mobile phone (see the
mobile phone operating instructions):
X Hands-Free Profile
The mobile phone must support Hands-
Free Profile 1.0 or above.
i Certain
displays and functions (e.g. signal
strength display, conference connection)
are available, depending on the supported
version of the Hands-Free Profile.
X Bluetooth ®
visibility
On
certain mobile phones, the device itself
must be made "visible" for other devices,
as well as activating the Bluetooth ®
function (see the mobile phone operating
instructions).
X Bluetooth ®
device name
Every Bluetooth ®
device has its own
Bluetooth ®


device name. This device name
is freely definable, but can be identical for
all devices from the same manufacturer. It
is therefore recommended that you change
this name so that you can easily recognize
your mobile phone (see the mobile phone
operating instructions).
X Switch on the mobile phone and enter the
PIN when prompted to do so (see the
mobile phone operating instructions).
X Activate Bluetooth ®
functions and, where
necessary, Bluetooth ®
visibility on the
mobile phone (see the mobile phone
operating instructions).
In COMAND
X Activate the Bluetooth ®
function in
COMAND (Y page 147).
Connecting a mobile phone General information
Before using your mobile phone with
COMAND for the first time, you will need to
connect it. Telephone
195
COMAND Z

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible.
Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 31). Exterior lighting
Important safety notes
For reasons of safety, Mercedes-Benz
recommends that you drive with the lights
switched

on even during the daytime. In some
countries, operation of the headlamps varies
due to legal requirements and self-imposed
obligations. Information about driving abroad
Converting to symmetrical low beam
when

driving abroad: switch the headlamps
to symmetrical low beam in countries in
which traffic drives on the opposite side of the
road to the country where the vehicle is
registered. This prevents glare to oncoming
traffic. Symmetrical lights do not illuminate
as large an area of the edge of the road.
Have the headlamps converted at a qualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center, as close to the border
as possible before driving in these countries.
Converting to asymmetrical low beam
after returning: have the headlamps
converted back to asymmetrical low beam at
a qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center, as soon as
possible after crossing the border again. Light switch
Operation Depending on the date of manufacture of your
vehicle, the c or à symbol for the
automatic headlamp mode/daytime running
lamps is located on the light switch. 1W
Left-hand standing lamps
2X Right-hand standing lamps
3$ Lights off/daytime running lamps
4c Automatic headlamp mode/daytime
running lamps
5T Parking lamps, license plate and
instrument cluster lighting
6L Low-beam/high-beam headlamps
7N Front fog lamps 11
8R Rear fog lamp
The turn signals, high-beam headlamps and
the
high-beam flasher are operated using the
combination switch (Y page 279).
! Switch off the parking lamps and standing
lamps when you leave the vehicle. This
prevents the battery from discharging.
The exterior lighting (except the parking/
standing lamps) switches off automatically if
you:
R remove the SmartKey from the ignition lock
R open the driver's door with the SmartKey
in position 0
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
11 Only
vehicles with Bi-Xenon headlamps without the Intelligent Light System are equipped with front fog lamps.276
Exterior lighting
Lights and windshield wipers

Rear-compartment overhead control panel
:
Reading lamp
; Press p consecutively:
to switch the reading lamp and interior
lighting on
to switch only the reading lamp on
to switch the reading lamp off
= Interior lighting Interior lighting control
Important notes In order to prevent the vehicle's battery from
discharging,
the interior lighting functions are
automatically deactivated after some time
except for when the SmartKey is in position
2 in the ignition lock.
Automatic interior lighting control X
To switch on/off: press the | button.
The
OFF indicator lamp shows whether the
automatic interior lighting control is
deactivated (indicator lamp on) or
activated (indicator lamp off).
The interior lighting automatically switches
on if you:
R unlock the vehicle
R open a door
R remove

the SmartKey from the ignition lock
The interior light is activated for a short while
when the SmartKey is removed from the
ignition lock. You can activate this delayed
switch-off using COMAND ( Y page 263).Manual interior lighting control X
To switch the front interior lighting on/
off: press the c button.
X To switch the rear interior lighting on/
off: press the u button.
X To switch the reading lamps on/off:
press the p button. Replacing bulbs
Important safety notes
Xenon bulbs If your vehicle is equipped with Xenon bulbs,
you can recognize this by the following: the
cone of light from the Xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the lights must be switched on
before starting the engine.
G
DANGER
Xenon bulbs carry a high voltage. You could
get
an electric shock and be seriously or even
fatally injured if you touch the electric
contacts on Xenon bulbs. Therefore, never
remove the cover from Xenon bulbs.
Do not change Xenon bulbs yourself, but have
them replaced at a qualified specialist
workshop which has the necessary specialist
knowledge and tools to carry out the work
required.
Mercedes-Benz recommends that you use an
authorized Mercedes-Benz Center for this
purpose. In particular, work relevant to safety
or on safety-related systems must be carried
out at a qualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly. 282
Replacing bulbs
Lights and windshield wipers

Windows fogged up on the outside
X
Switch on the windshield wipers.
X Activate automatic climate control.
i You should only select this setting until
the windshield is clear again. Rear window defroster
Activating/deactivating G
WARNING
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the window is clear as it only switches
off automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X Turn the SmartKey to position 2 in the
ignition lock.
X Press the ¤ rocker switch up or down.
The indicator lamp in the ¤ rocker
switch lights up or goes out.
Problems with the rear window
defroster The rear window defroster has deactivated
itself prematurely or cannot be activated.
X
Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically. Activating/deactivating air-
recirculation mode
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle from outside. The air already inside the
vehicle will then be recirculated. G
WARNING
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press the ¬
button.
X Turn the SmartKey to position 2 in the
ignition lock.
X To activate: press the g rocker switch
up or down.
The indicator lamp in the g rocker
switch lights up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. The indicator lamp in the
g rocker switch is not lit when
automatic air-recirculation mode is
activated.
Outside air is added after about 30
minutes.
X To deactivate: press the g rocker
switch up or down.
The indicator lamp in the g rocker
switch goes out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes if
outside

temperatures are less than about
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes if outside
temperatures are over about
41 ‡ (5 †) Operating the climate control system
297
Climate control Z