MERCEDES-BENZ C-CLASS ESTATE 2021 Owners Manual

Switching climate control on/oM via the rear oper-
ating unit
Switching on
Press button 4.
or
Set the airOow to level 1 or higher using but-
tons 3 and 5.
or
Press button 2, 6 , 8 or C.
Switching oM
Press button 4.
or
Set the airOow to level 0 using buttons 3 and
5 .%If rear climate control is switched oM via but-
ton 4, OFF will be shown on the rear display.
Calling up the air conditioning menu
The air conditioning menu can be called up via the
air conditioning line. The air conditioning line is
always shown on the lower edge of the central
display.Select the Climate menu entry in the air con-
ditioning line.
The First row of seats menu is opened.
Demisting the windscreen
To activate: press 0064 on the climate bar on
the central display.To deactivate: press 0064, 0058 or O on
the climate bar of the central display
or
set the airOow to 0.%When the defrost function is activated, some
functions, such as the temperature setting,
are automatically deactivated.Activating/deactivating the A/C function via the multimedia system
Multimedia system:
4 Climate menu 5
First row of seats
Depending on the external conditions, improved
cooling and dehumidiNcation of the interior air are
supported when the A/C function is activated.
Select A/C (A/C).
Setting climate control to automatic mode
In automatic mode, the set vehicle interior tem-
perature is controlled automatically and main-
tained at a constant level by the air supply.
Press AUTO on the climate bar on the central
display.%You can increase or reduce the airOow by
pressing 0097 on the climate bar on the mul-
timedia system.To switch to manual operation: switch oM
automatic mode or adjust an aspect of air dis-
tribution, e.g. 009C.Climate control149

Setting the air distribution
Multimedia system:4 Climate menu
Select First row of seats or Second row of
seats .To set the air distribution: select 0061, 009C
or 009B .Set the airOow.%Several air distribution options can be selec-
ted at the same time, for example to set theclimate control for the windscreen and thefootwells simultaneously. However, at least
one zone is always active. When the air condi-
tioning system is switched oM, the buttons
remain operable and the last setting is auto- matically saved.
The 0061 climate control for the windscreen
can only be selected for the Nrst seat row.%When the automatic mode is activated, the
buttons for adjusting the air distribution are
automatically disabled.Setting the rear climate control
Multimedia system:
4 Climate menu
Setting the temperature
Select Second row of seats .Set the temperature.
Sets the airOow
Select Second row of seats .Set the air Oow with 007E or 007D .
Controlling the rear climate control automatically
Select AUTO.%When the defrost function is activated, some
functions, such as the temperature setting,
are automatically deactivated. To deactivate the defrost function, either press 0064, 0058
or O or set the air volume to level 0
(  page 149).
Deactivating rear climate control
Select REAR OFF .Activating/deactivating the climate control syn-
chronisation function via the air conditioning con-
trol panel
Climate control can be set centrally using the syn-
chronisation function. The temperature and air
distribution settings for the driver's side will be
adopted automatically for the front passenger side.
Press the  button.
The synchronisation function will be deactivated if
the settings for one of the other climate controlzones are changed.
Activating/deactivating the climate control syn-chronisation function via the multimedia system
Multimedia system:
4 Climate menu
Climate control can be set centrally using the syn-
chronisation function. The driver's settings for
temperature, airOow and air distribution will be
adopted automatically for all climate zones.
Select First row of seats .150Climate control

Select SYNC (SYNC).
Activating/deactivating the climate control syn-
chronisation function via the rear operating unit
The rear climate control can be set centrally using
the synchronisation function. The temperature
and air distribution settings for one side are auto-
matically applied to the other side.
Press button A.
Demisting the windows
Windows misted up on the inside
Press 0058 on the climate bar on the central
display.If the windows remain misted up: press 0064
on the climate bar on the central display.
Windows misted up on the outside
Switch on the windscreen wipers.Press 0058 on the climate bar on the central
display.Switching air-recirculation mode on/oMPress the 0072 button.
The interior air will be recirculated.
Air-recirculation mode automatically switches to
fresh air mode aser some time.
%If air-recirculation mode is switched on, the
windows may mist up more quickly. Switch on
air-recirculation mode only brieOy.
Switching residual heat on/oM
Requirements:
= The residual heat function is available.
= The vehicle is parked.
= The coolant temperature is suPciently high.
It is possible to make use of the residual heat
from the engine to continue heating or ventilating
the front compartment of the vehicle for approx- imately 30 minutes, depending on the tempera-
ture set.
To switch on: select Residual heat on the cli-
mate bar on the central display.Residual heat will be switched oM automatically.%If residual engine heat utilisation is activated,
the two buttons for setting the temperature
and air distribution are automatically deactiva-
ted.
Activating/deactivating ionisation
Multimedia system:
4 Climate menu 5
Air quality
Ionisation improves the quality of the vehicle's interior air. Ionisation of the interior air is odour-less.
Select Ionisation .%The function can only be performed if the
AUTO mode is activated or the air distribution is set to the side air vent. The function isrestricted if the side air vents on the driver'sside are closed.Climate control151

