2010 AUDI S8 brake

Cleaning and protection Ill
---------------=---------=----
The best way to remove snow from w indows and mirrors is to use a
br ush . Use a non- abra sive
plastic ice scraper -better st ill, a spray
deicer -to remove
ice from w indows and mirro rs .
Oil, grease or s ilicone residue can be removed with
glass cleaner or
s ili cone remover . However, wax res idue requires the use of a spe cially
formulated solvent. Please contact your A udi dea ler for advice on safe
pro duc ts for w ax remov al.
W indows should also be cleaned on the inside at regu lar i ntervals .
N ever dry wi ndows w it h the same chamo is that you use to dry painted
s ur fa ces. Wax res idue on the chamois ca n impair vis ion t hrough t he
windows.
& WARNING
• Always read and heed all WARNINGS and other information
=> page 270 .
• The wind shield must not be treated with water-repellent
material s. They can in crease glare und er poor visibility conditions
such as wetness , darkness , or when the sun is low on the horizon .
In addit ion, they can cause the w indshield wipers to chatter.
0 Note
• N ever use warm o r hot water to remove snow and ice from
windows and mirrors . This cou ld cause the glass to crack .
• To prevent damage to the wires of the rear defogger, do not place
any a dhesive stickers on t he inside of the rea r window over the wires.
• To help prevent dirt from scratching the window, a lways scrape in
a forward direction -pushing the scrape r away from you -neve r back
and fort h.•
Safety first
Weatherstrips
Com plete car care includes the weat herstrips as well.
- Ap ply a sui tab le rubb er condi tion er to t he w eathers tri ps
f rom tim e to t ime .
To be able sea l prope rly, the weat hers tr ips arou nd the hood, doo rs,
rear lid, etc. must remain pliable. Spray the weathe rst rips with sili­
c one or coat them with tal cum powder o r g lyce rine to reta in the flex­
ibility of the rubber and to protect them against freezing in the
winter.
& WARNING
Alway s read and heed all WARNINGS and other information
=> page 2 70.
[I) Tips
Keep silicone sprays off the winds hie ld to avoid wiper smear in ra in. •
Cast (light) alloy wheels
Cast (light) all oy wheels requir e spe cial c are.
- Was h the whe els wi th a spo nge or h ose br ush ev er y ot her
w eek .
- Fo r deep cleaning afterwar ds, use on ly a dedi cated
acid­
free cas t all oy whee l cleaner.
- R ub a coat of
liquid wax onto the r ims eve ry three month .
Be su re to reac h and trea t all parts o f the rim.
To preserve the decorative appearance of the cast alloy whee ls , some
special care is necessa ry . In ad d it io n to road dirt and s alt , bra ke du st
is a lso corrosive . If left on for too long, brake dust can cause pitting . ..,_
Vehicle care Technical data

-~_C_ le_ a_n_ i_ n_ g=- a_ n_d___. p_ ro_ t_e _c_ t_ i_o _n ___________________________________________ _
Use only special acid-free cleaners formulated for a lloy r ims . Sa fe
pro ducts are availabl e at your A udi de aler. Never leave t he cle aner on
the rims longe r tha n spec ified on the label. If not rinsed off promptly,
the ac id contained in some cleaners can attack the t hreads on the
w heel bolts.
Never use abrasive or metal po lish ing cleaning agents.
If the protec ­
t ive coa ting ha s been ch ipped, e.g. by k icked up road dirt, touch it up
as soon as possible.
& WARNING
• Moisture and ice on brakes may affect braking efficiency
=> page 254, "General information ". Test the brakes carefully
each time you wash the vehicle.
• Always read and heed all WARNINGS and other information
=:>page 270 . •
Body cavity sealing
The body cavity sealing does not need to be checked .
All body cavit ies which cou ld be affected by corrosion have been thor ­
oughly p rotected at the factory .
Th is sea ling does not require any inspection or additiona l treatment.
If any wax sho uld seep ou t of the cavi ty when the ambien t tempera ­
ture is h igh, it can be removed w it h a plastic scraper and a suitable
so lvent .
& WARNING
Solvents can be dangerous.
• Benzine is flammable and toxic. If you use benzine for
removing the wa x, keep sparks, flame and lighted cigarettes
away. Never dump benzine on the ground, into open st reams or
down sewag e drains.
& WARNING (co ntinued )
• Be su re to observe all safety and environmental regulations.
Follow all instructions on the container.
• Always read and heed all WARNINGS and other information
=:>page 270 . •
Chassis
Hav e the undercoa ting checked fo r damage f rom time to
ti me.
The lower body shell of your Audi is a lso thoroughly protected against
c orrosion .
Any damage to the u nde rcoat ing caused by road ha za rds sho uld be
repaire d promptly.
& WARNING
Too mu ch undercoating in the wrong places can caus e a fire.
• Do not apply additional undercoating or rustp roofing on or
near the exhau st manifold , exhaust pipes, catalytic converter or
heat shields. While dr iving, the substance used for undercoating
c ould overheat and cau se a fire.
• Always read and heed all WARNINGS and other info rmation
=> page 270 . •
E x haust tail pipes
Road s alt and ot her c orrosive mater ials w ill damage the m ate rial in
the exhaust ta il pipes if they a re not cleaned regularly. Do not clean
t he t ail pipes w ith w heel cleaner, p aint polish, chrome po lish or o ther
abrasive cleaners. C lean the tail pipes with car care products that are
sui table for sta inless s teel.
~

