fuel AUDI S8 2009 Owner's Manual

Warm and cold -
--------------------------------J
[ i J Tips
If the climate control system is operating in cooling mode, air flows
primarily from the outlets in the center console and in the door
pillars . To achieve adequate cooling, you should never close the
outlets completely. •
Using climate controls economically
Using the climate controls prudently can help save fuel.
When you use the air conditioner, engine power is reduced
and fuel consumption increases. To save fuel, you should
use the air conditione r only when necessary. Also please
n ote the following points:
- If you want to save fuel, activate ECON.
If you are going to drive with the windows open, use
ECON.
W For the sake of the environment
By reducing the amount of fuel you use, you also reduce the amount
of pollutants emitted into the air.•
Applie s to v ehicl es: with so lar slidi ng /tilt ing sunr oof
Solar blower fan /solar roof
With sufficient sunlight, the blower fan continues to
operate with solar energy to bring in fresh air after the
ignition has been switched off.
T he fan motor is operated by solar energy through the solar roof
after the ignition is turned off. Please make certain that vents ©
and © are open to achieve optimal ventilation=>
page 122, fig. 137.
Con tro ls and eq uip­
ment
The ventilation operates only with the sunroof closed or in the tilted
position .
If the vehicle was switched off in the recircu lation mode, the air
conditioning automatically switches to fresh air operation.
Solar operation is not activated at low outside temperatures. •
Windshield defogging/defrosting
Applie s to v ehic les: w ith windsh ield defogg er/defr oste r
Windshield defogger /defroster @
The windshield defogger removes humidity from the
windshield.
Fig . 138 Windshield
defogger switch
-Press the@ button to turn the windshield defogger on
and off~ fig . 138.
The windshield defogger works only when the engine is running.
The indicator light in the button illuminates when the windshield
defogger is turned on.
With a cold engine at outside temperatures below 41 °F (+5 °C) and
in !AUTO
l operation, the windshield defogger turns on automati ­
cally. Depending on outside temperature, the windshield is heated _,.
Vehicle care I I irechnical data

• ..__w_ a_ r_m _ a_ n_d_ c_ o_ ld __________________________________________________ _
for a maximum of 4 minutes. The temperature for the climate
control must be selected so that it is operating in the heating mode.
When selecting the program setting
@, the windshield
defogger/defroster is switched on automatically at outside temper ­
atures below 41 °F (+5 °C). Depending on outside temperature, the
windshield is heated from 2 up to a maximum of 4 minutes.
The windshield defogger is deactivate d in ECON mode .
[ i ] Tips
• If a crack forms in the windshie ld due to a foreign object (e .g . a
stone chip), the defogger/defroster is not turned on . This prevents
t he crack from spreading.
• We recommend that you locate an Audi dealership immediately
to have the windshield replaced. •
Rear window defogger [ml
Fig. 13 9 Sw itch for
r ea r wi ndow defo gger
Press t he (ffi] switch to turn the rear w indow defogger o n
and off=> fig. 139.
The rear window defogger works only when the engine is running .
The indicator light in the butto n illuminates when the rear win dow
defogger is turned on . T
he rear window defogger will switch off automatically after a short
t ime . The time the rear window defogger remains on wi ll vary
depending on the outside temperature.
At very low outside temperatures, the rear window defogger can be switched on continuously by push ing the
QW bu tton for more than 2
seconds. This remains stored unti l the ignition is switched off .
A rear window defogger that was switched on also remai ns stored
for 15 minutes after the ignition is switched off . If the engine is
r estar ted within these 15 minutes, the rear w indow defogger is also
activated, depending on outside temperature. With a vehic le that is
par ked for a short time, the rear window defogger does not need to
be manua lly activated again.
ci> For the sake of the environment
Turn the defo gger off when the rear w indow is clea r. When you save
electricity, you save fuel. •

