MERCEDES-BENZ C-CLASS SALOON 2011 Owners Manual

Saloon
Left-hand side trim panel
Right-hand side trim panel
X
To open: turn rotary catch :90° in the
direction of the arrow and remove side trim
panel ;.
X To close: insert side trim panel ;and turn
release knob :90° in the opposite direc-
tion to the arrow.
Estate Left-hand side trim panel Right-hand side trim panel
X
To open: turn release knob :in the direc-
tion of the arrow and remove side trim
panel ;.
X To close: insert side trim panel ;and
press it down firmly until it snaps into place.
Tail lamps X
Switch off the lights.
X Open the boot or luggage compartment.
X Open the side trim panel (Y page 127). Saloon
Estate128
Changing bulbsLights and windscreen wipers

X
Remove the tail lamp connector
X Simultaneously press retainin glugs :in
the direction of the arrow and slightly pull
out the bulb holder with th ebulbs.
X Remove the connector for LED light func-
tions from the top of the bulb holder.
X Pull the bulb holder out with the bulbs. Saloon
:
reversing lamp
; brake lamp
= Side lamp/brake lamp Estate
:
reversing lamp
; brake lamp
= Side lamp/brake lamp
X Press the respective bulb :,;or= back
and tur nitanti-clockwise to remove it from
the bulb holder.
X Insert the new bulb into the bulb holde rand
turn it clockwise. X
Reinsert the connector for LED light func-
tions in the bulb holder.
X Insert the bulb holde ragain and lock it in
place.
X Insert the tail lamp connector.
X Close the side trim panel (Y page 127). Windscreen wipers
Switching the windscreen wipers on/
off
G
WARNING
The windscreen will not longer be wiped prop-
erly if the wiper blades are worn. This could
prevent you from observing the traffic condi-
tions, thereby causing an accident .Replace
the wiper blades twice a year, ideally in spring
and autumn.
! Do not operate the windscreen wipers
when the windscreen is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windscreen can
scratch the glass if wiping takes place when
the windscreen is dry.
! If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may
be due to wax or other residue. Clean the
windscreen with washer fluid after an auto-
matic car wash. Windscreen wipers
129Lights and windscreen wipers Z

Combination switch
1
$ Windscreen wipers off
2 Ä Intermittent wipe, low 10
3 Å Intermittent wipe, high 11
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/ îTo wipe the
windscreen using washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn the combination switch to the corre-
sponding position.
! Intermittent wiping with rain sensor: due
to optical influences and the windscreen
becoming dirty in dry weather conditions,
the windscreen wipers may be activated
inadvertently. This could damage the wind-
screen wiper blades or scratch the wind-
screen.
For this reason, you shoul dalways switch
off the windscreen wipers in dry weather.
In the ÄorÅ position, the appropriate
wiping frequency is set automatically accord-
ing to the intensity of the rain. In the Å
position, the rain sensor is more sensitive
than in the Äposition, causing the wind-
screen wiper to wipe more frequently. Switching the rea
rwindow wiper on/
off Combination switch
:
è Switch
2 ô To wipe with washer fluid
3 ITo switch on intermittent wiping
4 0To switch off intermittent wiping
5 ô To wipe with washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn switch :on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the icon appears in the instrumen tcluster. Replacing the wiper blades
Important safety notes G
WARNING
The wiper arms could star tmoving and cause
an injury if you leave the windscreen wipers
switched on.
Remove the key from the ignition lock before
replacing the wiper blades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
10 Rain sensor set to low sensitivity.
11 Rain sensor set to high sensitivity. 130
Windscreen wipersLights and windscreen wipers

!
Never open the bonnet if a windscreen
wiper arm has been folded away from the
windscreen.
Never fold a windscreen wiper arm without
a wiper blade back onto the windscreen/
rear window.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release
the windscreen wiper arm without a wiper
blade and it falls onto the windscreen, the
windscreen may be damaged by the force
of the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by aqualified
specialist workshop, e.g. at a Mercedes-
Benz Service Centre.
Replacing the windscreen wiper blades Removing the wiper blades
X
Remove the key from the ignition lock or
tur nthe key to position 0(KEYLESS-GO).
X Fold the wiper arm away from the wind-
screen until it engages.
X Set the wiper blade at right angles to the
wiper arm. X
Remove the wiper blade from the retaining
pin on the wiper arm in the direction of the
arrow.
Fitting the wiper blades
X Push the new wiper blade onto the retain-
ing pin on the wiper arm in the opposite
direction to the arrow. Make sure that the wiper blade slides fully
onto the retaining pin on the wiper arm.
X Turn the wiper blade parallel to the wiper
arm.
X Fold the wiper arm back onto the wind-
screen.
Replacing the rear window wiper blade G
WARNING
The wiper arm could be set in motion and
injure you if the windscreen wipers are
switched on.
Remove the key from the ignition lock before
replacing the wiper blade.
Removing the wiper blade X
Remove the key from the ignition lock.
X Fold wiper arm :away from the rear win-
dow until it engages.
X Position wiper blade ;at a right angle to
wiper arm :.
X Hold wiper arm :and press wiper
blade ;in the direction of the arrow until
it releases.
X Remove wiper blade ;.
Fitting the wiper blade
X Place new wiper blade ;onto wiper
arm :.
X Hold wiper arm :and press wiper
blade ;in the opposite direction to the
arrow until it engages. Windscreen wipers
131Lights and windscreen wipers Z

