2012 AUDI S8 tires

196 Driving and en vironm ent
Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads:
- The water must not be any higher than the
bottom of the vehicle body.
- Do not drive faster than wa lking speed.
A WARNING
After driving through water, mud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
the brakes first by braking carefully to re­
sto re the full braking effect.
@) Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys­
tem can be severely damaged by driving
through water.
- Check the depth of the water before dr iv­
i ng through it.
- Do not stop the vehicle, drive in reverse
or switch the engine off when driving
through water .
- Keep in mind that oncoming vehicles
may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely.
- Avoid dr iving through salt water because
i t can cause corrosion.
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex­
haust and noise levels.
Fuel economy, environmenta l impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- operating conditions
- technical limitations
If you anticipate what you need to do next and
drive economically, you can easily cut your
fuel consumpt ion by 10-15 percent . This sec­
t ion will give you some tips on how you can
help the env ironment and your pocketbook.
@ Tips
The consumption estimates as published
by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehi­
cle load and speed, road and weather con ­
ditions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac­
celerating.
.,. Avoid unnecessary accelerating and braking.
Vehicles use the most fuel when they are ac­
ce lerating. If you anticipate what is going to
happen next, you will need to brake less and,
thus, acce lerate less . Let the vehicle coast
whenever possible - for example when you see
that the next traffic light is red.

200 Trailer towing
Trail er load dis tr ibut ion
Be sure the load in the trai ler is held securely
in place to prevent it from shifting forward,
backward or sideways.
N eve r all ow a p assenger to rid e in a trailer
~ .&. in Driving instructions on page 201.
Engine cooling sy stem
Towing a tra iler makes the eng ine work hard­
er . It is important that the cooling system's
performance is up to the addit ional load .
Make sure that the cooling system has eno ugh
flu id.
Tir e pressure
When tow ing a tra iler, inflate the t ires of your
vehicle to the co ld tire pressure listed under
" Full load" on the label loca ted o n the dr iver's
side B-pillar (v is ible when the door is open).
I nflate trailer tires to tra iler and tire manufac­
turers' specifications.
Lights
Check to make sure both veh icle and trailer
l ights are wor king p roperly.
Safe ty chain s
Be sure tra iler safety cha ins are properly con­
nected from the trailer to the hitch on the ve ­
h icle . Leave enough slack in the chains to per­
mit turning corners. When you install safety
cha ins, make sure they w ill not drag on the
road when yo u are driving.
The chains shou ld cross under the tra iler
tongue to prevent it from dropping in case of
separat ion from the hitch .
Adjusting the Audi drive select
Make sure the vehicle is on a level surface be­
for e
hitching up the tra iler and b efor e adjust ­
ing the tongue weight . The vehicle must be i n
auto or comfort driving mode and not raised
~ page 103, ~CD .
Make sure that the vehicle is lowered . In Info ­
tainment, select:
I CARI function button> Lo w­
e r
control button . If you must drive under poor road conditions,
you can raise the vehicle
afte r coupling the
trailer or
a fter adjust ing the tongue we ight
~ page 105.
(D Note
-Changes in temperature or load can af­
fect the height of the vehicle .
- Always select auto or comfort mode .
Otherwise, the tongue load specified for
your vehicle will no longer be applicable.
Driving instructions
Driving with a trailer always requires extra
core and consideration.
T o obtain the best possible hand ling of vehicle
and trailer, please note the fo llowing:
.. Do not tow a loaded t railer when you r ca r it­
self is not loaded .
.. Be especially carefu l when passing other ve ­
hicles .
.. Observe speed limits.
.. Do not drive at the maximum permissible
speed .
.. Always apply brakes early .
.. Monitor the temperature gauge .
Weight distribut ion
T owing a loaded trailer with an empty car re ­
s ul ts in a highly unstable distribution of
weight. If this cannot be avoided, drive at very
low speeds only to avoid the risk of losing
steering control.
