2008 AUDI S6 heating

Opening and closing
Sliding/tilting power sunroof
App lies to vehicles: w ith s liding/ tilt ing power sun roof
How the power sunroof works
0
0
Fi g. 49 Sec tion of th e
h ea dlin er: s unr oof
s wit ch po siti ons
The roof wil l slide open or tilt up at the rear as required. When the
ign ition is on, you can slide the roof open or close it to the desired
position by turning the rotary control switch located overhead next
to the interior light. The roof is ti lted open or closed by pressing or
pul ling the control switch at position@=> fig. 49.
You can sti ll close or open the sunroof for up to ten minutes after
you have switched off the ignition with the key remaining in the igni­
tion lock. If e ither door is opened, powered operation of the sun roof
wi ll be deactivated.
Solar roof*
The solar cel ls in the roof provide energy to operate the ventilation
system for the climate control. It is ac tivated automatically after the
vehic le is parked. Depending on solar irradiation, the interior
t empe ratu re of the veh ic le is lowered in the summer, i n the winte r
the interior is dehumid ified .
The interior trim is permanently attached to the solar roof and cannot be s lid separate ly .
S olar prote ction w ith sliding gla ss sun roof*
The s liding glass sun ro of is equipped with an adjustable sunshade
to reduce the effects of strong sun light. The solar protection can be
moved at the recessed ha ndle to o pen and close it. To p revent the
vehic le interior from heating up, you shou ld c lose the solar protec ­
tion when you park your vehicle in the sun.
When the roof is
slid open , the sunshad e is opened aut omat ically.
When the roof is c losed, the sunshade can be closed manual ly.
When the roof is
tilt ed open, the closed sunshade is also raised at
the rear edge . But it can still be sl id open or closed.
0 Note
You shou ld always closed the sliding/ti lting sun roof when you leave
your vehic le. Sudden rain can drench the interior equipment and
damage the electro nic convenience features in your vehicle.
[ i ] Tips
If you park your v ehicle in the sun, we recom mend that you close
the sunshade* .•
Ap plies to vehicles: with sl iding/tilting power sunroof
Sliding /tilting the power sunroof open
Sliding the power s unroof open to the comfort position
keeps wind n oise t o a minimum.
Sliding the roof open to the comfort position
Tur n the ro ta ry sw itch to posit io n G) ~ fig. 49 (detent
can be felt) . The roof is s lid ope n only to a co mfort posi-
tio n with l ow wind noise. .,.

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Warm and cold
Climate control
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the follow ing settings:
- Set the temperature to 75 °F (+23 °C).
- Press the !AUTO
I button.
With this setting, you attain maximum comfort in the least amount
of time. Change this setting, as desired, to meet your personal needs.
The climate controls are a combination of heating, ventilation and cooling systems, which automatically reduce humidity and cool the
air inside your vehicle.
The air temperature, air flow and air distribution are automatically
regulated to achieve and maintain the desired passenger compart­
ment temperature as quickly as possible.
The system automatically compensates for changes in outside
temperature and for the intensity of the sunlight entering the
vehicle. We recommend you use the
Automatic mode=> page 113
for year-round comfort.
Please note the following:
Turn on the air conditioner to reduce humidity in the vehicle. This also prevents the windows from fogging up.
When the outside temperature is high and the air is very humid,
condensation from the evaporator may drip under the vehicle. This
is normal and does not indicate a leak. If the outside temperature is low,
the fan normally only switches to
a higher speed once the engine coolant has warmed up sufficiently.
The air conditioner temporarily switches off when you drive off from
a standstill using full throttle to save engine power.
The compressor also switches off if the coolant temperature is too
high, so that the engine can be adequately cooled under extreme
loads.
Air pollutants filter
The air pollutants filter (a combined particle filter and activated
charcoal filter) reduces or prevents outside air pollution (dust, or
pollen) from entering the vehicle.
The air pollutants filter must be changed at the intervals specified
in your Maintenance
& Warranty booklet, so that the air conditioner
can properly work.
If you drive your vehicle in an area with high air pollution, the filter
may need to be changed more frequently than specified in your
Audi Maintenance
& Warranty booklet. If in doubt, ask your autho­
rized Audi Service Advisor for advice.
Key coded settings
The air conditioner settings selected are automatically stored and
assigned to the key being used. When the vehicle is started, the air
conditioner automatically selects the settings assigned to that key.
This way every driver will maintain his/her own personal settings
and does not have to reset them manually.
If a different driver uses your key and changes the air conditioner
settings, the latest adjustments will erase and replace the settings
you have stored.
Energy management
To prevent the battery from being discharged and to restore the
balance of energy, components which require large amounts of