___________________________________________ C..:...._ h:....:e :....:c:..:. k.::..: i..:.. n .:..:g:!:....:: a....:. n..:.. d~ f:....:. i.:..ll :.:.i:....:n :.:g !....- __
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage=:> &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area=>& .
& WARNING
To help avoid injury, before you check anything under the hood:
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake.
Safety first
& WARNING (continued)
• Move selector lever to "P" (Park).
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire. • Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine is
running or being started, never touch:
-Ignition cables
- Other components of the high voltage electronic ignition
system.
• If you must perform a check or repair with the engine running:
- First, fully apply the parking brake, move selector lever to
"P" (Park). .,
Vehicle care Technical data

___ C_h_ e_c _k _i_n -=g :a,__ a_n_ d_ f_ i_ l _li _n _,g;._ __________________________________________ _
& WARNING (continued)
-Always use extreme caution to prevent clothing, jewelry, or
long hair from getting caught in the radiator fan, V-belts or
other moving parts, or from contacting hot parts. Tie back hair
before starting, and do not wear clothing that will hang or
droop into the engine.
• Minimize exposure to emission and chemical hazards=:>
/1::..
& WARNING
California Proposition 65 Warning:
• Engine exhaust, some of its constituents, and certain vehicle
components contain or emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and certain products
of component wear contain or emit chemicals known to the State
of California to cause cancer and birth defects or other reproduc­
tive harm.
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive harms. Wash hands after
handling.
0 Note
When adding fluids, always make sure that they are poured into the
proper container or filler opening, otherwise serious damage to
vehicle systems wi ll occur.
ci> For the sake of the environment
To detect leaks in time, inspect the vehicle floor pan from underneath
reg ular ly. If yo u see spots from oil or other vehicle fluids, have your
vehicle inspected by an authorized Audi dea ler.•
Engine compartment
Applies to veh icles: w ith 8 -cylinde r engine
Engine compartment overview : a-cylinder
engine
These are the most important items that you can check.
Fig. 241 Typical layout for containers, engine oil dipstick and engine oil filler
cap
© Windshield/headlight washer container (0 ) ....... .
@ Brake fluid reservoir ( ) .................. .. .. . .
® Engine oil filler cap ('l=r.) ............ .. .... .. .. . .
© Engine oil dipstick (orange) .............. .. . ... . .
© Power steering reservoir . .. .. .. .. .. ... .... .. .. . .
© Coolant expansion tank (-L ) ........... .. .. .. .. . .
305
299
294
293
257
297 ..

