2014 MERCEDES-BENZ C-CLASS ESTATE Owners Manual

Activating/deactivating
THERMATIC automatic climate control (2-
zone) without auxiliary heating
X Press the 0rocker switch up or down.
The indicator lamp in the 0rocker
switch lights up or goes out.
or X Activate/deactivate the synchronisation
function using Audio 20/COMAND Online
(see the separate operating instructions).
The synchronisation function deactivates if
the settings for the front-passenger side are
changed.
THERMATIC automatic climate control (2- zone) with auxiliary heating
X Activate/deactivate the synchronisation
function using Audio 20/COMAND Online
(see the separate operating instructions).
The synchronisation function deactivates if
the settings for the front-passenger side are
changed.
THERMOTRONIC automatic climate con-
trol
X Activate/deactivate the synchronisation
function using Audio 20/COMAND Online
(see the separate operating instructions).
The synchronisation function is deactivated: R if the settings for the front-passenger side
are changed
R if the settings for the rear compartment are
changed Demisting the windscreen
General notes You can use this function to defrost the wind-
screen or to demist the inside of the wind-
screen and the front side windows.
Switch off the windscreen demisting function
as soon as the windscreen is clear again. Activating/deactivating the wind-
screen demisting function X
Turn the key to position 2in the ignition
lock (Y page 185).
X To activate: press the¬rocker switch
on the front control unit up or down.
The indicator lamp above the ¬rocker
switch lights up. The current climate con-
trol settings are deactivated.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windscreen and
front side windows
R air-recirculation mode off
i If necessary, the "Cooling with air dehu-
midification" function is activated. In this
case, the indicator lamp above the
¿ button remains switched off.
X To deactivate: press the¬rocker
switch up or down.
The indicator lamp above the ¬rocker
switch goes out. The previous settings are
reactivated. Air-recirculation mode
remains deactivated.
or
X Press the top or bottom section of the Ã
rocker switch. Demisting the windows
Windows misted up on the inside X
Activate the "Cooling with air dehumidifi-
cation" function with the ¿rocker
switch.
or
X Activate the cooling with air dehumidifica-
tion function via Audio 20/COMAND
Online; see the separate operating instruc-
tions.
For THERMOTRONIC automatic climate
control with auxiliary heating, the "Cooling 166
Operating the climate control systemClimate cont
rol

with air dehumidification" function can only
be activated using Audio 20/COMAND
Online.
X Switch on automatic mode using the Ã
rocker switch.
X If the windows continue to mist up, activate
the windscreen demisting function using
the ¬ rocker switch.
i You should only select this setting until
the windscreen is clear again.
Windows misted up on the outside X
Activate the windscreen wipers.
X Switch on automatic mode using the Ã
rocker switch.
i If you clean the windows regularly, they
do not mist up so quickly. Rear window heating
General notes The rear window heating has a high current
draw. You should therefore switch it off as
soon as the window is clear. It otherwise
switches off automatically after several
minutes.
If the battery voltage is too low, the rear win-
dow heating may switch off.
Activating/deactivating X
Turn the key to position 2in the ignition
lock (Y page 185).
X Press the ¤rocker switch up or down.
The indicator lamp above the ¤rocker
switch lights up or goes out. Operating the climate control system
167Climate control

Problems with the rear window heating
Problem
Possible causes/consequences and
M
MSolutions The rear window heat-
ing has switched off
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heat- ing can be activated again. Activating/deactivating air-recircula-
tion mode
General notes You can also temporarily deactivate the flow
of fresh air manually if unpleasant odours are
entering the vehicle from outside. The air
already inside the vehicle will then be recir-
culated.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, in particular
at low temperatures. Only use air-recircula-
tion mode briefly to prevent the windows
misting up.
Activating/deactivating X
Turn the key to position 2in the ignition
lock (Y page 185).
X To activate: press thegrocker switch
up or down.
The indicator lamp above the grocker
switch lights up.
Air-recirculation mode is activated automati-
cally: R at high outside temperatures
R at high levels of pollution (THERMOTRONIC
automatic climate control only)
R in a tunnel (vehicles with a navigation sys-
tem only)
The indicator lamp above the grocker
switch is not lit when automatic air-recircula- tion mode is activated. Outside air is added
after approximately 30 minutes. X
To deactivate: press thegrocker
switch up or down.
The indicator lamp above the grocker
switch goes out.
Air-recirculation mode is deactivated auto-
matically:
R after approximately five minutes at outside
temperatures below approximately 5 †
R after approximately five minutes if cooling
with air dehumidification is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 5 † if
the cooling with air dehumidification func-
tion is activated Convenience opening/closing using
the air-recirculation button
G
WARNING
When the convenience closing feature is oper- ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts of the body are in the closing area. G
WARNING
During convenience opening parts of the body could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury. 168
Operating the climate control systemClimate control

