2014 MERCEDES-BENZ S-Class keyless

driver's door had been previously
unlocked
Automatic locking feature
X
To disarm: press and hold button 0043for
about five seconds until a tone sounds.
X To arm: press and hold button 0044for about
five seconds until a tone sounds.
i If you press one of the two buttons and
do not hear a tone, the relevant setting has
already been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore be locked out if:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is on a roller dynamometer.
i You can switch the automatic locking
function on and off using COMAND (see the
separate operating instructions). Power closing
Power closing pulls the doors and trunk lid
into their locks automatically even if they are
only partly closed. X
To power close a door: push the door into
the lock up to the first detent position.
Power closing will pull the door fully closed.
X To power close the trunk lid: lightly push
the trunk lid closed.
The power closing function pulls the trunk
lid closed. Unlocking the driver's door
(mechanical key)
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
X Take the mechanical key out of the
SmartKey (Y page 86).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Turn the mechanical key counter-clockwise
as far as it will go to position 0047and hold
it in this position.
The locking knob pops up and the door
unlocks.
X Turn the mechanical key back and remove
it.
X Insert the mechanical key into the
SmartKey.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 81). 92
DoorsOpening and closing

Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the
mechanical key.
X Open the driver's door.
X Close the front-passenger door, the rear
doors and the trunk lid.
X Press the locking button (Y page 91).
X Check whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs by hand, if necessary.
X Close the driver's door.
X Take the mechanical key out of the
SmartKey (Y page 86).
X Insert the mechanical key into the lock of
the driver's door as far as it will go. X
Turn the mechanical key clockwise as far
as it will go to position 0047.
The locking knob drops down and the
driver's door is locked.
X Turn the mechanical key back and remove
it.
X Make sure that the doors and the trunk lid
are locked.
X Insert the mechanical key into the
SmartKey.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Trunk
Important safety notes
G
WARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury,
particularly in the event of sudden braking or
a sudden change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
i The opening dimensions of the trunk lid
can be found in the "Vehicle data" section
(Y page 429).
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out.
You should preferably place luggage or loads
in the cargo compartment. Observe the
loading guidelines (Y page 316). Obstacle recognition with the trunk
lid reversing feature
On vehicles with trunk lid remote closing
feature, the trunk lid is equipped with
automatic obstacle recognition with
reversing function. If a solid object blocks or
restricts the trunk lid when automatically
opening or closing, this procedure is stopped.
If the trunk lid is stopped during the closing
procedure, it will open again automatically. Trunk
93Opening and closing Z

The automatic obstacle recognition with
reversing function is only an aid. It is not a
substitute for your attentiveness when
opening and closing the trunk lid. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small
fingers
R over the last 1/3 in(8 mm) of the closing
movement
This means that the reversing feature cannot
prevent someone being trapped in these
situations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
R press the 0054button on the SmartKey, or
R press the remote operating switch on the
driver's door, or
R press the closing or locking button on the
trunk lid, or
R pull on the trunk lid handle Opening and closing manually
Opening X
Press the 0054button on the SmartKey.
X Pull handle 0043.
X The trunk lid opens. Closing
X
Pull the trunk lid down using recess 0043.
Vehicles with trunk lid remote closing
feature or power closing:
X Lightly push the trunk lid closed.
The power closing function pulls the trunk
lid closed.
X Lock the vehicle if necessary with
the 0037 button on the SmartKey or with
KEYLESS-GO (Y page 85).
i If KEYLESS-GO detects a SmartKey in the
trunk, the trunk lid cannot be locked. It then
opens again. Opening/closing automatically from
outside
Important safety notes G
WARNING
Parts of the body could become trapped
during automatic closing of the trunk lid.
Moreover, people, e.g. children, may be
standing in the closing area or may enter the
closing area during the closing process. There
is a risk of injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process. 94
TrunkOpening and closing

Use one of the following options to stop the
closing process:
R Press the 0054button on the key.
R press the remote operating switch on the
driver's door.
R Press the closing or locking button on the
trunk lid.
R Pull the trunk lid handle. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is
a risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
i The opening dimensions of the trunk lid
can be found in the "Vehicle data" section
(Y page 429).
Opening You can open the trunk lid automatically
using the SmartKey or the handle in the trunk
lid.
X
Press and hold the 0054button on the
SmartKey until the trunk lid opens.
or
X If the trunk lid is unlocked, pull the trunk lid
handle and let it go again immediately. Closing X
To close: press closing button 0043in the
trunk lid.
Vehicles with trunk lid remote closing
feature and KEYLESS-GO: when all the
doors are closed, you can simultaneously
close the trunk lid and lock the vehicle. The
KEYLESS-GO key must be in the rear
detection range of the vehicle.
X Press locking button 0044in the trunk lid.
If KEYLESS-GO detects a SmartKey outside
the vehicle, the trunk lid closes and the
vehicle is locked.
i If KEYLESS-GO detects a SmartKey in the
trunk, the trunk lid opens again after it is
closed.
If KEYLESS-GO detects a second SmartKey
outside the vehicle, the trunk lid remains
closed. HANDS-FREE ACCESS
Important safety notes G
WARNING
The vehicle's exhaust system may be very hot.
You could burn yourself by touching the
exhaust system if you use HANDS-FREE
ACCESS. There is a risk of injury. Always
ensure that you only make the kicking
movement within the detection range of
sensors. Trunk
95Opening and closing Z

