2012 AUDI R8 SPYDER engine

164 Fuel supply and filling your fuel tank
Fuel supply and filling
your fuel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environ­
ment clean and prevents engine damage .
Fuel recommendation
The fuel recommended for your vehicle is un­
lead ed premium
grade gasoline . See also
¢ page 217, Data. Audi recommends using
TOP TIER Detergent Gasoline with a minimum
octane rating of 91 AK I (95 RON). For more
information on TOP TI ER Detergent Gasoline,
p lease go to the officia l website (www.toptier­
gas.com).
The recommended gasoline octane rating for
your engine can also be found on a label locat­
ed on the inside of the fuel filler flap. This rat­
ing may be specified as AKI or RON.
Your veh icle may also be operated using un­
l eaded regular gasoline with a minimum oc­
tane rating of 87 AKI/91 RON. However, using
87 AKI/91 RON octane fuel wi ll slightly re ­
duce engine performance.
Use unleaded gasoline only. Unleaded gaso­
line is available throughout the USA, Canada ,
and in most European countries . We recom­
mend that you do not take your vehicle to
areas or countries where unleaded gasoline
may not be available.
F or more information on refueling your vehi­
cle, see
¢ page 165.
Octane rating
Octane rating ind icates a gasoline's ability to
resist engine damaging "knock" caused by
premature ign ition and detonation. Therefore,
buying the correct grade of gasoline is very
important to help prevent possible engine
damage and a loss of engine performance.
Gasoline most commonly used in the United
States and Canada has the following octane r
atings that can usually be found on the fi ller
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 = Motor Octane Number .
(D Note
-Do not use any fuel w ith 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 severely damage
your vehicle's catalytic converter and its
ability to control exhaust emissions.
Blended gasoline
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You may use unleaded gasoline blended with
alcohol or MTBE (commonly referred to as
oxygenates) if the blended mixture meets the
following criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti -knoc k index must be 87 A KI or higher.
- Blend must contain no more than 3% meth-
anol.
- Blend must contain more than 2% co-sol-
vents .
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. ll-

-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 driving.
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 .
(D 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 fue ls that fail to meet the
specified criter ia in this chapter.
- If you are unable to determine whether
or not a particular fue l blend meets the
specifications, ask your service station or
its fuel supp lier.
- 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 responsibility 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.
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 supply and filling your fuel tank 165
fuel systems clean, they are not equally effec ­
tive .
A udi recommends using TOP TIER Detergent
Gasoline. For more info rmation on TOP TIER
Detergent Gasoline, please go to the official
website (www.toptiergas.com).
After an extended period of using inadeq uate
fuels, built-up carbon deposits can rob yo ur
engine of peak performance.
Q) Note
Damage or malf unct ion due to poor fue l
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
side panel behind the fuel fille r flap.
If the unlocking system should fail, you can
still open the flap manually -for detailed in ­
structions see
¢ page 167.
You can find the fuel tank capacity of your ve­ hicle in
Technical Data ¢ page 217.
The label on the inside of the fuel fi ller flap
tells you the correct fue l for your vehicle. For
more information about fuel specifications,
see
¢ page 164.
Your vehicle fue l tank has an on -board refue l­
ing 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 while protecting the environment,
please fo llow this refueling procedure careful­
ly.
_&. WARNING
Under normal operating conditions, never
carry additional fuel containers in your car.
Gas canisters and other containers used to
transport f uel can be dangero us. Such con­
tainers, full or empty, may leak and could
cause a fire in a collision. If you must
•
•

