2012 MERCEDES-BENZ S-Class trunk

Even with the SmartKey removed from the
starter switch or the SmartKey with KEYLESS-
GO removed from the vehicle, the remote
trunk opening/closing switch can be
operated. Therefore, do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury.GWARNING
Make sure the trunk lid is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter the vehicle interior resulting
in unconsciousness and death.
You can open and close the trunk lid from the
driver's seat when the vehicle is stationary
and unlocked.
XTo open: press remote operating switch for
trunk lid : until the trunk lid opens.XTo close: press remote operating switch
for trunk lid : until the trunk lid is closed.
Locking the trunk separately
You can lock the trunk separately. If you then
unlock the vehicle centrally, the trunk
remains locked and cannot be opened.
XClose the trunk lid.XTake the mechanical key out of the
SmartKey ( Y page 81).XInsert the mechanical key into the trunk lid
lock as far as the stop.XTurn the mechanical key clockwise from
position 1 to position 2.XRemove the mechanical key.XInsert the mechanical key into the
SmartKey.
Unlocking the trunk (mechanical key)
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
If the trunk cannot be unlocked with the
SmartKey or KEYLESS-GO, use the
mechanical key.
If you use the mechanical key to unlock and
open the trunk lid, the anti-theft alarm system
will be triggered ( Y page 75).
XTake the mechanical key out of the
SmartKey ( Y page 81).XInsert the mechanical key into the trunk lid
lock as far as the stop.Trunk91Opening/closingZ

XTurn the mechanical key counter-clockwise
from position 1 as far as it will go to
position 2.
The trunk is unlocked.XTurn the mechanical key back to position
1 and remove it.XInsert the mechanical key into the
SmartKey.
Trunk emergency release
You can open the trunk lid from inside the
vehicle with the emergency release button.
XBriefly 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
GWARNING
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.
GWARNING
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.
92Side windowsOpening/closing

NaviAudioTelephoneVideoVehicleModeFM/AM radioVideo DVDECOMap orientationSat radioAUXMulticontour
seat/lumbar
settingsPoint of interest
symbols on the mapDiscVideo offRear window
blindTraffic symbols on the
mapMemory cardEASY-ENTRY/
EXIT systemText information on
mapMUSIC
REGISTERExterior
lighting
delayed
switch-offO Topographical
mapMedia
InterfaceInterior
lighting
delayed
switch-offO City viewUSBAmbient
lightingO Freeway
informationRearO Automatic
mirror fold-in
functionO Volume reductionAUXO Locator
lightingSIRIUS serviceAudio offO Automatic
lockingMap versionO Interior
motion sensorO Tow-away
alarmO Trunk lid
opening height
restrictionSPLITVIEW
SPLITVIEW allows you to simultaneously use
different COMAND functions on the front-
passenger side and on the driver's side.
Depending on the viewing angle of the display
(from the driver's seat or from the front-
passenger seat), you will see two different
displays.122At a glanceCOMAND

and turning cVd the COMAND controller
and press W to confirm.XSelect Active Source for Rear and
press W to confirm.
In the status bar at the top, you will see the
headphones icon and the _ icon for the
source that has been switched on.XTo switch off the function in COMAND:
switch on the desired audio mode in
COMAND or show the menu in video DVD
mode.XSelect the menu item at the bottom left,
e.g. CD in audio CD mode, by sliding VÆ
and turning cVd the COMAND controller
and press W to confirm.XSelect Rear OFF _ and press W the
COMAND controller to confirm.
Adjusting the brightness, contrast or
color
XSelect Source in the rear-compartment
screen and press the 9 button on the
remote control to confirm.XSelect Display Aux or Disk Drive Aux
and press the 9 button to confirm.XSelect Brightness , Contrast or Color
and press the 9 button to confirm.
An adjustment scale appears.XSelect a setting using the 9 or :
button and press the 9 button to confirm.
Changing the picture format
XSelect Source in the AUX menu and press
the 9 button on the remote control to
confirm.XSelect Display Aux or Disk Drive Aux
and press the 9 button to confirm.XSelect Auto16:9 optimized , 4:3 or
Widescreen using the 9: buttons
and press the 9 button to confirm.
The ä icon in front of a menu item
indicates the current setting.Vehicle
Vehicle functions
General notes
In this menu, you can set the following vehicle
functions:
R ECO
R multicontour seat settings
R rear window blind
R EASY-ENTRY/EXIT feature
R exterior lighting delayed switch-off
R interior lighting delayed switch-off
R ambient lighting
R automatic folding mirror
R locator lighting
R automatic locking feature
R trunk lid opening height restriction
You can open the "Vehicle" menu in one of
two ways.
Opening the "Vehicle" menu from the
main area in the center of the display
:"Vehicle" menu item;Main areaXSelect Vehicle in the main function bar by
sliding XVY and turning cVd the
COMAND controller and press W to
confirm.
Main area ; is active.XSelect the individual vehicle functions by
sliding XVY or turning cVd the COMAND
controller and press W to confirm.260VehicleCOMAND

