MERCEDES-BENZ CLA 2018 Owners Manual

X
Slide catch D in the direction of arrow

Overview of climat ec ontrol systems
General notes Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To preven tt he 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 dehumidifica-
tion function R
switch on the defrost windshield function
briefly, if required
The air-conditionin gs ystem or dual-zon ea uto-
matic climate control regulates the temperature
and the humidity of the vehicle interior and fil-
ters undesirable substances from the air.
The air-conditionin gs ystem or dual-zon ea uto-
matic climate control can only be operated
when the engin eisr unning. Optimum operation
is only achieved with the side windows and pan-
orama roof with power tilt/sliding panel closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated ( Y
page 83).
The residual heat function can only be activated
or deactivated with the ignition switched off
( Y
page 119). Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear
( Y
page 106). Otherwise the vehicle will not be
ventilated correctly.
i Ventilate the vehicle for ab rief period during
warm weather, e.g. using the convenience
opening feature ( Y
page 83). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
i The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. Ac logged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should alway so bserve
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 Book-
let.
i It is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the auto-
mat ic climate control. The vehicle is then ven-
tilated for 30 minutes.110
Overview of climat ec ontrol systems
Climat ec ontrol

Air-conditionin gs ystem cont rol panel
US Ao nl y
C
Sets th et em perature ( Y
page 116)D
Defrost st he windshield ( Y
page 117)

Control panel for dual-zone automatic climat ec ontrol
US Ao nl y
C
Set st he temperature, left ( Y
page 116)D
Set sc limate control to automatic ( Y
page 116)

Canada on ly
C
Set st he temperature, left ( Y
page 116)D
Set sc limate control to automatic ( Y
page 116)

instructions .Y ou will see the current settings
of the various climat ec ontrol functions.
DYNAMIC SELECT button (except
Mercedes-AM Gv ehicles)You can choose betwee nv arious drive programs
with the DYNAMI CS ELEC Tb utton
( Y
page 128).
If you have selected drive program E :R
when heating, the electrical heate rb ooster is
deactivate da nd in the warming-up phase
heat output is reduced R
the rear window defroster running tim ei s
reduced
Dependin gont he configuration, climat es et-
tings may also be influenced in the drive pro-
gram I .
If you have selected drive program C or S ,c li-
mate settings are not influenced.
ECO start/stop function Durin ga utomatic engin es witch-off, the climate
control system only operates at ar educed capa-
city. If you require the full climat ec ontrol output,
you can switc ho ff the ECO start/sto pf unction
by pressing the ECO button ( Y
page 127).
Operating th ec limate control sys-
tems
Activating/deactivating climate con-
trol
General notes When the climat ec ontrol is switched off ,t he air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switc ho ff
climat ec ontrol only briefly
Air-conditioning system X
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 122).X
To switch on: turn control

Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and P Solutions
The indicator lamp in the
Z button flashes
three times or remains
off. The "Cooling with air
dehumidification" func-
tion cannot be switched
on. Cooling with air dehumidification has been deactivated due to am al-
function. X
Visit aq ualified specialist workshop.
Setting climate control to automatic
General notes The automatic climate control function is only
available in conjunction with dual-zone auto-
matic climate control.
In automatic mode, the set temperature is main-
tained automatically at ac onstant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
Setting climate control to automatic X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 122).X
Set the desired temperature. X
To activate: press the X button.
The indicator lamp in the X button lights
up. Automatic air distribution and airflow are
activated. X
To switch to manua lm ode: press the O
or J button.
or X
Press the

i You can also activate several air distribution
settings simultaneously. To do this ,p ress
multiple air distribution buttons .T he air is
the nd irected through various vents.
i Regardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be close di f
the adjusters are turned clockwise until they
engage.
Setting th ea ir distributionX
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 122).X
Press one or more of the

The climate control system switches to the
following functions: R
high airflow R
high temperature R
air distribution to the windshield and front
side windows R
air-recirculation mode off
i The "Windshield defrosting" function auto-
matically sets the blower level to the optimum
defrosting effect .Asar esult, the airflow may
increase or decrease automatically after the
d button is pressed.
i You can adjust the blower level manually
while the "Windshield defrosting" function is
in operation: R
Air-conditioning system: turn airflow con-
trol