166 Fuel suppl y and filli ng your fuel t ank
transport fue l to use for your lawn mower,
snow blower, etc., be very careful and al­
ways observe local and state laws regard­
ing the use, transportat ion and storage of
such fuel containers. Make certain the con­
tainer meets industry standards (ANSI/
AS TM F852 -86).
(D Note
Never drive your vehicle until the fuel tank
is completely dry. The irregular supply of
fuel can cause misfir ing. Gasoline cou ld
e nte r into the exhaust system and damage
the cata lytic conve rter.
Refueling
Fig. 133 D river 's doo r: Unlocki ng fuel filler flap
Fig. 134 Fuel cap hooked on the opened fuel filler flap
When adding fuel, the ignition and any cellu­
lar phones in the vehicle must be sw itched
off .
Tak ing th e fuel cap off
• To open the fuel filler flap, press the button
9fig. 133.
• Unscrew fuel filler cap counter-clockwise
and hang it on the fuel filler flap ¢
fig. 134 .
Refueling procedure
• Insert the f uel nozzle from the gasoline
pump into the fuel fi ller neck as far as it wi ll
go .
• Select a med ium refueling rate so that the
nozzle switches off automatically when the
tank is full.
Putting th e fu el cap bac k on
• After fi lling your tank, twist the fuel filler
cap clockwise until you hear a definite click.
• Close the fue l filler flap.
T o avoid fuel spilling or evaporating from the
fuel tank always close fuel filler cap properly and completely. An improperly closed fuel fi ll­
er cap may also cause the MIL lamp¢
page 22
to come on.
A WARNING
Improper refue ling or handling of fuel can
cause fire, explosion and severe burns.
- Fuel is highly flammable and can cause
severe burns and other injuries.
- Fai lure to shut the engine off while refu­
eling and/or to insert the pump nozzle
fully into the fuel filler neck could cause
fuel to spray out of filler neck or to ove r­
flow. F ue l spray and overflowing fuel can
cause a fire.
- Never use a ce llular telephone while re­
fue ling. The electromagnet ic rad iat io n
can cause spa rks that can igni te fuel va­
pors and cause a fire.
- Never get back into your vehicle whi le re­
fue ling.
If in exceptio nal circumstances
you must get back in your vehicle while
ref ueling, 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
re leased d uring refueling .
- Never smoke or have an open f lame any­
where in o r near your veh icle when refu­
eling or filling a portable fue l conta iner.

-For your safety, we strongly recommend
that you do not travel with a portable
fuel container in your vehicle. The con­
tainer, 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 compart­
ment, or on the trunk) . Static electrici­
t y can build up while filling and can ig­
nite fuel vapors causing a fire .
- Always place a portable fuel container
on the ground before filling .
- Always keep the filler nozzle complete­
ly 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 dis­
charging and cause a fire.
- Never spill fuel inside the vehicle or
luggage compartment. Fuel vapors are
highly flammable.
- Always observe local and state/provin­
cial laws regarding the use, storage
and transportation of fuel containers
- Make certain the fuel container meets
industry standards (ANSI/ ASTM
F852-86).
(D Note
I f any fuel has spilled onto the car, it
should be removed immediately to prevent
damage to the paint.
@ 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
Fuel supply and filling your fuel tank 167
overflow when it becomes warm and pol­
lute the environment.
a) Tips
- Running your engine while refueling may
cause vapors to escape or even 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 igni­
tion switched on. The fuel gauge may
otherwise not indicate the correct fuel
level after refueling .
Unlocking the fuel filler flap
by hand
You can open the fuel filler flap by hand if the
power locking sy stem should fail .
Fig. 135 En gin e compar tment: loo sening the fue l fill er
fl ap cab le
Fig. 136 Engine compar tment: re lea sing the fuel fille r
flap using the emer gen cy re le ase
You can release the fuel filler flap using a red
emergency release loop .
It is located in the
right side of the engine compartment.
.. Open the engine compartment lid.
.. Loosen the fuel filler flap cable from its
mount @ on the crossmember
~ fig. 135 . liJJ,,

168 Fuel supply and filling your fuel tank
• Pull the red loop in the direction of the ar­
row until the fuel filler flap opens
¢fig. 136 .
• Once the fue l filler f lap is open, secure the
cable on the crossmember again.
• Close the engine compa rtment lid
¢ page 170 .

