Get Warm and cold Guide for Audi A5 4 Door Third Generation (2025-2026)

Warm and cold

Active combination filter

Warm and cold

Climate control system

Description

When the fan is running, the filter will reduce

particulate matter and the concentration of pol-

len, as well as odors in the interior.

Your vehicle has a deluxe automatic climate con-

trol system with three zones in which the tem-

perature, air distribution, and air supply can be

adjusted separately for the front left and right

sides, as well as the temperature in the rear.

Tips

– To prevent interference with the heating or

cooling output and to prevent the windows

from fogging over, the air intake in front of

the windshield must be free of ice, snow,

and leaves.

The climate control system warms, cools, dehu-

midifies, and filters the air in the vehicle interior.

It is the most effective when the windows and,

depending on vehicle equipment, the roof are

closed. If there is a build-up of heat inside the ve-

hicle, ventilation can help to speed up the cooling

process.

– Condensation from the cooling system can

drip and form a puddle of water under the

vehicle. This is normal and does not mean

there is a leak.

– The energy management system may tem-

porarily turn off certain functions, such as

the seat heating or rear window defogger.

These systems will be available again once

the energy supply has been restored.

The automatic climate control system automati-

cally maintains a temperature once it has been

set. In all heating mode functions except defrost,

the blower only switches to a higher speed once

the coolant has reached a certain temperature.

Operating in the cockpit

Fig. 86 3-zone deluxe automatic climate control system: controls

Observe the safety precautions ð

multiple times. Depending on the vehicle equip-

ment, the functions of the rocker switches 3 and

5 may be reversed on right-hand drive vehicles.

The driver and front passenger settings can be

adjusted separately.

Press the knobs, buttons, or rocker switches to

turn the functions on or off. When the function is

turned on, the LED in the respective button or

knob turns on. Some rocker switches can be as-

signed with multiple functions. The various func-

tions can be activated by pressing the switch



Warm and cold

OFF

Turning the climate control system on

senger's side and the rear (except for seat heat-

ing/ventilation, depending on vehicle equip-

ment). If the settings on the front passenger's

side or in the rear are changed, the synchroniza-

tion will automatically turn off and 3-ZONE will

appear in the display.

or off

OFF

The

button turns the climate control sys-

tem on or off. It also turns on when you press an-

other button or a knob. Airflow from outside is

blocked when the climate control system is

turned off.

SET REAR Function

A/C Cooling mode

Use the rocker switch 5 to select the function.

When the function is turned on, you can adjust

all settings for the rear using the climate control

system controls in the cockpit. The rear climate

control system controls cannot be operated at

the same time. This function turns off automati-

cally after a certain period of time or after leaving

the menu.

The cooling mode only functions with the blower

turned on. The air is not cooled and humidity is

not reduced when cooling mode is turned off.

This can cause fog on the windows. The cooling

mode turns off automatically at low outside tem-

peratures.

Depending on the vehicle equipment, you can se-

lect from the following settings for cooling mode

by pressing the rocker switch 3 :

 Blower

The blower setting should not be set too low in

order to prevent the windows from fogging and

to ensure a continuous exchange of air inside the

vehicle.

– A/C MAX: activates the maximum cooling

mode of the climate control system. To reduce

unnecessary energy usage, only use this func-

tion briefly. In unfavorable weather conditions,

this function may increase the fogging on the

windows.

You can adjust the volume of air generated by the

blower to your preference using the rocker switch

4 . To have the blower regulated automatically,

press one of the knobs 1 .

– A/C ON: turns on the cooling mode and con-

trols it automatically.

Air distribution

– A/C OFF: turns off the cooling mode.

To help prevent the front side windows from fog-

ging over, open the side air vents and angle them

toward the side windows.

AUTO Automatic mode

Automatic mode maintains a constant tempera-

ture inside the vehicle. Air temperature, airflow

and air distribution are controlled automatically.

You can turn automatic mode on or off by press-

ing the knob 1 .

You can use the rocker switches 2 to adjust the

vents where the air will flow out of. Press the

rocker switches 2 repeatedly until the desired

air distribution setting is displayed in the climate

control system controls. To have the air distribu-

tion regulated automatically, press one of the

knobs 1 .

 /  Temperature

You can adjust the temperature between 60°F

(+16°C) and 84°F (+28°C) by turning the knob

1 . If outside of this range, LO or HI will appear

in the climate control system display. In both set-

tings, the climate control runs constantly at the

maximum cooling or heating level.

 Defrosting

The windshield and side windows are defrosted

or cleared of condensation as quickly as possible.

Open the side air vents and angle them toward

the side windows. The maximum amount of air

flows mainly from the vents below the wind-

shield.

SYNC Synchronization

Use the rocker switch 5 to select the function.

When synchronization is turned on, the settings

for the driver's side are applied to the front pas-



Warm and cold

Residual heat

Defrost is turned on and off using the  button.

Recirculation mode turns off. The temperature is

controlled automatically. Defrost is turned off by

pressing the  button again. You can also turn

off the function by pressing the knob 1 .

The residual heat from the coolant is used to

heat the vehicle interior. The residual heat func-

tion will turn off automatically after approxi-

mately 15 minutes.

 Recirculation mode

You can activate the residual heat function when

the ignition is turned off by pressing the knob

(left side).

In recirculation mode, the air inside the vehicle is

circulated and filtered. This prevents the unfil-

tered air outside the vehicle from entering the

WARNING

vehicle interior ð

– You should not leave the recirculation mode

on for an extended period of time. This can

cause the windows to fog, which increases

the risk of an accident.

