2015 AUDI A3 CABRIOLET engine

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The new battery must have the same capacity,
voltage (12-vo lts), amperage, construction
and p lug sealing .
When insta lli ng the bat tery, make sure the ig­
nition and all e lectr ica l consumers are switch­
ed off .
CD Note
Ma ke sure the vent ilat ion hose on the s ide
of the battery is connected, otherwise
fumes or battery acid can leak out.
@) For the sake of the environment
Because of the problem of proper disposal
of a battery, we recommend your author ­
ized Audi dealer change the battery for
you. Batter ies contain su lfuric ac id and
lead and must always be disposed of prop­
erly in compliance with all environmental
regulations. D isposing of vehicle batteries
improperly is very dangerous to t he envi­
ronment.
Windshield washer container
F ig. 171 Engine co mpa rtment: cover on the windsh ield
an d headligh t* washer fluid reservo ir
The washer flu id containe r is marked with the
symbol~ on its cap ¢
fig. 171, q page 216,
fig. 165 .
.,. Before you check anything in the engine
compartment,
always read and heed all
WARNINGS q page 214 .
.,. Lift the filler cap tongue to add washer flu­
id. You can fill the container to the top.
.,. Press the cap back onto the filler neck after
filling the container.
Che cking and Fillin g 22 7
You can find the reservoir capacity in the table
in ¢
page 280 .
Clean water should be used when filling up. If
poss ible, use soft wa ter to prevent scaling on
washe r jets. Always add a g lass cleaner solu ­
tion (with frost protection in the winter).
CD Note
- Do not mix eng ine coolant antifreeze or
any other additives to fill up the wind­
shield washer reservoir.
- Do not use a glass cleaner that contains
pai nt so lvents, there is a risk of damag­
ing the paint.

238 Tires and wheels
Model/ Tire designation Tire pressure
Engine normal load condition full load condition
front
rear front rear
PSI kPA PSI kPA PSI kPA PSI kPA
A3 Cab -225/45 Rl 7 91 Y
30 210 28 190 36 250 36 250 riolet : High Performance
1.8 liter 225/40 R18 92Y XL
4-cylinder High Performance
35 240 32 220 36 250 36 250
225/45 Rl7 91H
33 230
30 2
10
38 260
38 260 All Season
225/40 R18 92H XL
36 250 33 230 41 280 280 All Season 41
235/35 Rl9 91 Y XL
33 230 29 200 36 250 36 250 High Performance
A3 Cab- 225/45 Rl 7 91 Y
30 210 28 190 38 260 38 260 riolet: High Performance
2.0 liter
225/40 Rl8 92Y XL
4-cylinder High Performance
35 240 32 220 38 260 38 260
225/45 R17 91H
33 230 30 210 39
270
39 270 All Season
225/40 R18 92H XL
38 260 35 240 41 280 41
280
All Season
235/35 R19 91 Y XL
35 240 29 200 38 260 38 260 High Performance
XL= reinforced or extra load tire. It may also appear as xi, EXTRA LOAD, or RF on the tire side-
wall.
The correct tire pressure for the
spare wheel is located on a la­
bel on the driver's side B-pillar.
Because technical changes may
be made to vehicle equipment
during the model year, always
compare the tire size designa­
tion on the tire pressure label on your vehicle with the tires on
your vehicle. Make sure that the tire size information on the ve­
hicle label is the same as the
size of the tires on the vehicle. This is
especially important if
the vehicle belongs to someone else or you bought the vehicle
with different rims/tires or you bought the vehicle as a previ­
ously owned vehicle.
Remember, your safety and
that of your passengers also de­ pends on making sure that load
limits are not exceeded. Vehicle
load includes everybody and ev­
erything in and on the vehicle.
These load limits are

