2009 AUDI S8 engine
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Cleaning and protection
General information
Regular care preserves vehicle value.
Any automobile is exposed to industrial fumes, corrosive road salt,
muddy dog feet, etc . A well cared for Audi can look like new many
years a fter purchase. Regu lar a nd correct ca re will co ntribu te to
maintaining the beauty and value of your Audi.
Furthermore, good care may be a condition for substantiating a
war ranty claim should co rros ion damage or paint defect s occur .
Your authorized Audi dealer has a variety of dedicated vehicle- care
product s
and can adv ise whic h ones to use for clea ning the e xter ior
and interior of your vehicle.
Whethe r you use p roducts recommended by Audi or other c ommer
cia lly availab le cleaning agents , please make sure you apply them
correctly.
& WARNING
• Cleaning agents may be poisonous. Keep them out of the reach
of ch ildren .
• Heed all caution label s.
• Always read directions on the contai ner before using any
product. Follow the di rection s carefully .
• Most chemical cleaners are concentrated and have to be
d iluted.
• Use spot removing fluids only in well ventilated area s.
• Do not use gasoline , kerosene , die sel fuel , nail polish remover
or other volatile fluids . They may be toxic , flammable or hazardous
in other way s. Do not wash , wa x or dry the vehicle w ith the igni
tion on or the engine running.
& WARNING (continued )
• Do not clean the under side s of chassis , fenders , wheel cove rs,
etc . without protecting your hands and arms. You may cut yourself
on sharp -edg ed metal parts .
• Moisture and ice on brakes may impair braking effi ciency
=> page 272 , "General info rmation ". Test the brake s carefully each
time you wa sh the vehicle.
~ For the sake of the environment
Se lect only enviro nmenta lly friend ly c leaning products . Leftover
clean ing products should not disposed of in the household waste. •
Care of exterior
Washing
Frequen t washing pro tects the vehi cle.
Th e bes t protection against envi ronmental influences is frequent
washing and waxing . How often this is required depends on:
• Ho w much the vehic le is used
• Where the vehic le is parked (garage, in the open under trees,
etc.)
• T he seasonal and weather conditions
• Environmenta l influences
T he longer bird droppings, insects, tree resin, road and industrial
gri me, tar, soot, road salt and ot her materials rema in on the ve hicle
body, the more lasting their destruc tive effects will be . High temper
atu res caused by exp osu re to in tense s un ligh t inte nsify the c orro -
sive effect, particularly when humidity is high as well.
~
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0 Note
• Never try to remove d irt, mud or dust if the surface of the vehicle
is dry . Never use a dry cloth or sponge, since this cou ld scratch your
vehic le's paint or w indows.
• Never wash your car in bright sunlight. Drops of water act as
magnify ing lenses and may damage your paint.
• When you wash your car in the winter : if you rinse your vehicle
with a hose, be careful not to aim the stream of water directly at
locks, or at door or hatch openings -they can freeze shut.
• Never use sponges designed to remove insects, or any kitchen
scouring sponges or similar products. They can damage your paint
finish .
• Never use a dry cloth or sponge to c lean the head ligh ts. Only use
wet cloths or sponges to prevent scratches . It is best to use soapy
water.
For the sake of the environment
In the interest of the environment, the vehicle should on ly be
washed in specia l wash bays. •
Washing your vehicle with a power washer
Cleaning the exterior of your car with a high -p ressure
power washer is safe as l ong as y ou observe a few simple
rules .
-Before using the power washer, make s ure you have read
and understood the WAR NINGS=::;,
& in "General infor
mati on" o n
page 290.
-Always follow the operating instructions for the power
washer. - Make sure that the jet o
n the spray hose pro duces a "fan
sha ped sp ray".
D o
not hold the spray nozzle too close to soft materials.
When cleaning the vehicle with a power washer always follow the
operating instructions. This applies particula rly to the
operating
pre ssure
and the spraying di stance . Maintain a sufficient distance
to soft materia ls such as rubber hoses and sound/vibration dead
ening materia ls (part icularly on the underside of the engine hood).
Do not use a jet which sprays water in a
direct stream or one that
has a
rotating jet.