Warm and cold -
----------------
energy are temporarily cut bac k or switched off~ page 265 .
Hea tin g sys tems in particu lar requi re a g rea t dea l of energy. If yo u
not ice, for example, that the seat * or rear w indow heating is not
heati ng, they have bee n tempora rily cu t bac k or switche d off by
energy management . These systems are avai lable a gain as soon as
the energy balance has been resto re d.
& WARNING
Reduced visibility is dangerous and can cause accidents .
• For safe driving it is very important that all windows be free of
ice , snow and condensation.
• Completely familiarize yourself with the proper use and func­
tion of the heating and ventilation system and especially how to defog and defrost the windows .
• Never use the windshield wiper /washer system in freezing
weather until you have warmed the windshield first , using the
heating and ventilation system. The washer solution may freeze
on the windshield and reduce visibility.
0 Note
• I f you suspect that the air conditioner has been damaged, turn
on ECO N and con tac t an authori ze d Aud i deale r to hav e the system
inspected .
• R epairs to the A udi air co nd it io ner requ ir e sp ecia l te chni cal
know ledge and special tools . Contact an authorized Audi dealer for
assista nce .
[ i J Tips
• Kee p th e air in ta ke s lots (in fron t of the w inds hield) free from i ce,
snow and debris in order to maintain the proper function of the
cl im ate c ontro l sy ste m.
Controls and equip ­
ment
• Air escapes through vents under the rear window . When p lacing
i te ms of c lothing on the luggage c ompartme nt c over, e nsu re th at
the openings are not covered .
• Climate c ontro l wor ks mo st e ffec tively if th e windo ws and the
power roof are c losed . However, if the interior of a parked vehicle is
e xt re me ly hot fro m the sun's rays , briefly open ing the windows can
speed up the cooling process .•
I • •

Warm and cold -
----------------
Turning on and off [ECON ON /OFF]
Turning th e air conditioning on
- Press [ECON ON/OF F] briefly, or
- Press [AUTO].
Turning the air conditioning off
-Press the !ECON ON/OFF] button for at least 2 seconds to
switch the a ir cond itioning off and to block the air supply
f rom the outs ide .
"O FF" appears in the display.
Sw itchin g air c ondit ioning on /off
- Switching the air conditioning system on/off is done with
climate contro l switched on.
- Press the !ECON ON/OFF] button just
briefly.
The air conditioner turns back on if you press one of the control
buttons or the contro l knob.
ECON operation is indicated by the glowing LED on the right next to
the word ECON.
The air conditioning (compressor) is turned off in ECON mode .
"ECON" means "Economy" . You save fuel by switching off the air
conditioning=>
page 119.
Please note that vehicle interior temperature cannot be lower than
the outside temperature in the ECON mode. The air is no t cooled or
dehumidified. This can cause the windows to fog up.
[ i ) Tip s
Residu al he at: With the ignition turned off, you can activate the
residual heat function by pressing the !ECON ON/OFF] button. The
residual heat from the coo lant can be used to heat the vehic le inte-
Controls and equip ­
ment
rior. The residual heat function is turned off automatical ly after 30
minutes .•
Aut omati c mod e [AUTO ]
The automatic mode is the standard setting for all
seasons.
Turning on AUTO
- Selec t temperature be tween 60 °F (+ 1 6 °C) and 84 °F
(+28 °C) .
-Press [AUTO]~ page 112, fig. 109.
Automatic operation ensures constant temperatures in the interior and dehumidifies the air inside the vehicle . Air temperature, volume
and distribution are controlled automatically to reach or maintain
the desired interior temperature as quickly as possib le. Fluctuations
in exter ior temperature and the effects of temperature from the
position of the sun are compensated for automatica lly.
This operating mode works only in the adjustable temperature range, from 60 °F ( + 16 °C) to 84 °F ( +28 °C). If a temperature below
60 °F (+16 °C) is se lected,
LO appears in the display. At temperatures
above 84 °F (+28 °Cl,
HI is displayed. At both extreme settings,
climate control runs continuously at maximum cooling or heating
power. There is no temperature regulation. •
I • •

