Get Climate control -> Overview of climate control systems Guide for Mercedes CLA 4 Door First Generation (2013-2018)

Overview of climate control systems

General notes

Observe the settings recommended on the fol-

lowing pages. Otherwise, the windows could

mist up.

To prevent the windows from misting up:

switch off climate control only briefly

activate air-recirculation mode only briefly

switch on "Cooling with air dehumidification"

activate the "Windscreen demisting" function

briefly, if required

The air-conditioning system or THERMOTRONIC

automatic climate control regulates the temper-

ature and the humidity of the vehicle interior and

filters undesirable substances from the air.

The air-conditioning system or THERMOTRONIC

automatic climate control can only be operated

when the engine is running. Optimum operation

is only achieved with the side windows and pan-

orama sliding sunroof closed.

The residual heat function can only be activated

or deactivated with the ignition switched off

(Y page 126).

Always keep the ventilation flaps behind the

side panelling clear (Y page 113). Otherwise the

vehicle will not be ventilated correctly.

Ventilate the vehicle for a brief period during

warm weather, e.g. using the convenience

opening feature (Y page 90). This will speed

up the cooling process and the desired inte-

rior temperature will be reached more

quickly.

The integrated filter filters out most parti-

cles of dust and soot and completely filters

out pollen. With THERMOTRONIC automatic

climate control, gaseous pollutants and

odours will also be reduced. A clogged 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 Book-

let. As this depends on environmental condi-

tions, e.g. heavy air pollution, the interval may

be shorter than stated in the Service Booklet.

Vehicles with auxiliary heating: Under

certain environmental conditions, the resid-

ual heat function may be activated automati-

cally an hour after the ignition key has been

removed in order to dry the automatic climate

control. The blue LED on the rocker switch in

the centre console lights up when the active

function to dry the automatic climate control

is on. The vehicle is then ventilated for

30 minutes.

Vehicles without auxiliary heating: Under

certain environmental conditions, the resid-

ual heat function may be activated automati-

cally an hour after the ignition key has been

removed in order to dry the automatic climate

control. The vehicle is then ventilated for

30 minutes.

Overview of climate control systems

117

Climate control

Control panel for air-conditioning system

To set the temperature (Y page 122)

;

To demist the windscreen (Y page 123)

To set the air distribution (Y page 122)

To activate/deactivate air-recirculation mode (Y page 124)

To set the airflow (Y page 123)

To activate/deactivate cooling with air dehumidification (Y page 121)

To switch the rear window heating on/off (Y page 124)

Notes on using the air-conditioning

system

Air-conditioning system

Below, you can find a number of tips and rec-

ommendations for optimum use of the air-con-

ditioning system.

Switch on the air-conditioning system by turn-

ing control knob A clockwise to the desired

position (except position 0).

Set the temperature to 22 †.

Recommendation for avoiding misted

windows at low exterior temperatures or

in rain: switch on the ¿ cooling with dehu-

midification function (Y page 121).

Set air distribution to ¯ and if possible

switch off P and O (Y page 122).

Deactivate air-recirculation mode e

(Y page 124).

Set airflow control A to a setting between 3

and 6 (Y page 123).

Recommendation for rapid cooling or

heating of the vehicle interior: briefly set

airflow control A to a setting between 3 and

6 (Y page 123).

Recommendation for a constant vehicle

interior temperature: set airflow control A

to a setting between 1 and 3 (Y page 123).

Recommendation for air distribution in

winter: select the O and ¯ settings

(Y page 122).

Recommendation for air distribution in

summer: select the P or P and ¯

settings (Y page 122).

Use the "Windscreen demisting" function only

briefly until the windscreen is clear again.

Use air-recirculation mode only briefly, e.g. if

there are unpleasant outside odours or when

in a tunnel. The windows could otherwise mist

up as no fresh air is drawn into the vehicle in

air-recirculation mode.

