Get Heating and cooling -> Auxiliary heating and auxiliary ventilation Guide for Audi A5 4 Door First Generation (2007-2013)

Heating and cooling 109

Controls Safety Driving tips General maintenance Self-help Technical data

Applies to vehicles: with deluxe automatic air conditioner plus

Economical operation of the air conditioner

Economical operation of the air conditioner will help to

save fuel.

When the air conditioner is operating in the cooling mode it

reduces engine power and increases fuel consumption. To

ensure that the cooling mode is activated only when really

necessary, please note the following points:

– Switch off the cooling mode by pressing the AC button

(LED off) if you wish to save fuel.

– You should also switch off the cooling mode by pressing

the AC button (LED off) if you open the windows or the

tilting panorama roof* while driving.

– If the vehicle has heated up after standing in the sun,

open the windows and doors for a short time to cool the

vehicle.

For the sake of the environment

By saving fuel you also reduce the amount of pollutants emitted

from your vehicle.

Deluxe automatic air conditioner plus

- basic settings

Applies to vehicles: with deluxe automatic air conditioner plus

General notes

You can change the basic settings for the air conditioner

on the MMI* or on the sound system control console.

– Press the function selector button marked .

– Press the control button for AC ⇒ fig. 124

The display for the MMI basic differs slightly.

Fig. 124 MMI display:

AC menu option

Fig. 125 MMI display:

Setup AC

CAR

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Heating and cooling110

– Select the desired air conditioner settings using the

rotary pushbutton ⇒ page 109, fig. 125.

The following functions are available:

• Automatic air recirculation ⇒ page 110

• Synchronisation ⇒ page 110

• Auxiliary heating* ⇒ page 111

• Auxiliary ventilation* ⇒ page 111

• Running time* ⇒ page 113

• Timer status* ⇒ page 112

• Timer 1* ⇒ page 112

• Timer 2* ⇒ page 112

• Timer 3* ⇒ page 112

• Supplementary heater* ⇒ page 110

Applies to vehicles: with deluxe automatic air conditioner plus

Automatic recirculation

If the outside air is polluted, an air purity sensor in the

vehicle will automatically switch on the air recirculation.

To prevent fumes, etc. in the outside air from entering the interior,

we recommend that the automatic air recirculation should be

switched on at all times.

If the air purity sensor in the air conditioner system detects a certain

concentration of fumes in the outside air, the control unit will either

pass the incoming air through the pollution filter or automatically

switch on the air recirculation. If there is a high concentration of

pollution in the outside air, the air conditioner automatically

switches to air recirculation and cuts off the supply of air from the

outside. As soon as the level of pollution decreases, air is fed into

the vehicle from the outside again.

If the windows mist up when the automatic air recirculation is on,

press the  button immediately.

The automatic air recirculation can switch itself off in certain condi-

tions. If the outside temperature is less than about +10 °C, the auto-

matic air recirculation will only operate for 30 seconds. If the air

conditioner is switched to the ECON mode, or if the outside temper-

ature is less than about -1 °C, the automatic air recirculation will

only operate for 15 seconds.

Applies to vehicles: with deluxe automatic air conditioner plus

Synchronisation

The air conditioner settings can be synchronised for all

passengers.

When the synchronisation function is on, the driver's settings are

also applied to the front passenger or vice versa. Any subsequent

changes to the air conditioner settings (except for the seat heating*)

are also applied to the other occupant.

You can still change the setting on the “synchronised” side (this will

deactivate the synchronisation function).

Applies to vehicles: with diesel engine

Supplementary heater

– Set the Supplementary heater to auto or off.

Models with a diesel engine are equipped with a supplementary

heater to help warm up the interior more quickly. At outside temper-

atures below about +5 °C the supplementary heater is switched on

(and off) automatically when the engine is running, depending on

the coolant temperature, the temperature in the vehicle interior and

the temperature the heater is set to.

