2015 AUDI A3 CABRIOLET open hood

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fan belt or other moving components or do not come into contact w ith hot
components. T ie back long hair before
beginning work and do not wear cloth­ ing that can hang down into the en­
g ine .
- Limit your exposure to exhaust and
chemicals to as short a time as poss ible
c::;, &. .
& WARNING
California P ropos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certain veh icle components conta in
o r emit chemicals known to the State of
Californ ia to cause cancer and b irth de ­
fec ts and reproduct ive harm . In addition,
certain fluids conta ined 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
Californ ia to cause cancer a nd reproduc ­
t ive harms . Wash hands after handling .
(D Note
When filling fluids, be sure not to m ix the
fluids up. Othe rwise severe malfunctions
and e ng ine damage will occur .
@ For the sake of the environment
You should regularly check the ground un­
der your vehicle in orde r to detect leaks
quickly . If there are visible spots from oil
or other fluids, b ring your veh icle to an au­
thori zed Audi dealer or qualified repair fa­
cility to be checked .
Checking and Fillin g 215
Opening the hood
The hood is released from the interior .
Fig. 163 Se ct io n fro m t he dr iver 's footwell : release Lev ·
er
Fi g. 1 64 Rocke r sw it ch under t he hood
Make sure the wiper arms are not raised up
from the windshield. Otherwise the paint could be damaged .
... With the drive r's door open, pull the lever
be low the instrument panel in the direction
of the arrow
¢ fig. 163.
.,. Raise the hood slightly c::;, ,A .
.,. Press the lever under the hood upward
¢ fig . 164 . This releases the catch .
.,. Open the hood .
& WARNING
Never open the hood whe n you see that
steam or coo lant drips from the engine
compartment -there is a danger of b urns!
Wait unti l no steam or coolant flows o ut.
- Never open the hood when you see that
steam or coolant dr ips from the engine
compartment- there is a danger of burns! Wait until no steam or coo lant
flows out.
-

216 Checking and Filling
Closing the hood
,. Push the hood down until the force of the
strut is overcome.
,. Then lower the hood and let it fall into the
engine hood latch -you do
not have to press
on the hood after it is locked.~
A-
_& WARNING
If the hood is not latched completely, it
could fly up while you are driving and ob­
struct your vision .
Gasoline engine compartment overview
The most important check points.
-
-For safety reasons , the hood must a lways
be closed secure ly while driving. Because
of this, always check the hood after clos­
ing it to make sure it is latched correctly.
When latched correctly , the hood will be
f lush w ith the other body panels.
- If you notice that the hood is not latched
while you are dr iving, stop immediately
and close it, because this increases the
risk of an acciden t.
Fig. 165 Typica l locat ion of the reservoir, engine o il dipst ick, and engine o il filler open ing
@ Coolant expansion tank (- L) .. . 221 The engine oi l filler opening and the dipstick
@ Engine oil dipstick .......
... .
218 (items @ and @) c> fig. 165 may be located in
® Eng ine oil filler opening ('e::r.) 218 a different area depending on engine version.
© Brake fluid reservoir ((0) .. .. . 222 A WARNING
® Battery(+) under a cover .. .. . 224
® Body ground point(-) Read
and following the WARNINGS before
checking anything in the engine compart-
(J) Washer f luid reservoir (0) ... . 227 ment c> page 214.
® Fuse housing .......... .... . 269

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-Do not interchange the positive and neg­
ative cables .
- When working on the battery , be sure
not to short-circuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
which could lead to damage or explosion
and personal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury .
- Always keep the battery well out of the reach of children .
- Before work is done on the electrical sys­
tem, disconnect the negative ground ca ­
ble .
- Before performing any work on the elec ­
trical system , switch off the engine and
ignition as well as any electrical equip­
ment. The negative cable on the battery
must be disconnected. If you are just go­
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other­
wise you will set off the alarm.
- When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch­
ed off. Reconnect the positive cable first
and then the negative cable. Never inter­
change the cables - this could start a fire!
- Never charge a fro zen or a thawed-out
battery. It could explode! If a battery has
fro zen, then it must be replaced. A dead
battery can freeze over at 32°F (O°C) .
- Make sure the vent hose is always attach­
ed to the opening on the side of the bat­
tery .
- Never use batteries which are damaged.
There is the danger of an explosion ! Al­
ways replace a damaged battery .
A WARNING
California Proposition 65 Warning:
Checking and Filling 225
-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 problems . Wash hands after han­
dling.
(D Note
- Do not disconnect the vehicle battery
when the ignition is on or when the en­ gine is running, otherwise, you will dam­
age electronic components in the electri­
cal system.
- If your vehicle is going to stand for a
long period of time without being driven ,
protect the battery from "freezing", oth­
erwise it will be damaged and will then
have to be replaced.
Battery charging
Starting the engine requires a well charged
battery.
Fig. 170 E ngin e compar tmen t: co nn ecto rs fo r a charg­
e r and jump st art ca bles
Always read and heed all WARNINGS below
c:::> ,& and c:::> ,& in Working on the battery on
page
224 .
.,. Switch off the ignition and all electrical con­
sumers .
.,. Make sure the area is well ventilated when
you charge the battery.
.,. Open the engine hood
c:::> page 215 .
.,. Open the red cov er on the pos itive pole
c:::> fig. 170.
.,. Clamp the cha rger termin al clamps as in­
structed on the
battery terminal(+) and on-
l y on the
body ground point(-) . .,._

