2008 AUDI S6 air filter

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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

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Manual air circulation I~]
Air recirculation prevents exhaust fumes or other pollu­
tion from entering the vehicle.
Turn in g o n air re circ ulation
- Press [ ~]
=> page 112, fig. 109 => &
Turnin g off air r ecir cul ation
- Press@ agai n, or
- press [AUTO], or
press[@].
In the air recirculation mode, the air in the passenger compartment
is recirculated and filtered to prevent exhaust fumes and other
pollution from entering the vehicle . We recommend that you use the
manual air recirculation under the following conditions:
• when driving through tunnels
• in a traffic jam .
& WARNING
Do not u se this s ett ing f or exte nded p erio ds of time. The w in d ows
c ould f og up since no fre sh air can ente r the v ehi cle . If the
w indo ws fog up , pre ss the air recirculati on button ag ain imm edi ­
a tel y to swit ch off the air r eci rcu la ti on f unction or se le ct defr ost. •
Con tro ls and eq uip­
ment
Rear window defogger QW
I ._ _ _._ __ u.
1-----------------i
Fig. 116 Switch fo r
r e ar window defo gger
Press the (ffiJ switch to turn the rear wi ndow defogger on
and off =:> fig . 11 6.
The rear window defogger works only when the engine is running.
The light in the switch will illuminate when the defogger is on.
The rear window defogger is switched automatically after 10 to 20 minutes, depending on the outs ide temperature .
At very low outside temperatures, the rear window defogger can
switched on continuously by pushing the
Qw button for more than 2
seconds. This remains stored until the ignition is switched off . A
rear window defogger that was switched on also remains stored for
15 minutes after the ignition is switched off.
If the engine is restarted within these 15 minutes, the rear window
defogger is activated for 10 to 20 minutes, depending on outside
temperature. With a vehicle that is parked for a short time, the rear
window defogger does not need to be manually activated again.
<£> For th e sake of th e environm ent
Turn the defogger off when the rear window is clear . When you save
electricity, you save fuel. •
Vehicle care I I Technical data

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The basic settings for the air conditioning can only be ma de
with MM I turned on.
Press the !SETUP] button in the controls to access the
menu.
Select the desired function using the control knob (driver
or passenger) in t he air condi tioning contro ls .
The fol lowing functions can be selected:
• ECON =>
page 120
• Auto recirc . => page 120
• Synchron . => page 120
• Center air vent=> page 121
• Solar operation*=> page 121 •
ECON
The ECON mode helps to save fuel.
The air conditioning is turned off in ECON mode. "ECON" means
"Economy" . By switching off the air conditioning (compressor), you
save fuel.
Please note that vehic le interior temperature cannot be lower than
the outs ide temperature in the ECON mode . The air is not cooled or
dehumidified.
If the vehic le interior becomes too hot or if the windows fog up,
ECON mode should be turned off . As soon as the !AUTO
I button in
the air conditioning controls is p ressed, the system automatically
leaves the ECON mode, and the air conditioning compressor is
turned on again .•
Automatic recirculation mode
An air quality sensor detects incre ased concentratio ns of
pollutants in the outside air and aut omatically switches
to recirculation mode.
We recommend that you always keep automatic air recirculation ON
to prevent polluted outside air from entering the vehicle interior .
I f the
air qualit y sensor located in the air conditioning system
detects po lluted outside air, the sensor decides whether the air
pol lution can be reduced by the factory -installed po llutant filter or
whe ther it is necessary to swi tch to air recirculatio n. With heavy
concentrations of pol lutants, the air conditioning system is
sw itched automatically to rec irculation mode and the supp ly of
outside air is blocked . As soon as the concentration of pollutants in
the outside a ir drops, fresh air is supp lied to the vehic le inte rior
aga in.
I n the event that the windows fog up during automatic air recircu la ­
t ion, you must press the® button immed iately.
Under certain operating conditions , automatic air recircu lation is
sw itched off automatically. With outside temperatures be low about
+10 °C , automatic air recirculation is limited to 30 seconds. With
outside temperatures below about -1 °C and in the ECO N mode,
automatic air recirculation is limited to 15 seconds .•
Synchronization
One climate control se tting f or all seats.
With synchronization active, the driver 's or the passenger's settings
are adopted for the other seats . Al l the other settings that were
made are trans ferred to the other seats. This includes all the c limate
control settings right down to the heated seats.
I f a differen t setting is selected at a "synchronized seat", synchroni ­
z ation is cancelled .•

