2012 MERCEDES-BENZ S-CLASS SEDAN sunroof

XMake sure that all the side windows and the
sliding sunroof or panorama roof with
power tilt/sliding panel are closed.XTo interrupt convenience closing:
release recessed sensor surface : on the
door handle.
On vehicles with roller sunblinds:
XTouch the recessed sensor surface on the
door handle again until the roller sunblinds
close.XTo interrupt the roller sunblind closing
procedure: pull the exterior door handle
and hold it firmly.
Resetting the side windows
You must reset each side window if:
R a side window cannot be closed
automatically
R a side window opens again slightly after
being closed manually
XClose all the doors.XTurn the SmartKey to position 1 or 2 in the
ignition lock.XPull the corresponding switch on the door
control panel until the side window is
completely closed. ( Y page 96)XHold the switch for an additional second.
If the side window opens again slightly:
XImmediately pull the corresponding switch
on the door control panel until the side
window is completely closed ( Y page 96).XHold the switch for an additional second.XIf the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly.
If this is not the case, repeat the steps
above again.Problems with the side windows
Problem: a side window cannot be closed
because it is blocked by objects, e.g.
leaves in the window guide.XRemove the objects.XClose the side window.
Problem: a side window cannot be closed
and you cannot see the cause.
GWARNING
Closing the side windows with increased force
or without the anti-entrapment feature could
lead to serious or even fatal injury. Make sure
that nobody can become trapped when
closing the side windows.
If a side window is obstructed during closing
and reopens again slightly:
XImmediately after the window blocks, pull
the corresponding switch again until the
side window has closed.
The side window is closed with increased
force.
If a side window is obstructed again during
closing and reopens again slightly:
XImmediately after the window blocks, pull
the corresponding switch again until the
side window has closed.
The side window is closed without the anti-
entrapment feature.GWARNING
Pulling and holding the switch to close the
door window immediately after it had been
blocked two times will cause the door window
to close without the anti-entrapment feature
for as long as you hold the switch.
Sliding sunroof
Important safety notes
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In the following section, the
98Sliding sunroofOpening/closing

term "sliding sunroof" refers to both types of
sliding sunroof.GWARNING
When opening or closing the sliding sunroof,
make sure that there is no danger of anyone
being harmed by the opening/closing
procedure.
The sliding sunroof is equipped with
automatic operation and the anti-entrapment
feature. If the movement of the sliding sunroof
is blocked during the closing procedure, the
sliding sunroof will stop and open slightly.
The sliding sunroof operates differently when
the sliding sunroof switch is pressed and held.
See the "Problems with the sliding sunroof"
section for more details.
The opening/closing procedure of the sliding
sunroof can be immediately halted by
releasing the sliding sunroof switch or, if the
sliding sunroof switch was moved past the
resistance point and released, by moving the
sliding sunroof switch in any direction.
GWARNING
The sliding sunroof is made out of glass. In the
event of an accident, the glass may shatter.
This may result in an opening in the roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury for
occupants wearing their seat belts properly,
as entire body parts or portions of them may
protrude from the passenger compartment.
! Only open the sliding sunroof if it is free
of snow and ice. Otherwise, malfunctions
may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
! The weather can change abruptly. It could
start to rain or snow. Make sure that the
sliding sunroof is closed when you leave the
vehicle. The vehicle electronics can be
damaged if water enters the vehicle
interior.
i Resonance noises can occur in addition
to the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open a side window slightly to reduce or
eliminate these noises.
Operating the sliding sunroof
Opening and closing
i You can continue to operate the sliding
sunroof after switching off the engine or
removing the SmartKey from the ignition
lock. This function remains active for five
minutes or until you open a front door.
Overhead control panel
:To raise;To open=To close/lowerXTurn the SmartKey to position 1 or 2 in the
ignition lock.XPress or pull the 3 switch in the
corresponding direction.
i If you press the 3 switch beyond the
point of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
Sliding sunroof99Opening/closingZ

