Page 169 of 244

Fuel supply and filling
your f uel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environ
ment clean and prevents engine damage.
Fuel recommendation
The fuel recommended for you r vehicle is un
leaded premium
g rade gasolin e. See also
¢ page 225, Data . Audi recommends usi ng
TO P TI ER Deterge nt Gaso line wi th a minim um
oc ta ne ra ti ng of 9 1 AK I (9 5 RON). For more
in fo rmation on TO P TI ER De tergent Gaso line,
p lease go to the official website
(www .toptiergas .com) .
The re commended g asoline octane r ating for
your engine can a lso be fo und o n a label loca t
e d on the ins ide of the fuel filler flap . This rat
ing may be specif ied as A KI or RO N.
Your veh icle m ay also be oper ated using un
l e aded regular gasoline with a minimum oc
tane rating of 87 AKI/91 RON . However, using
87 AKI/9 1 RO N octa ne fue l w ill sli ghtly re
d uce eng ine perfo rmance .
Use unleaded gasoline only. Unleaded gaso
line is available th rougho ut the USA, Canada,
a nd in most E uropean cou ntries . We recom
mend that you do not ta ke yo ur vehicle to
areas or count ries where unleaded gasoline
may not be ava ilable.
F or mo re informat io n on refue ling your ve hi
cle, see
¢ page 168.
Octane rating
Octane r ati ng in dicates a gaso line's abili ty to
r es ist engine damaging "knock" ca used by
p remature ign ition and detonation. Therefore,
buy ing the correct grade of gaso line is very
i mportant to help prevent possible engine
damage and a loss of engine performance.
Gasoline most common ly used in the Unite d
States and Canada has the followin g octane
Fuel supply and filling your fuel tank 167
ra tings that can usu a lly be found on the fi ller
p ump :
- Premium Gr ade: 9 1 -9 6 AKI
- Regular Grade : 87 -90 AKI
Explanation of the abbreviations:
AKI = Anti K nock In d ex = (R+M )/2 = (RO N
+M ON)/2
RON= Resear ch O ctane Num ber
MO N= Motor Octane Number.
(D Note
- Do not use a ny fue l w it h octane rat ings
lower than 87 A KI or 9 1 RO N othe rwise
e xpensive engi ne damage w ill occur.
- Do
not use leaded gasoli ne! The use of
leaded gasolin e w ill severely damage
yo ur vehicl e's cata lytic co nve rter and its
ability to control exh aust em iss ions.
Blended gasoline
U se of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You may use unleaded g asoline blende d with
a lcohol o r MTBE (commonly re fer red to as
oxygenates) if the blende d mixture meets the
fo llow ing criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
- Anti -kno ck index mus t be 87 A KI or higher.
- Blend must contain no mor e than 3% meth-
anol.
- Blend must co ntain more than 2% co-sol-
vents .
Blend of gasoline and ethanol (grain alcohol
or ethyl alcohol)
- Anti -knoc k index must be 87 A KI or higher.
- Blend must not conta in mo re tha n 10%
ethanol.
Blend of gasoline and MTBE
- Anti -knoc k index must be 87 AKI or higher . ll>-
•
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Page 170 of 244

168 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
especially well 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.
(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 fail to meet the
specified criteria in this chapter.
- If you are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service 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 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 lems 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 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
systems clean, they are 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
fuels, built-up carbon deposits can rob your
engine of peak performance.
(D Note
'
Damage or malfunction due to poor fuel
quality is not covered by the Audi 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 filler flap.
If the unlocking system should fail, you can
still open the flap manually -for detailed in
structions see¢
page 170.
You can find the fuel tank capacity of your ve
hicle in
Technical Data <=>page 225.
The label on the inside of the fuel filler flap
tells you the correct fuel for your vehicle. For
more information about fuel specifications,
see ¢
page 167.
Your vehicle fuel tank has an on-board refuel
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 follow 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
Page 171 of 244

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 dry. The irregular supply of
fue l can cause misfiring. Gasoline cou ld
enter into the exhaust system and damage
the catalytic converter .
Refueling
Fig. 130 Drive r's doo r: Unlock ing fuel filler flap
Fig. 131 Fu el cap hooked on the opened fuel filler flap
When adding fuel, the ignition and any cellu
lar phones in the vehicle must be switched
off .
Tak ing the fuel cap off
.. To open the fuel filler flap, press the button
9 fig . 130.
.. Unscrew fuel filler cap counter-clockwise
and hang it on the fuel filler flap ¢
fig. 131.
Fuel supply and filling your fuel tank 169
Refueling procedure
.. Insert the fuel nozzle from the gasoline
pump into the fuel filler neck as far as it will
go.
.. Select a medium refueling 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 avoid fuel spilling 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
fuel 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
fueling. The electromagnetic 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 fuel container. ..,.
Page 172 of 244