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current list of oils (manufacturers, brand names etc.) that conform
t o Audi oi l standard VW 502 00 .
Changin g the engine oil
The engine oil and oil filter must be changed according to the
mi leage (ki lometers) and time intervals specified in your vehicle's
Maintenance
& Warranty booklet. Do not exceed these interva ls -
harmful deposits from old engine oil can reduce engine perfor­
mance and can lead to expensive engine repairs.
Changing the oi l at the recommended intervals is so very important
because the lubricating prope rties of oi l decrease gradual ly during
normal vehicle use . If you are not sure when you have your oil
changed, ask your author ized Audi Serv ice Advisor.
Under some circumstances the engine oil should even be changed
more frequently. Change oil more often if you dr ive mostly short
distances, operate the vehicle in dusty areas or mostly under stop ­
and -go t raffic conditions, or when you use your vehicle where
temperatures stay be low freezing point for long per iods.
Detergent additives in the oil will make fresh oil look dark after the
engine has been running for a short time . This is normal and is not
a reason to change the oil more often than recommended.
Damag e or malfunctions due to lack o f mainten anc e
It is essentia l that you change your oi l at the recommended interva ls
using on ly engine oil that complies with Audi oil standard
VW 502 00. Your Limited New Vehicle Warranty does not cover damage or ma lfunctions due to failure to follow recommended
main tenance and use requirements as set forth in the Aud i Owner's
Manual and Maintenance
& Warranty booklet. Your dealer wi ll have
t o deny warranty cove rage unless you present to the dealer p ro o f in
the form of Service or Repair Orders that all schedu led maintenance
was pe rformed in a timely manner. •
Engine oil consumption
The engine in your vehicle depends on an adeq uate
amount of oil t o lubric ate and c ool all of its m oving parts.
In order to provide effective lubrication and coo ling of interna l
engine components, al l interna l combustio n eng ines consume a
certain amount of oil. Oil consumption varies from engine to engine
and may change significant ly over the life of the engine . Typ ically,
engines with a specified break-in period (see=> page 267) consume
more oil du ring the break-in period than they consume after oil
consumption has stabi lized .
Unde r normal conditions, the rate of oil consumption depends on
the quality and v iscosity of the oil, the RPM (revolutions per minute)
at which the engine is operated, the ambient temperature and road
cond itions. Fur ther factors are the amount of oil di lu tion from wate r
condensation or fue l residue and the oxidation leve l of the oi l. As
any engine is subject to wear as mileage bu ilds up, t he oil consump ­
tion may increase over time until replacement of worn components
may become necessa ry .
With all these variables coming into play, no standard rate o f oi l
consumption can be established or specified . There is no alternative
t o regula r and frequent checking of the oil level, see
Note .
If the yel low engine oil level warning symbo l in the instrument
clus ter lights up, yo u should check the oil level as soon as
possible with the oil dipstick=> page 301. Top off the oil at your
ea rliest convenience => page 302 .
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNING S
=> & in "Working in the engine
compartment " on
page 297.

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standards. Therefore, vehicles built for the U.S .A. and Canada differ
from vehicles sold in other countries.
If you plan to take your vehicle outside the continental limits of the
United States or Canada, there is the possibility that
• unleaded fuels for vehicles with catalytic converter may not be
available;
• fuel may have a considerably lower octane rating. Improper fuel
may cause engine damage;
• service may be inadequate due to lack of proper service facilities,
tools or testing equipment;
• replacement parts may not be readily available .
• Navigation systems for vehicles built for the U.S.A. and Canada
will not necessarily work in Europe , and may not work in other coun­
tries outside of North America.
0 Note
Audi cannot be responsible for mechanical damage that could
result from inadequate fuel , service or parts availability .•
Audi Service Repair Manuals and
Literature
Audi Official Factory Service Manuals are published as soon as
possible after model introduction. Service manuals are available
from :
Audi Technical Literature Ordering Center
Call toll -free:
Tel.: 1 (800) 544-8021
(from 8:00 AM to 8:00 PM, EST, Monday through Friday)
or access their website www.audi.ddsltd.com on the Internet to
order repair manuals and other Audi literature. •
Maintenance
General
Your vehicle has been designed to help keep maintenance require­
ments to a minimum. However, a certain amount of regular mainte­
nance is still necessary to assure your vehicle 's safety, economy and
reliability. For detailed vehicle maintenance consult your Mainte­
nance & Warranty booklet .
Under difficult operating conditions, for example at extremely low
outside temperatures, in very dusty regions, when towing a trailer
very frequently, etc., some service work should be performed
between the intervals specified. This applies particularly to:
• oil changes , and
• cleaning or replacing the air filter.
~ For the sake of the environment
By regularly maintaining your vehicle, you help make sure that emis ­
sion standards are maintained, thus minimizing adverse effects on
the environment. •
Important considerations for you and your
vehicle
The increasing use of electronics, sophisticated fuel injection and
emission control systems, and the generally increasing technical
complexity of today's automobiles, have steadily reduced the scope
of maintenance and repairs which can be carried out by vehicle
owners. Also, safety and environmental concerns place very strict
limits on the nature of repairs and adjustments to engine and trans­
mission parts which an owner can perform.
Maintenance, adjustments and repairs usually require special tools,
testing devices and other equipment available to specially trained .,_