The automatic raising feature is available
only when the sliding sunroof is closed.
The automatic opening feature is available
only when the sliding sunroof is not raised.
The sun protection cover automatically opens
along with the sliding sunroof. You can open
or close the sun protection cover manually
when the sliding sunroof is raised or closed.
Resetting
Reset the sliding sunroof if it does not move
smoothly.
XTurn the SmartKey to position 2 in the
ignition lock.XRaise the sliding sunroof fully at the rear
( Y page 99).XKeep the 3 switch pressed for another
second.XMake sure that the sliding sunroof can be
fully opened and closed again (Y page 99).XIf this is not the case, repeat the steps
above again.
! If the sliding sunroof still cannot be
opened or closed fully after resetting,
contact a qualified specialist workshop.
Operating the panorama roof with
power tilt/sliding panel
Opening and closing
Overhead control panel
:To raise;To open=To close/lower
The panorama roof with power tilt/sliding
panel can only be operated when the roller
sunblind is open.
i If the front roller sunblind is closed, it
opens first when the panorama roof with
power tilt/sliding panel is raised.
XTurn the SmartKey to position 1 or 2 in the
ignition lock.XPush or pull the 3 switch in the
corresponding direction.
i If you press the 3 switch beyond the
point of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
Operating the roller sunblinds for the
panorama roof with power tilt/sliding
panel
General notes
The roller sunblinds shield the vehicle interior
from sunlight. The front roller sunblind can
only be opened and closed when the
100Sliding sunroofOpening/closing

panorama roof with power tilt/sliding panel
is closed. The front and rear roller sunblinds
can be operated individually.
Operating the front roller sunblindGWARNING
When opening or closing the front roller
sunblind, make sure no one is in danger of
being injured by the opening or closing
procedure.
The front roller sunblind is equipped with
automatic operation and the anti-entrapment
feature. If the movement of the front roller
sunblind is blocked during the closing
procedure, the front roller sunblind will stop
and retract slightly.
The opening or closing of the front roller
sunblind can be immediately halted by
releasing the roof panel switch or, if the roof
panel switch was moved past the resistance
point and released, by moving the roof panel
switch in any direction.
Overhead control panel
:To open;To open=To closeXTurn the SmartKey to position 1 or 2 in the
ignition lock.XPress or pull the 3 switch in the
corresponding direction.
i If you press the 3 switch beyond the
point of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
Operating the rear roller sunblind
Operating from the front
GWARNING
When opening or closing the rear roller
sunblind, make sure no one is in danger of
being injured by the opening or closing
procedure.
The rear roller sunblind is equipped with
automatic operation and the anti-entrapment
feature. If the movement of the rear roller
sunblind is blocked during the closing
procedure, the rear roller sunblind will stop
and retract slightly.
The opening and closing of the rear roller
sunblind can be immediately halted by
pressing the sunblind switch again.
Overhead control panel
XTo open or close: press button :.
The rear roller sunblind opens or closes
fully.XTo stop: press button : again.
i
You must first open or close the rear roller
sunblind fully before you can move it in the
other direction.
Operating from the rear compartment
GWARNING
When opening or closing the rear roller
sunblind, make sure no one is in danger of
Sliding sunroof101Opening/closingZ

being injured by the opening or closing
procedure.
The rear roller sunblind is equipped with
automatic operation and the anti-entrapment
feature. If the movement of the rear roller
sunblind is blocked during the closing
procedure, the rear roller sunblind will stop
and retract slightly.
The opening or closing of the rear roller
sunblind can be immediately halted by
releasing the sunblind switch or, if the
sunblind switch was moved past the
resistance point and released, by pressing or
pulling the sunblind switch again.
Door control panel in rear
XTo open/close manually: press or pull
switch : to the point of resistance and
hold it until the rear roller sunblind has
reached the desired position.XTo open/close fully: press or pull
switch : beyond the point of resistance
and release it.
i You can stop automatic operation by
operating the switch again.
Resetting the panorama roof with
power tilt/sliding panel or the front
roller sunblind
Reset the panorama roof with power tilt/
sliding panel or the front roller sunblind if the
panorama roof with power tilt/sliding panel
or the roller sunblinds do not move smoothly.
! Do not open the panorama roof with
power tilt/sliding panel until it has been
reset correctly. The panorama roof with
power tilt/sliding panel can otherwise be
locked in the open position.XTurn the SmartKey to position 1 or 2 in the
ignition lock.XPull the 3 switch repeatedly to the point
of resistance in the direction of arrow
= (Y page 100) until the panorama roof
with power tilt/sliding panel is fully closed.XKeep the 3 switch pulled for an
additional second.XPull the 3 switch in the direction of
arrow =(Y page 101) repeatedly until the
front roller sunblind is closed.XKeep the 3 switch pulled for an
additional second.XMake sure that the panorama roof with
power tilt/sliding panel ( Y page 100) and
the front roller sunblind ( Y page 101) can
be fully opened again.XIf this is not the case, repeat the steps
above again.
Resetting the rear sunblind
Door control panel in rear
XTurn the SmartKey to position 1 or 2 in the
ignition lock.XPull switch : repeatedly until the rear
roller sunblind is fully closed.XKeep switch : pulled for an additional
second.102Sliding sunroofOpening/closing