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What do I do now? Luggage compartment
lid emergency release
In case of an emergency, the rear lid can be
opened from the inside using the trunk es­
cape handle .
Fig. 178 Rear lid: emergency release lock cylinder
.,. Insert the key into the lock cylinder near the
hand le .
.,. Turn the key counterclockwise .
General information
.,. Park the vehicle as far as possib le from mov­
ing traff ic in the event of a flat tire. In the
event of a flat tire, park the vehicle on a lev­
el surface. It you are on a steep incline, be
especially careful.
.,. Set the parking brake .
.,. Switch the emergency flashers on .
.,. Put on a reflective vest, if avai lable .
.,. Set up the warn ing t riang le, if available .
.,. Have the passengers exit the vehicle. They
shou ld move to a safe place, for example
behind a guard rail.
.&_ WARNING
Pay attention to the steps above . They are
for your protection and the for the safety
of other drivers.
.&_ WARNING
Improper use of the vehicle jack can cause
ser ious personal inju ries .
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts can-
What do I d o now ? 261
not attain the necessary tightening tor­
que if you use the hex head, potentially
causing an accident.
- The factory-supplied jack is intended on­
ly for your vehicle model. Under no c ir­
cumstances should it be used to lift
heavy veh icles o r other loads; you risk i n­
juring yourself .
- Never start the engine when the vehicle
is raised, wh ich could cause an acc ident.
- Support the vehicle securely with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise , there
is a pote ntia l risk for injury .
- Never use the jack supplied with your Aud i on another vehicle , part icularly on a
heav ier one. The jack is only su itable for
use on the veh icle it came with .
a) Tips
- Some of the onboard items listed above
are provided on certai n models only or
are opt ional ext ras.
- Before stor ing the jack*, ma ke sure it is
wound back down as far as it w ill go.
Equipment
Vehicle tool kit
Applies to vehicles: with vehicle tool kit
Fig. 179 Luggag e compar tment: cargo floor cover
folde d upward
The vehicle tool kit is located in the luggage
compartment under the cargo floor cover
¢fig . 179 .
Hook the plast ic hook CD into the luggage
compartment seal.

the tire chain before mounting the wheel
and tire is recommended.
- Loose items in the passenger compart­
ment can cause serious personal injury
during hard braking or in an accident.
Never store the inf latab le spare tire or
jack and tools in the passenger compart­
ment.
- Normal summer or winter tires must not
be mounted on the compact spare wheel
rim.
Removing the subwoofer
A pp lies to vehicles: with s ubwoofer
The subwoofer must be removed before the
spare wheel* can be removed.
Fig. 182 Spare wheel well: subwoofer
Removing the subwoofer
• Lift the cargo floor c:, page 262, fig. 180.
• Pull the latch (D c:> fig. 182 toward the ca­
ble.
• Press the locking tab @down .
• Remove the connector @ and set the re-
moved cable aside.
• Remove the bolt@.
• Carefully remove the subwoofer.
Installing the subwoofer
• Carefully place the subwoofer n the rim
well. The word "FRONT" on the subwoofer
must face forward .
• Insert the connector that was removed .
• Secure the subwoofer with the bolt.
~ • Fold the cargo floor cover back into place.
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What do I do now? 263
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang­
ing a wheel.
• After you experience a tire failure, pull the
car well away from moving traffic and try to
reach
level ground before you stop c:> _&..
• All passengers should leave the car and
move to a safe location (for instance, behind
the guardrail)
c:> _&..
• Engage the parking brake to prevent your
vehicle from rolling unintentionally
c:> _&. .
• Move selector lever to position P c:> ,&..
• If you are towing a trailer, unhitch the trailer
from your vehicle.
• Take the
jack c:, page 261 and the spare tire
r:> page 262 out of the luggage compart­
ment .
A WARNING
You or your passengers could be injured
while changing a wheel if you do not fol­
low these safety precautions:
-If you have a flat tire, move a safe dis­
tance off the road. Turn off the engine,
turn the eme rgency flashers on and use
other warning devices to alert other mo­
torists.
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the wheel being changed. When one
front wheel is lifted off the ground, plac­ ing the Automatic Transmission in P
(Park) will
not prevent the vehicle from
mov ing .
- Before you change a wheel, be sure the
ground is level and firm. If necessary,
use a sturdy board under the jack.
-