X
Make sure that wiper blade ;is seated
correctly.
X Position wiper blade ;parallel to wiper
arm :.
X Fold wiper arm :back onto the rear win-
dow. Problems with the windscreen wipers
The windscreen wipers are obstructed Leaves or snow, for example, may be
obstructing the windscreen wiper movement.
The wiper motor has been deactivated.
X For safety reasons, you should remove the
key from the ignition lock.
or
X Switch off the engine using the Start/Stop
button and open the driver's door.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on.
The windscreen wipers are inoperative The windscreen wiper drive is malfunctioning.
X
Select another wiper speed on the combi-
nation switch.
X Have the windscreen wipers checked at a
qualified specialist workshop.
The spray nozzles are misaligned The windscreen washer fluid from the spray
nozzles no longer hits the centre of the wind-
screen. The spray nozzles are misaligned.
X
Have the spray nozzles adjusted at a quali-
fied specialist workshop. 132
Windscreen wipersLights and windscreen wipers

Useful information
............................134
Overview of climate control sys-
tems ................................................... 134
Operating the climate control sys-
tem ..................................................... 137
Adjusting the air vents .....................147 133Climate control

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 28).Overview of climate control systems
Important safety notes
G
WARNING
Observe the settings recommended on the
following pages. Otherwise, th ewindows
could mist up. This may obstruct your view of
the traffic situation and, as a result, you may
cause an accident.
THERMATIC/THERMOTRONIC automatic cli-
mate control controls the temperature and
the humidity of the vehicle interior and filters
out undesirable substances fro mthe air.
THERMATIC/THERMOTRONIC automatic cli-
mate control is only operational when the
engine is running 12
.O ptimum operation is
only achieved when you drive with the side
windows and sliding sunroof/panorama slid-
ing sunroof closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 97). 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.
Aclogged 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 Service Booklet .As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i It is possible that the residual heat func-
tion may be activated automatically an hour
after the key is removed. The vehicle is then
ventilated for 30 minutes to dry the air-
conditioning system.
12 THERMOTRONIC automatic climate control: the residual heat function can only be activated/deactivated
when the ignition is switched off. 134
Overview of climate control systemsClimate control

Control panel for THERMATIC automatic climate control (2-zone)
:
Sets the temperature, left (Y page 138)
; Demists the windscreen (Y page 140)
= Activates/deactivates the ZONE function (Y page 140)
? Activates/deactivates coolin gwith air dehumidification ( Ypage 137)
A Switches the rear window heating on/off (Y page 141)
B Sets the temperature, right (Y page 138)
C Activates/deactivates air-recirculation mode (Y page 141)
D Sets the air distribution (Y page 139)
E Increases the airflow (Y page 139)
F Reduces the airflow ( Ypage 139)
G Switches climate control on/off (Y page 137)
H Sets climate control to automatic mode (Y page 138)Notes on using THERMATIC automatic
climate control
The following contains notes and recommen-
dations on optimum use of THERMATIC auto-
matic climate control.
R Activate climate control using the Ãand
¿ buttons .The indicator lamps in the
à and¿ buttons light up.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again. R
Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in a tunnel. The windows could oth-
erwise mist up, as in air-recirculation mode,
no fresh air is drawn into the vehicle.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp in the ábutton goes out. Overview of climate control systems
135Climate control Z

Control panel for THERMOTRONIC automatic climate control (3-zone)
Fron
tcontrol panel
: Sets the temperature, left (Y page 138)
; Demists the windscreen (Y page 140)
= Activates/deactivates the residual heat function (Y page 142)
? Activates/deactivates cooling with air dehumidificatio n(Ypage 137)
A Switches the rear window heating on/off (Y page 141)
B Sets the temperature, right (Y page 138)
C Activates/deactivates the ZONE function (Y page 140)
D Switches climate control on/off (Y page 137)
E Sets the air distribution (Y page 139)
F Increases the airflow (Y page 139)
G Reduces the airflow ( Ypage 139)
H Sets the climate mode (Y page 138)
I Activates/deactivates air-recirculation mode (Y page 141)
J Sets climate control to automatic mode (Y page 138)
Rear control panel
K Increases the airflow (Y page 139)
L Reduces the airflow ( Ypage 139)
M Display
N Reduces the temperature ( Ypage 138)
O Increases the temperature (Y page 138)136
Overview of climate control systemsClimate control

Notes on using THERMOTRONIC auto-
matic climate control
Below, you can find a numbe rofnotes and
recommendations to help you use
THERMOTRONIC automatic climate control
optimally.
R Switch on climate control using the Ã
and ¿ buttons. The indicator lamps in
the à and¿ buttons light up.
R In automatic mode, you can also use the
ñ button to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM level is recommended.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in a tunnel. The windows could oth-
erwise mist up, as in air-recirculation mode,
no fresh air is drawn into the vehicle.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side and the rear com-
partmen tas well.T he indicator lamp in the
á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off. Operating the climate control system
Switching climate control on/off
Important information i
When climate control is switched off, the
air supply and air circulation are also
switched off. Only select this setting
briefly. Otherwise, the windows may mist
up.
i Switch on climate control primarily using
the à button (Y page 138). Activating/deactivating X
Turn the key to position 2in the ignition
lock.
X To switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press button ^.
The indicator lamp in the ^button goes
out. The previously selected settings come
into effect again.
X To switch off: press the^button.
The indicator lamp in the ^button lights
up. Activating/deactivating the cooling
with air dehumidification function
Important information The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted.
G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident.
Condensation may drip from the underside of
the vehicle when THERMOTRONIC is in cool-
ing mode. This is normal and not a sign that
there is a malfunction.
i The cooling with air dehumidification
function uses refrigerant R134a. This cool-
ant does not contain chlorofluorocarbons,
and therefore does not damage the ozone
layer. Operating the climate control system
137Climate control Z