Water temperature should not exceed 140 °F (60 °Cl.
& WARNING
Never wash tire s with a jet that sp ra ys water in a dir e ct stream .
Thi s could cau se invisible damage to the tire s and we ake n them ,
eve n if th e spra y is from a re lativel y lo ng dis tanc e an d f or a sh o rt
time . Damaged and weakened tire s can f ail and cau se ac cident s
a nd per sona l injur y.
0 Note
To avoid damaging your vehicle, always make sure that there is
suffic ient distance between the spray head and soft materia ls like
rubber hoses, plastic parts and sound -deadening materials . Never
aim the spray head at the same p oint for a long time . This also
applies to cleaning headlights and painted bumpers . Remember :
the c loser the nozzle is to the surface of the material, the greater the
stress on the mater ial. •
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•
prevent it from fading. Slight color variations will develop in normal
use and are not an indication of material deterioration.
0 Note
• Never use chemical solvents (e.g. lighter fluid, turpentine),
waxes, shoe polish or similar products on Alcantara ® surfaces.
• To avoid damage, have stubborn stains removed by a commer
cial cleaning specialist.
• Do not use brushes, stiff sponges or similarly abrasive cleaning
aids .•
Safety belts
Only well-maintained safety belts work reliably when
needed.
- Keep belts clean.
- For cleaning, use a mild soap and water solution . Let
belts dry thoroughly and away from direct sunlight .
- Do not allow inertia reel safety belts to retract before
they are completely dry.
- Check the condition of your safety belts
regularly.
Heavily soiled safety belts may not retract properly.
& WARNING
Damaged safety belts can break in a crash.
• Anything that might damage your safety belts could mean that
you and your passengers would not be adequately protected in an
accident.
• Safety belt performance depends on correct installation. Never
remove belts from the vehicle to clean them.
& WARNING (continued)
• Do not use chemical cleaning agents, bleach or dyes. They have
corrosive properties which weaken the webbing.
• When cleaning your safety belts, inspect them for damage. If
you discover damage, see your Audi dealer.
• Always read and heed all WARNINGS and other information
~ page290. a
Engine compartment
Be especially careful when cleaning the engine compart
ment.
Always switch off the ignition before cleaning the engine ~ &.
Plenum panel
Remove leaves from the plenum panel in front of the windshield
under the engine hood. This prevents the water drain holes from
becoming blocked, and it prevents debris from entering the vehicle
interior through the heating and ventilation ducts.
Corrosion protection
The engine compartment and transmission have been corrosion
protected at the factory.
Good anti -corrosion treatment is very important, particularly in the
winter. If the vehicle is frequently driven on salt treated roads, the
entire engine compartment and plenum panel should be thor
oughly cleaned at the end of winter and retreated to prevent salt
damage. At the same time, the underside of the vehicle should be
washed as well.
If the engine compartment is cleaned at any time with grease
removing solutions
2 l, or if you have the engine washed, the anti
corrosion treatment is almost always removed as well. It is therefore .,_
21 Use only th e correct cleaning solut ions. N ev er us e gasolin e or di ese l fu el.
Vehicle care I t •
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essential to have a long-lasting corrosion protection reapplied to al l
s urf aces, sea ms, joi nts a nd compo nents i n th e en gine c om par t
m ent .
& WARNING
Be aware: The engine compartment of any motor vehicle is a
potentially hazardous area.
• Before working in the engine compartment , be sure to read the
information =>
page 301.
• Before reaching into the front plenum panel, always remove the
ignition key . Otherwise, the windshield wipe r system could unin
tentionally be switched on , possibly causing personal in jury from
the moving wiper linkage .
• Never reach into the area around or touch the radiator fan . The
auxiliary fan is temperature controlled and can switch on suddenly
- even when the ignition is off.
• Do not wash, wax or dry the engine with the engine running .
Moving or hot parts could injure you .
• Do not clean the underside of the chassis , fenders, wheel
covers, or other hard to reach parts without protecting your hands
and arms. You may cut yourself on sharp -edged metal parts.
• Always read and heed all WARNINGS and other information
=>
page 290 . •
Page 305 of 408
•
Fuel supply and filling your fuel tank
Gasoline
Fuel supply Using the right fuel helps keep the environment clean and
prevents engine damage.