266 What do I do n ow ?
Raising the vehicle
The vehicle must be lifted with the jack first
before the wheel can be removed .
Fig. 186 Sill panels: mark ings
Fig. 187 Sill : posit ion ing the veh icle jack
., Engage the pa rkin g brak e to prevent your
vehicle from rolling un intentionally.
., Move the
se lect or l ever to po siti on P .
., Find the marking (imprint) on the sill that is
nearest the wheel that wi ll be changed
r::> fig. 186. Behind the marking, there is a
lifting po int on the sill for the vehicle jack.
., Vehicles with a sill : Note the position of the
s ill when pos itioning the vehicle jack
¢ fig . 187 .
., Place the vehicle jack (vehicle tool kit) on a
firm su rface. Use a flat, stab le support if
necessary. On a slippe ry surface such as tile,
you should use a non-slip pad (such as a rub­
ber mat)
c::> A .
., Turn the vehicle jack located under the lift­
ing point on the sill to raise the jack until its
arm @r=>
fig. 187 is located under the des­
ignated plastic mount
c> A, r=>@ .
., Align the jack so that its arm@r=> fig. 187
engages in the designated lifting point in
the door sill and the movable base @ lies
flat on the gro und . T he base @ must be
ver­
tical
under the lift ing po int @ . .,
Wind the jack up fu rther until the f lat tire
comes off the ground
r=> A.
Position t he vehicle jack only under the desig ­
nated lifting points on the si ll
¢fig. 186.
There is exactly one location for each wheel.
The jack must not be positioned at any other
location
r=> ,&. r=>Q).
An un sta ble surf ace under the jack can cause
the vehicle to slip off the jack . Always provide
a firm base for the jack on the ground . If nec­
essary place a sturdy board or similar support
under the jack. On
hard, sl ipp ery su rfaces
(such as tiles) use a rubber mat or similar to
prevent the jack from slipping
c> ,&. .
A WARNING ~
-You or your passengers could be injured
while changing a wheel if you do not fo l­
low these safety preca utio ns:
- Position the vehicle jack on ly at the
designated lifting points and align the
jack. Otherwise, the vehicle jack could
slip and cause an injury if it does not
have sufficient hold on the vehicle .
- A soft or unstable surface under the
jack may cause the vehicle to slip off
the jack . Always provide a firm base for
the jack on the ground. If necessa ry,
use a stu rdy board under the jack.
- On hard, slippery surface (such as t iles)
use a rubber mat or simi lar to prevent
the jack from slipping.
- Only raise your vehicle with the vehicle
jack provided by the fac to ry.
If you use
a vehi cle jack for another vehicle, your
vehicle can slide and cause injury.
- Changes in temperat ure or load can af­
fect the height o f the veh icle .
- Never start the engine when the vehi­ cle is raised, which co uld cause an acc i­
dent.
- Suppo rt the ve hicle securely with ap­
propr iate s tands if work is to be per­
formed underneath the vehicle; other ­
wise, there is a potential risk for in jury . .,.

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Fuses and bulbs
Electrical fuses
Replacing fuses
Fuses that have blown will have metal strips
that have burned through.
Fig. 190 Steering column area: cover
Fig. 191 Left side of the engine compartment: fuse
cover
Fuses in the interior
The fuses are behind the cover in the steering
column area¢
fig. 190.
•Turnoff the ignition and the fai led e lectrical
equipment.
• Check the following table to see which fuse
belongs to the eq uipment
¢page 270.
• Remove the cover(" AIRBAG" label)
¢ fig . 190. Begin at the bottom right corner
-arrow-.
• Remove the plastic clip from the fuse panel
cover in the eng ine compartment ¢
fig. 191.
• Remove the blown fuse using the plastic
clamp and replace the f use with an ident ica l
new one .
• Install the cover .
Fuses and bulbs 269
Fuses in the engine compartment
•Tu rnoff the ignition and the failed electrical
equipment.
• Check the fo llowing tab le to see which fuse
be longs to the equipment¢
page 271.
• Remove the fuse panel cover¢ fig. 191.
• Remove the plastic clip from the fuse pane l
cover
¢ fig. 191.
• Remove the blown fuse using the plastic
clamp and replace the fuse with an identical
new one.
The indiv idual circuits are protected by safety
fuses. The fuses are located under the steer­
ing wheel beh ind a cover and in the left side of
the engine compartment .
_&. WARNING
-
Do not repair fuses and never replace a
blown fuse with one that has a higher amp
rat ing. This can ca use damage to the elec­
trica l system and a fire .
(D Note
-If there are multip le fuse values in a cell
in the follo w tables, for example
5/10/20, it is because of equipment-re­
lated differences. Replace the burned
fuse with an identical new one.
- If a new fuse should burn out again
shortly after you have insta lled it, have
the electrical system checked by your au­
thorized Audi dealer or qualified repair
facility as soon as possible.
(D Tips
- The following table does not list fuse lo­
cat ions that are not used.
- Some of the following tables only apply
to in certain models or options.