1 70 Fuel supply and filling your fuel tank
-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
ty 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.
-A lways 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 sp ill 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
If 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 overflow
when it becomes warm and pol
lute the environment.
(D 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 ig n i
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 system should fail.
Fig. 132 Engine compart ment: loosening the fue l filler
fla p cable
Fig. 133 Engine compart ment : releas ing t he fuel fill er
flap using the emergency release
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
Q fig. 132. ..,_
Page 173 of 244
~ Pull the red loop in the direct io n of the ar
row unti l the fuel filler flap opens
¢ fig.
133 .
~ Once the fuel fi ller flap is open, secure the
cable on the crossmember again.
~ Close the engine compa rtment lid
¢ page
174 .
Fuel supply and filling your fuel tank 171
•
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Page 174 of 244

17 2 Che cking and filling
Checking and filling
Engine compartment
Lid
Releasing the engine compartment lid
The engine compartment lid is released from
in side the vehicle.
Fi g. 1 34 Drive r's s id e: re le asi ng th e eng ine co mpart
ment lid
R equ irement : The ignition must be sw itched
on.
.,. Make sure the rear spoiler is retracted
<=> page 148 .
.,. Pull the button @. The e ngine compart
ment lid opens slightly .
.,. Ope n the engi ne compa rtme nt lid
c:> .&, .
.&_ WARNING
Hot engine coo lant can burn you. To re
duce the risk of bei ng bur ned,
neve r open
the engine compartment lid if yo u see or
hear steam or coolant escaping from the
eng ine compartment. Wa it until no steam
or coolant can be seen or heard before
carefu lly opening the engine compartment
lid .
CD Note
To prevent damage to the vehicle, only
ope n the engi ne compartment lid when
t he convertib le top storage bay lid is
closed .
(D Tips
An emergency re lease can be used i f th e
engine compartment lid cannot be re
l eased with the
button @r::::>page 172.
Engine compartment lid emergency
release
The emergency release loop is located under
the right trim panel near the front passenger
seat.
F ig . 1 35 Fro nt passenger footwe ll: em erge ncy release
l oop
.,. Make sure the rear spo iler is retracted
<=> page 148 .
.,. Pull the loop forwa rd to release the engine
compa rtme nt lid . The engine compar tment
lid o pens s lig htly .
.,. Open the eng ine comp artmen t lid
c:> .&, in
Releasing the engine compartment lid on
page 172 .
CD Note
To preven t dam age to the vehicle, only
open the en gine compartment lid when
the convert ible top stora ge bay lid is
closed.
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment!
Whenever you mu st perform any work in the
engine compartment, for example checking and filling the different fluids, there is a risk
of injury, burn s and accidents. To prevent
personal injury always observe the following
Ill-
Page 175 of 244

WARNINGS. The engine compartment of any
vehicle is a hazardous area!
c::> &.
A 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 S 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 coolant 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 .
- Do not remove the engine cover under
any circumstances. This increases the
risk of burns.
- 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:
Checking and filling 173
- 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 S 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
c::> .&. .
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.
@ Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam
age to vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other vehicle
IJI>
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Page 176 of 244

17 4 Che cking and filling
fluids, have your vehicle inspected by an
authorized Audi dealer.
Closing the engine compartment lid
.. Make sure that the rear spo iler is retracted
¢ page 148.
.. Pull the engine compa rtment lid dow n until
the p ress ure from the struts is reduced .
.. Pr ess the eng ine compartment lid closed
¢ &_ .
Eng ine compartment
A WARNING
-- W hen you close the engine compartment
lid, chec k it to make su re the safety catch
has prope rly engaged . The engine com
pa rtment lid s ho ul d be flush w ith the
sur ro un ding vehicle body parts .
- If you notice while driv ing t hat the en
g in e compartmen t lid is not secu red
p roperly, sto p at once and cl ose it .
These ore the most important items that you con check .
Fig . 136 Ty pica l layout fo r co ntai ners , e ngin e o il dipst ick and engin e o il fille r cap (man ual t ra n sm iss io n)
F ig . 1 37 Typ ica l layout fo r co ntain ers, e ngin e o il d ipstic k and e ng in e o il fill er cap (S t ro nic )
W ith manual transmission: @ Engine oil f iller cap(~) ,
(D Power steering f luid rese rvoir
@ E ngine o il d ipst ick ...... .... .
(@) ... .... .... ....... .. .. . 14 9
180
178 ....