2008 AUDI S4 air condition

Heating and cooling
106Applies to vehicles: with deluxe automatic air conditioner plusAir distribution

The automatically programmed air distribution can be
altered manually if required.– Press the button for Distribution

.
– Turn the rotary control to the desired setting.
You can use the air distribution setting to select the air outlets you
wish to activate. In setting
 all the air is directed to the windows,
in setting
 the air is directed to the driver (or passenger), and in
setting
 to the footwells. In addition to this there are several other
possible combinations, allowing you to adjust the air distribution to
suit individual requirements. Switch to for automatic control of the air distribution.
The air distribution setting will be shown on the MMI display
⇒
fig. 118 for a few seconds if the MMI is switched on.
Applies to vehicles: with deluxe automatic air conditioner plusDefrosting
The windscreen and side windows are defrosted or
demisted as quickly as possible.– To switch on, press the button.
– To switch off, press the button again, or press the
button.The temperature is regulated automatically. The air output is
increased to maximum and most of the air comes out of the outlets
below the windscreen.
The air recirculation mode is switched off when the button is
pressed.Applies to vehicles: with deluxe automatic air conditioner plusHeated rear window
The rear window heating helps to demist the rear window.– Press the

b u t t o n t o s w i t c h t h e r e a r w i n d o w h e a t i n g o n
and off.
The rear window heating only works when the engine is running. An
indicator lamp in the button lights up when the rear window heater
is switched on.
Depending on the outside temperat ure, the rear window heating
switches off automatically after about 10 to 20 minutes.
The rear window heating can be switched on permanently by
pressing the
 button for longer than two seconds. It will then
Fig. 117 Air distribu-
tion button and rotary
controlFig. 118 Display: Air
distribution
AUTO