When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, press the Wswitch
immediately to open/close the side window
in the door. The side window stops. To con-
tinue closing the side window, pull on the
W switch.
X Convenience closing feature (vehicles
with a sliding sunroof/panorama slid-
ing sunroof): press and hold the g
rocker switch up or down until the side win- dows and the sliding sunroof/panorama
sliding sunroof start to close automatically.The indicator lamp above the grocker
switch lights up. Air-recirculation mode is
activated.
X Convenience closing feature (vehicles
without a sliding sunroof/panorama
sliding sunroof): press and hold the g
rocker switch up or down until the side win- dows start to close automatically.
The indicator lamp above the grocker
switch lights up. Air-recirculation mode is
activated.
If you open the side windows or the sliding sunroof/panorama sliding sunroof man-
ually after closing them with the conveni-
ence closing feature, they will remain in this
position when opened using the conveni-
ence opening feature.
If parts of the body are in the closing area
during convenience closing, proceed as fol-
lows:
X Press the Wbutton for opening/closing
the side windows.
The side windows stop.
X To then open the side window, press the
W button again.
X Only vehicles with sliding sunroof/
panorama sliding sunroof: press the3
switch to open/close the sliding sun-
roof/panorama sliding sunroof.
The sliding sunroof/panorama sliding sun-
roof stops.
X To then open the sliding sunroof/pano-
rama sliding sunroof, pull back on the 3
button.
Notes on the automatic reversing feature for:
R the side windows (Y page 107)
R the sliding sunroof/panorama sliding sun-
roof (Y page 111)
X Convenience opening feature (vehicles
with a sliding sunroof/panorama slid-
ing sunroof): press and hold the g
rocker switch up or down until the side win- dows and the sliding sunroof/panorama
sliding sunroof start to open automatically.
The indicator lamp above the grocker
switch goes out. Air-recirculation mode is
deactivated.
X Convenience opening feature (vehicles
without a sliding sunroof/panorama
sliding sunroof): press and hold the g
rocker switch up or down until the side win- dows start to open automatically.
The indicator lamp above the grocker
switch goes out. Air-recirculation mode is
deactivated. Activating/deactivating the residual
heat function
General notes The residual heat function is only available
with THERMOTRONIC automatic climate con- trol and THERMATIC automatic climate con-
trol with auxiliary heating.
Once the engine is switched off, it is possible
to make use of the residual heat of the engine to continue heating or ventilating the front
compartment of the vehicle for approximately
30 minutes. The heating or ventilation time
depends on the set interior temperature. Operating the climate control system
169Climate control Z

Activating/deactivating
X
Turn the key to position 0in the ignition
lock or remove it (Y page 185).
X To activate: press the!rocker switch
up or down.
The indicator lamp above the !rocker
switch lights up.
The blower will run at a low speed regardless of the airflow setting.
If you activate the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
X To deactivate: press the!rocker
switch up or down.
The indicator lamp above the !rocker
switch goes out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is switched on Perfume atomiser
Operating the perfume atomiser G
WARNING
If children open the perfume vial, they could
drink the perfume or it could come into con-
tact with their eyes. There is a risk of injury. Do not leave children unsupervised in the vehicle.
If the perfume liquid has been drunk, consult
a doctor. If perfume comes into contact with
your eyes or skin, rinse the eyes with clean
water. If you continue to experience difficul-
ties, consult a doctor. H
Environmental note Full perfume vials must not
be disposed of with house-
hold rubbish. They must be
collected separately and dis-
posed of in an environmen- tally responsible recycling
system.
Dispose of full perfume vials
in an environmentally
responsible manner and
take them to a special waste
collection point. :
Perfume lid
; Perfume vial
The perfume atomiser helps to improve driv-
ing comfort.
Using Audio 20/COMAND Online, you can:
R switch the perfume atomiser on/off (see
separate Audio 20/COMAND Online oper-
ating instructions)
R regulate the perfume intensity (see the sep-
arate Audio 20/COMAND Online operating
instructions)
The following conditions can affect your per-
ception of the perfume intensity:
R operating mode of the automatic climate
control
R interior temperature
R time of year/day
R air humidity
R physiological condition of occupants, e.g.
fatigue or hunger
The perfume atomiser can only be operated
when the automatic climate control is
switched on and is only active when the glove compartment is closed.
The perfume atomiser is provided with a pre-
filled perfume vial. You can also choose from 170
Operating the climate control systemClimate cont
rol