• ..__w_ a_ r_m _ a_ n_d_ c_ o_ ld __________________________________________________ _
Setting the temperature
Separate temperatures can be selected for the driver's and front passenger's side.
F ig . 110 MMI display:
Se tting the tem per a­
tu re
- Rotate the contro l knob to the left to reduce the temper-
ature, or to t he r ight to increase the temperature .
[ i ] Tip s
• When you press the control knob for choosing the temperature,
the temperature you choose w ill also appear in the MMI disp lay
~fig .110 .
• Synchr oni zing cl imate control: By pressing and ho lding the
control knob on the driver's side, the temperature setting on the
driver's side can be switched to the passenger 's side, and vice versa .
The new temperature is shown in the disp lay .•
Ap plies to vehicles : wi th electr ic a lly h eated seats
Heated seats G2)
The seat cushion and the seat back of the front seats can
b e heated electrically.
Fi g. 111 MMI di spl ay:
Hea te d sea ts
- Press the Heated seats Q) button.
- Adjust t he desi red temperat ure with t he climate con trol
knob=> fig. 111 .
In position O the heating for the seats is turned off . The range of
adjustment is between 1 and 6.
0 Note
T o avo id damage to the hea ting elements in the seats, do not kneel
on the seats or place heavy loads on a small area of the seat. •

Warm and cold 1111
-------------------'
Applies to vehicles: with heated rear se ats
Heated rear seats
The seat cushions and seat backs of the two outer rear
seats can be heated electrically.
Fig . 112 Center
console rear : Heated
seats
- Rotate the thumb wheel @ to turn on and adjust the
heating for the left rear seat.
- Rotate the thumb wheel
® to turn on and adjust the
heating for the right rear seat.
With the thumb wheel in the O position, heating for the seats is
turned off . The range of adjustment is from 1 to 6.
The rear seat heating operates only when the seats are occupied. If
the rear seat is not occupied, you should turn the heating for the
sea ts off to preven t unintended heating of the seating sur faces .
0 Note
To avoid damage to the heating elements in the seats , do not kneel
on the seats or place heavy loads on a small area of the seat. •
Contro ls and eq uip­
ment
Ap plies to vehi cle s: with ste erin g w heel heatin g
Steering wheel heating @
The steering wheel can be heated electrically.
Fig . 113 Multifunction
steering wheel: Button
for steering wheel
heating
Press the[@!] button to turn the steer ing wheel heating on
and off~ fig. 113. The message
Steering wheel heating on ! or
Steering wheel heating off! appears in the instrument
cluster display.
When the steering wheel heating is switched on , the steering wheel
is heated to about 82 °F (28 °Cl and held there.
The last setting selected for the steering wheel heating (on or off) is
automatically saved when the vehicle is shut off and is assigned to
the remote key. •
Vehicle care I I irechnical data

