wheel MERCEDES-BENZ S-Class 2012 W221 Service Manual

To stop steering wheel and seat movement,
do one of the following:
R move the seat adjustment switch.
R move the steering column adjustment
switch.
R press one of the memory function position
buttons or memory button M.
Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Children could open the driver's door and
unintentionally activate the EASY-ENTRY/
EXIT feature. This could result in an accident
and/or serious personal injury.GWARNING
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in
motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
! Do not activate the EASY-ENTRY/EXIT
feature, if the seat backrest is reclined too
far backwards. This can damage the front
or rear seats. You must first move the
backrest to a vertical position.
Position of the steering wheel and the
driver's seat when the EASY-ENTRY/
EXIT feature is active
The steering wheel tilts upwards and the
driver's seat moves backwards if you:
R remove the SmartKey from the ignition lock
R open the driver's door when the SmartKey
is in the ignition lock or KEYLESS-GO is in
position 1
i The steering wheel only moves upwards if
it has not already reached the upper end
stop. The driver's seat only moves
backwards if it is not already in the
rearmost position.
Position of the steering wheel and the
driver's seat for driving
If you insert the SmartKey into the ignition
lock with the driver's door closed, depending
on the setting, the position of the steering
wheel and the driver's seat will be changed to
the previously set position.
The last position of the steering wheel or seat
is stored if:
R the ignition is switched off or
R the setting is stored with the memory
function.
Crash-responsive EASY-EXIT feature
If the crash-responsive EASY-EXIT feature is
triggered in an accident, the steering column
will move upwards when the driver's door is
opened. This occurs irrespective of the
position of the SmartKey in the ignition lock.
This makes it easier to exit the vehicle and
rescue the occupants.
The crash-responsive EASY-EXIT feature is
only operational if the EASY-EXIT/ENTRY
feature is activated in the on-board computer.
Mirrors
Exterior mirrors
Adjusting the exterior mirrors
GWARNING
Exercise care when using the passenger-side
exterior rear view mirror. The mirror surface
is convex (outwardly curved surface for a
wider field of view). Objects in mirror are
closer than they appear. Check your interior
rear view mirror and glance over your
shoulder before changing lanes.
The exterior mirrors are automatically heated
if the rear window defroster is switched on
and the outside temperature is low.
Mirrors111Seats, steering wheel and mirrorsZ

XMake sure that the SmartKey is in position
1 or 2 in the ignition lock.XPress button ; for the right-hand exterior
mirror or button = for the left-hand
exterior mirror.
The indicator lamp lights up in the button
that has been pressed.XPress adjustment button : up, down, to
the right or to the left until the exterior
mirror is set to a position that provides you
with a good overview of traffic conditions.
Folding the exterior mirrors in or out
electrically
XMake sure that the SmartKey is in position
1 or 2 in the ignition lock.XBriefly press button :.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while the vehicle is
in motion, as they may otherwise vibrate.
Folding the exterior mirrors in or out
automatically
When the "Automatic mirror folding" function
is activated in COMAND ( Y page 262):
R the exterior mirrors fold in automatically as
soon as you lock the vehicle from the
outside.
R the exterior mirrors fold out again
automatically as soon as you unlock the
vehicle and then open the driver's or front-
passenger door.
i The mirrors do not fold out if they have
been folded in manually.
Exterior mirror out of position
If an exterior mirror has been pushed out of
position, proceed as follows:
XPress the mirror-folding button
( Y page 112) repeatedly until you hear the
mirrors engage in position.
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
( Y page 111).
Automatic anti-glare mirrors
GWARNING
If incident light from headlamps is prevented
from striking the sensor in the rear-view
mirror, for instance, by luggage piled too high
in the vehicle, the mirror's automatic anti-
glare function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident.
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
glare mode if the ignition is switched on and
incident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or the interior lighting
is switched on.
112MirrorsSeats, steering wheel and mirrors

Parking position for the exterior
mirror on the front-passenger side
Setting and storing the parking position
You can position the front-passenger side
exterior mirror in such a way that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position.
XMake sure that the vehicle is stationary and
that the SmartKey is in position 2 in the
ignition lock.XPress button = for the exterior mirror on
the front-passenger side.XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.XUse adjustment button ; to adjust the
exterior mirror to a position that allows you
to see the rear wheel and the curb.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving
position.
i You can also store the parking position
using memory button M : .
XMake sure that the SmartKey is in
position 2 in the ignition lock.XWith the exterior mirror on the front-
passenger side activated, use
adjustment button ; to adjust the
exterior mirror to a position whichallows you to see the rear wheel and
the curb.XPress memory button M : and one of
the arrows on adjustment button ;
within three seconds.
The parking position is stored if the
exterior mirror does not move.
If the mirror moves out of position, repeat
the steps.
Calling up a stored parking position
setting
XTurn the SmartKey to position 2 in the
ignition lock.XAdjust the exterior mirror on the front-
passenger side with the corresponding
button ( Y page 111).XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger
side moves back to its original position:
R as soon as you exceed a speed of 9 mph
(15 km/h).
R about ten seconds after you have
disengaged reverse gear
R if you press button ? for the exterior
mirror on the driver's side
Memory function
Storing settings
With the memory function, you can store up
to three different settings, e.g. for three
different people.
The following settings are stored as a single
memory preset:
R seat, backrest, head restraint position and
contour of the backrest in the lumbar
region
R active multicontour seat: activated/
deactivated
Memory function113Seats, steering wheel and mirrorsZ