A "balanced" rig is easier to operate and con­
trol. This means that the tow vehicle should
be loaded to the extent possible and permissi­
ble , while keep ing the trailer as light as possi­
ble under the ci rcumstances. Whenever poss i­
ble, transfer some cargo to the luggage com­
partment of the tow vehicle while obse rv ing
tong ue load requi rements and vehicle load ing
considerations .
Speed
The higher the speed, the more d ifficu lt it be­
comes for the driver to control the rig. Do not
1111>

204 Cleaning and protec tio n
Automatic car wash
The vehicle can be washed in almost any
modern automatic car wash .
The vehicle paint is so durable that the vehicle
can normally be washed without problems in
an automatic car wash. However, the effect on
the paint depends to a large extent on the de­
sign of the facility, the filte ring of the wash
water, the type of wash and care mater ial , etc.
I f the pa int has a dull appearance afte r going
through the car wash or is scratched, bring
this to the attention of the operator immedi­
ately. If necessary, use a different car wash.
Before going through a car wash, be sure to
take the usual precautions such as closing the
windows and power roof . Factory installed an­
tennas must not be removed.
I f you have installed additional accessor ies on
the vehicle - such as spoilers, roof rack, etc. -
it is best to ask the car wash operator if these
should be removed .
When driving through an automatic car wash,
fi rst se lect the N position and then switch the
engine off. If you switch the engine off when N is engaged, the transmission remains in N
for approximately 30 m inutes and then Pis
engaged.
Further information for automatic gearboxes
~ page 109.
A WARNING
Always read and heed all WARNINGS and
other information
r:::;, page 203.
- Fo ld the exterior mirrors - flat there is a
risk of damaging the exterior mirrors .
Power folding exterior m irrors must not
be folded in or out by hand. Use the pow­
er function!
- Compare the track of your vehicle with
the d istance between the guide rails of
the facility - there is a risk of damage to
the wheels and tires . - Compa
re the height and width of your
vehicle with the height and width of the t u nnel at the facility .
· Washing the vehicle by hand
A lot of water is needed when washing a vehi­
cle by hand.
.,. Before yo u start wash ing, make su re you
have read and understood the WARNINGS
r:::;, A in General information on page 203.
.,. First soak a ll dried dirt unt il it is soft , then
rinse it off.
.,. As you clean your vehicle, start with the
roof and work your way down to the bottom,
using a sponge, a sponge glove or a clean brush .
.,. Rinse the sponge or the sponge g love often,
flushing it clean eac h time.
.,. Use spec ial car shampoo only for very per­
sistent di rt.
.,. Rinse the car thoroughly w ith water.
.,. Use a chamois leather to gently w ipe the ex-
terior dry.
Use a separate sponge for cleaning the
whee ls , door si lls and other regions exposed
to road dirt. In this way, you will not scratch
the pa int with coarse particles imbedded in
the sponge the next time you wash the car.
A WARNING
- Do not clean the underside of the chas­
sis, fenders, wheel covers, or other hard
to reach parts without protect ing you r
hands and arms. You may cut yourself on
sha rp-edged metal parts .
- Always read and heed all WARNINGS and
other info rmation
c;, page 203.
(D Note
- Never try to remove dirt, mud or dust if
the surface of the veh icle is dry. Never
use a d ry cloth or sponge, s in ce this
co uld scratch your vehicle's paint or win -
-
dows. .,.

-Never w ash your ca r in bri ght sunlight.
Drops of water act as magnifying lenses
and may damage your paint.
- When yo u wash your car in the winter : if
you rinse your vehicle with a hose , be
careful not to aim the stream of water
direct ly at locks, or at door or hatch
openings -they can freeze shut.
- Never use sponges des igned to remove
i nsects, or any kitchen scouring sponges
or similar products . They can damage
you r paint finish .
- Never use a dry cloth or sponge to clean
the headlights . Only use wet cloths or
sponges to prevent scratches . It is best
to use soapy water.
- You should remove debris (such as in­
sects) from the headligh t lenses on a
regular basis , fo r example when refuel­
i ng yo ur vehicle. Never clean the he ad­
l ights w ith a dry clo th or sponge. Use a
wet cloth or sponge . It is best to use
soapy water.