If you change the settings of the climate con-

trol system, the climate status display

appears for approximately three seconds at

118

Overview of climate control systems

Climate control

the bottom of the screen in the multimedia

system display (see separate operating

instructions). You will see the current settings

of the various climate control functions.

DYNAMIC SELECT button (except

Mercedes-AMG vehicles)

You can choose between various drive programs

with the DYNAMIC SELECT button

(Y page 141).

If you have selected drive program E:

when heating, the electrical heater booster is

deactivated and in the warming-up phase

heat output is reduced

the rear window heating running time is

reduced

Depending on the configuration, the climate set-

tings can also be influenced in drive program I.

If you have selected drive program C or S, the

climate settings are not affected.

ECO start/stop function

During automatic engine switch-off, the climate

control operates only at a reduced capacity. If

you require the full climate control output, you

can switch off the ECO start/stop function by

pressing the ECO button (Y page 138).

Control panel for THERMOTRONIC automatic climate control (2-zone)

To set the temperature, left (Y page 122)

;

To set climate control to automatic mode (Y page 121)

To demist the windscreen (Y page 123)

To increase the airflow (Y page 123)

To set the air distribution (Y page 122)

Display

To activate/deactivate air-recirculation mode (Y page 124)

To switch the climate control on/off (Y page 120)

To set the temperature, right (Y page 122)

To switch the residual heat on/off (Y page 126)

To activate/deactivate cooling with air dehumidification (Y page 121)

To reduce the airflow (Y page 123)

Overview of climate control systems

119

Climate control

To switch the rear window heating on/off (Y page 124)

To switch the ZONE function on/off (Y page 123)

Information on using THERMOTRONIC

automatic climate control

Automatic climate control

The following contains instructions and recom-

mendations to enable you to get the most out of

your THERMOTRONIC automatic climate con-

trol.

Activate climate control using the Ã and

¿ buttons. The indicator lamps in the

Ã and ¿ buttons light up.

Set the temperature to 22 †.

Use the "Windscreen demisting" function only

briefly until the windscreen is clear again.

Use air-recirculation mode only briefly, e.g. if

there are unpleasant outside odours or when

in a tunnel. The windows could otherwise mist

up as no fresh air is drawn into the vehicle in

air-recirculation mode.

Use the ZONE function to adopt the temper-

ature settings on the driver's side for the

front-passenger side as well. The indicator

lamp in the á button goes out.

Use the residual heat function if you want to

heat or ventilate the vehicle interior when the

ignition is switched off. The residual heat

function can be activated or deactivated only

with the ignition switched off.

If you change the settings of the climate con-

trol system, the climate status display

appears for approximately three seconds at

the bottom of the screen in the multimedia

system display (see separate operating

instructions). You will see the current settings

of the various climate control functions.

DYNAMIC SELECT button (except

Mercedes-AMG vehicles)

You can choose between various drive programs

with the DYNAMIC SELECT button

(Y page 141).

If you have selected drive program E:

when heating, the electrical heater booster is

deactivated and in the warming-up phase

heat output is reduced

the rear window heating running time is

reduced

Depending on the configuration, the climate set-

tings can also be influenced in drive program I.

If you have selected drive program C or S, the

climate settings are not affected.

ECO start/stop function

During automatic engine switch-off, the climate

control operates only at a reduced capacity. If

you require the full climate control output, you

can switch off the ECO start/stop function by

pressing the ECO button (Y page 138).

Operating the climate control system

Switching the climate control on/off

General notes

When climate control is switched off, the air

supply and air circulation are also switched off.

The windows could mist up. Therefore, switch

off climate control only briefly.

Air-conditioning system

Turn the key to position 2 in the ignition lock

(Y page 133).

To switch on: turn control A clockwise to

the desired position (except position 0)

(Y page 118).

To switch off: turn control A anti-clockwise

to position 0 (Y page 118).

120

Operating the climate control system

Climate control

Climate control -> Overview of climate control systems for Your Mercedes CLA 4 Door First Generation (2013-2018)

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