Checking and filling Engine compartment
lid
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 the different fluids, there is a risk
of injury, burns and accidents. To prevent per­
sonal injury always observe the following
WARNINGS. The engine compartment of any
vehicle is a ha zardous area!
¢ &. .
_&. WARNING
To help avoid injury, before you check any­
thing under the engine compartment lid:
- Switch off the engine.
- Remove the ignition key.
- Apply the parking brake.
- Move selector lever of R tronic to "N"
(Neutral); put manual transmission in
Neutral.
- Always let the engine cool down. Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the engine compartment lid if you
see or hear steam or coolant escaping
from the engine compartment. Wait un­
til no steam or coolant can be seen or heard before carefully opening the en­
gine compartment lid.
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­
ant 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 .
Checking and filling 169
-If work on the fuel system or the electri­
cal system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available .
- To avoid electrical shock and personal in ­
jury 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 of R tronic to "N"
(Neutral); put manual transmission in
Neutral.
- Always use extreme caution to prevent clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­
ing hot parts. Tie back hair before
starting, and wear no clothing that will
hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards¢& .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
•
•

1 7 0 Che cking and filling
(D Note
When adding fluids, a lways make sure that
they are poured into the proper container or filler opening, otherwise serious dam­
age to veh icle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regu larly . If
you see spots from oil or other vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer.
Releasing the engine compartment lid
The engine compartment lid is released from
inside the vehicle .
Fig. 137 Driver's side: releasing t he engine co mpart ­
ment lid
Requirement : The ignition must be switched
on.
... Make sure the rear spoiler is retracted
¢page 144 .
... Pull the button @. The eng ine compart­
ment lid opens slightly .
... Open the engine compartment lid
c> ,& .
A WARNING
-
Hot engine coo lant can burn you . To re­
duce the risk of being bu rned, never open
the engine compartment lid if yo u see or
hear steam or coolant escaping from the
eng ine compartment. Wait until no steam
or coolant can be seen or heard before
carefully opening the engine compartment
lid.
(D Note
To prevent damage to the vehicle, on ly
open the engine compartment lid when
the convert ible top storage bay lid is
closed.
(D Tips
An emergency re lease can be used if the
engine compartment lid cannot be re­
leased with the button
® ¢ page 171.
Closing the engine compartment lid
... Make sure that the rear spoiler is retracted
Qpage 144.
.,. Pull the eng ine compartment lid down unti l
the pressure from the struts is reduced .
... Press the engine compartment lid closed
Q&. .
A WARNING
A engine compartment lid that is not com­
plete ly latched could fly up and b lock your
view wh ile driving.
- When you close the engine compartment
lid, check it to make sure the safety catch
has properly engaged. The engine com­
partment lid should be flush with the
surrounding vehicle body parts.
- If you notice while driving that the en­
gine compartment lid is not secured
properly, stop at once and close it.

Engine compartment lid emergency
release
The emergency release loop is located under
the right trim panel near the front passenger
seat.
F ig . 138 Front pas se n ge r footwe ll: emer gen cy re lease
l oo p
Engine compartment
Checkin g and fillin g 171
.. Make su re the rear spoiler is retracted
¢ page 144 .
.. Pull the loop forward to release the engine
compartment lid . The engine compartment
lid opens sligh tly.
.. Open the engine compartment lid¢.&.
in
Releasing the engine compartment lid on
page 170.
(D Note
To prevent damage to the vehicle, only
open the eng ine compartment lid when
the convertible top storage bay lid is
closed .
Th es e ar e th e most important it ems that you can ch eck.
Fig. 139 Ty pical layout for containers , en gin e oil dipst ick and eng ine o il filler cap
(D Power steering fluid reservoir
(@) ... .. .... .... ... ...... .
@ Eng ine oi l filler cap ('l=r.) .. ...
® Engin e oi l dipstick
146
174
174
A WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢.&. in Working in the engine
compartment on page 169 .
-
{!) Tips
The coolant expansion tank is located un­
der the convertible top storage bay lid
¢ page 177.