!
If the key is within the rear detection
range of KEYLESS-GO, the following
situations, for example, could lead to the
unintentional opening of the trunk:
R using a car wash
R using a power washer
Make sure that the key is at least 6.5 ft
(2 m) away from the vehicle.
General notes With KEYLESS-GO and HANDS-FREE
ACCESS, you can open or close the trunk lid
or stop the procedure without using your
hands. This is useful if you have your hands
full. To do this, make a kicking movement
under the bumper with your foot.
Observe the following points:
R Carry your KEYLESS-GO key about your
person. The KEYLESS-GO key must be in
the rear detection range of the vehicle.
R When making the kicking movement, make
sure that you are standing firmly on the
ground and that there is sufficient
clearance to the rear of the vehicle. You
could otherwise lose your balance e.g. on
ice. R
Always ensure that you only make the
kicking movement within the detection
range of sensors 0043.
R Stand at least 12 in (30 cm) away from the
rear area while doing so.
R Do not come into contact with the bumper
while making the kicking movement. Otherwise, the sensors may not function
correctly.
R HANDS-FREE ACCESS does not function
when the engine is started.
R If a KEYLESS-GO key is within the rear
detection range of KEYLESS-GO, HAND-
FREE ACCESS could be triggered. The trunk
lid could thus be opened or closed
unintentionally, for example, if you:
- set something down or lift something up
behind the vehicle.
- polish the rear of the vehicle.
Do not carry the KEYLESS-GO key about
your person in these situations or in
situations similar to these. This will prevent
the unintentional opening/closing of the
trunk.
R Dirt caused by road salt around
sensors 0043may restrict functionality.
R Using the HANDS-FREE ACCESS with a
prosthetic leg may restrict functionality.
Operation X
To open/close: kick into sensor detection
range 0043under the bumper with your foot.
You will hear a warning tone while the trunk
lid is opening or closing.
X If the trunk lid does not open after
several attempts: wait at least ten
seconds then move your leg under the
bumper once again.
i If you hold your foot under the bumper for
too long, the trunk lid does not open or 96
TrunkOpening and closing

Activating the function to lock the trunk
separately:
X Close the trunk lid.
X Open the glove box.
X Push the switch to position 0044.
If the vehicle is unlocked centrally, the
trunk remains locked.
i You can also lock the glove box
(Y page 317).
Deactivating the function to lock the trunk
separately:
X Open the glove box.
X Push the switch to position 0043.
If the vehicle is unlocked centrally, the
trunk will also be unlocked. 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, KEYLESS-GO or HANDS-FREE
ACCESS, 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. Switch off the alarm
(Y page 81).
X Take the mechanical key out of the
SmartKey (Y page 86).
X Insert the mechanical key into the trunk lid
lock as far as it will go. X
Turn the mechanical key counter-clockwise
as far as it will go from position 0047to
position 0048.
The trunk is unlocked.
X Turn the mechanical key back to position
0047 and remove it.
X Insert the mechanical key into the
SmartKey.
i When you lock the vehicle (Y page 93),
the trunk is also locked. Trunk emergency release
You can unlock the trunk lid from the inside
with the emergency release button. X
Press emergency release button 0043briefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked with the trunk
lid emergency release when the vehicle is
stationary or while driving.
The trunk lid emergency release does not
unlock the trunk lid if the battery is
disconnected or discharged. 98
TrunkOpening and closing

On vehicles with a panorama roof with power
tilt/sliding panel, you can then close the
roller sunblinds.
i Notes on the automatic reversing feature
for:
R the side window (Y page 99)
R the panorama roof with power tilt/
sliding panel (Y page 103)
Using the SmartKey X
Press and hold the 0037button until the
side windows and the panorama roof with
power tilt/sliding panel are fully closed.
X Make sure that all the side windows and the
panorama roof with power tilt/sliding
panel are closed.
On vehicles with a panorama roof with power
tilt/sliding panel:
X Press and hold the 0037button again until
the roller sunblinds of the panorama roof
with power tilt/sliding panel close.
X To interrupt convenience closing:
release the 0037button.
Using KEYLESS-GO The SmartKey must be outside the vehicle. All
the doors must be closed. X
Touch recessed sensor surface 0043on the
door handle until the side windows and the panorama roof with power tilt/sliding
panel are fully closed.
i Make sure you only touch recessed
sensor surface 0043.
X Make sure that all the side windows and the
panorama roof with power tilt/sliding
panel are closed.
X Touch recessed sensor surface 0043on the
door handle again until the roller sunblinds
of the panorama roof with power tilt/
sliding panel close.
X To interrupt convenience closing:
release recessed sensor surface 0043on the
door handle. Resetting the side windows
If a side window can no longer be closed fully,
you must reset it.
X Close all the doors.
X Turn the SmartKey to position 1or 2in the
ignition lock.
X Pull the corresponding switch on the door
control panel until the side window is
completely closed (Y page 99).
X Hold the switch for an additional second.
If the side window opens again slightly:
X Immediately pull the corresponding switch
on the door control panel until the side
window is completely closed (Y page 99).
X Hold the switch for an additional second.
X If the respective side window remains
closed after the button is released, then it
has been set correctly. If this is not the
case, repeat the steps above again. Side windows
101Opening and closing Z

Steering wheel heating
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 171).
X To switch on/off: turn the lever in the
direction of arrow 0043or0044.
Indicator lamp 0087lights up or goes out.
Vehicles without KEYLESS-GO: when you
remove the SmartKey from the ignition lock,
the steering wheel heating is deactivated.
Vehicles with KEYLESS-GO: when you switch
off the ignition and open the driver's door, the
steering wheel heating is deactivated. 128
Steering wheelSeats, steering wheel and mirrors