Pressing the  button turns recirculation mode

on or off manually. You can also turn off recircu-

lation mode by pressing the knob 1 or the 

button.

– Using recirculation mode or, depending on

the vehicle equipment, automatic recircula-

tion for an extended period of time can

 Rear window defogger

The rear window defogger only operates when

the engine is running. It turns off automatically

after 10 to 20 minutes, depending on the outside

temperature.

cause the CO concentration inside the vehi-

cle to increase. This can have a negative ef-

fect on the well-being of vehicle occupants,

which can increase the risk of an accident.

Turn off recirculation mode or automatic re-

circulation and ventilate the vehicle at the

first sign of unwellness.

Pressing the  button turns the rear window de-

fogger on or off. To prevent the rear window de-

fogger from turning off automatically, press and

hold the  button for more than three seconds.

It will remain on until the ignition is turned off.

– The vehicle is equipped with functions to au-

tomatically activate the seat heating. To re-

duce the risk of burns, individuals with re-

duced sensitivity to pain or temperature

must make sure that the seat heating is off

when starting the drive.

Vents

You can open and close the center and rear air

vents using the thumbwheels. The levers adjust

the direction of the airflow from the vents.

– When the seat heating is on, an alternating

magnetic field is created. Interactions such

as irritation of sensory organs or malfunc-

tions of active medical implants (such as

pacemakers, infusion pumps, or neurosti-

mulators) are very unlikely. If you have a

medical implant, seek medical advice from a

specialist if you have any questions.

 Seat heating

The seat heating temperature can be set at vari-

ous levels. Press the  button once to turn on the

highest level ð . Press the  button again to

decrease the temperature one level at a time.

The seat heating is off when all of the LEDs are

off.

– Make sure others in the vehicle know how to

use the seat heating safely.

 Seat ventilation

Applies to: vehicles with seat ventilation

Note

The seat ventilation intensity can be set to multi-

ple levels. Press the  button once to turn on

the highest level. Press the  button again to

decrease the intensity one level at a time. The

seat ventilation is off when all of the LEDs are off.

– To reduce the risk of damage to the seat

heating elements, do not kneel on the seats

or place heavy pressure on one area of the

seat.



Warm and cold

– Only use the seat heating when the seat sur-

face is dry.

For the sake of the environment

Energy can be saved by turning off the A/C

mode.

– Only put dry items on the seat surfaces.

– Do not spill liquids on the seat surfaces.

– Covering the seat surfaces can impair the

function of the seat heating. Do not use pro-

tective seat covers and do not put items

(such as jackets, blankets, or bags) on the

seat surfaces when the seat heating is on.

– Make sure others in the vehicle know how to

use the seat heating safely.

Tips

If the front passenger's seat heating is turned

on, it will not turn on again automatically if

more than 10 minutes have passed between

turning off the ignition and turning it on

again.

Operating in the rear

Fig. 87 3-zone deluxe automatic climate control system: controls

Auto recirculation

The vent in the center console can be opened and

closed with the thumbwheel. The levers adjust

the direction of the airflow from the vents.

This function will automatically operate the recir-

culation mode if air pollution is detected ð in

Operating in the cockpit on page 94.

The temperature can be selected using the and

buttons 1 . Depending on the vehicle equip-

ment, the temperature of the seat heating can be

set at various levels. Press the  button once to

turn on the highest level ð in Operating in the

cockpit on page 94. Press the  button again to

decrease the temperature one level at a time.

The seat heating is off when all of the LEDs are

off.

Steering wheel heating

Turning on or off

Applies to: vehicles with steering wheel heating

►

Press the  button on the multifunction steer-

ing wheel to turn the steering wheel heating on

or off.

Additional settings

Fluids in the A/C system

You can adjust additional settings.

Refrigerant in the A/C system

►

Applies to MMI: Select on the home screen: VE-

HICLE > Air conditioning.

The sticker in the engine compartment provides

information about the type and amount of



Warm and cold

refrigerant used in the vehicle’s A/C system. The

sticker is located in the front section of the en-

gine compartment or at the front or back of the

hood.

– The refrigerant can create toxic vapors when

it comes in contact with hot surfaces. To re-

duce the risk of serious injuries or death, do

not inhale these vapors.

Symbol Meaning

Tips

Warning: the A/C system must only

– Never repair the A/C system evaporator with

components from old vehicles or from recy-

cling.



be serviced by qualified technicians.

Refrigerant type



– New replacement evaporators for portable

A/C systems must be certified and labeled

as such, so that they comply with the SAE

standard J2842 HFO-1234yf and R744.

Refrigerant oil type

Refer to the service information

(only available to authorized Audi



dealers or authorized Audi Service

Facilities)

The A/C system must only be serv-



iced by qualified technicians.

Flammable refrigerant



Make sure all components are dis-

posed of correctly and never install

components in the vehicle that have

been removed from old vehicles or



taken from recycling.

Refrigerant oil in the A/C system

The sticker in the engine compartment provides

information about the type and amount of refrig-

erant oil used in the vehicle’s A/C system. For in-

formation about the amount of refrigerant oil

used, contact an authorized Audi dealer or au-

thorized Audi Service Facility.

WARNING

The climate control system may only be serv-

iced by qualified and certified technicians who

have been trained according to the country-

specific standards, for example SAE standards

J2845 and J2911.

– Refrigerant is flammable. Keep the vehicle

away from open flames, sparks, and other

ignition sources to reduce the risk of serious

injuries or death.

– The refrigerant is under pressure and can ex-

plode if heated, which increases the risk of

serious injuries or death.

Warm and cold for Your Audi A5 4 Door Third Generation (2025-2026)

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