Fragrance system

qActivating or deactivating the fragrance system
Requirements: = The THERMATIC or THERMOTRONIC air condi-
tioning control panel is available.
= Automatic climate control is activated.
= The glove compartment is closed.
Multimedia system: 4 VehicleVehicle
The fragrance system distributes a pleasant fra-
grance throughout the vehicle interior from a Oa-
con located in the glove box.
To call up the climate control bar: navigate
down until the climate control bar is active.Call up the A/C (A/C) air conditioning menu.Select Air freshener .Activate or deactivate fragrancing.Adjust the intensity.%The climate control bar can be called up from
any menu.
q Setting the fragrance system
Requirements: = The THERMATIC or THERMOTRONIC air condi-
tioning control panel is available.
= The climate control system is switched on.
= The glove compartment is closed.
= A Oacon is inserted.
Multimedia system: 4 Climate menu 5
Air quality
The fragrance system distributes a pleasant fra-
grance throughout the vehicle interior from a Oa-
con located in the glove box.Select Air freshener .Keep pressing until the desired intensity is
reached.
q Inserting or removing the Oacon of the fra-
grance system&WARNING Risk of injury from liquid per-
fume
If children open the Oacon, they could drink
the liquid perfume or it could come into con-
tact with their eyes.
Do not leave children unattended in the
vehicle.Consult a doctor immediately if liquid
perfume has been drunk.If liquid perfume comes into contact with
your eyes or skin, rinse your eyes with
clean water.If symptoms continue, consult a doctor.152Climate control

+ENVIRONMENTAL NOTE Environmental
damage due to improper disposal of full
Oacons
Full Oacons must not be disposed of
with household waste.

Full Oacons must be taken to a
harmful substance collection point.
1Cap2FlaconTo insert: slide the Oacon into the holder as far
as it will go.To remove: aser opening the glove box, wait
for approximately seven seconds and pull out
the Oacon.If you do not use genuine Mercedes-Benz interior
perfumes, observe the manufacturers' safety noti-ces on the perfume packaging.
Dispose of the genuine Mercedes-Benz interior
perfume Oacon when it is empty and do not reNll
it.
ReNllable OaconUnscrew the cap of the empty Oacon.Fill the Oacon with a maximum of 15 ml.Screw the cap back on to the Oacon.
Always reNll the empty reNllable Oacon with the
same perfume. Observe the separate information
sheet with the Oacon.
Information on the windscreen heater
&WARNING Risk of burns from touching the
windscreen when the windscreen heater
is switched on
The windscreen can become very hot when
the windscreen heater is switched on.
Climate control153

The health of persons with limited temperature
sensitivity or a limited ability to react to high
temperatures may be aMected or they may
even suMer burn-like injuries.Do not touch the windscreen while the
windscreen heater is switched on.Allow the windscreen to cool down
before touching it.
The windscreen heater will be enabled automati-
cally if 0064 is activated on the climate bar on the
central display.
Aser the vehicle is started, the windscreen heater
is switched on automatically as required.
Pre-entry climate control for departure time

q Pre-entry climate control for departure time
function
&WARNING Danger to life due to exposure
to extreme heat or cold in the vehicle
If people, particularly children, are exposed to
extreme temperatures over an extended
period of time, there is a risk of serious injury
or danger to life.
Never leave persons, children in particu-
lar, unattended in the vehicle.&WARNING Risk of burns due to repeatedly
switching on the seat heating
Repeatedly switching on the seat heating can
cause the seat cushion and seat backrest pad-
ding to become very hot.
In particular, the health of persons with limited
temperature sensitivity or a limited ability to
react to high temperatures may be aMected or
they may even suMer burn-like injuries.
Do not repeatedly switch on the seat
heating.To protect against overheating, the seat heating
may be temporarily deactivated aser it is
switched on repeatedly.%This function is available only in vehicles with a 48 V on-board electrical system (EQ Boost
technology).
The air inside the vehicle can be heated, ventila- ted or cooled to the set temperature when thevehicle is parked.
When the vehicle is connected to power supply equipment, priority is given to charging the 48 V
battery to a speciNed minimum charge.
The running time of pre-entry climate control may be reduced under the following conditions:
= The vehicle is not connected to power supply
equipment.
= The 48 V battery is not fully charged.
With active pre-entry climate control, the charge level of the 48 V battery may be reduced, even if the charging cable connector is connected.
154Climate control