Fuel r ecomm end ati on
The fuel recommended for your vehic le is unl eade d prem ium grade
gaso line . See also ~
page 380, "Data". Audi recommends using TOP
T IER Detergent Gasoline with a minimum octane rating of 91 AKI (95
RON). For more information on TOP TIER Detergent Gaso line, please
go to the official website (www.toptiergas .com).
The recommended gasoline octane rating for your engine can also be found on a label located on the inside of the fuel fille r flap. This
rating may be specified as AK I or RON .
Your vehic le may also be operated us ing unleaded regular gasoline
with a minimum octane rating of 87 AKl/91 RON . However, using 87
AKl/9 1 RON octane fuel will slightly reduce engine performance.
Use unle ad ed ga so line only . Unleaded gaso line is avai lable
throughout the USA, Canada, and in most European countries. We
recommend that you do not take your vehicle to areas or countr ies
where un leaded gasoline may not be available .
For more information on refueling your vehicle, see~
page 304.
Octane ra tin g
Octane rating indicates a gaso line's ability to resist engine
damaging "knock" caused by premature ignition and detonation.
Therefore, buying the correct grade of gaso line is very important to
help prevent possible engine damage and a loss of engine perfor
mance.
F ue l supply and fillin g you r fu el tank
Gasoline most common ly used in the United States and Canada has
the following octane ratings that can usua lly be found on the filler
pump:
• Premium Grade : 91 -96 AKI
• Regular Grade: 87 -90 AKI
Explanation of the abbreviations:
AKI = Anti Knock Index= (R +M)/2 = (RON +MON)/2
RON = Research Octane Number
MON
= M otor Octane Number .
0 Note
• Do not use any fue l with octane ratings lower than 87 AKI or 91
RON otherwise expensive engine damage will occur .
• Do
not use leaded gasoline. The use of leaded gasoline w ill
severe ly damage your vehicle's catalytic converter and its abi lity to
control exhaust emissions. •
Blended gasoline
Use of g aso line containing alco hol or M TB E ( meth yl
t er tiary butyl e ther )
You may use unleaded gasoline blended with alcohol or MTBE
(commonly referred to as oxygenates) if the blended mixture meets
the follow ing criteria:
Bl end of g asoline m eth anol (wood al coho l or methyl alc oh ol)
• Anti-knock index must be 87 AKI or higher .
• Blend must contain no more than 3% methanol.
• Blend must contain more than 2% co-solvents.
Vehicle care I t •
Page 306 of 408
Fuel supply and filling your fuel tank
Blend of gasoline and ethanol (grain alcohol or ethyl alcohol}
• Anti-knock index must be 87 AKI or higher.
• Blend must not contain more than 10% ethanol.
Blend of gasoline and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform especially well for
winter or summer driving. During seasonal change -over, we suggest
that you fill up at busy gas stations where the seasonal adjustment
is more likely to be made in time.
0 Note
• Methanol fuels which do not meet these requirements may
cause corrosion and damage to plastic and rubber components in
the fuel system.
• Do not use fuels that fail to meet the specified criteria in this
chapter.
• If you are unable to determine whether or not a particular fuel
blend meets the specifications, ask your service station or its fuel
supplier.
• Do not use fuel for which the contents cannot be identified.
• Fuel system damage and performance problems resulting from
the use of fuels different from those specified are not the responsi
bility of Audi and are not covered under the New Vehicle or the
Emission Control System Warranties.
• If you experience a loss of fuel economy or driveability and
performance problems due to the use of one of these fuel blends,
we recommend that you switch to unblended fuel. •
Gasoline additives
A major concern among many auto manufacturers is carbon
deposit build-up caused by the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another,
they have certain things in common. All gasoline grades contain
substances that can cause deposits to collect on vital engine parts,
such as fuel injectors and intake valves. Although most gasoline
brands include additives to keep engine and fuel systems clean,
they are not equally effective.
Audi recommends using TOP TIER Detergent Gasoline. For more
information on TOP TIER Detergent Gasoline, please go to the offi
cial website (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit
build-ups can rob your engine of peak performance.