@ For the sake of the environment
I n the interes t of the envi ronment, the ve­
hicle sho uld only be washed in specia l
wash bays.
Washing your vehicle with a power
washer
Cleaning the exter ior of your car with a high­
pressure power washer is safe as long as you observe a few simple rules.
~ Befo re using the power washe r, make sure
you have read and understood the WARN­
INGS
c> A in General information on
page 203 .
~ Always follow the operating instructions for
the power washer .
~ Make sure that the jet o n the spray hose
produces a "fan shaped spray ".
~ Do not hold the spray no zzle too close to
soft materia ls.
W hen clea ning the vehi cle w it h a powe r wash­
e r
always fo llow the operating instruc tions.
Cleaning and protec tion 205
This applies particu la rly to the operating
pre ssure and the spraying di stance. Keep a
distance from soft materia ls such as rubber
hoses or insulating material as we ll as sensors
and camera lenses.
Do not use a jet which sprays water in a direct
stream or one that has a rotating jet.
Water tempera ture sho uld no t exceed 140 ° F
(60 °().
A WARNING
N eve r wash t ires with a jet that sprays wa­
ter in a direct stream . T hi s could cause in ­
v isib le damage to the t ires and weaken
them, even i f the spray is from a re lative ly
long distance and for a sho rt time. Dam­
aged and weakened tires can fail and cause
accidents and personal i njury .
(D Note
To avoid damaging your vehicle, a lways
make sure that the re is suffic ient d istance
between the spray head and soft materials
li ke rubber hoses, plast ic pa rts and sound­
deaden ing ma ter ia ls as well as sensors
and camera lenses. Never a im th e sp ray
head at the same point for a long time .
This also applies to cleaning headlights
and painted bum pers. Remembe r: the
cl oser the nozzle is to the surface of the
mater ia l, the greater the stress on the ma­
terial.
Sensoren und Kameralinsen
- Entfernen S ie Schnee m it einem Handfeger
und Eis bevo rzugt mit einem losungsm ittel­
fre ien Enteisu ngsspray .
- Reinigen Sie die Sensoren (adaptive cruise
cont ro l*, Einparkhi lfe*) mit losungsm itte l­
fre iem Re inigungsmi tte l und einem weiche n
t ro ck enen Tuch .
- Befeuchten Sie die Kameralinse m it handel­
si.iblichem Glasrein ig ungsm ittel a uf Al ko­
holbasis und reinigen Sie die Linse mi t ei­
nem trockenen Tuch . Beim lane assist* wird
de r Bereich vor der Linse im Normalfall .,..
•
•

Tires and wheels
Tires
General notes
Tires may be the least appreciated and most
abused parts of a motor vehicle .
Tires may be the least appreciated and most
abused parts of a motor vehicle . T ires are,
however, one of the most important parts of a
vehicle, particularly considering the compara­
tively small patch of rubber on eac h tire that
assures that a ll- important contact between
you, you r vehicle and the road.
Maintaining the correct tire pressure, mak ing
sure that your vehicle and its tires do not have
to carry mo re weight than they can safely han­
d le, avoiding damage from road hazards and
r eg ularly inspec ting t ires for damage i nclud­
ing cuts, slashes irregu la r wear and ove rall
condition are the most important things that
you can do to he lp avoid sudden tire failure in­
cluding tread separat ion and blowouts.
Avoiding damage If you have to d rive over a curb or similar ob­
stacle, drive very slow ly and as close as possi ­
b le at a right angle to the curb.
A lways keep chemicals includ ing grease, o il ,
gasoline and brake fluid off the t ires .
I nspect the t ires regularly for damage (cuts,
cracks or b listers, etc.). Remove any fo reign
bod ies embedde d in the treads.
Storing tires Mark tires when you remove them to indicate
the direction of rotation . T his ensures you to
be ab le to mount them correctly when you re­
i nstall them .
When removed, the whee ls or t ires should be
sto red in a cool, d ry and preferably dark place .