turning cVd the COMAND controller and
press W to confirm.
The main area is active.XSelect the Automatic Locking function
by sliding XVY or turning cVd the
COMAND controller and press W to
confirm.
Activating/deactivating the trunk lid
opening height restriction
XTo activate/deactivate the trunk lid
opening height restriction: select
Vehicle in the main function bar by sliding
XVY and turning cVd the COMAND
controller and press W to confirm.
The main area is active.XSelect the Trunk Opening-height
Restriction function by sliding XVY or
turning cVd the COMAND controller and
press W to confirm.
Automatic climate control
Introduction to automatic climate
control
You can operate automatic climate control
using COMAND or the buttons on the upper
section of the center console ( Y page 291).
Several special automatic climate control
functions can only be adjusted using
COMAND.
You can access the automatic climate control
menu via the air-conditioning function bar.
To do so, make certain that the SmartKey is
in position 2 in the ignition lock.
Air-conditioning function bar
:To set the temperature, left;To set the air distribution, left=To set the airflow, left?Climate control main menu
( Y page 266)ATo set the airflow, rightBTo set the air distribution, rightCTo set the temperature, right
Setting the temperature
You can set the temperature separately for
the driver’s and front-passenger side.
XSelect left temperature display : or right
temperature display C in the air-
conditioning function bar by turning cVd
the COMAND controller and press W to
confirm.Vehicle265COMANDZ

use a sponge and cold water to clean it. DEF
residues crystallize after time and
contaminate the affected surfaces.
! DEF is not a fuel additive and must not be
added to the fuel tank. If DEF is added to
the fuel tank, this can lead to engine
damage.
i If you are adding between maintenance
intervals, add approximately 1 gallon (3.8 l)
of DEF to the DEF tank. One gallon (3.8 l)
of DEF is approximately 2 DEF refill bottles.
Then, have the DEF supply checked and
filled completely if necessary. For this
purpose, Mercedes-Benz recommends a
qualified specialist workshop.
Further information on DEF ( Y page 527).
The filler neck for DEF is located under the
"Minispare" emergency spare wheel in the
trunk floor.XSwitch off the ignition.XOpen the trunk.XLift up the trunk floor ( Y page 436).XTurn the "Minispare" emergency spare
wheel fastening in the direction of the
arrow and remove it.XRemove the "Minispare" emergency spare
wheel.XTurn DEF cap : counter-clockwise and
remove it.XTurn DEF filler cap ; counter-clockwise
and open it.
Filler cap ; is secured with a plastic strap.XUnscrew the covering cap from DEF refill
bottle =.XPlace DEF refill bottle = on the filler neck
as shown and screw on clockwise hand-
tight.
! Only screw on the DEF refill bottle hand-
tight. It could otherwise be damaged.
322RefuelingDriving and parking