___ ln_ t _e_ ll-'"ig ...,_ e_ n_t _t_ e_ c_ h _ n_o _ l_o _,.g= y,_ __________________________________________ _
with less grip, gradually increase the pressure on the accelerator
pedal until the car starts to move.
Overheating of brakes
To prevent the disc brake of the braked wheel from overheating if
subjected to excessive loads on this wheel, the EDL cuts out tempo ­
rarily. The vehicle remains operational and behaves in the same way
as a vehicle without EDL.
As soon as the brake has cooled down, EDL switches on again auto ­
matically.
& WARNING
• When accelerating on slippery surfaces, such as on ice or snow,
always be careful when depressing the accelerator pedal. Even
with the EDL working, the drive wheels can spin and reduce your
ability to control your car. Risk of crash!
• The increased safety afforded by EDL does not mean that you
can take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i] Tips
If a fault occurs in the ABS, the EDL is also not functioning. This is
indicated by the ABS warning light=>
page 22. •
Ant"-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the driven
wheels from spinning when the car is accelerating.
General notes
The Anti-Slip Regulation System (ASR) is integrated in the electronic
stabilization program (ESP). When the vehicle starts up and acceler ­
ates, the wheels are prevented from spinning by adjusting the engine power to match the amount of grip available from the road
surface.
How the system works
ASR
performs automatically, i.e. without the driver's intervention.
With the aid of the ABS sensors=>
page 262, ASR monitors the
speed of the driven wheels. If the wheels start to spin, the engine
torque is reduced automatically until the tires find enough grip to
lock onto the road surface. The system is active across the entire
speed range.
Th e ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR will also be out of action.
Activating
The ESP is automatically activated when the engine is started and it
performs a self -test . You can activate a deactivated ASR if required
by pressing the =>
page 258, fig. 225 button . When it is activated,
the message
ESP/ASR on appears briefly in the display. Vehicles
with front-wheel drive a deactivated ASR automatically re-activates
itself at a speed of 40 mph (70 km/h) .
Deactivating
You can deactivate the ASR if required by pressing the button (for
less than 3 seconds)=>
page 258, fig. 225. With the ASR deactivated,
the ESP check light comes on, see=>
page 19. The message ASR off
appears in the display as well. On vehicles with front-wheel drive:
deactivation is possible only up to 30 mph (50 km/h) for safety
reasons . Vehicles with all -wheel drive: the ASR can be deactivated
at any speed .
The ASR should normally be activated all the time. Only in certain
exceptional situations when some slip is desirable does it make
sense to deactivate the ASR. Examples:
• when driving with tire chains
• when driving in deep snow or on loose ground and
• when rocking the vehicle loose after it has become stuck .

-Intelligent technology
----'""------- ~---------------------------------------
With the engine turned off
If you listen to the radio, for example, with the engine turned off or
use other MMI functions, the battery is being discharged.
If starting capability is jeopardized due to energy consumption , the
following warning appears in the MMI display:
Please start engine, otherwise system will switch off in
3 minutes.
The warning indicates that the system will be turned off automati­
cally after 3 minutes. If you wish to continue using the functions,
you have to start the engine.
With the engine running
Although electrical energy is generated when the vehicle is being
driven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal consumed
and the battery's state of charge is not optimal.
To bring the energy balance back into equilibrium , consumers
which require especially large amounts of energy are temporarily cut back or switched off. Heating systems in particular require a
great deal of energy. If you notice, for example, that the heated
seats* or the heated rear window are not heating, they have been
temporarily cut back or switched off. These systems will be available
again as soon as the energy balance has been restored.
You will also notice that engine idle speed has been increased
slightly . This is normal and not a cause for concern. By increasing
engine idle speed the additional energy required is generated and
the battery is charged. •
Driver notification in the instrument cluster
d isplay
If battery power drops into the range where it can limit the ability of
the engine to start, this is shown in the instrument cluster display
with the following driver message:
'-' Low battery charge: battery will be charged while driving
This notification reminds you that the starting capability of the
engine may be limited. As soon as you start driving again, the
battery will be recharged and the notification will go out.
Driver notification appears and goes out again
If this driver notification appears after the ignition is turned on or
while driving and it goes out again after a while, the battery has
been adequately recharged.
Driver notification appears and does not go out again
If this driver notification appears after the ignition is turned on or
while driving and does not go out again, the battery's state of
charge is not in the optimal range. Starting ability is restricted . Have
the battery checked as soon as possible at a dealership. •