2015 AUDI A3 CABRIOLET Owners Manual

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Care and cleanin g 207
Component Situ ation Solution
D ispl ays
Deposits Soft clotlh with LCD cleaner
Controls Deposits Soft brush, then a soft cloth with a mild soap solutiona>
Sa fet y bel ts Deposits Mild soap solution a>, allow to dry before letting them
retract
Te xtil es, Deposits adher ing to Vacuum cleaner
a rtificial l eather, the surface
Alc ant ara Water-based depos- Absorbernt cloth and mild soap solutional
its such as coffee,
tea, blood, etc.
Oil-based deposits Apply a mild soap solution al, blot away the disso lved oil
such as oil, make- or dye, treat afterward with water, if necessary
up, etc.
Special depos its Spec
ial stain remover, b lot with absorbent material,
such as ink, nail po l- t reat afterward with mild soap solution, if necessary a)
ish, latex paint, shoe
polish, etc.
Natur al le ather Fresh stains Wool cloth with a m
ild soap solutional
Water-based depos- Fresh stains: absorbent cloth
its such as coffee, Dried stains: stain remover suitable for leather
tea, blood, etc.
Oi l-based deposits Fresh stains: absorbent cloth and stain remover suitable
such as oil, make- for leather
up, etc. dried stains: Oil cleaning spray
Special deposits Spot remover suitable for leather
such as ink, nail po l-
ish, latex paint, shoe
polish, etc.
Care Regularly apply condit ioning cream that protects from
l ight and penetrates into the mater ial. Use specially-
colored conditioning cream, if necessary .
Car bon part s Deposits clean the same way as plastic parts
al Mild soap solut ion : max imum two tablespoons neutral soap in a liter of water
A WARNING
The windshield may not be treated with
water-repelling windsh ie ld coating agents.
Unfavorab le conditions such as wetness,
da rkness, or low sun can result in in­
creased glare. W iper blade chatter is a lso
possible.
- Headlight s/tail light s
-
-Never clean headlights or tail lights
with a dry cloth or sponge.
- Do not use any cleaning product that
contains alcohol, because they could
cause cracks to form.
-Wheels
- Neve r use any pa int polish or other
abrasive mater ials.
- Damage to the protective layer on the
rims such as stone chips or scratches
must be repa ired immediately .
-Se nsor s/camera l ense s
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208 Care and cleaning
-Never use warm or hot water to re­
move snow or ice from the camera
lens. This could cause the lens to crack.
- Never use abrasive cleaning materials
or alcohol to clean the camera lens.
Th is could cause scratches and cracks.
-Power top
- Remove bird droppings immediately.
- Never use gasoline, spot remover, ben-
zene, paint thinner or other solvents to
remove.
- Door windows
- Remove snow and ice on windows and
exterior mirrors with a plastic scraper.
To avoid scratches, move the scraper
only in one direction and not back and
forth.
- Never remove snow or ice from door
windows and mirrors using warm or
hot water because this could cause
cracks to form.
- To avoid damage to the rear window
defogger, do not apply any stickers on
the heating wires on the inside of the
window.
- Decorative parts/trim
- Never use chrome care or cleaning
products.
- Paint
- To reduce the risk of scratches, the ve-
hicle must be free of dirt and dust be­
fore polishing or waxing.
- To prevent paint damage, do not polish or wax the vehicle in direct sunlight.
- To reduce the risk of paint damage, do
not polish away rust spots.
- Remove cosmetics and sunscreen im­
mediately -these could damage the
paint.
- Displays
-To avoid scratches, do not use dry
cleaning methods on displays.
- Controls
- Make sure that no fluids enter the con-
trols, because this could cause dam­
age.
- Safety belts
- Do not remove the safety belts to clean
them.
- Never clean safety belts or their com­
ponents chemically or with corrosive
fluids or solvents and never allow sharp objects to come into contact
with the safety belts. This could cause
damage to the belt webbing.
- If there is damage to the webbing, the
connections, the retractors or the buck­
les, have them replaced by an author­
ized dealer.
- Textiles/artificial leather/Alcantara
- Never treat artificial leather/Alcantara
with leather care products, solvents,
floor polish, shoe polish, spot remove
or similar products.
- Have a specialist remove stubborn
stains to prevent damage.
- Never use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat.
- Objects with sharp edges such as zip­
pers, rivets on clothing or belts can
cause damage to the surface.
- Open hook and loop fasteners, for ex­
ample on clothing, can damage seat
covers. Make sure hook and loop fas­
teners are closed.
- Natural leather
- Never treat leather with solvents, floor
polish, shoe polish, spot remover or
similar products.
- Objects with sharp edges such as zip­
pers, rivets on clothing or belts can
cause damage to the surface.
- Never use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat.
- To help prevent the leather from fad­
ing, do not leave the vehicle in direct
sunlight for long periods of time . If
leaving the vehicle parked for long pe­
riods of time, you should cover the
leather to protect it from direct sun-
light. ...