• .___w_ a_ rm __ a_ n_ d_ c_o _l_d ________________________________________________ _
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. •
Basic settings [SETUP ]
General
The basic settings for the climate control are performed in
the(SETUP] menu.
Fig. 141 MMI display:
Setup climate control
The basic settings for the air conditioning can only be made
with MMI 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 the air conditioning controls.
The following functions can be selected:
• ECON
~ page 126
• Automatic recirculation ~ page 126
• Synchronization ~ page 127
• Center air vent~ page 127
• Rear seat operation* ~ page 127
• Solar operation* ~ page 127•
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 vehicle interior temperature cannot be lower than
the outside temperature in the ECON mode. The air is not cooled or
dehumidified.
If the vehicle interior becomes too hot or if the windows fog up,
ECON mode should be turned off. As soon as the
( AUTO ] button in
the air conditioning controls is pressed, the system automatically leaves the ECON mode, and the air conditioning compressor is
turned on again .•
Automatic recirculation mode
An air quality sensor detects increased concentrations of
pollutants in the outside air and automatically switches
to recirculation mode.
We recommend that you always keep automatic air recirculation ON
to prevent polluted outside air from entering the vehicle interior.
If the
air quality sensor located in the air conditioning system
detects polluted outside air, the sensor decides whether the air
pollution can be reduced by the factory-installed pollutant filter or
whether it is necessary to switch to air recirculation . With heavy
concentrations of pollutants, the air conditioning system is
switched automatically to recirculation mode and the supply of
outside air is blocked. As soon as the concentration of pollutants in ..

On the road -
----------------
Parking
To prevent a parked vehicle from rolling away, there are a
few things you should do.
When you park your vehicle , do the following
- Stop the vehicle using the brake peda l.
- Pull the switch to app ly th e electromechanical park ing
brake .
- Move t he selector lever into the
P positio n ~ &-
- Switch off the engine and remove the ignitio n key f rom
the ignition loc k.
When you park your vehicle on hills , do the
following
- Stop the vehicle using the brake peda l.
- Pull the switch to app ly th e electromechanical par king
brake.
- If you are parkin g headed
downhill , turn t he fro nt whee ls
toward the curb.
- If you are parking headed
uphill , turn t he front w heels
awayfrom the curb.
- Move the se lector lever into the
P position.
- Sw itch off the engine and rem ove the ignitio n key f rom
the ign ition lock.
& WARNING
Thi s is how you can reduce the r isk of injury when l eav ing your
v ehicle.
Controls and equip ­
ment
& WARN ING (c ontinued )
• Neve r p ark the vehi cle wh ere it c an come in cont act with dry
gra ss, s pilled fuel or any oth er fl amm able m ater ials.
• Wh en p arking on hill s, always turn the w hee ls s o that the front
wheel s will fir st roll into the cu rb , if the veh icle should start to roll.
• Never allo w anyone -e spe ciall y small ch ildren -to r em ain in the
vehi cle when it i s lo cked . Lo cked doors make it more diffi cult fo r
r e s cuers to acce ss the pa ssenger compartment in the event of an
emergen cy. Danger t o life!
• Never le ave chi ldren un supervi sed in the vehicle . Children
c ould release the p arking brake or mo ve the gear shift le ve r o ut of
g ear. The vehicle could start to roll away and cau se an a ccident.
• No matt er w hat the se a son i s, the temper atu re in a pa rked
vehicle can rea ch d angerou s levels.
0 Note
• Please exe rcise care when you park your vehicle in pa rking areas
with parking barriers or curbs . Parking barriers and curbs vary in
height and cou ld damage your bumper and re lated components as
the front of your vehicle moves over a barrier or curb that is too high, as you park or as you back out of a parking spot . In order to be
sure that no such damage can occur , you may w ish to stop short of
having the front tires of your car touch the parking barrier or curb.
• Please also exercise exceptional care when you drive up or down
steep ramps or drive over curbs or other obstacles, for which the
vehicle is not designed, because components of the vehicle close to
the ground, such as bumper covers, spoilers and suspension and exhaust system components, may become damaged. •
I • •

