2012 AUDI S8 open gas tank

216 Fuel supply and filling your fuel tank
-Blend must contain not more than 15%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
espec ially we ll for winter or summer driv ing.
During seasonal change-over, we suggest that
you fill up at busy gas stat ions where the sea­
sonal adjustment is more likely to be made in
time.
(CT) Note
- Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo­
nents in the fuel system .
- Do not use fuels that fai l to meet the
specified criteria in this chapter.
- If yo u are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service station or
its fuel sup plier.
- 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 respons ibility 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 prob­ l ems 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 manufac ­
turers is carbon deposit build- up caused by
the type of gasoline you use.
A lthough gasoline grades differ from one
manufacturer to another, they have certain
things in common. All gasoline g rades contain
substances that can cause deposits to co llect
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 a re not equally effec­
tive .
A udi recommends using TOP TIER Detergent
Gasoline. For more information on TOP TIER
Detergent Gasoline, please go to the official
website (www.toptiergas.com).
After an extended period of using inadequate
f uels, carbon deposit build-ups can rob yo ur
engine of peak performance.
(D Note
'
Damage or malf u nct ion due to poor fuel
quality is not covered by the Aud i New Ve­
hicle Limited Warranty.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear
s ide 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 218.
You can find the fuel tank capacity of your ve­
hicle in
Technical Data ¢ page 278.
The label on the inside of the fuel fi ller flap
tells you the correct fue l for your veh icle. For
more information about fuel specifications,
see
¢ page 215.
Your vehicle fuel tank has an on board refuel­ li ng vapor recovery system. This feature helps
to prevent fuel vapors from escaping from the
tank and polluting the environment while you refuel your vehicle . In order to fill the tank
properly wh ile protecting the environment,
please fo llow this refueling procedure careful­
ly.
.8, WARNING
Under normal operating cond itions, never
carry additional fuel containers in your car.
Gas canisters and other containers used to
transport fuel can be dangerous. Such con­
tainers, 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 al­
ways observe local and state laws regard­
ing the use, transportation and storage of
such fuel containers. Make certain the con­
tainer meets industry standards (ANSI/
ASTM F8S2 -86) .
@ 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
catalyt ic converter.
Refuelling
Fig. 169 Right rear vehicle s ide: Opening the fuel filler
flap
Fig. 170 Fuel filler flap with attached fuel cap
When activating the central locking, the fuel
f ill er flap is automatically un locked or locked.
Refuel the vehicle with the ignition switched
off.
Taking the fuel cap off
• Press the left side of the fuel filler flap to
open it¢
fig. 169 -arrow-.
• Unscrew fuel filler cap counter-clockwise
and hang it on the fuel filler flap
~ fig. 170 .
Fuel supply and filling your fuel tank 217
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 as far as it will go.
• Close the fuel filler flap.
To avoid fuel spill ing or evaporating from the
fuel tank always close fuel filler cap proper ly
and completely. An improperly closed fuel fill­
er cap may also cause the MIL lamp ¢
page 26
to come on.
A 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 refu­
eling and/or to insert the pump nozzle
fully into the fuel filler neck could cause
fue l to spray out of filler neck or to over­
flow. Fuel spray and overflowing fuel can
cause a fire.
- Never use a cellular telephone while re­
fue ling. The electromagnet ic radiation
can cause sparks that can ignite fuel va­
pors and cause a fire.
- Never get back into your vehicle while re­
fueling.
If in exceptional circumstances
you must get back in your vehicle while
refueling, make certain that you close
the door and touch metal to discharge static electricity before touching the fill­
er nozzle again. Static electricity can
cause sparks that can ignite fuel vapors
released during refueling.
- Never smoke or have an open flame any­
where in or near your vehicle when refu­
eling or filling a portable fue l container.
- For your safety, we strongly recommend
that you do not travel with a portable

Pressure malfunction ............ .. .. 17
Recommended oil check int ervals .. .. . 224
Sensor defective . . . . . . . . . . . . . . . . . . . . 20
Specification and viscosity .. .. .. .. .. . 222
Engine speed limitation ....... .. .. .. .. 20
Engine start system (indicator lights) .. .. 17
Entry assistance . . . . . . . . . . . . . . . . . . . . . 60
Environment Break-in period ........... .... .. .. . 194
Catalytic converter ................. 195
Disposing of your vehicle battery . ... . 234
Driving at high speeds ........ ... .. . 197
Driving to minimize pollution and noise 196
Fuel . .... .. .. .. ........... .. .. ... 217
Fuel economy ............ .... .. .. . 196
Leaks under your vehicle ........ .... 219
Letting the vehicle stand and warm up . 197
Proper disposal of drained brake fluid . 230
Proper disposal of drained engine coo l-
ant . .. .. .. .... ............. .. .. . 228
Proper disposal of drained engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 225, 226
Recycling used engine oil ............ 225
Unleaded fuel ............ .... .. ... 215
What should I do with an old battery? . 234
ESC (Electronic Stability Control)
Warning/indicator lights ............. 18
Event Data Recorder (EDR) ........ .... 187
Exhaust tail pipes .......... .... .. .. . 209
Expansion tank .............. .. .. .. . 227
Exterior lighting ................. ... . 43
Exterior mirrors Adjusting .. .. ........... .. .. .. .... 51
Dimming . .. ............. .... .. .... 51
Heating .. .. ... ... .... ... .. .. .. .. .. 51
Exterior temperature display ....... .. .. 23
F
Fa stening
Booster seats .................. .. . 174
Convertible child safety seats . . . . . . . . 172
Infant seats . ............... ... ... 171
Floor mats . .. ............. .... .. .. . 130
Folding table . . . . . . . . . . . . . . . . . . . . . . . . 65
Foot pedals . ... .............. ... ... 129
Index 289
For the sake of the environment
Gasoline fumes and the environment .. 217
Reduc ing engine noise by early upshift-
ing ......... .. .. .................. 10
Refueling . .. .. .. .... ............. 217
Saving fuel by early upshifting ........ 10
Four zone automatic climate control ... .. 76
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . 146
How they work . .. .. . .......... .... 151
Frontal collisions and the laws of physics 135
Front passenger seat adjustment . . . . . . . 60
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 54
Adjust ing . .. .. .. .. .. ........... .. 126
Child restraints in the front seat ..... . 144
Fuel Additives ........ .. ............... 215
Blended gasoline . ................. 215
Current consumption ........... .. .. . 24
Fuel filler flap emergency release ... .. 218
Fuel filler neck ... .. .............. . 216
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Gasoline .. .. .. .. .. ............... 215
Gasoline additives .... ......... .. .. 216
Low fuel level symbol . . . . . . . . . . . . . . . 21
Octane rating .. ... ...... ......... . 215
Recommendation ... . .. .... ........ 215
Refuelling ....... .. ............... 217
Reserve ... .. .. .. .... ............. . 11
Tank capac ity . . . . . . . . . . . . . . . . . 11,278
Fuses Assignment . .. .. .. ... ....... .... . 265
Replacing ....... .. ............... 265
G
Garage door opener (Homelink ®) .. ... . 121
Garment hooks . . . . . . . . . . . . . . . . . . . . . . 72
Gas discharge lamps ................. 269
Gauges Engine coolant temperature . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Speedometer .. .. .. . .. .... ........ . 25
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Trip odometer . .. .................. 25
General illustration . . . . . . . . . . . . . . . . . . . 8
Generator (warning/indicator lights) .... 16
G lossary of tire and loading terminology 236
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