2012 AUDI A5 COUPE Owners Manual

If the engine compartment is cleaned at any
time with grease removing solutions
1>, or if
you have the engine washed, the anti-corro­
sion treatment is almost always removed as
well. It is therefore essential to have a long­
lasting corrosion protection reapplied to all
surfaces , seams, joints and components in the
engine compartment .
.8, WARNING
Be aware: The engine compa rtment of any
motor vehicle is a potentially hazardous
area .
- Before working in the engine compart­
ment, be s ure to read the informat ion
~ page 237 .
-Before reaching into the front plenum
pane l, always remove the ignition key .
Otherwise, the windshield wiper system
cou ld unintentiona lly be switched on,
poss ibly causing personal injury from the
moving wiper linkage.
- Never reach into the area around or
touch the radiator fan. The auxiliary fan
is temperature controlled and can switch
on suddenly- even when the ign it ion is
off .
- Do not wash, wax or dry the engine w ith
the engine running . Moving or hot parts
could inju re you .
- Do not clean the underside of the chas­
sis, fenders, wheel covers, or other hard
to reach parts w ithout protecting your
hands and arms. You may cut yourse lf on
s harp-edged metal parts .
- Always read and heed all WARN INGS and
othe r information ~
page 221.
l) Use o nly the co rr ect clean in g s olu tio ns. Ne ve r use ga s­
o line or d ie sel fuel.
Cleaning and protec tion 23 1
•
•