(D Note
Damage or malfunction due to poor fuel quality is not covered by
the Audi New Vehicle Limited Warranty. •
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear side panel behind the
fuel filler flap.
If the power locking system should fail, you can still open the flap
manually - for detailed instructions see=>
page 307.
You can find the fuel tank capacity of your vehicle in Technical Data
=> page 380. .,_
Page 308 of 408
Fuel supply and filling your fuel tank Refuelling procedure
- Insert the fuel nozzle from the gasoline pump into the
fuel filler neck as far as it will go.
- Select a medium refuelling rate so that the nozzle switches off automatically when the tank is full.
Putting the fuel cap back on
- After filling your tank, twist the fuel filler cap clockwise
until you hear a definite click.
Close the fuel filler flap.
To avoid fuel spilling or evaporating from the fuel tank always close
fuel filler cap properly and completely. An improperly closed fuel
filler cap may also cause the MIL lamp=>
page 27to come on.
& WARNING
Improper refueling or handling of fuel can cause fire, explosion
and severe burns.
• Fuel is highly flammable and can cause severe burns and other
injuries.
• Failure to shut the engine off while refueling and/or to insert
the pump nozzle fully into the fuel filler neck could cause fuel to spray out of filler neck or to overflow. Fuel spray and overflowing
fuel can cause a fire.
• Never use a cellular telephone while refueling . The electromag
netic radiation can cause sparks that can ignite fuel vapors and
cause a fire.
• Never get back into your vehicle while refueling. If in excep
tional circumstances you must get back in your vehicle while refu
eling, make certain that you close the door and touch metal to
discharge static electricity before touching the filler nozzle again.
Static electricity can cause sparks that can ignite fuel vapors
released during refueling .
& WARNING (continued)
• Never smoke or have an open flame anywhere in or near your
vehicle when refueling or filling a portable fuel container.
• For your safety, we strongly recommend that you do not travel
with a portable fuel container in your vehicle. The container, full or
empty may leak and could cause a fire, especially in a crash.
• If, under exceptional circumstances, you must transport a
portable fuel container, please observe the following:
-Never fill a portable fuel container while it is anywhere in or
on the vehicle (for example, in the luggage compartment, or on
the trunk). Static electricity can build up while filling and can
ignite fuel vapors causing a fire.
- Always place a portable fuel container on the ground before
filling.
- Always keep the filler nozzle completely inside the portable
container before and during filling.
- If filling a portable container made of metal, the filler nozzle
must always be in contact with the container. This will help
prevent static electricity from discharging and cause a fire.
- Never spill fuel inside the vehicle or luggage compartment. Fuel vapors are highly flammable .
- Always observe local and state/provincial laws regarding the
use, storage and transportation of fuel containers.
- Make certain the fuel container meets industry standards
(ANSI / ASTM F852-86l.
0 Note
If any fuel has spilled onto the car, it should be removed immedi -
ately to prevent damage to the paint. _.,
Page 309 of 408
<£> For the sake of the environment
As soon as the correctly operated nozzle switches off automatically
for the first time, the tank is full. Do not try to add more fuel because
fuel may spill out. In addition, the expansion space in the fuel tank
will be filled -causing the fuel to overflow when it becomes warm
and pollute the environment.
[ i] Tips
• Running your engine while refuelling may cause vapors to
escape or even cause fuel to spill out of the tank. This would then
shut off the fuel nozzle before the tank is full.
• Do not refuel your vehicle with the ignition turned on . The fuel
gauge may otherwise not indicate the correct fuel level after
refuelling. •
Unlocking the fuel filler flap by hand
You can open the fuel filler flap by hand if the power
locking system should fail.
Fig . 259 Luggage
compartment : Right
side storage area
Fuel supply and filling your fuel tank
Fig. 260 Luggage
compartment : Emer
gency opening of fuel
filler flap
- Rotate the two pins @ to the vertical position to open
the storage area. ::::;, fig. 259.
- Unclip the loop @ and move it to position ©::::;, fig.
260.
- Pull the loop down to position © to unlock the fuel filler
flap. •
Vehic le care I I irechnical data