fuel cap AUDI S8 2010 Owners Manual

Pedal area ... ........ ......... 192
S towing luggage .............. 193
Reporting Safety Defects ....... 195
Safety be lts ................... 197
General notes ................. 197
Why safety belts? . . . . . . . . . . . . . 198
Safety belts . . . . . . . . . . . . . . . . . . 201
Safe ty be lt pretensioners . . . . . . . 204
Airbag system ................ 206
Important th ings to know . . . . . . 206
F ront airbags ......... ........ 210
Mon ito ring the Advanced A irbag
Syst em ...................... 217
Knee airbags . . . . . . . . . . . . . . . . . . 2 22
Side airbags . . . . . . . . . . . . . . . . . . 225
Side curtain airbags . . . . . . . . . . . . 228
Child Safety ................... 231
Important things to know ...... 231
Child safety seats . . . . . . . . . . . . . 236
Ins ta lling a ch ild safety seat . . . . 24 1
LAT CH Lower anchorages and
t ethers for chi ldren . . . . . . . . . . . . 244
Add itiona l Informa tion 251
Vehicle operation ...... 252
Intelligent tec hno logy ........ 252
Notice about data recorded by
v e hicl e contro l modu les . . . . . . . . 252
Electronic Stab ili z ati on Program
(ESP) ........................ 252
Braking . . . . . . . . . . . . . . . . . . . . . . 254
Servotronic ® -advanced power
steer ing system ............ ... 257
Dr iving with your quattro® ...... 257
Energy management . . . . . . . . . . . 258
Controls and equip­
ment Safety first
Driving and environment
..... 261
The first 1,000 miles (1,500 km)
and afterwards . . . . . . . . . . . . . . . 261
Catalytic converter . . . . . . . . . . . . 262
Avoid damaging the veh icle 263
Dr ivi ng th rough wat er on roads . 263
Operate your veh icle economica lly
and m inimi ze po llution . . . . . . . . 263
Trailer towing ................ 266
Dr iving wi th a traile r . . . . . . . . . . . 266
T railer tow ing tips . . . . . . . . . . . . . 268
Vehicle care .............. 270
Clea nin g and pro tect ion ...... 270
General information . . . . . . . . . . . 270
Care of exterior . . . . . . . . . . . . . . . 270
Care of interior . . . . . . . . . . . . . . . 277
Fuel supply and filling your fuel
tank .......................... 283
Gasol ine . . . . . . . . . . . . . . . . . . . . . 283
F u el tank . . . . . . . . . . . . . . . . . . . . . 284
Checking and filling . . . . . . . . . . . 288
Eng ine hood . . . . . . . . . . . . . . . . . . 288
Eng ine compartment . . . . . . . . . . 290
Engine oil ............... ..... 291
Engine cooling system . . . . . . . . . 296
Brake fluid . . . . . . . . . . . . . . . . . . . 299
Bat tery . . . . . . . . . . . . . . . . . . . . . . 300
W indshield/head light washer
containe r . . . . . . . . . . . . . . . . . . . . 305
Tires and wheels .............. 306
Ti res 306
T ir e pressure monitor ing system 326
Table of contents
Do-it-yourself service
What do I do now? .......... .
Trunk escape handle ......... .
Emergency wa rning tria ngle ... .
Jack, tools and spare wheel ... .
Changing a wheel ........... . .
Fuses and bulbs ............. .
Fuses ...................... .
Bulbs ...................... .
Emergency situations ....... .
General ..................... .
Starting by pushing or towing ..
S tarting with jumper cables ... .
Use of j umper cables ......... .
Emergency towing with
commercial tow truck ........ .
Lifting vehicle ............... .
Technical data
General information
Explanat ion of technical data .. .
Vehicle identification ......... .
We ig hts ... ....... ....... ... .
Dimensions ................. .
Data .......... ......... ...... .
350 hp, 8-cylind er engine, with all
whee l dr ive ................. .
Consumer Information ...... .
Warranty coverages .......... .
Ope rating your vehicle outs ide the
U.S.A. or Canada ............. .
Aud i Se rvice Repair Man uals and
Literature ................... . 332
332
332
332
333
335
342
342
346
348
348
348
3
4 8
349
350
353
356
356
356
356
357
357
360
360
361
361
361
361
Vehicle operation Vehicle care Do-it-yourself service Technical data