Rmulticontour seat: the side bolsters of the
seat cushion and the backrest as well as
the contour of the backrest in the lumbar
and shoulder regions
R driver's side: steering wheel position
R driver's side: position of the exterior
mirrors on the driver's and front-passenger
sidesGWARNING
Do not activate the memory function while
driving. Activating the memory function while
driving could cause the driver to lose control
of the vehicle.
XAdjust the seat ( Y page 104).XOn the driver's side, adjust the steering
wheel (Y page 110) and the exterior mirrors
( Y page 111).XPress memory button M and then press
storage position button 1, 2 or 3 within
three seconds until you hear an
acknowledgment tone.
The settings are stored in the selected
storage position.
Calling up a stored setting
XPress and hold the relevant storage
position button 1, 2 or 3 until the seat,
steering wheel and exterior mirrors are in
the stored position.
i If you release the storage position button,
the seat, steering wheel and mirror setting
functions stop immediately. The
multicontour seat setting or lumbar
support adjustment is still carried out.114Memory functionSeats, steering wheel and mirrors

For example, the "Navi" function can be used
from the driver's side while the "Video"
function is used on the front-passenger side.
Use the remote control to operate COMAND
from the front-passenger side with
SPLITVIEW.
Please bear the following in mind
R Your vehicle may be equipped with
SPLITVIEW, depending on its date of
production. The use of SPLITVIEW is
currently not permitted in the following
states: AL, AZ, CO, IL, LA, MA, MD, NH, PA,
VA, VT, WA, WI, and WV or in the Canadian
provinces of Manitoba, Newfoundland,
New Brunswick, and Prince Edward Island.
It is the driver's responsibility to observe
ALL regional legally prescribed regulations.
If your vehicle is registered in a state or
province in which SPLITVIEW is not
approved, this function must be
deactivated. Please contact an authorized
specialist dealer to check whether
SPLITVIEW is approved in your state or
province.
R Volume adjustment for the cordless
headphones can be carried out on the
headphones. Before putting on the
headphones, make sure that the volume
has not been set too high.
R The remote control can be used for the
volume adjustment of corded headphones.
R You can only use media from the driver's
and front-passenger sides separately if the
media are from different sources. Example:
on the driver's side, an audio CD is being
played by the DVD changer. This means
that on the front-passenger side, the DVD
changer cannot be used to play a different
disc type, for instance a video DVD.
However, other media can be used at the
same time on the front-passenger side,
including radio, memory card, MUSIC
REGISTER, Media Interface, USB or AUX.
R If you use the same medium on both sides,
settings for this medium can be carried out
from either side.R There must be intervisibility between the
headphones and the display so that
COMAND can optimally transmit music and
speech via the infrared signal on the front-
passenger's headphones. For this reason,
please also observe that the headphones
have left and right sides, and use them
correctly.
R Only entertainment functions, i.e. audio
and video, can be used separately via
SPLITVIEW.
R The multifunction steering wheel can only
be used for functions which relate to the
driver's side.
Switching SPLITVIEW on/offXTo switch on SPLITVIEW: select
Vehicle from the main function bar by
turning cVd the COMAND controller and
press W to confirm.
The "Vehicle" menu appears.XSelect SPLITVIEW ON .
SPLITVIEW symbol : appears in the
display, and display ; switches to
SPLITVIEW OFF .XTo switch off SPLITVIEW: select
Vehicle from the main function bar by
turning cVd the COMAND controller and
press W to confirm.
The "Vehicle" menu appears.XSelect SPLITVIEW OFF .
Display ; switches to SPLITVIEW ON .
i
If COMAND has already been switched
on, you can also use the remote control to
At a glance123COMANDZ

ECOMAND: 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 directlyFTo exit a menu (back)XPoint 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
XTurn 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.
XPoint the remote control at the rear-
compartment screen which has been
selected for remote operation.XPress 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
XPress 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.
MuteXPress 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.
XPress 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
XPress the =;9: buttons to
select the menu/menu item and press the
9 button to confirm.126At a glanceCOMAND