_______________________________________________ A_ u_t _o _ m_ a_ t _i_ c_ t_r _a _n _ s_ m __ is_s_ i _o _ n __ lfflll
Autom ati c selec to r l eve r lock
The se lector lever is locked in the P and N positions when the igni ­
tion is turned on. To move the lever from these positions the driver
must depress the brake pedal. As a reminder to the driver, the
follow ing warning appears in the instrument cluster disp lay when
the selector is in
P and N:
When stationary app ly foot brake while s electing gear
A time delay e lement prevents the selector lever from locking when
it is moved through the
N position (going from R to Dl. The locking
e lement will lock the selector lever if the lever is left in N (Neutral)
for more than approximately 1 second, without the brake peda l
being pressed.
At speeds above about 3 mph (5 km/h) the Automatic Shift Lock is
automatically deactivated in the
N posi tion .
Interl ock button
The lock button on the selector lever prevents the lever from being
accidentally shifted into certain positions. Pressing this button
deactivates the selector leve r lock. Dependi ng on the direction of
the shift, the selector lever locks at different positions. The positions
are highligh ted in the illus trati on =>
page 168, fig . 187.
Igniti on k ey saf ety in te rlo ck
The key canno t be removed from the ignition un less the selector
lever is in the
P park position. When the ignition key is removed, the
selector lever wil l be l ocked in the
P posi tion .•
Kick -down
T he kick-down feature allows the vehicle to genera te
maximum accelera tion.
When you press the acce lerator pedal beyond the resistance point
that is reached at ful l throttle, the transmission wi ll select a lower
gear ratio based on vehic le speed and engine RPM . The engine RPM
wil l be control led to produce maximum vehic le acceleration as long
Controls and equip ­
ment
as you continue to press the acce lerator pedal beyond this resis ­
t ance poin t.
& WARNING
Be careful when u sing the ki ck -down feature on slippery road s.
Rapid acceleration ma y cause the vehicle to skid . •
Dynamic shift program (DSP)
T he aut omatic tr ans mission is electro nically c ontrolle d.
The transmission is se lf adapting and will automaticall y select the
b est shi ft program su ited to the driving conditio ns and driving style.
The transmission will select one of the
e conomy programs when
you drive at a s teady speed or a g radually changing speed without
heavy acceleration. This achieves optimum fuel efficiency, with ear ly
upshifting and delayed downshifting .
The trans mission will au tomatically select the
sporty shift progra ms
when you drive at higher speeds, or with heavy acce leration and
frequent ly cha nging speeds . Upshifts ar e delayed t o make f ull use
of engine power . Downshifting takes place at higher engine speeds
than in t he ec onomy p rograms .
The selection of the most su itable shift program is a continuous,
automatic process . The driver can a lso make the transmission
sw itch to a sporty progra m by
quickly pressing down the gas peda l.
This causes the transmission to shift down to a lower gear to
achiev e rapid acc elerati on, e.g . fo r q uickly pass ing another vehicle .
You do not need to press the gas pedal into the kick-down range.
After the transm ission has upshifted, the original progra m is
selected according to your driving sty le.
An additiona l shift program allows the automatic transmission to
select the proper gear fo r uph ill and downhi ll gradients.
This prevents the transmission from upshifting and downshifting unnecessa rily o n hills . The transm ission wi ll shift down to a lower _,.
I • •

• ..__A_ u_ t _o_ m_ a_ t_ i_ c _ t_r _a _n_ s_ m_ is_ s_i o _ n ________________________________________________ _
gear when the driver presses the brake pedal on a downhill
gradient. This makes use of the braking effect of the engine without
the need to shift down manually.•
Manual shift program
Using the manual shift program you can manually select
gears.
Fi g. 18 8 Ce nte r
co nso le: s hiftin g the
t ip tr on ic® ma nually
F ig . 18 9 Disp lay:
ma nua l shi ft prog ra m ,
selecte d gear high­
l ig hte d
Swit ching to manual shift program
With the selecto r lever in D, push the lever to the rig ht.
T he d isplay will s how
6 5 4 3 2 1 as soon as the selector
lever is moved. The gear you se lect will also be high­
lighted => fig . 189.
To upshift
Push the selector lever forward to the plus position 0
=> fig. 188.
To downshift
- Push the lever to the minus position Q.
When accelerating, the transmission will automatically shift into
gears 1 , 2, 3, 4 or 5 before the engine reaches its maximum RPM .
If you apply a light throttle when accelerating, tiptronic® will auto ­
matically shift from 1st to 2nd gear to save fuel. If you apply a heavy
throttle, the transmission will stay in 1st gear until near maximum
RPM is reached, or unti l the driver shifts into 2nd gear .
If you take your foot off the accelerator peda l when driving down a
steep incline, tiptronic® will downshift from the selected gear into
the next lower gear until it reaches 1st gear, based on road speed
and engine RPM. Automatic downshifting is interrupted as soon as
you apply the thrott le again .
[ i ] Tips
• When you shi ft into the next lower gear, the transmission will
downshift only when there is no possibi lity of over -revving the
engine.
• When the kickdown comes on, the transmission wil l shift down
to a lower gear, depending on vehicle and eng ine speeds.
• Tiptronic® is inoperative when the transmission is in the fai l-safe
mode. •