a variety of filled perfume vials and an empty
vial which you can fill yourself.
If you refill an empty perfume vial, observe the separate information sheet attached to the
vial.
! If you do not use genuine Mercedes-Benz
interior perfumes, observe the manufactur-
ers' safety notices on the perfume packag- ing.
Do not refill the pre-filled perfume vial when it
is empty. Dispose of the used vial after use.
X To insert the perfume vial: open the glove
compartment (Y page 371).
X Slide the perfume vial into the holder as far
as it will go.
X To remove the perfume vial: pull out the
perfume vial.
X To refill the perfume vial: unscrew the lid
of the empty perfume vial to refill it your-
self.
X Refill the vial with a maximum of 15 ml of
the desired liquid perfume.
X Screw the lid back on to the vial.
! Only refill the vial when you are outside
the vehicle. Otherwise, liquid perfume
could drip into the interior and contaminate it.
Always refill the empty refillable vial with the
same perfume. Otherwise, you might not ach-
ieve optimum results from the perfume atom-
iser. Operating the climate control system
171Climate control Z

Problems with the perfume atomiser
Problem
Possible causes/consequences and
M
MSolutions The vehicle interior is
not perfumed although
the perfume atomiser
has been activated. The perfume vial has not been pushed into the holder as far as it
will go.
X Slide the perfume vial into the holder as far as it will go. The perfume vial is not filled sufficiently.
X Pre-filled vials: dispose of the empty vial.
X Use a new pre-filled vial.
X Refillable vials: refill the vial with a maximum of 15 ml of the
same perfume. The perfume atomiser is faulty.
X Have the perfume atomiser checked at a qualified specialist
workshop. Ionisation
Ionisation is used to purify and freshen the air
in the vehicle interior, which is conducive to a
pleasant climate.
The ionisation of the interior air is odourless
and cannot, directly, be perceived in the vehi- cle interior.
You can switch ionisation on/off using Audio
20/COMAND Online (see the separate oper-
ating instructions).
Ionisation can only be operated when the
automatic climate control is switched on. The side air vent on the driver's side must be
open. Pre-entry climate control using the
key
General notes The "Pre-entry climate control via key" func-
tion is only available for hybrid vehicles.
Before getting in, the driver's seat area can be briefly warmed or ventilated in advance and
the air from the air vents can be pre-cooled. The high-voltage battery must be sufficiently
charged before "Pre-entry climate control via
key" can be activated.
When the vehicle is pre-cooled, the following
functions are activated:
R automatic climate control
R blower
R seat ventilation
If the vehicle is preheated, the seat heating is
activated.
If you have switched on the perfume atomiser or ionisation using Audio 20/COMAND
Online, it will be activated together with the
pre-entry climate control.
Activating the perfume atomiser/ionisation
(see separate Audio 20/COMAND Online
operating instructions).
Activating/deactivating "Pre-entry cli-
mate control via key" Before "Pre-entry climate control via key" can
be activated, you must activate the function
via Audio 20/COMAND Online (see separate operating instructions). 172
Operating the climate control systemClimate control

X
To activate pre-entry climate control
via key: unlock the vehicle with the key or
KEYLESS-GO.
The climate control functions are activated
for up to 2 minutes for pre-heating and pre- cooling.
To deactivate "Pre-entry climate control
via key": "Pre-entry climate control via key"
deactivates automatically when the engine is
started.
The following functions remain active after
the engine is started:
R seat heating (heating)
R seat ventilation (ventilation)
R perfume atomiser
R ionisation Operating the climate control system
173Climate control Z