If present, seat ventilation is activated in cooling
and ventilation mode.
Depending on the vehicle's equipment, the follow-
ing functions are activated in heating mode, if
available:
= Seat heating
= Steering wheel heater
= Mirror heater
= Rear window heater
= Windscreen heater
When the set temperature is changed, climate
control mode will automatically be updated and
switched from heating mode to ventilation or cool-
ing mode, from cooling mode to ventilation or
heating mode or from ventilation mode to heating or cooling mode.
q Setting pre-entry climate control for departure
time
Multimedia system:
4 Climate menu 5
Pre-entry climate ctrl
Setting the departure timeSelect Edit departure time

Depending on the vehicle's equipment, the follow-
ing functions will also be adjusted during pre-
entry climate control if they have already been
switched on during regular vehicle operation:
= Fragrancing
= Ionisation
Stationary heater/ventilation

qStationary heater/ventilation function
= The air inside the vehicle is heated or ventila-
ted to the set temperature.
= The air inside the vehicle cannot be cooled
down to temperatures below the outside tem- perature.
= If the outside temperature changes, ventilation
mode automatically switches to heating mode
or heating mode automatically switches to
ventilation mode.
The stationary heater and the exhaust gas outlet
are situated behind the right-hand front wheel.

q Switching the stationary heater/ventilation
on/oM via the operating unit&DANGER Risk of fatal injury due to poison-
ous exhaust gases
If the tailpipe is blocked or suPcient ventila-
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter the vehi- cle. This is the case in enclosed spaces or if
the vehicle gets stuck in snow, for example.
Always switch the stationary heater oM in
enclosed spaces without an air extrac-
tion systems, e.g. in garages.Keep the tailpipe and the area around
the vehicle free from snow when the
engine or the stationary heater are run-
ning.Open a window on the windward side of
the vehicle to ensure an adequate supply
of fresh air.&WARNING Risk of Nre due to hot station-
ary heater components and exhaust gases
Flammable materials such as leaves, grass or
twigs may ignite.
When the stationary heater is switched
on, make sure that:
= hot vehicle parts do not come into
contact with Oammable materials.
= the exhaust gas can Oow out of the
stationary heater exhaust pipe unhin-
dered.
= the exhaust gas does not come into
contact with Oammable materials.*NOTE Battery discharge caused by sta-
tionary heater or stationary ventilation operation
Operating the stationary heater or stationary
ventilation drains the battery.
Aser heating or ventilating the vehicle
twice, drive for a longer period of time.156Climate control

Requirements: = The outside temperature is below 15 °C.
= The fuel tank is suPciently full.%If the Nll level of the fuel tank is too low, the
auxiliary heating mode may be restricted.Set the temperature using the 0082 arrows
on the climate bar on the central display.Press button 003B .
The red or blue indicator lamp on button 003B
will light up or go out.
The colours of the indicator lamp have the follow- ing meanings:
= Blue: stationary ventilation is switched on.
= Red: the stationary heater is switched on.
= Yellow: the departure time is preselected.
The stationary heater/ventilation will switch oM
automatically aser 50 minutes.
Operation using the app: the stationary heater/
ventilation can also be operated via the Mercedes me connect app. You can Nnd further information
in the separate Owner's Manual at https:// moba.i.daimler.com/markets/ece-row/baix/
cars/connectme/en@GB/#emotions/
Startseite.html.

q Setting the stationary heater/ventilation via the
multimedia system
Multimedia system:
4 Climate menu 5
Stationary heater
Selecting the departure timeSelect the time Time A, Time B or Time C .
Setting the departure time
Select the time Time A, Time B or Time C .Select the pen beside the time.Set a time.
Air vents

qAdjusting the front air vents
&WARNING Risk of burns and frostbite due
to being too close to the air vents
Very hot or very cold air can Oow from the air
vents.
Make sure that all vehicle occupants always maintain a suPcient distance
from the air vents.If necessary, direct the airOow to another
area of the vehicle interior.
To guarantee the Oow of fresh air through the air
vents into the vehicle interior, comply with the fol- lowing:
= Always keep the vents and ventilation grilles in
the vehicle interior clear.
= Keep the air inlet free of residue build-up
(  page 321).
Climate control157

To open or close: hold air vent 1 in the
centre and turn it to the les (open) or right
(closed) as far as it will go.To set the airOow direction: hold air vent 1 in
the centre and move it up or down or to the
les or right.

qAdjusting the rear air vents
To open or close: turn controller 1 to the les
or right as far as it will go.To set the airOow direction: hold controller 1
in the centre and move it up or down or to the les or right.158Climate control