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@ Tips
-Insects are eas ier to remove from paint
that has been fresh ly waxed.
- Regu lar waxing can prevent rust spots
from forming.
Care and cle anin g 209
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210 Checking and Filling
Checking and Filling
Fuel supply
Applies to vehicles: with gasoline engine
Using the right fuel helps keep the environ­
ment clean and prevents engine damage.
Fuel recommendation
The fuel recommended for your vehicle is un­
leaded premium
grade gasoline . Audi recom­
mends using TOP TIER Detergent Gasoline
with a minimum octane rating of 91 AKI (95
RON). For more information on TOP TIER De­
tergent Gasoline, please go to the off icia l
website (www.toptiergas.com).
The recommended gasoline octane rating for
your engine can a lso 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 vehicle may also be operated using un­ leaded regular gasoline with a minimum oc­
tane rating of
87 AKI/91 RON. However, using
87 AKI/91 RON octane fuel w ill slightly re­
duce eng ine 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 ava ilable .
For more informat ion on refueling your vehi­
cle, see
c:> page 211 .
Octane rating
Octane rating indicates a gasoline's ability to
res ist 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
ratings that can usually be found on the filler
pump:
- Prem ium Grade : 91- 96 AKI -
Regular Grade:
87 -90 AKI
E xplanation of the abbreviations:
AK I=
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 rat ings
lower than
87 AK I or 91 RON otherwise
expensive engine damage will occur .
- Do
not us e 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
Applies to vehicles: with gasoline engine
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
follow ing criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti -knock index must be 87 AKI 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 co nta in more than 15%
ethanol.
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

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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 stations where the sea­ sonal adjustment is more likely to be made in
time.
Q;) 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
specificat ions, ask your service station or
i ts 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
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 .
Although gasoline grades differ from one manufacturer to another, they have cer tain
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.
Checking and Filling 211
Audi 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, carbon deposit build-ups can rob your engine of peak performance.
CJ) 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 power locking system should fail, you
can still open the flap manually -for detailed
instructions see~
page 213.
You can find the fuel tank capacity of your ve ­
hicle in
~ page 280.
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 210 .
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 while you refuel your vehicle. In order to fill the tank
properly while protecting the environment,
please follow this refueling procedure careful­
ly .
A 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 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, ..,.
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212 Checking and Fill in g
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 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.
Fueling procedure
Fig. 160 R ig ht rea r side of the veh icle: open ing the
fue l filler f lap
Fig. 161 F u el filler door w ith attached fuel cap
The fuel filler door is unlocked or locked by
the central locking system.
Opening th e fu el cap
.,. Press the left side of the fuel filler door to
open it -arrow-
c::> fig. 160 .
• Unsc rew the tank cap counterclockwise.
• Place the cap from
above on the open fuel
filler door
c::> fig . 161.
Clo sin g th e fu el ca p
.,. Turn the f uel cap clockw ise until you hea r it
lock.
.,. Close f uel fil ler door until it latches .
Once the pump nozzle switches off, the fue l
tank is "fu ll". Do not fill the tank more. Other­
wise the expansion space in the tank will be
filled.
The correct fuel type for your vehicle can be
f ound on a label located on the inside of the
fuel filler door. For additional information on
fuel, refer to
c::> page 210 .
The fue l tank capacity of your vehicle is in the
Techni cal D ata c::> page 280.
To avoid fuel spill ing 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 M IL lamp
c::> page 29
to come on .
A WARNING
Not paying attention when fueling or han­
d ling fuel incorrect ly can lead to fires, ex­
plosions or serious injuries.
- Fue l ignites easily and can cause serious
burns and other injuries.
- If you do not switch the engine off when
fue ling and/or do not insert the fuel noz­
zle completely into the tank opening ,
fuel can leak out or run over. Leaked fuel can ignite and start a fire .
- Do not use the telephone while fueling.
The electromagnetic rays can cause
sparks, wh ich can ignite fuel vapors and
start a fire.
- Do not sit in your vehicle while fueling . If
you must make an exception and enter
your veh icle again while fueling, close
the door and touch metal to discharge
s tatic electricity before touching the fue l
nozz le . Static electricity can create
sparks, wh ich can ignite vapors when fu-
eling . .,._