XMake sure that the rear roller sunblind can
be opened fully again ( Y page 101).XIf this is not the case, repeat the steps
above again.
Problems with the sliding sunroof
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In the following section, the
term "sliding sunroof" refers to both types of
sliding sunroof.
Problem: the sunroof cannot be closed
and you cannot see the cause.
GWARNING
You could be severely or even fatally injured
when closing the sliding sunroof with
increased closing force or if the anti-
entrapment feature is deactivated. Make sure
that nobody can become trapped when
closing the sliding sunroof.
If the sliding sunroof is obstructed during
closing and reopens again slightly:
XImmediately after the sliding sunroof
blocks, pull the 3 switch in the
overhead control panel down to the point
of resistance and hold it until the sliding
sunroof is closed.
The sliding sunroof is closed with increased
force.
If the sliding sunroof is obstructed again
during closing and reopens again slightly:
XImmediately after the sliding sunroof
blocks, pull the 3 switch in the
overhead control panel down to the point
of resistance and hold it until the sliding
sunroof is closed.
The sliding sunroof is closed without the
anti-entrapment feature.GWARNING
Pressing and holding the sliding sunroof
switch to close the sliding sunroof
immediately after it had been blocked two
times will cause the sliding sunroof to close
without the anti-entrapment feature for as
long as you hold the switch.
! If the sliding sunroof still cannot be
opened or closed as a result of a
malfunction, contact a qualified specialist
workshop.Sliding sunroof103Opening/closingZ

Switching the seat heating on/off
Switching on/offGWARNING
Repeatedly setting the seat heating to level
3 may result in excessive seat temperatures.
The health of passengers that have limited
temperature sensitivity or a limited ability to
react to excessively high temperatures may
be affected or they may even suffer burn-like
injuries. Therefore, do not use seat heating
level 3 repeatedly.
The three red indicator lamps in the button
indicate the heating level you have selected.
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.
XMake sure that the SmartKey is in position
1 or 2 in the ignition lock.XTo switch on: press button : repeatedly
until the desired heating level is set.XTo 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.
XSwitch off electrical consumers that 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.
XMake sure that the SmartKey is in position
2 in the ignition lock.XTo 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 96). The seat
ventilation of the driver's seat
automatically switches to the highest level.
XTo switch off: press button : repeatedly
until all the indicator lamps go out.Seats113Seats, steering wheel and mirrorsZ

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).
Overview of climate control systems
Important safety notes
GWARNING
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A clogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
visibility and endangering you and others.
Have a blocked filter replaced at a Mercedes-
Benz Center as soon as possible.
GWARNING
Follow the recommended settings for heating
and cooling given on the following pages.
Otherwise, the windows could fog up,
impairing visibility and endangering you and
others.
Automatic climate control controls the
temperature and the humidity in the vehicle
interior and filters undesirable substances
from the air.
Automatic climate control is only operational
when the engine is running 16
. Optimum
operation is only achieved if you drive with the
side windows and sliding sunroof/panorama
roof with power tilt/sliding panel closed.
You can also set some automatic climate
control functions via COMAND (Y page 269).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 96).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can filter out most
particles of dust, and completely filters out
pollen. A clogged filter reduces the amount
of air supplied to the vehicle interior. For
this reason, you should always observe the
interval for replacing the filter, which is
specified in the Maintenance Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance
Booklet.
i It is possible that the blower may be
activated automatically 40 minutes after
the SmartKey is removed. The vehicle is
then ventilated for 30 minutes to dry the
air-conditioning system.16 The residual heat function can only be activated/deactivated if the ignition is switched off.294Overview of climate control systemsClimate control