2015 MERCEDES-BENZ C-Class SEDAN roof

Problems with the side windows
G
WARNING
If you close a side window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing feature is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, releasethe switch or push the switch again to reopen the side window. Problem
Possible causes/consequences and
0050 0050Solutions A side window cannot
be closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects.
X Close the side window. A side window cannot
be closed and you can-
not see the cause. If a side window is obstructed during closing and reopens again
slightly:
X Immediately 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: X Immediately 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. Sliding sunroof
Important safety notes
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In this section, the term "sliding sunroof" refers to both types of sliding sun-
roof. G
WARNING
While opening and closing the sliding sunroof, body parts in close proximity could become
trapped. There is a risk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro- cedures. If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped. G
WARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are left unsupervised. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. Sliding sunroof
101Opening and closing Z

!
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 inte-
rior.
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.
Only for vehicles with panorama roof with
power tilt/sliding panel: G
WARNING
At high speeds the raised sliding sunroof auto- matically lowers slightly at the rear. This could
trap you or other persons. There is a risk of
injury. Make sure that nobody reaches into
the sweep of the sliding sunroof whilst the
vehicle is in motion.
If somebody becomes trapped, immediately
pull back the sliding sunroof switch. The slid- ing sunroof lifts during opening. Sliding sunroof reversing feature
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In this section, the term "sliding sunroof" refers to both types of sliding sun-
roof.
The sliding sunroof is equipped with an auto-
matic reversing feature. If a solid object
blocks or restricts the sliding sunroof during
the closing process, the sliding sunroof opens again automatically. The automatic reversing feature is only an aid and is no substitute for
your attention when closing the sliding roof. G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 1/6 in(4 mm) of the closing
movement
R during resetting
R when closing the sliding sunroof again man-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. 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 release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The closing process is stopped. Operating the sliding sunroof
Opening and closing Overhead control panel
0043 To raise
0044 To open
0087 To close/lower 102
Sliding sunroofOpening and closing

X
Turn the SmartKey to position 1or 2in the
ignition lock (Y page 157).
X Press or pull the 0057switch in the corre-
sponding direction.
If you press or pull the 0057switch beyond
the point of resistance, automatic operation
is started in the corresponding direction. You can stop automatic operation by pressing or
pulling again.
When opening and raising the roof, automatic
operation is only available if the sliding sun-
roof is in the closed position.
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.
You can continue to operate the sliding sun-
roof after switching off the engine or remov-
ing the SmartKey from the ignition lock. This
function is available for up to five minutes or
until the driver's or front-passenger door is
opened.
Resetting !
If the sliding sunroof still cannot be
opened or closed fully after resetting, con- tact a qualified specialist workshop.
Reset the sliding sunroof if it does not move
smoothly. X Turn the SmartKey to position 1or 2in the
ignition lock.
X Raise the sliding sunroof fully at the rear
(Y page 102).
X Keep the 0057switch pressed for another
second.
X Make sure that the sliding sunroof can be
fully opened and closed again
(Y page 102).
X If this is not the case, repeat the steps
above again. Operating the panorama roof with
power tilt/sliding panel
Opening and closing Overhead control panel
0043
To raise
0044 To open
0087 To close/lower
The panorama roof with power tilt/sliding
panel can only be operated when the roller
sunblind is open.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 157).
X Press or pull the 0057switch in the corre-
sponding direction.
If you press or pull the 0057switch beyond
the point of resistance, automatic operation
is started in the corresponding direction. You can stop automatic operation by pressing or
pulling again.
If the panorama roof with power tilt/sliding
panel is raised at the rear, it automatically
lowers slightly at higher speeds. The noise
level in the vehicle interior is reduced as a
result. At low speeds it raises again automat-
ically.
You can continue to operate the panorama
roof with power tilt/sliding panel after you
switch off the engine or remove the Smart-
Key. This function remains active for five
minutes or until you open a front door.
When a roof carrier is mounted the panorama
roof with power tilt/sliding panel cannot be
opened. The panorama roof with power tilt/ Sliding sunroof
103Opening and closing Z

sliding panel can still be raised to allow ven-
tilation of the vehicle interior. If the panorama
roof with power tilt/sliding panel makes con- tact with a roof carrier approved by
Mercedes-Benz, the sunroof will lower slightly
but remain raised at the rear.
Rain-closing feature The raised sliding sunroof automatically low-
ers at the rear when driving if it starts to rain.
The sliding sunroof is lowered depending on:
R the road speed and
R the intensity of the rain.
You can manually cancel the automatic clos-
ing procedure. Press or pull the 0057switch
in any direction.
To raise the sliding sunroof again, press the
0057 switch in direction 0043.
The "Rain-closing feature when driving" func- tion is deactivated, until you:
R press or pull the 0057switch in any direc-
tion or
R turn the SmartKey to another position in
the ignition lock (Y page 157).Operating the roller sunblinds for the
panorama roof with power tilt/sliding panel
Important safety notes G
WARNING
When opening or closing the roller sunblind,
parts of the body could be trapped between
the roller sunblind and the frame or sliding
sunroof. There is a risk of injury.
When opening or closing make sure that no
parts of the body are in the sweep of the roller sunblind.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction The opening or closing procedure will be stop-
ped.
The roller sunblinds shield the vehicle interior from sunlight. The front roller sunblind can
only be opened and closed when the sliding
sunroof is closed.
Roller sunblind reversing feature The roller sunblinds are equipped with an
automatic reversing feature. If a solid object
blocks or restricts a roller sunblind during the closing process, the roller sunblind opens
again automatically. However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing the roller sunblinds. G
WARNING
The reversing feature especially does not
react to soft, light and thin objects such as
small fingers. This means that the reversing
feature cannot prevent someone being trap-
ped in these situations. There is a risk of
injury.
When closing make sure that no parts of the
body are in the sweep of the roller sunblind.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the
switch briefly in any direction
The closing process is stopped. 104
Sliding sunroofOpening and closing