232 Fuel supply and filling your fuel tank
Fuel supply and filling
your fuel tank
Gasoline
Fuel supply
Using the righ t fuel helps keep the environ­
ment cle an and preven ts engine dam age .
Fuel recommendation
The fuel recomme nded for you r vehicle is un­
lead ed premium
g rade gasoline . See a lso
¢ pag e 292, Data . Audi recommends usi ng
T OP TIER D eterge nt Gaso line wi th a mini mu m
octa ne ra tin g of 9 1 AKI (95 RON). For more
in fo rmation on TO P TI ER De tergent Gaso line,
p lease go to the officia l webs ite (www.toptier ­
gas.com).
Th e re commended g asoline oct ane r ating for
your engine can a lso be fo und on a label loca t­
e d on the ins ide of the fue l filler flap . This rat ­
ing may be specified as A KI or RO N.
Your veh icle m ay also be oper ated using un­
l ea ded regular g asoline with a min imum o c­
tane rating of 87 AKI/91 R ON. However, using
87 AKI/91 RON octa ne f ue l w ill slightly re ­
d uce eng ine perfo rmance.
Use unleaded gasoline only. Unleaded g aso­
line is availab le th rou gho ut the USA, Canada ,
and in most E uropean countries . We recom­
mend that you do not ta ke yo ur vehicle t o
areas or countries where unleaded gasoline
may not be ava ilable.
F or mo re in format io n on refue ling your ve hi­
cle, see
¢ page 233.
Octane rating
O cta ne r ating in dicates a gaso line's abili ty to
res ist engine damagin g "knoc k" ca used by
p remature ign ition and detonation. Therefore,
buy ing the correct grade of gaso line is very
important to help prevent possible engine
damage and a loss of engine performance.
Gasoline most commonly used in the Unite d
States a nd Canada has the following octane r
at ings t hat can usu a lly be found on the fi ller
pump:
- Pre mium G ra de: 91 -9 6 A KI
- Regular Grade : 87 -90 AKI
Explanation of the abbreviations:
AKI = Anti K nock Index= (R+M) /2 = (RO N
+ MON)/2
R ON= Resea rch Octane Numb er
MON = Motor Octane Num ber .
(D Note
-Do not use a ny f ue l w it h octane rat ings
lower tha n 87 A KI or 9 1 RO N othe rwise
expensiv e engine damage w ill occur.
- Do
not use leaded gasoline . The use of
lead ed gasoline w ill severely damage
yo ur v ehicl e's catalytic co nve rter a nd its
ability to co ntrol exha ust e mission s.
Blended gasoline
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You may use unleaded g asoline blende d with
alcohol o r MTBE (commonly re ferred to as
oxygenates) if the blende d mixture meets t he
f o 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% me th-
anol.
- Blend must contain more than 2% co-sol-
ve nts .
Blend of gasoline and ethanol (grain alcohol
or ethyl alcohol)
- Anti -knoc k index must be 87 AKI or higher .
- Blend must not conta in mo re than 10%
ethanol.
Blend of ga soline and MTBE
- Anti-knoc k index must be 87 AKI or high er. 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 233
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 power locking system should fail, you
can still open the flap manually -for deta iled
instruct ions see¢
page 235 .
You can find the fuel tank capacity of your ve­
hicle in
Technical Data ¢ page 292.
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 232.
Your vehicle fue l tank has an on -board refue l­
li ng vapor recovery system. This feature helps
to prevent fuel vapors from escaping from the
tank and pollut ing 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
•
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234 Fuel supply and filling your fuel tank
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, 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 empty. The irregular supply
of fuel can cause misfiring . Gasoline could
enter the exhaust system and damage the
catalyt ic converter.
Refuelling
Fig. 197 Rig ht rear vehicle s ide: Opening th e fuel filler
f lap
Fig . 198 Fu el filler fla p with attached fuel c ap
When activating the central locking, the fuel
fi ller flap is automatically un locked or locked.
Refuel the vehicle with the ignition turned
off.
Taking the fuel cap off
,.. Turn off the ignit io n.
,.. Press the left side of the fue l filler flap to
open it
.?) fig . 197-a rrow -.
,.. Unscrew fuel cap counter-clockw ise and
hang it on the fuel filler flap
~ fig. 198.
Refuelling procedure
,.. Insert the fu el nozzle from the gasoline
pump into the fuel filler neck as far as it will
go .
,.. Select a medium r efuelling rate so that the
no zzle switches off automatically when the
tank is full.
Putting the fuel cap back on
,.. After fi lling your tank, tw ist the fuel cap
clockwise as far as it will go .
,.. Close the fue l fill er flap.
T o avoid fuel spilling or evaporating from the
fuel tank always close fuel cap properly and
complete ly.
A WARNING
-
Improper refue ling or handling of fuel can
cause fire, explosion and severe burns.
- Fue l 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 electromagnet ic rad iat ion
can cause sparks that can ignite fuel va­
pors and cause a fire.
- Never get back into your vehicle white 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 e lectricity can
cause sparks that can ignite fuel vapors
released during refueling .
- Never smoke or have an open f lame any­
where in or near your veh icle when refu­
eling or filling a portab le fuel 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 co uld
cause a fire, especially in a crash.
- If, under exceptional circumstances, yo u
must transport a portable fuel container,
please observe the following:
- Never fi ll a po rtable fue l container
while it is anywhe re in or on the vehicle
(for examp le, in the luggage compar t­
ment, or on the tr unk). Static electric i­
ty can bui ld up while fi lling and can ig­
n ite fue l vapors causing a fire .
- Always p lace a portable fuel container
on the gro und before filling.
- Always keep the fi ller nozzle comp lete­
ly inside the po rtable conta iner before
and during filling.
- If filling a portable container made of
metal, the filler nozz le must always be
in contact with the container. Th is w ill
he lp prevent static electricity from dis­
charging and cause a fi re .
- Never sp ill fuel inside the vehicle or
luggage compartment. Fue l vapors are
h ighly f lammable .
- Always observe local and state/provin­
cial laws regard ing the use, storage
and tra nsporta tion of fuel co ntainers .
- Make certai n the fuel container meets
industry standards (ANSI/ ASTM
F 8 52 -86) .
(D Note
If any f uel has spilled onto t he car, it
should be removed immediate ly to prevent
damage to the paint.
~ For the sake of the environment
As soon as the correctly operated nozzle sw itches off automatically fo r the fi rst
time, the tank is full. Do not try to add more fue l because fue l may spill out . In
add it io n, th e expans io n sp ace in the fuel
t ank will be fi lled -cau sin g the fue l to
over flow whe n it be come s w arm a nd pol ­
lu te the env iro nment.
Fu el suppl y and filli ng your fuel t ank 235
@ Tips
- Ru nning your eng ine whi le refue lli ng
may cause vapors to escape or even
cause fuel to sp ill out of the tank. T his
would then shut off the fuel nozzle be­
f o re the ta nk is f ull.
- Do not refuel you r vehicle with the ign i­
tion turned o n. The fuel gauge may oth­
erwise not indicate the correct f uel level
after refuelling .
- The fue l filler flap of yo ur vehicle is not
locked when you lock t he ve hicle from
t he insid e.
Unlocking the fuel filler flap
by hand
You can open the fuel filler flap by hand if the
power locking system should fail .
Fig. 199 Lug gage compa rtm ent: ope ning th e side trim
Fig . 20 0 Luggage co mpa rtme nt: Eme rgency ope ning
of fue l fil le r flap
The emergency opening mechanism is located
behind the right side trim panel in the lug­
gage compartment .
Opening the side trim .,. Insert a tool such as a screwdrive r
¢
page 2 7 3 or the emergency key into the
r ight side of the upper gap¢
fig. 199 . .,.