XPress DEF refill bottle = down.
The DEF tank is filled. This may take up to
one minute.
i If the DEF refill bottle is no longer pressed
down, the filling process stops and the
partially emptied bottle can be removed.
XRelease DEF refill bottle =.XTurn DEF refill bottle = counter-clockwise
and remove it.XPlace DEF filler cap ; on the filler neck and
turn it clockwise.XInsert DEF cap : as shown and turn it
clockwise as far as it will go.XPlace the "Minispare" emergency spare
wheel in the emergency spare wheel well
above the DEF tank.XInsert the "Minispare" emergency spare
wheel fastening and tighten clockwise.XFold the trunk floor down.XClose the trunk lid.XDrive at a speed above 10 mph (16 km/h).
The Check Additive See Operator's
Manual message goes out after
approximately one minute.
i If the Check Additive See
Operator's Manual message remains
shown in the multifunction display, add an
additional bottle of DEF.
i Then, have the DEF supply checked at a
qualified specialist workshop and
completely refilled if necessary.
Parking
Important safety notes
GWARNING
Do not park this vehicle in areas where
combustible materials can come into contact
with the hot exhaust system. Combustible
materials, such as grass, hay or leaves could
be ignited by the hot exhaust system and
cause a vehicle fire. Do not park the vehicle
on dry grassland or harvested grain fields.
Unintended vehicle movement can cause
serious personal injury or damage to the
vehicle or the vehicle drivetrain. To reduce
such risks, always do the following before
turning off the engine and leaving the vehicle:
R keep your right foot on the brake pedal.
R engage the electric parking brake.
R shift the automatic transmission into park
position P.
R slowly release the brake pedal.
R when parked on an incline, always turn the
front wheels towards the road curb.
R turn the SmartKey in the ignition lock to
position 0 and remove the SmartKey from
the ignition lock, or press the KEYLESS-GO
Start/Stop button.
R take the SmartKey with you and lock the
vehicle when leaving.
Switching off the engine
Important safety notes
GWARNING
Do not turn off the engine before the vehicle
has come to a complete stop. With the engine
not running, there is no power assistance for
the brake and steering systems. In this case,
it is important to keep in mind that a
considerably higher degree of effort is
necessary to brake and steer the vehicle.
Parking323Driving and parkingZ

1 in the ignition lock or if the ignition has
been switched on using the Start/Stop
button.
Engaging the electric parking brake
automatically
The electric parking brake is automatically
applied if HOLD or DISTRONIC PLUS brakes
the vehicle until it is stationary and at least
one of the following conditions is fulfilled:
R the engine is switched off.
R the driver's door is open and the seat belt
is not fastened.
R the hood is released.
R the trunk lid is opened while the automatic
transmission is in position R.
R the vehicle is stationary for a lengthy
period.
The red F (USA only) or ! (Canada
only) indicator lamp in the instrument cluster
lights up.
i In addition to the electric parking brake,
P may also be engaged automatically.
Releasing the electric parking brake
automatically
The electric parking brake is released
automatically when the following conditions
are simultaneously fulfilled:
R the engine is running.
R the automatic transmission is in position
D or R.
R the hood is closed.
R your seat belt is fastened.
R you depress the accelerator pedal.
If the automatic transmission is in position
R , the trunk lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you shift out of P or you have previously
driven faster than 3 km/h.
R you have shifted out of P or you have
previously driven faster than 2 mph
(3 km/h).
Emergency braking
The vehicle can also be braked during an
emergency using the electric parking brake.
XWhile driving, push handle : of the electric
parking brake ( Y page 324).
i
The vehicle is braked as long as you keep
the handle of the electric parking brake
pressed. The longer the electric parking
brake handle is depressed, the greater the
braking force.
During braking:
R a warning tone sounds.
R the Please Release Parking Brake
message appears.
R the red F (USA only) or ! (Canada
only) indicator lamp in the instrument
cluster lights up.
When the vehicle has been braked to a
standstill, the electric parking brake is
engaged.
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharge.
XConnect a trickle charger.
i You can obtain information about trickle
chargers from a qualified specialist
workshop, e.g. an authorized Mercedes-
Benz Center.
Parking325Driving and parkingZ