Store tires in a vertical pos ition if they are not
mounted on rims, in a horizontal pos it ion if
they are mounted on rims .
Tires an d wheel s 235
New tires
New tir es have to be broken in ¢ & .
The tread depth of new t ires may vary, accord­
ing to the type a nd make of t ire and the tread
pa tte rn.
Hidden damage
Damage to tires and r ims is ofte n not readily
visible . If you notice unusual v ib rat io n or the
vehicle p ulls to one s ide, th is may ind icate
that one of the t ires has been damaged . T he
ti res m ust be chec ked immed iate ly by an au­
thorized Audi dea le r or q ua lified wor kshop .
Unidirectional tires
A un idirectional tire can be identified by ar­
rows on the s idewa ll, that po int in the direc­
tion the t ire is designed to rotate. You mus t
f ol low the specified di rection o f rotation . T his
is necessary so that these tires can develop
their optimum characteristics regarding grip, road noise, wear and hydrop laning resistance.
For more information ¢
page 264.
A WARNING
New tires or t ires that are o ld, worn or
damaged cannot provide maximum con­
trol and braking ability .
-
-New tires tend to be slippery and must
be broken in. To reduce the r isk of losing
control, a co llision and ser ious personal
in ju ries, d rive with special ca re fo r the
fi rst 350 m iles ( 560 km).
- Driving with worn or damaged tires can
lead to loss of control, sudden tire fail­
ure, including a blowout and sudden de­
fl ation, c ras hes and se riou s personal in­
juries . Have wo rn or damaged t ires re­
placed immediate ly.
- Ti res age even if they are not being used
and can fai l sudden ly, especially at hig h
spee ds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith special care and at low
speed.
•
•

236 Tires and wheels
-Never mount used tires on yo ur vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items which may be rep laced)
of automatic transmission, power steering, power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory -installed equip ­
ment (whether installed or not) .
Aspect ratio
means the ratio of the he ight to the w idth of
the tire in percent. Numbers of 55 or lower in­
dicate a low sidewall for improved steering re­
sponse and better overall handling on dry
pavement.
Bead
means the part of the tire that is made of
steel wires, wrapped o r reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a breakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire.
Cold tire inflation pressure
means the tire pressure recommended by the
vehicle manufacturer for a tire of a designated size that has not been driven for more than a
couple of miles (kilometers) at low speeds in
the three hour period before the tire pressure
is measured or adjusted. -
If you notice unusual vibration or if the
veh icle pulls to one side when driv ing, a l­
ways stop as soon as it is safe to do so and check the wheels and tires for dam­
age.
Curb weight
means the weight of a motor vehicle w ith
standard equipment including the maximum
capacity of fuel, oil, and coolant, air condi­
tioning and additional weight of optiona l
equipment.
Extra load tire
means a t ire design to operate at h igher loads
and at higher inflation pressures than the cor­
responding standard tire. Extra load tires may
be identified as "XL", "xl", "EXTRA LOAD", or
"R F" on the sidewall .
Gross Axle Weight Rating ( "GAWR ")
means the load-carrying capacity of a s ingle
axle system, measured at the tire-ground in­
terfaces .
Gross Vehicle Weight Rating ("GVWR")
means the maximum total loaded weight of
the vehicle.
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 inflation pressure. Yo u
may not find this information on all tires be­
cause it is not required by law.
Maximum load rating
means the load rating for a tire at the maxi­
mum permissib le 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 pressu re."
Normal occupant weight
means 150 lbs. (68 k ilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle .
Outer diameter means the overall diameter of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ­
ing e levations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber-coated para llel cords.
Production options weight
means the comb ined weight of those installed
regular production options weighing 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, r ide leve lers, roof rack,
heavy duty battery, and specia l trim .
Radial ply tire
means a pneumatic t ire in which the p ly cords
that extend to the beads are laid at substan­
tially 90 degrees to the centerline of the
tread.
Tires and wheels 237
Recommended inflation pressure
see~
page 236, Cold tire inflation pressure.