_____________________________________________ C_h _ e_ c_ k_in --= g'-- a_n _d_ f_i _ll _i_n -=g ::;__ ____..
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNINGS=>
& in "Working in the engine
c ompartment " on
page 289 . •
Applies to vehicles : w it h 12-cylin der engine
Engine compartment overv iew: 12-
cylinder engine
These are the most important items that you can check .
Fig. 242 T ypic al la yo ut fo r co nta iner s, engi ne oil dip stick and e ngine o il fill er
cap
(D W indsh ield/ headligh t washer con tainer (Q ) . . . . . . . . 305
@ Brake fluid reservoir(' ) . . . . . . . . . . . . . . . . . . . . . . . . 299
® Engine oil dipst ick (o range) . . . . . . . . . . . . . . . . . . . . . . 293
~ehicle OP-eration
© Engine oil filler cap (~) .. . ...... ............. . .
© Coolant expansion tank (-1- ) .................... .
& WARNING
294
297
Before you check anything in the engine compartment , alw ay s
read and heed all WARNINGS=>
& in "Working in the engine
c ompa rtment " on
page 289 .
[ i ] Tips
The coo la nt expansion tank is located under a cover. •
Engine oil
Engine oil specifications
The engi ne oil used in your Audi needs the right k ind of oil .
The eng ine in your Audi is a soph isticated powerplant that was built
to exacting specificat io ns. This engine needs the r ight kind of engine
oil that meets sp ecifications regard ing qua lity and viscosity so that it
can run smoothly and reliably . Choosing the right oil and chang ing oi l
with in the time and mi leage intervals prin ted in your veh icle's
Warranty
& Maintenance booklet matters a lot more today than it did
years ago . Audi has dev eloped a special quality st andard for engine o il
that wi ll help assure that your vehicle's engine will get the l ubrication
i t n eed s fo r proper ope ration .
Modern engine lubrication has taken a quantum leap in the last few
years . Many sy nthet ic oils available today provide bette r engine lubri ­
cat ion that can outlast t raditional petroleum- based oi ls, mak ing
them a smart choice for use throug hout the life of your Audi.
Whethe r you u se syntheti c or pet roleum-b ase d engine o il, the oil that
you use must conform to Aud i's o il quality standard VW 502 00 to
help keep you r ve hicl e's engine run ning smooth ly and help prevent ..,.
Vehicle care Do-it-yourselt service iTechnical data

Checking and filling ------------------------------- ---=.:..:..=.:=~..:::..:.....:..:.;__ ___ _::,______,.J
& WARNING (co ntinued )
• Antifreeze is pois onous. Alway s store antifreeze in its original
container and well out of the r each of children.
• If you drain the coolant , it must be caught and safely stored in
a proper container clearly marked "poi son ".
0 Note
• Coolant poll utes the environment and could cause an engine fire .
Excess coolant w ill be forced out throug h the pressure re lief valve in
t he cap when the e ng ine becomes hot .
• If, in an emergency, o nly wate r ca n be adde d, the correct ratio
between water and antifreeze=>
page 296 must be restored as soon
as possib le.
W For the sake of the environment
Dra ined coolant shou ld not be reused. A lways dispose of used coo lant
w hile observ ing a ll enviro nment al regul ations . •
Radiator fan
The radiator fan switches on automatically by itself
T he radi ator fa n is d riven by the engine via th e V-bel t. The v iscous
clutch regu lates the speed of the fan accord ing to the temperature of
t he coolant.
An auxiliary e lectr ic rad iator fan* sw itches on and off depend ing o n
coo la nt tempe rat ur e and othe r vehicle ope ra ting condi tions .
After you switch the engi ne off, the auxilia ry fa n can cont inue r unning
for up to 10 minutes - even w ith the ignition off . It can even switch on
agai n lat er by itse lf => & , if
• the tempe rature of the e ngine coolant rises due to the heat build ­
up from the eng ine in t he engi ne comp art ment, or
Vehicle OP-eration
• the engine compartment heats up because the veh icle is parked in
in tense s unlight.
& WARNING
• To reduce the ri sk of personal injury never touch the radiator
fan.
• The auxiliary electri c fan is temperature controlled and can
switch on suddenly even when the engine is not running .
• The auxiliary radiator fan switches on automatically when the
engine coolant reaches a certain temperature and will cont inue to
run until the coolant temperature drops .•
Brake fluid
Checking brake fluid level
T h e b rake fluid l evel can be ch ecked with a quick glance.
-w ;:;
Fig. 24 8 En gine
compa rtme nt: Brak e
f luid re se rv oi r
Be fore you chec k anyt hin g in the engine compartment,
always read and heed all WARNINGS~ & in "Working in
t h e engine compartm ent" on
page 289 . .,_
Vehicle care Do-it-yourselt service iTechnical data