2 70 Fuses and bulbs
Interior fuse assignment
No. Equipment Ampere
Fl 3 Adaptive dampers contro
l
20
module
Fl4 Climate
control system
30
blower
Fl S E
lectronic steering column
10
lock
Fl6 MM I area 7.5
Fl7 Instrument cluster 5
Fl8 Rearview camera
7.5
F l9 Convince key
system control
7.5
module, tank system
F20 Tank system
7.5
F23 E
xterior lighti ng, heated
40
washe r fl ui d nozzles
Panorama sunroof/ power
F24 top control module, power 20/30
Fig. 192 Vehicle inter ior : fuse assignment top latch (Cabriolet)
No. Equipment Ampere
F25 Door/dr
iver's side doors (for
30
example power windows)
Fl Engine components 30 F26 Seat heat
ing 30
F2 Seat adjustment 10 F27
Sound-amplif
ier
30
F3 Hydraulic pump
cover (Cab-
40
riolet) F28
Power top control module,
5
elect ro ni cs (Cabr io let)
F4 M
M co ntrols, M MI-compo-
7.5
nents F29
Inte
rior lights
7.5
F3 1 E xterior lighting
40
F5 Gateway
5
F32 Driver ass istance systems 7.5
F 6 Anti-theft a
larm system
s F33 Airbag 5
Climate/heating control, se-
Button illumination, coils
lector lever (automatic
for upper cab in heating relay
F7 transmission), park ing heat- 10
er, rear window heater re lay F34 (Cabriolet) and socket relay,
7.5
in ter ior sound, back-up light
coil switch, temperature sensor,
Diagnosis, electrical parking oil level sensor
F 8 brake
switch, light switch,
10
rain/ light sensor, interior
light ing Diagnosis, headlight range
F35 co
ntrol system, a ir quality
10
sensor, a utomat ic dimming
F9 Steering column
switch
1
module
Fl0 D isp lay 5 rearview mir
ror
F36 Right
corner ing light/ right
15
LED-headlight
Fll Reversible driver's
side safe-
25
ty belt tensioners F37
Left corner
ing light/ left
15
L E D- headlight
Fl 2 M MI area 15/20

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No. Equipment Ampere
Door/front passenger's side
F39 doors (for examp le, power
30
windows)
F40 Sockets 20
F41 Reversible front
passenger's
25
side safety belt tensioners
F42 Central locking components,
40
windshield washer system
F43 Headlights, light ing 30
F44 all wheel drive
15
F49 Starte
r, clutch sensor, head-
5
light re lay coil
FS3 Rear window defogger 30
The power seats* are protected v ia
ci rc uit
b reaker s
that automatically sw itch on after a
few seconds after the overload has been re­
duced.
(D Tips
Note that the following table was accurate
at the time of print ing and is subject to
change.
Left engine compartment fuse
assignment
F ig. 193 Engine compartme nt: fuse assignment
No.
Fl
F2
F3
F4
F5
F6
F7
F8
F9
FlO
F ll
F12
Fl3
FlS
F l 6
F l 7
Fl8
F19
F20
F22
F23
F24
F3 1
F32
Fu se s and bulb s 2 71
Equipment Ampere
E5C contro l modu le 40
ESC contro l modu le 40
Engine control module (gas-
15/30
oli ne/d iesel)
Engine cooling, eng ine com-
ponents, auxiliary heater 5/10
coi l relay (1+2), secondary
air injection pump relay
Engine components, tank 7.5/10/
system 15
Brake light sensor 5
Engine components, wa ter 7.5/10/
pumps 15
Oxygen sensor
10/15
Engine compone nts, ex-
haust door, glow time con- 5/10/20
tro l module, SU LEV valve
Fuel injectors, fuel control
15/20
module
Auxiliary heater heating ele- 40
ment 2
Auxilia ry heater heat ing ele-
40
ment 3
Automat ic transmiss ion con-
15/30
t ro l module
Horn 15
Ignit ion coil 5/20
ESC contro l module, engine
7.5
control module
T ermina l 30 (reference volt-
5
age)
Windsh ie ld wipers
30
Horn 10
Termina l 50 diagnosis
5
Starter 30
Auxilia ry heater heat ing ele-
40
ment 1
Vacuum pump 15
L E D head lights 5