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-Do not smoke or have an open flame in
the area when fueling your vehicle or fill­
ing a fuel container because this
increases the risk of an explosion .
- For your safety, carrying fuel containers
in your vehicle is recommended. Wheth­
er full or empty, the container can leak
and cause a fire in the event of an acci­
dent .
- If you must make an exception and
transport a fuel container, note the fol­
lowing:
- Never f ill the fuel container with fuel
while it is in or on the vehicle. Static
electricity is discharged when filling
which can cause the fuel vapors to ig­
nite and increases the risk of an explo ­
s10n .
- Always place a fuel container on the
ground before filling .
- Always hold the fuel nozzle completely
in the fuel container when filling.
- If the fuel container is made of metal,
the fuel nozzle must always be in con­
tact with the container when filling it
with fuel. This prevents static electrici­
ty from discharg ing.
- Never sp ill fuel in the vehicle or the
luggage compartment. Evaporated fuel
is exp losive and increases the risk of
serious injury or death .
- Follow legal requirements when using,
storing and transporting fuel contain­
ers.
- Make sure the fuel container conforms
to indust ry standards (ANSI/ASTM
F852-86).
(D Note
-Remove spilled fuel from vehicle paint
immediately, because it can damage
paint.
- Never drive until the fuel tank is com­
pletely empty. The irregular supply of
fuel that results from that can cause the
engine to misfire. Uncombusted fuel will
enter the exhaust system and increase
Checking and Filling 213
the risk of damage to the catalytic con­
verter.
@ For the sake of the environment
- If the fuel nozzle is used correctly , it will
indicate that the tank is full the first
time it switches off automatically. Do
not try to add more fuel, because it can
spill over. Also, the expansion space in
the tank will fill , which can result in fuel
spilling out when it becomes warm and
polluting the environment.
(D Tips
- If the engine is running while fueling, va­
pors can escape or the fuel can spill over .
Because of this, the fuel nozzle switches
off before the tank is full.
- Do not fuel the vehicle when the ign ition
is switched on . Otherwise, the fuel
gauge may not show the correct level af­
ter fueling the vehicle .
- The fuel filler door on your vehicle does
not lock when you lock the vehicle from
the inside .
Fuel filler door emergency release
If the central locking system is faulty, the
fuel filler door can be unlocked manually .
Fig. 162 Rear of the vehi cle: ri ght rea r seat folded for­
wa rd
The emergency release is located behind the
right rear seat .
The pull cable for the emergency release is lo­
cated on the cover .
.,. Remove the cover from the trim.

214 Check ing and F illin g
•Pullon the cover carefu lly ¢ fig. 162. The
tab on the cover must point forward in the direction you are pulling when pu lling on
the cover.
• To open the fuel filler door, press on the left
side
¢ page 212, fig . 160 .
{Q) Note
Only pull on the cover unt il you feel resist­
ance. You will not hear it release . Other­
w ise you could damage the emergency re­
lease mechanism.
Hood
Working in the engine compartment
Special care is required if you are working in the engine compartment
F o r w ork in th e eng in e c omp artm ent su ch as
c h ecking and fi llin g fluid s, t he re i s a risk of
inj ury, sca lding, accid ents, a nd b urn s. Fo r
thi s re aso n, follow all the follow in g listed
war ning s and ge neral safety p recaution s.
T he engine compartment is a d ang ero us
area. ¢,& .
A WARNING
To reduce the risk of injur ies, complete the
following steps before opening the hood:
- Turn the engine off.
- Switch the ignition off.
- Set the parking brake.
- Place the selector lever in the P position .
- Let the engine coo l down.
- Never open the hood when you see that
steam o r coolant drips from the engine
c ompartment- there is a danger of
burns! Wait until no steam or coolant
flows out.
- Keep chi ldren away from the engine com­
partment.
- Never spill flu ids on a hot eng ine. These
fluids (such as the freeze protection con­
tained in the coolant) can catch fire .
- Avo id short circuits in the electrical sys­
tem, especially the battery . -
When working in the engine compart­
ment, remember that the radiator fan
can switch on even if the ignition is
sw itched off, which increases the risk of
personal injury.
- Never open the cap on the coolant ex­
pans ion tank when the eng ine is warm.
The cooling system is unde r pressure.
- To protect your face, hands, and arms
from hot steam or coolant, cover the cap
with a large cloth when opening .
- Do not remove the engine cover under any circumstances. This increases the
risk of burns .
- If tests need to be performed with the engine runn ing, there is add itiona l dan­
ge r due to moving components (such as
the ribbed belt, generator and radiator
fan) and from the high voltage ignit ion
system.
- Never reach into the radiator fan. The
electric auxilia ry fan is controlled by
temperature and can switch on sudden ly .
- Pay attention to the fo llow ing warnings
listed when work on the fuel system or
on the e lectrica l equipment is required.
- Always disconnect the vehicle battery
from the vehicle e lectr ical system
- Do not smoke
- Never work near open flames
- Always have a working fire exting uisher
nearby
- To reduce the risk of electric s hock and
inj ury, never touch the fo llowing compo­
nents when the engine is running or is
be ing started :
- Ig nition cable
- Other compone nts in the electronic
high voltage ign it ion system
- If you must check or perform work on the eng ine while it is runn ing:
- Set the parking brake and place these­
lector lever in the P (park) position
first.
- Always proceed with extreme caution
so that clot hing, jewe lry or long hai r do
not become caught in the radiator fan, ..,.