236 Fuel supply and filling your fuel tank
• Pry upward to release the t rim .
Fuel filler door emergency release
.. Loosen the strap from its bracket and pull
on it~
fig . 200. You can now open t he fue l
filler flap as usu al
¢page 234.

Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 201 Dr iver's s ide footwell: engine hood release
lever
"' Open the driver's door .
"' Pull the release lever on the left under the
instrument panel
i=:> fig. 201 in the d irection
of the arrow.
The hood pops up slight ly under spring pres­
sure.
Opening the engine hood
F ig . 202 Re lease lever under the engine hood
Before opening the engine hood, make sure
that the windshie ld wipers are flat against the
windshie ld. Otherwise, they could damage the
paint on the hood.
"' Pull up on the release under the hood
r::!> fig. 202 . This releases the catch.
"' Open the hood all the way
c::> &,.
Checkin g and fillin g 237
A WARNING
Hot engine coolant can burn you.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the eng ine
compartment. Wait unt il no steam or
coolant can be seen or heard before care­
fu lly opening the hood.
Closing the engine hood
"' Pull the hood down un til the pressure from
the struts is reduced.
"' Let the hood
drop down and latch in p lace.
Do not try to push it shut; it may fail to en­
gage
c;, &, .
A WARNING
--
A hood that is not completely latched
could fly up and b lock your view while dr iv­
ing.
- When you close the engine hood, check it
to make sure the safety catch has p roper­
ly engaged. The hood should be flush
with the surround ing vehicle body parts.
- If you notice while driv ing that the hood
is not secured prope rly, stop at once and
close it .
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Whene ver y ou must pe rform any wo rk in the
eng ine compartment, for e xample checking
and filling different fluids, th ere is a risk of
injury, burns and accid ent s. To pr event per­
s o nal injury always observe the following
WARNINGS . The engine compa rtment of an y
vehicle i s a hazardou s are a
c;, Lh,.
A WARNING ~
To help avoid injury, be fo re yo u check any­
thing under the hood:
- Tu rn off the engine.
- Remove the ignition key.

238 Check ing and filling
- Apply the parking brake.
- Move selector lever of automatic trans- mission to "P" (Park); put manual trans­
mission in Neutral.
- Always let the engine coo l down . Hot
components will burn skin on contact.
- To reduce the risk o f being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment .
- Never spill flu ids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electr ic fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap when the eng ine is still warm. The cool­
ant system is pressur ized and hot coo l­
ant could spray out .
-Protect your face, hands and arm from
steam or hot eng ine coolant by placing a
thick rag over the cap when you open the coolant reservoir .
-If work on the fuel system or the electri­
cal system is necessary :
- A lways disconnect the battery.
- Never smo ke or work near heaters or
open flames . Fluids in the engine com ­
partment co uld start a fire.
- Keep an approved fire ext inguisher im­
mediately available.
- T o avoid ele ctrical shock and persona l 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 repa ir
with the engine running:
- Fi rst, fully apply the parking bra ke,
move se lec to r l ever o f automat ic trans- mission to
"P" (Park); put manua l
transmission in Neutra l.
- Always use extreme caution to p revent
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 do not wea r clothing that
will hang o r droop into the engine.
- M inim ize exposure to em iss ion and
chemical hazards
~ &, .
A WARNING
=
Ca lifo rnia Proposition 65 Warning:
- Engine exhaust, some of its const ituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cance r and birt h de­
fects and reproductive harm. In addition,
certain fl uids contained in veh icles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
b irth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or fil ler opening, otherwise serious dam­
age to vehicle systems w ill occur.
@) For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regular ly. If
you see spots from oil or o ther ve hicle flu­
i ds, have your vehicle insp ected by a n au­
thorized Audi dealer.