Opening and closing the roller sun-
blinds Overhead control panel
0043
To open
0044 To open
0087 To close
You can only close the roller sunblinds when
the panorama roof with power tilt/sliding
panel is closed.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 157).
X Press the 0057switch in direction 0043.
Both roller sunblinds open, then the pano-
rama roof with power tilt/sliding panel is
raised.
X Pull the 0057switch in direction 0044.
The sunblinds open
X Pull the 0057switch in direction 0087.
The roller sunblinds close when the pano-
rama roof with power tilt/sliding panel is
closed.
If you press or pull the 0057switch beyond
the point of resistance, automatic operation
is started in the corresponding direction. You
can stop automatic operation by pressing or
pulling again. Resetting the panorama roof with
power tilt/sliding panel or the front
roller sunblind
Reset the panorama roof with power tilt/slid-
ing panel or the front roller sunblind if the
panorama roof with power tilt/sliding panel
or the roller sunblinds does not move
smoothly.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 157).
X Pull the 0057switch repeatedly to the point
of resistance in the direction of arrow 0043
until the panorama roof with power tilt/
sliding panel is fully closed.
X Keep the 0057switch pulled for an addi-
tional second.
X Pull the 0057switch in the direction of
arrow 0043repeatedly until the front roller
sunblind is closed.
X Keep the 0057switch pulled for an addi-
tional second.
X Make sure that the panorama roof with
power tilt/sliding panel (Y page 103) and
the front roller sunblind (Y page 105) can
be fully opened again.
X If this is not the case, repeat the steps
above again. Sliding sunroof
105Opening and closing Z

Problems with the sliding sunroof
G
WARNING
If you close the sliding sunroof again immediately after it has been blocked or reset, the sliding
sunroof closes with increased or maximum force. The reversing feature is then not active. Parts of the body could be trapped in the closing area in the process. This poses an increased risk of
injury or even fatal injury.
Make sure that no parts of the body are in the closing area.
If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, push the switch briefly in any direction
The closing process is stopped.
! If the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact
a qualified specialist workshop. Problem
Possible causes/consequences and
0050 0050Solutions The sliding sunroof or
panorama roof with
power tilt/sliding panel
cannot be closed and
you cannot see the
cause. If the sliding sunroof or panorama roof with power tilt/sliding
panel is obstructed during closing and reopens again slightly:
X Immediately after it blocks, pull the 0057switch down again to
the point of resistance until the sliding sunroof or panorama roof
with power tilt/sliding panel is closed.
The sliding sunroof or panorama roof with power tilt/sliding
panel is closed with more force.
If the sliding sunroof or panorama roof with power tilt/sliding
panel is obstructed again during closing and reopens again
slightly: X Immediately after it blocks, pull the 0057switch down again to
the point of resistance until the sliding sunroof or panorama roof
with power tilt/sliding panel is closed.
The sliding sunroof or panorama roof with power tilt/sliding
panel is closed without the anti-entrapment feature. 106
Sliding sunroofOpening and closing

Problems with the seat heating
Problem
Possible causes/consequences and
0050
0050Solutions The seat heating has
switched off prema-
turely or cannot be
switched on. The on-board voltage is too low because too many electrical con-
sumers are switched on.
X Switch off electrical consumers that you do not need, such as
the rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating can be
switched back on manually. Switching the seat ventilation on/off
Activating/deactivating The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 157).
X To switch on: press button0043repeatedly
until the desired ventilation level is set.
X To switch off: press button0043repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature (Y page 98). The seat ven-
tilation of the driver's seat automatically
switches to the highest level.
i When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation. 114
SeatsSeats, steering wheel and mirrors

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment 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 Read the information on qualified special-
ist workshops (Y page 26). Overview of climate control systems
Important safety notes
Observe the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air dehumidifi-
cation function
R switch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and air humidity in the vehicle interior. The
interior filter cleans the air, thus improving
the interior climate.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. Optimum climate control is only ach-
ieved with the side windows and roof closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 149).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 98). This
will speed up the cooling process and the desired interior temperature will be
reached more quickly.
i The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odors. A clogged filter reduces the amount of air supplied to the vehicle
interior. For this reason, you should alwaysobserve 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 acti-
vated automatically 60 minutes after the
SmartKey has been removed depending on various factors, e.g. the outside tempera-
ture. The vehicle is then ventilated for
30 minutes to dry the climate control sys-
tem. 138
Overview of climate control systemsClimate control