Instruments and warning/indicator lights
For more information::::;, page 328 . •
Malfunction Indicator Lamp (MIL) >
The Ma lfunction Indicator Lamp (MIL) is part of the On-Board D iag­
nostic (OBD II) system . T he symbol lights up when the ignition is
turned on and will turn off after the engine has started and has
sett led at a constan t idle speed. Th is indicates that the MIL is working
properly .
The warning light illuminates when there is a malfunction in the
engine electron ic system. Contact your authorized Audi dealer and
have the malfunction corrected .
An improperly closed fuel filler cap may also cause the MIL light to
illuminate::::;,
page 285.
For more information ::::;, page 25. •
Safety belts~
This warning/indicator light reminds you to put on your
safety belt.
Th e 4,.. warning/ind icator light ill uminates when the igni tion is
switched on to remind the driver and any front passenger to put on
the safety belt. Additionally , an acoustic warning (gong) will a lso
sound .
For more Information ::::;,
page 197, "Safety belt warning light~"-•
Adaptive Air Suspension --1""::)
The warning/indicator light .... illuminates, when the jacking mode
has been activated::::;, page 179. This warn ing/i ndicator light has the
following functions: •
It illuminates for a few seconds after the ignition is turned on as
function check and then goes out.
• If the warning/ind icator light illuminates steadi ly, there is a
system fault in the Adaptive A ir Suspens ion. A system fault can result
in limited ride comfort and
low ground clearance. The fault should be
corrected as soon as possible by an authorized Audi dealer.
• If the warning/indicator light flashes, you should not drive the
vehicle . The flashing wa rning/ind icator light points to an extreme
H igh level. A very
pronounced lifting of the veh icle (extreme High
level) can resu lt, for examp le, when a heavy load is removed from the
vehicle . As soon as the level has returned to normal, the
warning/indicator light stops flashing, and you can drive away.
• If the warning/ind icator light flashes in conjunction with the~
wa rning/indicator light, you shou ld not drive off immediate ly in o rder
to prevent damage to the underbody . The two warning/indicator
lights flashing together points to an extreme Low level. A very
pronounced lowering of the veh icle (extreme Low level) can result,
for examp le, from a heavy load. As soon as the level has returned to
normal, the warning/indicator lights stop flash ing, and you can drive
away .
0 Note
If the warning/ind icator light flashes in conjunction with the~
warning/ind icator light, you should not drive the vehicle because low ­
lying vehicle parts can bottom out as you drive over uneven ground
and be damaged as a result .•
Adaptive Air Suspension~
The~ symbol illuminates fo r a few seconds after you have switched
on the ignition to indicate
reduced ground clearance when the
dynamic mode is activated and when the ignition is switched on with
a vehicle which was parked in dynamic mode::::;,
page 177, "Chassis
Controls". On vehicles which are equipped with the
sport suspension _,.,

Driver information display
The current speed appears on the display. The speed is displayed in 1 mph (US model) or 1 km/h (Canadian model) increments .
You can sw itch the display from miles to kilometers and vice versa via
the MMI. •
Open door or trunk lid warning
The pictogram alerts you when doors or the rear lid have
been left open.
Fig. 12 Display: open
door or rear lid
warning
With the ignition switched on, the open door or rear lid warning illu­
minates when at least
one door or the hood or the trunk lid is not
closed. The symbol also shows you
which door(s) or lid is not closed.
In the illustration ::::> fig. 12 it is the driver's door, the left rear door
and the rear lid. As soon as all the doors, the hood, the rear lid and
the fuel filler cap are properly closed, the door and rear lid wa rning
turns off and the Driver Information System functions selected are
displayed again. •
Defective light bulb warning
The defective light bulb warning tells you when a vehicle
light bulb has become defective .
Fig. 13 Display: defec­
tive light bulb warning
The defective light bulb warning monitors the function of the light
bulbs. If a defective light bulb is detected, or if a lig ht bu lb has
burned out, a yellow symbol appears as well as a pictogram in which
the defective light bulb is shown ::::> fig . 13 In the case of certa in bulb
failures (e .g . failure of the rear fog lamp), an addit ional symbol is
displayed to the left or right of the pictogram of the vehicle.
Defective brake Light
(USA models)/ (Canada models)
If the symbol illuminates , a brake light has failed . The burned out
light is shown in the pictogram.
Defective bulb
If this symbo l illuminates, a turn signal (front or rear), a headlight,
the backup light, a fog light or a rear fog light has fai led. The burned
out light is shown in the pictogram.
& WARNING
• Light bulbs are pressurized and could explode while they are
being changed causing serious personal injury . .,_