Reinforced tire
means a t ire design to operate at higher loads
and at higher inflation pressures than the cor­
responding standard tire. Reinforced tires
may be identified as "XL ", "x l", "E XTRA LOAD",
o r "R F" on the sidewall.
Rim
means a metal support for a tire or a t ire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal d iameter of the bead seat. If
you change your wheel s ize, you w ill have to
purchase new tires to match the new r im di­
ameter.
Rim size designation
means r im diameter and width.
Rim width
means nom inal distance between rim fla nges.
Sidewall
means that portion of a tire between the
tread and bead.
Speed rating (letter code)
means the speed at which a tire is designed to
be driven for extended periods of time. The
ratings range from 93 mph (150 km/h) to
186 mph (298 km/h)
~ page 247 . You may
not find this information on all tires because
it is not requ ired by law.
The speed rating letter code, where applica­
ble, is molded on the tire sidewall and indi­
cates the max imum pe rm issib le road speeds
~ .&. in Winter tires on page 251.
Tire pressure monitoring system*
means a system that detects when one or
more of a veh icle's tires are underinflated and
illuminates a low tire pressure warning tell­
tale.
•
•

238 Tires and wheels
Tread
means t hat port ion of a tire that comes into
con tact w it h t he road.
Tread separation
means pull ing away of the t read from the ti re
carcass .
Treadwear indicators (TWI)
means the projections within the pr inc ipal
grooves designed to give a v isua l ind ication of
the deg rees of wea r of the tread . See
~ page 245, Tread W ear Indicator (T WI) for
mo re info rmat io n on measu ring ti re wear.
Uniform Tire Quality Grading
is a tire information system developed by the
United States Nat io nal Highway Traffic Safety
Admi nistration (N HTSA) that is designed to
h e lp buye rs make relat ive compa risons among
tires. The UTQG is not a safety rating an d no t a
g ua ran tee t hat a tir e will las t fo r a presc ribed
nu mber of m iles (kilome ters) or perform in a
certain way. It s imply gives tire buye rs addi ­
tional informat ion to com bine with ot her con­
side rat ions, s uch as pr ice, brand loya lty and
dea ler recommendations. Under UTQG, t ires
are g raded by t he tire manufacturers in th ree
areas: treadwear, tract io n, and temperature
res ista nce. Th e UTQG i nfo rmation on the tires ,
mo lded into t he s idewalls.
U.S . DOT Tire Identification Number (TIN)
This is the t ire 's "serial number" It beg ins
with the lette rs "DOT" and indicates that the t
ir e mee ts a ll fede ra l standards. The nex t two
numbe rs o r letters in dicate the plant where it
was man ufactu red, and the last four numbers
represent the wee k and year of man ufact ure.
For example,
DOT . .. 2212 ...
me ans th at the tire w as produced in t he 22nd
wee k of 2012 . T he o the r num bers are m arket­
ing co des that may or may not be used by the
t ir e manufacturer . This information is used to
contact consume rs if a tire defect requires a
recall.
Vehicle capacity weight
means the ra ted ca rgo an d luggage lo ad plus
150 lbs. ( 68 kilo gr ams) times the vehicle's to ­
ta l seating ca pacity as listed on the la bel lo ­
cated on the driver's side B-pilla r.
Vehicle maximum load on the tire
me ans tha t load on an individu al tire tha t is
de termined by dis tributi ng to eac h axl e its
share of the maxim um loa ded vehicle weight
and dividing by two .
Vehicle normal load on the tire
means th at l oad o n an individua l tire tha t is
de termined by dis trib uti ng to eac h axle its
share o f the cur b weight , accessory weight,
and normal occ upant weig ht (distr ibuted in
accordance with tab le be low ~
page 238)
and dividing by two.
Occupant loading and distribution for veh icle normal lo ad fo r variou s designated seating
capacities
Designated seating capacity,
number of occupants
4
5
Vehicle normal load, number Occupant distribution in a nor-
of occupants _____ malty loaded vehicle
2 2 in front
3 2 in front, 1 i n bac k seat