Option 1XSelect 4 or 5 in the character bar and
press W to confirm.
The input menu shows the data field
selected.:Cursor in the next data field;To store an entry=4 and 5 icons to select a data field
Option 2
XSlide ZV the COMAND controller
repeatedly until the character bar
disappears.XSelect the data field by sliding ZVÆ and
press W to confirm.
Storing an entry
XSelect ¬ in the character bar by turning
cVd the COMAND controller and press
W to confirm.
The entry is stored in the address book.
Further functions available in the
character bar
XTo switch the character bar to upper/
lower-case characters: select * or
E and press W to confirm.XTo switch the character set: select
p and press W to confirm.
The character set switches between
upper/lower-case letters and digits.XTo change the language of the
character bar: select B and press W
to confirm.XSelect the language by turning cVd the
COMAND controller and press W to
confirm.XTo reposition the cursor within the data
field: select 2 or 3 and press W to
confirm.:Cursor (repositioned);2 and 3 icon to reposition the cursorXDelete the character/entry ( Y page 207).
Basic functions of COMAND
Switching COMAND on/off
XPress the u function button on the
center console.
i If you switch off COMAND, playback of
the current audio or video source will also
be switched off. You cannot switch off
COMAND while making a call via COMAND.
You can also make phone calls using the
buttons on the multifunction steering
wheel when COMAND is switched off
( Y page 373).
At a glance133COMANDZ

Mute
Switching audio and video sources on/off
XPress the 8 button on the multifunction
steering wheel.
The sound from the respective audio or
video source is switched on or muted.
i When the sound is off, the system
displays the , symbol in the status line.
When you change the audio or video
source, or adjust the volume, sound
automatically switches on again.
i Even if the sound is switched off, you will
still hear traffic and navigation system
announcements.
Switching off Traffic program and
navigation announcements completely
XTraffic program: press the 8 button
until the . message disappears from the
status bar of the display.
A confirmation tone sounds.XNavigation announcements: during an
announcement, press the 8 button on
the multifunction steering wheel.
Switching Traffic program and navigation
announcements on again
XTraffic program: press and hold down the
8 button until the . display appears
in the status bar.
A confirmation tone sounds.XNavigation messages: select the y
symbol in the navigation menu bar and
press W to confirm.
i
The navigation announcements are
activated again if you switch COMAND off
and on again or start a new route guidance.
Adjusting the volume
Adjusting the volume for the audio or
video source
XTo adjust: turn thumbwheel :.
or
XPress the W or X button on the
multifunction steering wheel.
The volume of the currently selected audio
or video source changes.
You can also adjust the volume for the
following:
R traffic announcements
R navigation announcements
R phone calls
R Voice Control System (see the separate
operating instructions)
Adjusting the volume for navigation
announcements
During a navigation announcement:
XTurn thumbwheel :.
or
XPress the W or X button on the
multifunction steering wheel.
Adjusting the volume for phone calls
You can adjust the volume for hands-free
mode during a telephone call.
XTurn thumbwheel :.
or
XPress the W or X button on the
multifunction steering wheel.134At a glanceCOMAND

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 itemATo confirm a selection or settingBTo switch sound on/off (for corded
headphones)CTo adjust the volume (for corded
headphones)DTo skip; fast-forward/fast-rewindETo select a track; direct entryFTo 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.XTo select the left-hand screen: turn
thumbwheel = until " L REAR" is
highlighted in the window.XTo 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.
XPoint the remote control at the rear-
compartment screen which has been
selected for remote operation.XPress 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
XPress 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)
XPress button B on the remote control.
The sound is switched on/off.140At a glanceCOMAND

XSelect Cancel Route Guidance and press
W to confirm.
Continuing route guidance
XTo activate navigation mode: press the
S function button once or twice.XTo show the menu: press W the COMAND
controller.XSelect Destination in the navigation
system menu bar by turning cVd the
COMAND controller and press W to
confirm.XSelect Continue Route Guidance and
press W to confirm.
COMAND calculates the route.
Destination or area of destination
reached
When you reach your destination, COMAND
displays a checkered flag and route guidance
is automatically ended.
For certain points of interest (e.g. airports),
the Destination Reached display is shown
as well as the checkered flag.
Navigation announcements
Repeating navigation announcements
GWARNING
Navigation announcements are intended to
direct you while driving without diverting your
attention from the road and driving.
Please always use this feature instead of
consulting the map display for directions.
Looking at the icons or map display can
distract you from traffic conditions and
driving, and increase the risk of an accident.
i Audible navigation announcements are
muted during a telephone call.
If you have missed an announcement, you can
call up the current announcement at any
time.
XTo show the menu: press W the COMAND
controller.XIn the navigation menu bar, confirm RPT
with W.
Switching navigation announcements
on/off
XTo switch off: during the announcement,
press the 8 button on the multifunction
steering wheel.
You will briefly see the message: The
driving instructions have been
muted .XTo switch on: press W the COMAND
controller.XIn the + navigation menu bar, press W
to confirm.
i COMAND automatically switches the
navigation announcements back on when:
R you have a new route calculated.
R you start the engine again after having
left the vehicle.
Reducing volume during a navigation
announcement
The volume of an active audio or video source
can be automatically reduced during a
navigation announcement.
XSelect Navi in the main function bar by
sliding ZV and turning cVd the COMAND
controller and press W to confirm.XSelect Audio Fadeout and press W to
confirm.
The function is switched on O or off ª,
depending on the previous status.
Setting the volume manually
XSet the volume during a navigation
announcement.
or
XIn the map display when the menu is
shown, select + and adjust the volume.170NavigationCOMAND