Driver information display
If the light illuminates, the electronic speed limiter may also be
malfunctioning. For more information~
page 26, "Electron ic speed
limiter".
An improperly closed fuel filler cap may also cause the MIL light to
illuminate ~
page 285. •
On-Board Diagnostics
Fig. 15 Location of
Data Link Connector
(OLC)
On-Board Diagnostics monitors the components of your emission
control system. Each mon itored component in your engine system
has been assigned a code. In case of a malfunction, the component
will be identified and the fault stored as a code in the control module
memory.
The MIL light may also illum inate if there is a leak i n the on-board fuel
vapor recovery system.
If the light illuminates after a refuelling, stop
the vehicle and make sure the fuel filler cap is properly closed
~page 285.
In order to make an accurate diagnosis, the stored data can only be
displayed using special d iagnostic equipment (generic scan too l for
OBD).
In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLC). The DLC is located to the right of
the hood release~ fig. 15. Your authorized
Audi dealer or a qualified service station can inter­
pret the code and perform the necessary repair.•
Electronic speed limiter
Your vehicle may be factory equipp ed w ith tires that are rated for a
maximum speed of 130 mph (210 km/h) . This is less than the
maximum speed of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operated at excessive
speeds, your vehicle a lso has an electronic speed limiter. The elec­
tronic speed limiter prevents your vehicle from going faster than the
tire speed rating . For more information ~
page 318.
If the eng ine control unit receives faulty vehicle road speed signals ,
the Malfunction Indicator Lamp (MIL) will illuminate. If this
occurs, contact the nearest a uthorized Aud i dealer for assistance.
& WARNING
Always observe the posted speed limits and adjust your speed to
suit prevailing road , traffic and weather conditions. Never drive
your vehicle faster than the maximum speed rating of the tires
i nstalled. •
Auto Check Control
Introduction
The Auto-Check control monitors the funct io n of certain vehicle
features and components . It simply makes sure these features and
components are working properly. The Auto-Check control works as
long as the ignition is on, as well as whenever the vehicle is driven.
If a component is malfunctioning or if the need for an urgent repair
has been detected, this w ill appear in the instrument cluster display . .,,_

Seats and storage Loading the roof rack
Always dis tribute loads evenly . Make sure anything on
the roof rack is securely tied do wn.
- Always distribute the loads on the roof rack evenly .
- Always attach items to t he roof rac k securely before you
drive
off .
The maximum permissible roof weight is 220 lb (100 kg ). The roof
we igh t is made up of the weight of the roof rack system and the
we ight of the object be ing transported.
When using a roof rack system which has a lower load ca rrying
capac ity, you must not use up the total maxim um permissible load
carrying capacity specified above . Instead, you shou ld load the roof
ra ck system only to the maximum capacity specified by the manufac­
turer of the roof rack system.
& WARNING
Weak, damaged or improper straps used to secure items to the
roof rack can fail during hard braking or in a collision and cause
seriou s personal injury.
• Make sure the roof rack is installed ex actly as specified above
~ page 93 .
• Always use suitable mounting straps for se curing items to the
roof rack to help prevent items from shifting or flying forward.
• Items on the roof rack must always be se curely mounted.
• The use of a roof rack can negatively affect the way a vehicle
handles . Ca rgo that is large , heavy, bulky , long o r flat will ha ve a
greater negative influence on the vehicle' s aerodyn amics, center
of gra vity and ove rall handling. Alw ays drive slowly, a void sudden
braking and maneuvers when tran sporting cargo on th e roof of
your veh icle.
& WARNING (contin u ed )
• Never e xceed the maximum permi ssible load carrying capacity
of the roof of your vehicle, the permi ssible a xle weights and the
permissible total weight of your vehicle~
page 3 5 7, "Weights".
• Alway s drive slowly, avoid sudd en braking and maneuv ers
when transporting cargo on the roof of your vehicle.
'£> For the sake of the environment
Sometimes it may be easier to leave a roof rack installed even tho ugh
you a re not using it. Due to the inc reased air resistance your veh icle
w ill unnecessarily use more fuel. Remove the roof rack if you are not
going to use i t. •
Cupholder
Cupholder in center console
The cupholder is located under a cover.
Fi g. 99 Cente r
c on sole: ( uph old er
- To o pen the cu pholder, p ress the forward edge o f the
cover.
Two beverages can be carried in the cupholde r.

