Audi A5 Owner's Manual page 112

document_0900452a8179700c.book Seite 110 Donnerstag, 22. März 2007 10:19 10
110 Heating and cooling
– 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.