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Heating and cooling 111

Controls Safety Driving tips General maintenance Self-help Technical data

Auxiliary heating and auxiliary

ventilation

Applies to vehicles: with auxiliary heating - under development at the time of printing

Description

The auxiliary heating and ventilation systems heat and

cool the interior independently of the engine.

The auxiliary heating  works in conjunction with the air condi-

tioner system, but does not rely on heat from the engine. Instead of

this, the system burns fuel. The system's main function is to warm

up the interior of the vehicle and to defrost the windows in cold

weather.

The auxiliary heating system can be used both when the vehicle is

stationary and when driving (to provide extra heat while the engine

is warming up).

The auxiliary ventilation  also operates independently of the

engine. This feature can be used to cool the interior with the blower

when the vehicle is left parked in the sun.

The system will automatically activate either the auxiliary heating or

the auxiliary ventilation mode, depending on the actual tempera-

ture measured inside the car and the temperature you have set with

the air conditioner controls. It is possible to alter the temperature

setting while the auxiliary heating/ventilation is running.

Switching on and off

There are two different ways of switching on the auxiliary

heating/ventilation system.

• Immediate start: You can switch the auxiliary heating/ventilation

on and off at any time in the MMI Car menu ⇒ page 112. You can

also switch the system on and off using the remote control

⇒ page 114.

• Switching on via timer: You can programme various start times

using the timers ⇒ page 112. However you must first activate the

timer before the auxiliary heating/ventilation system will switch on

automatically.

The auxiliary heating/ventilation will switch itself off at the end of

the programmed running time. The running time can be set to 15,

30, 45 or 60 minutes ⇒ page 113.

WARNING

• The auxiliary heating must not be allowed to run when the

vehicle is in a confined space because it can give off toxic fumes.

• To avoid any possible fire risk, never have the auxiliary heating

switched on when refuelling the vehicle.

• Because of the high temperatures which occur when the auxil-

iary heating is running, make sure when parking the car that the

exhaust outlet under the car is not obstructed in any way and that

the exhaust gases do not come into contact with flammable mate-

rials (fire risk).

Note

• It is advisable to open the air outlets when using the auxiliary

heating/ventilation.

• The auxiliary heating/ventilation will not switch on if the fuel in

the tank has reached the reserve zone.

• The auxiliary heating/ventilation will not switch on if the battery

charge level is low.

• The symbols  (auxiliary ventilation) or  (auxiliary heating)

flash in the instrument cluster next to the clock display when the

auxiliary heating/ventilation is switched on. Both symbols light

continuously when the timer is activated.

• At low outside temperatures some visible water vapour may

form in the engine compartment. This is a normal phenomenon,

and no reason for concern.

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Heating and cooling112

Applies to vehicles: with auxiliary heating - under development at the time of printing

Switching on/off immediately

Switching on immediately

– Press the button.

– Press the control button for AC.

–Set Aux. heating or Aux. ventilation to on.

Switching off immediately

– Press the button.

– Press the control button for AC.

–Set Aux. heating or Aux. ventilation to off.

When the auxiliary heating/ventilation is running, you can press the

button on the air conditioner console to switch off the blower

only. Pressing the button a second time will switch on the

blower again.

Note

The symbols  (auxiliary ventilation) or  (auxiliary heating) flash in

the instrument cluster next to the clock display when the auxiliary

heating/ventilation is switched on.

Applies to vehicles: with auxiliary heating - under development at the time of printing

Setting the timers

The timers need to be activated before they will switch on

the auxiliary heating/ventilation.

Setting the timers

– Press the button.

– Press the control button for AC.

– Select the timer you wish to set, and enter the required

time and date ⇒ fig. 127.

– Then press the rotary control to confirm the time and

date settings.

Fig. 126 MMI display:

Setup AC

CAR

OFF

Fig. 127 MMI display:

Timer

Fig. 128 MMI display:

Timer status

CAR

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Heating and cooling -> Auxiliary heating and auxiliary ventilation for Your Audi A5 4 Door First Generation (2007-2013)

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