Driving and environment
The first 1,000 miles (1,500 km) and afterwards
!\Jew engine
The engine needs to be run-in during the first 1,000 miles
(1,500 km).
F o r th e fir st 600 mil es (1,000 kilomet ers):
Do not use full throttle.
- Do not drive faster than 3/4 of the top speed marked on
the speedometer.
- Avoid high engine speeds .
From 600 t o 1,000 mil es (1,000 t o 1,500
kil om eter s):
- Speeds can
gradually be i ncreased to t he maximum
permiss ible road or engine speed .
During and aft er br eak-in p eri od
- Do not rev the engine up to high speeds when it is cold. This applies whether the transm ission is in N (Neutral) or
1n gear.
Aft er the br eak-in p eriod
- D o not exceed max imum e ngine speed unde r any
circumstances.
- Upshift into the next higher gear
before reac hing the red
area at the end of the tachome ter scale ~
page 12 .
Controls and equip­
ment Safety first Vehicle operation
Dri
ving and environm ent
During the first few hours of driving, the eng ine's internal friction is
higher than later when all the moving parts have been broken in.
How well this break -in process is done depends to a considerable
extent on the way the vehicle is driven during the first 1,000 miles
(1,500 ki lometers).
0 Not e
Extreme ly high engine speeds are automatically reduced. However,
these rpm limits are programmed for an engine well run-in, not a
new engine .
~ For the sake of the environment
Do not drive with unnecessarily high engine speeds -upshifting
early saves fuel, reduces noise and protects the environment .
New tires
If your v ehic le is running on new tires, driv e particularly
carefu l for the first 350 miles (500 ki lometers) after fitting.
& WARNING
N ew tir es tend to be slipp ery and mu st al so be "broken -in ". B e
su re to r ememb er thi s during th e fir st 350 m ile s ( 50 0 k ilome te rs).
Brak e gen tly. Av oid follow ing close ly behind other vehicl es or
o the r s ituati ons that mig ht requi re su dde n, ha rd b raking.•
Vehicle care Do-it-yourself service Technical data

___ D_ r_iv _ in_... g"'- a_ n_ d_ e_ n_ v_i_r _o _n_ m_ e_n_ t _______________________________________________ _
New brake pads
--
Remember that new brake pads do not have a full braking
effect during the first 250 miles (400 kilometers) after they
are installed .
New brake pads have to be "burnished in" before they have optimal
grab =>& .
During the break -in period, you should avoid putting severe loads
on the brakes . Severe loads include, for examp le, sudden hard
braking, in particular at very high speeds or, for example, on moun­
tain passes.
& WARNING
New brake pads don't have the best stopping power and must be
"broken-in" during the initial 100 to 150 miles (150 to 200 kilome­
ters) of normal city driving. You can compensate for this by
pressing the brake pedal more firmly . This also applies later when
new pads are installed.
:J
Catalytic converter
It is very important that your emission control system
(catalytic converter) is functioning properly to ensure that
your vehicle is running in an environmentally sound
manner.
- Always use lead-free gasoline:=> page 303, "Fuel supply".
- Never run the tank down all the way to empty.
- Never put too much motor oil in your engine ==>
page 314,
"Adding engine oil 't=:;r\11
•
Never try to push- or tow-start your vehicle.
The catalytic converter is an efficient "clean-up" device built into the
exhaust system of the vehicle. The catalytic converter burns many
of the po llutants in the exhaust gas before they are released into the
atmosphere.
The exclusive use of unleaded fuel is critically important for the life
of the catalytic converter and proper functioning of the engine.
& WARNING
• Do not park or operate the vehicle in areas where the hot
exhaust system may come in contact with dry grass, brush, fuel
spill or other material which can cause a fire .
• Do not apply additional undercoating or rustproofing on or
near the exhaust manifold, exhaust pipes, catalytic converter or
heat shields. During driving, the substance used for undercoating
could overheat and cause a fire .
0 Note
• Be aware that just one tank filling with leaded fuel will alr eady
seriously degrade the performance of the catalytic converter.
• Do not exceed the correct engine oil level=>
page 314.
• Do not drive until the fuel tank becomes completely empty. The
engine could misfire. Unburned fuel could also get into the exhaust
system and this could cause the catalytic converter to overheat.
• Do not turn off the ignition while the vehicle is moving.
• Do not continue to operate your vehicle under these conditions,
as otherwise fuel can reach the catalytic converter. This could result
in overheating of the converter, requiring its replacement .
• To assure efficient operation of the Emission Control System:
- Have your vehicle maintained properly and in accordance with
the service recommendations in your Warranty
& Maintenance
booklet. •