Fuel supply and filling your fuel tank
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 fo r
winter or summer driving. During seasonal change-over, we suggest
that you fill up at busy gas stat ions where the seasonal adjustment is
more likely to be made in time.
0 Note
• Methano l fuels which do not meet these requirements may cause
corrosion and damage to plastic and rubber components in the fue l
system .
• Do not use fuels that fail to meet the specified criteria in this
chapter .
• If you are unab le to determine whether or not a particu lar fuel
blend meets the spec ifications, ask your serv ice 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 Aud i and are not covered under the New Vehicle or the Em is­
sion Control System Warranties.
• If you experience a loss of fuel economy or driveab ility and perfor­
mance 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 gaso line g rades contain
substances that can cause deposits to collect on v ital engine parts,
such as fuel injectors and intake valves. A lthough most gasoline
brands include additives to keep eng ine 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 officia l
webs ite (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit
build-ups can rob your engine of peak performance.
0 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 287.
You can find the fue l tank capacity of your vehicle in Technical Data
~page 360.
The label on the inside of the fuel filler flap tells you the correct fuel
for your ve hicle. For more information about fuel specifications, see
~page 283.
Your vehicle fuel tank has an on board refuel ling vapor recovery
system. This feature helps to prevent fuel vapors from escaping from
the tank and polluting the environment wh ile you refuel your veh icle . ..,_

In order to fill the tank properly while protecting the environment,
please follow this refueling procedure carefully.
& WARNING
Under normal operating conditions, never carry additional fuel
containers in your car. Gas canisters and other containers used to
transport fuel can be dangerous. Such containers, full or empty,
may leak and could cause a fire in a collision. If you must transport
fuel to use for your lawn mower, snow blower, etc., be very careful
and always observe local and state laws regarding the use, trans­
portation and storage of such fuel containers. Make certain the
container meets industry standards (ANSI /ASTM F852 -86).
0 Note
Never drive your vehicle until the fuel tank is completely empty . The
irregular supply of fuel can cause misfiring. Gasoline could enter the
exhaust system and damage the catalytic converter. •
Refuelling
The fuel filler flap is unlocked from a button in the
driver's door.
Fig . 235 Driver's
door: Unlock ing fuel
filler flap
Vehicle OP-eration
Fuel supply and filling your fuel tank
Fig. 236 Fuel cap
hooked on the opened
f uel filler flap
When adding fuel , the ignition and any cellular phones in the
vehicle must be switched
off.
Taking the fuel cap off
- To open the fuel filler flap, press the button~ fig. 235.
- Unscrew fuel filler cap counter-clockwise and hang it on
the fuel filler flap~ fig . 236.
Refuelling procedure
- Insert the fue l 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 avo id fuel spi lling 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 25 to come on. ._.
Vehicle care Do-it-yourselt service iTechnical data

Fuel supply and filling your fuel tank
in. WARNING
Improper refu eling or handling of fuel can cause fire , explosion
and sev ere burns .
• Fuel is highly flammable and can cause seve re burns and other
injuries .
• Failure to shut the engine off while refueling and /or to inse rt
the pump nozzle fully into the fuel fill er n eck could cau se fuel to
spray out of filler neck or to overflow. Fuel sp ray and overflowing
fue l can cau se a fire.
• Never u se a cellula r telephone while refueling. The electromag ­
netic radiation can cau se spark s that can ign ite fuel vapor s and
cause a fire.
• Never get back into your vehicle while refue ling . If in ex cep­
tional circumstances you must get back in your veh icle while refu ­
eling , make certain that you clo se th e 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.
• N ever smoke or have an open flame anywhere in or near your
vehicle when refueling or filling a portable fuel containe r.
• For your safety, we strongly recommend that you do not travel
with a portable fuel container in your vehicle. The containe r, full
or empty may leak and could cau se a fire, especially in a crash .
• If, under except ional circumstances , you must t ranspo rt a
portable fuel container, please ob serve 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 bu ild up while filling and
can ignite fuel vapors causing a fire .
- Alway s place a portable fuel container on the ground before
fill ing.
- Alway s keep the filler nozzle completely inside the portable
container before and during fill ing.
& WARNING (c on tinued )
-If filling a portable container made of metal , the filler nozzle
must alway s be in contact with the container. This will help
prevent static electricity from dis charging and cause a fire .
- Never spill fuel inside the vehicle or luggage compartment .
Fuel vapor s 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 F852-86).
0 Note
If any fuel has spilled onto the ca r, it should be remove d immed iate ly
t o prevent damage to t he pa int.
For the sake of the environment
As soo n as t he correct ly operated nozz le switches off automatically
for the first time, the tank is full. Do not try to add more fue l because
fue l may spill out . In addition, the expansion s pace in the fuel tank
w ill b e filled -causing the fue l to overflow when it becomes warm an d
poll ute the e nvironment .
(I] Tips
• Runn ing your e ngine while ref uellin g may cause vapo rs to escape
or even cause fuel to spill out of the tank . This wou ld then shut off the
fue l nozzle before the tank is f ull.
• Do not refuel your vehicle with the ignition turned on. The fuel
gauge may o therwise not ind icate the correc t fu el leve l after
refuell ing .•