AUTO


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Heating and cooling107
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
remain on until the ignition is switched off. When the rear window
heating is switched on, this setting will remain activated for 15
minutes after switching off the ignition.
If the engine is started again during this period of 15 minutes, the
rear window heating will be switched on for about 10 to 20 minutes,
depending on the exterior temperature. This means you do not have
to manually switch on the rear window heating again if the vehicle
has only been parked for a short time.
For the sake of the environment
Switch off the heated rear window manually as soon as the rear
window is clear. By saving electrical power you can also save fuel.Applies to vehicles: with deluxe automatic air conditioner plusAC mode Deactivating the AC mode
– Press the button.
Activating the AC mode
– Press the button again.In the AC mode, the air cooling system is switched on and the
heating and ventilation are regulated automatically.
Note
If the LED in the AC button should continue to light up when the AC
mode has been switched off (i.e. the air conditioner has been
switched off) this is due to a defect in one of the air conditioner
components. If a malfunction should occur, please contact a quali-
fied workshop.
Applies to vehicles: with deluxe automatic air conditioner plusAir outlets
The air distribution setting directs the air to the outlets
you select.Fig. 119 Dashboard: Location of air outletsAir outlets and
– The outlets can be opened and closed by turning the
thumbwheels next to them.
– The direction of air delivery from these outlets can be adjusted horizontally and vert ically using the adjuster in
the centre of each outlet grille.The flow of air from the outlets is controlled either automatically or
manually, depending on the operating mode selected. Outlets to
can provide air which is either heated, unheated, or cooled.
ACACAC
A2
A3
A1
A4
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Heating and cooling
108
NoteWhen the air conditioner is operating in the cooling mode, the air is
directed mainly to outlets and . To ensure an adequate cooling
effect, you should not close these outlets completely.Applies to vehicles: with deluxe automatic air conditioner plusAir outlets for rear passengers
The air outlets for the rear cabin are located in the centre
console.– The outlets can be opened and closed by turning the thumbwheels.
– The direction of air delivery from these outlets can be adjusted horizontally and vertically using the adjuster in
the centre of each outlet grille.The flow of air from the outlets is controlled either automatically or
manually, depending on the operating mode selected. All the
outlets can provide air which is either heated, unheated, or cooled.
The heater outlets for the rear footwells are located under the front
seats.
Note
When the air conditioner is operating in the cooling mode the air is
directed mainly to the outlets in the centre console. To ensure an
adequate cooling effect, you sh ould not close these outlets
completely.
Applies to vehicles: with deluxe automatic air conditioner plusEconomical 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 incr eases 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 environmentBy saving fuel you also reduce the amount of pollutants emitted
from your vehicle.
A2
A3
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Heating and cooling109
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Deluxe automatic air conditioner plus
- basic settingsApplies to vehicles: with deluxe automatic air conditioner plusGeneral notes
The basic settings for the air conditioner can be adjusted
via the sound system or MMI*.– Select: Function selector button > control button
AC.The following functions are available:•
Automatic air recirculation ⇒page 109
•
Synchronisation ⇒page 109
•
Auxiliary heating* ⇒page 110
•
Auxiliary ventilation* ⇒page 110
•
Running time* ⇒page 112
•
Timer status* ⇒page 111
•
Timer 1* ⇒page 111
•
Timer 2* ⇒page 111
•
Timer 3* ⇒page 111
•
Supplementary heater* ⇒page 110
Applies to vehicles: with deluxe automatic air conditioner plusAutomatic 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 automati c 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, th e automatic air recirculation will
only operate for 15 seconds.
Applies to vehicles: with deluxe automatic air conditioner plusSynchronisation
The air conditioner settings can be synchronised for all
passengers.When the synchronisation function is switched on, all subsequent
air conditioner settings made on the driver's side (except for the
seat heating*) are also applied to the front passenger's side.
Fig. 120 Display:
Setup AC
CAR
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Heating and cooling
110The synchronisation is cancelled as soon as any adjustments are
made on the front passenger's side.Applies to vehicles: with diesel engineSupplementary 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 sup plementary 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.Auxiliary heating and auxiliary
ventilationApplies to vehicles: with auxiliary heating - under development at the time of printingDescription
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 pr ovide 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 activa te 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 he ating/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 auxi liary heating/ventilation
on and off at any time vi a the sound system or MMI ⇒page 111 . You
can also switch the system on and off using the remote control
⇒ page 113 .
•
Switching on via timer: You can programme various start times
using the timers ⇒page 111 . 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 112 .
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 temperatur es which occur when the auxil-
iary heating is running, make su re 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).
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Heating and cooling111
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
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 wi ll 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.
Applies to vehicles: with auxiliary heating - under development at the time of printingSwitching on/off immediately
You can switch the auxiliary heating/ventilation on and
off immediately via the sound system or MMI*.– Select: Function selector button > control button AC > Aux. heating or Aux. ventilation .
When the auxiliary heating/ventilat ion is running, you can press the
button on the air conditioner co nsole 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 printingSetting and activating the timers
You can make the desired settings for the auxiliary
heating/ventilation on the sound system or MMI*.
Fig. 121 Display:
Setup AC
CAR
OFF
OFF
Fig. 122 Display: Timer
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Audi side assist157
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Audi side assist: system fault
The system should be checked by an
Audi dealership or other qual-
ified workshop.
Audi side assist not available when towing
On vehicles with a factory-fitted towing bracket the side assist func-
tion will be switched off automatically when the electrical connector
for the trailer is plugged in, and this message will appear in the
instrument cluster display. The side assist function may not be
switched off automatically if the towing bracket is not of the factory-
fitted type.
Applies to vehicles: with side assistSafety notesThe function of the side assist can be restricted when driving in
tight bends or over crests and in bad weather conditions.
It is possible that the radar sensors may register objects such as
high or offset roadside barrie rs as well as other vehicles.
The side assist system is programmed for lanes of a fixed width, and
is not able to measure differing lane widths. It monitors a zone
equivalent to one normal lane width on either side. If the lanes are
narrower than this, or if vehicles are not travelling in the centre of
the lanes, the system may give a warning for vehicles which it
judges to be critical, even though they are not in fact travelling in an
adjacent lane.
WARNING
•
Please note that the sensors are not always able to detect all
vehicles which may represent a potential hazard (accident risk).
•
Please note that the side assist is not able to give adequate
warning of vehicles approaching very fast from behind, or vehicles
that you are overtaking rapidly.
•
The radar sensor's "field of vision" can be impaired by rain,
snow or a lot of water on the road. This results in vehicles not
being reliably recognised or, in some circumstances, not being
detected at all by the side assist. Al ways give your full attention to
the position of your vehicle on the road and other nearby traffic.
•
The side assist only gives a warning of approaching vehicles
and vehicles in the blind spots when road speed is above 60 km/h.
•
Please note that the side assist does not operate in tight bends
(with a radius of less than 200 metres).
•
The side assist feature is not a substitute for the full concentra-
tion of the driver. The driver is always responsible for the safety of
lane changes and other manoeuvres. Always give your full atten-
tion to the position of your vehicle on the road and other nearby
traffic.Caution
To avoid impairing the function of the side assist, do not attach any
objects (e.g. stickers or bicycle ca rriers) in such a way that they
might interfere with the radar sensors in the rear bumper.
Note
For reasons of safety, the side assist system must be checked by a
qualified workshop if the positions of the radar sensors have been
affected by a rear-end collision, etc.Applies to vehicles: with side assistConformity certificationThe side assist employs radar sensors operating in one of two
frequency bands at 24 GHz. Please note that in some countries only
one of these two frequency bands is permitted. Accordingly, the
frequency band permitted in the country where the vehicle is being
WARNING (continued)
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Safe driving187
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Before every trip
The driver is responsible for the safety of the passengers
and the safe operation of the vehicle at all times.For your own safety and the safety of your passengers,
always note the following points before every trip:
– Make sure that all lights and turn signals are working
properly.
– Check the tyre pressures.
– Make sure that all windows are clean and give good visi- bility to the outside.
– Secure all luggage and other items carefully ⇒page 79 .
– Make sure that no objects can interfere with the pedals.
– Adjust the front seat, head restraint and mirrors correctly.
– Make sure that the head restraints for all passengers are adjusted to the correct position.
– Make sure that children are protected with suitable safety seats and properly worn seat belts ⇒ page 210.
– Sit in the correct position in your seat and make sure that
your passengers do the same. ⇒page 73 .
– Fasten your seat belt correctly. Make sure that your passengers do the same ⇒page 194.
What affects driving safety?
Safety on the road is directly related to how you drive, and
can also be affected by the passengers in the vehicle.The driver is responsible for the safety of the vehicle and all
its occupants. If your ability to drive is impaired in any way,
you endanger yourself and other road users ⇒. There-
fore:
– Do not let yourself be distracted by passengers or by using a mobile phone, etc.
– Never drive when your driving ability is impaired (by medication, alcohol, drugs, etc.).
– Obey all traffic regulations and speed limits and always maintain a safe distance to the vehicle in front.
– Always adjust your speed to suit the road, traffic and weather conditions.
– Take frequent breaks on long trips. Do not drive for more than two hours without a stop.
– If possible, avoid driving when you are tired or stressed.
WARNING
•
Distractions while driving or any kind of impairment to your
driving ability increase the risk of accident and injury.
•
Do not store loose objects on the dashboard. These objects
could fly around the interior when the vehicle is moving (under
acceleration or whilst cornering) and distract the driver – this
could lead to an accident.
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