- Lack of proper maintenance as wel l as improper use of the
vehic le wi ll impair the func tion of the emission con tro l system
and could lead to damage.
<£> For the sake of th e envir onm ent
Even when the Emission Control System is operating properly, the
exhaust gas can have a su lfur -like exhaust gas smell under some
operating states . This depends on the sulfur content of the fuel
being used. Using a different brand of fue l may help, or filling the
tank with lead-free super grade gasoline. •
Avoid damaging the vehicle
When you are driving on poor roads, or over curbs, steep ramps,
etc., make certain that low- lying parts such as spoi lers and exhaust
system parts do not bottom out and get damaged.
This is especially true for vehicles with low-slung chassis (sports
chassis) * and fully loaded vehicles .
a
Operate your vehicle economically
and minimize pollution
General
Your personal style of driving will determine the economy
of your vehicle, as well as exhaust and noise levels.
Fuel economy, environmental impact, and wear on your engine,
brakes and tires largely depend on three factors:
• your personal driving style
• operating cond itions
• technica l limitations
Controls and equip­
ment Safety first Vehicle operation
Dri
ving and environm ent
If you anticipate what you need to do next and drive economica lly,
you can easily cut your fuel consumption by 10 -15 percent . This
section wil l give you some tips on how you can help the environ­
ment and your pocketbook.
[ i ] Tips
The consumption estimates as published by ENV IRONMENTAL
PRO TEC TION AGENCY (EPA) and Transport Canada may not corre ­
spond to your actua l consumption on the road, which wi ll vary
depending upon vehic le load and speed, road and weather condi­
tions, trip length, etc. •
Drive smoothly and keep a lookout ahead
Vehicles use the most fuel when they ore accelerating.
-Avoid unnecessary accelerat ing and braking.
Vehicles use the most fuel when they are accelerating . If you antici­
pate what is going to happen next, you wi ll need to brake less and,
thus, acce lerate less. Let the vehicle coast whenever possib le - for
examp le when you see that the next traffic light is red. •
Avoid full throttle
Driving at moderate speeds saves fuel and improves your
mileage.
-Try and keep well below your car 's max imum speed.
Acce lerating gently reduces fue l consumption , engine wear, and
does not disturb the environment.
Fue l consumption, exhaust emissions and engine noise increase
disproportionately at high speeds . If you drive at approximate ly
three quarters of top speed, fuel consumption wil l be reduced by
Vehicle care Do-it-yourself service Technical data

___ D_ r_i v_ in_... g"'- a_ n_ d_ e_ n_ v_i_r _ o _n_ m __ e_n _ t _______________________________________________ _
one half. Never drive faster than the posted speed limit and weather
conditions permit. •
Reducing unnecessary =citing
Even when your car is just idling it burns up fuel.
- Shut the eng ine off when you are not driving the vehicle .
- Do not warm up the vehicle by letting the engine run at
idle.
It makes sense to shut off the engine in traffic jams, when waiting
for trains to pass at rai lroad crossings , or at traffic lights that have
long waits on red. Turning the engine off for just 30 -40 seconds
saves more fuel than is burned starting the engine again .
It takes a long time for the engine to warm up fu lly when it is
running at idle. However, wear and noxious emissions are especially
high when the engine is warming up. So you should drive away as
soon as you start the engine and avoid running at high rpms while
the engine is still warming up.
0 Note
Do not leave engine idling unattended after starting . If warning
lights should come on to indicate improper operation, they would
go unheeded. Extended idling also produces heat, which could result in overheating or other damage to the vehicle or other
property .•
Regu1ar ma1--.tenance
A badly tuned engine unnecessarily wastes a lot of fuel.
-Have your vehic le serviced at regular intervals .
By having your vehicle regularly serviced by an Audi dealer helps to
ensure that it runs properly and economically. The condition of your
vehic le not only affects its safety and abi lity to hold its value, it also
affects
fuel con sumpt ion.
C hec k your o il e ach time you fill your t ank.
The amount of oil used is related to engine load and speed.
It is norma l for the oil consumption of a new engine to reach its
lowest va lue after a certain mileage has been driven.
You must drive your vehicle about 3,000 miles (5,000 kilometers) before you can properly assess oil consumption .
This also applies to fuel consumption and engine output .
0 Note
• Have your vehicle maintained properly and in accordance with
the service recommendations in your Warranty
& Maintenance
booklet. Lack of proper ma intenance as well as improper use of the
vehic le wi ll impair the function of the emission control system and
cou ld lead to damage.
• Do not alter or remove any component of the Emission Control
System unless approved by the manufacturer.
• Do not alter or remove any device, such as heat shields,
switches, ignition wires, valves, which are designed to protect your
vehicle's Em ission Control System and other important vehicle
components .•
Fewer short tr ips
Fuel consumption will always be relatively high on short
trips.
- Try to avoid driving short dista nces wi th a cold engine. _,