___ C_ h_e _c_ k_ i_ n ~ g~ a_ n _ d_ f_il _l _in _ g ____________________________________________ _
- Read the brake fluid level from the brake fluid reservoir
=> fig. 248 . T he brake fluid level mus t be between the
" M IN" and "MAX" markings.
The br ake fl uid re se rvoir is loc ated at the rear pa rt iti on of the engine
compartment on the left side~ page 290.
T he f lu id level may drop slightly after some time due to the auto­
matic adjus tment of t he b rake pads. This is not caus e for alarm.
If the brake flu id leve l falls considerably below the "MIN" mark, t he
br ak e wa rning/ind ic ator lig ht ( U.S . model s:
BRAKE , Can adi an mod els:
«D> ) will come on~ page 20 and~ page 28. Do not continue to
operate the vehicle . The comple te brake system sho uld be thoro ughly
checked by an author ized A udi dealer or ot her qualified facility and
t he ca use correcte d. If the b rake fl uid leve l is too low, the bra ke
wa rning/in dicator light will illu mi nate . Con tact an au thorized Aud i
dealer
immediately .•
Changing brake fluid
H ave the brake flui d changed by an ex perienc ed techni­
cian.
Brake flui d abso rbs mois ture from t he a ir . If t he wa ter con ten t in the
brake fl uid is too hig h, corros io n in the b rake system may res ult afte r
a period of time . The boiling po int o f the bra ke fl uid will also decrease
cons iderab ly and decrease brak ing perfo rmance.
The refore, the brake fl uid m ust be changed
every two years . Always
use new bra ke fluid w hich conforms to Fede ral Motor Veh icle St an­
dard "FMVSS 116 DOT 4" .
Th e b rake fl uid reservoi r ca n be diffi cult to rea ch, there fore, we
recommend that you have the bra ke fluid c hanged by your author ized
Audi dealer. Your dea ler has the correct tools, the right b rake fl uid
and the know-how to do t his for you .
& WARNING
• Brake fluid is poisonous. It must be stored only in the closed
original container out of the reach of children!
• Brake failure can result from old or inappropriate brake flu id.
Observe these pre cautions:
- Use only brake fluid that meets SAE specification
J 1703 and
conforms to Federal Motor Vehicle Standard 116. Always che ck
with your authorized Audi dealer to make sure you are us ing
the correct brake fluid. The correct type of brake fluid i s also
indicated on the brake fluid reservoir .
- The brake fluid must be new. Heavy use of the brakes can
cause a vapor lock if the brake fluid is left in the system too
long . Thi s can seriously affect the efficiency of the brakes as
well as your safety . This could result in an accident.
0 Note
Brake fluid will damage the paint of your ve hicle .
~ For the sake of the environment
Because of the prob lem of proper disposal of brake fl uid as we ll as
the spec ia l too ls req uired and the necessary expe rtise, we recom ­
m en d that you have t he brake fl uid changed by your autho rized Audi
dea ler .•
Battery
General information
Under normal operat ing condit ions, the battery in your Aud i does not
nee d any m ain ten ance. Wi th high outs ide temper atures o r long d aily
dr ives we recommend that yo u have the elect rolyte level checked by .,_

-~_T_ i_ re _ s_ a_n _ d_ w_ h _e_ e_ ls _________________________________________________ _
Groove
means the space between two adjacent tread ribs.
Load rating (code)
means the maximum load that a tire is rated to carry for a given infla­
tion pressure. You may not find this information on all tires because
it is not required by law.
Maximum load rating
means the load rating fo r a tir e at the maximum permissible inflation
pressure for that tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure to which a tire may be
inflated. Also called "maximum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms) times the number of occupants seated
in the vehicle up to the total seating capacity of your vehicle.
Occupant distribution
means distr ibution of occupants in a vehicle .
Outer diameter
means the overall diameter of an inflated new tire.
Overall width
means the linear distance between the exteriors of the sidewalls of
an inflated tire, including elevations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber -coated paralle l cords.
Production options weight
means the combined weight of those installed regular production
options weigh ing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not previously considered in curb weight or
accessory weight, including heavy duty brakes, ride levelers, roof
rack, heavy duty battery, and special trim.
Radial ply tire
means a pneumatic tire in which the ply cords that extend to the
beads are laid at substantially 90 degrees to the centerline of the
tread .
Recommended inflation pressure
see=> page 307, "Cold tire inflation pressure".
Reinforced tire
means a tire design to operate at higher loads and at higher inflation
pressures than the corresponding standard tire. Reinforced t ires may
be identified as "XL ", "x l", "EXTRA LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a tire and tube assembly upon
wh ich the tire beads are seated .
Rim diameter
means nominal diameter of the bead seat . If you change your wheel
size, you w ill have to purchase new tires to match the new rim diam­
eter .
Rim size designation
means rim diameter and width.
Rim width
means nom inal distance between rim flanges.