226 Check ing and F illin g
• Only now plug the mains lead for the charg ­
ing equipment into the wall outlet and turn
iton ¢_& .
• M ake sure the ch arging rate is not o ver
30 amp s / 14. 8 Volt.
• When the battery is fully charged: Turn the
charging equ ipment off and remove the
mains lead from the wa ll outlet .
• Now remove the clamps for the charg ing
equipment.
• Close the red cover on the posit ive po le.
• Close the hood
¢ page 216.
A discharged batte ry can fr eez e at tempera­
tures of on ly 32 F
0 (0 °C). A llow a frozen bat­
tery to thaw completely before attempting to
charge it¢ .&. . However, we recommend not
using a thawed battery again because the bat­
tery casing can be cracked due to ice forma­
tion and can leak battery acid.
Batt ery cha rg ing (Ma ximum cha rging rate
of
30 a mp s/ 14.8 Vo lt )
When charging at low voltages (e .g. w ith a
t ric kle char ger ), the battery cables do not
have to be d isconnected first . The battery
caps should
not be opened when charging a
battery.
It is not necessary to remove the battery from
the luggage compartment, and it is also not
necessary to disconnect the cables .
Fas t ch arg ing th e batter y (charging r ate
above 14.8 Volt s)
For technical reasons do not use a battery
charger that uses voltage g reate r than
14 .8 Volts to charge your veh icle's battery .
A WARNING
-
Charging a batte ry can be dangerous.
- Always follow the operating instructions
provided by the batte ry charger manu­
facturer when charging your battery.
- Never charge a frozen battery .
It may ex­
plode because of gas t rapped in the ice.
Allow a frozen batte ry to thaw o ut first.
- Do not reuse batteries which were fro­
zen. The batte ry housing may have cracked and weakened when the battery
froze.
- Charge the battery in a well ventilated
area. Keep away from open flame or elec­
tr ical spark. Do not smoke. Hydrogen gas
generated by the battery is explos ive.
- To reduce the danger of explosion, never connect or d isconnect charger cables
while the charger is operat ing .
- Fast charging a battery is dangerous and
should only be attempted by a compe­
tent techn ic ian with the proper equip­
ment.
- Battery acid that may sp ill dur ing charg­
i n g should be washed off with a solut ion
of warm water and baking soda to neu­
tralize the ac id.
(D Note
Never use a fast charger as a booster to
start the eng ine . Th is w ill seriously dam­
age sens it ive e lectronic components, such
as contro l units, re lays, radio, etc., as well
as the battery charger.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
Intelligent energy management in your vehi­
cle is responsible for distributing the elect ri­
ca l ene rgy th rougho ut yo ur vehicle
¢page 193. The intelligent energy manage­
ment system will keep the engine battery
charged better than vehicles without this sys­
tem. To make sure the additional electrical en­
ergy is ava ilable once again after you have
changed the battery, we recommend that you
install batteries of the same type and manu ­
facture only (the same as those installed at
the time your veh icle was de livered) . Specifi­
cations are listed on the batte ry housing. Your
a utho rized deale r must code the batte ry in
the energy management system to enab le you
to use the energy management functions cor -
rect ly after replacing the battery.
ll-

288 Index
Centra l indicator light .... .. .. .. .... . . 1 3
Central locking ............. ... .. .... 3 1
Ce ntr al loc king switch ..... .. .. .... .. 35
Conven ience key . . . . . . . . . . . . . . . . . . . . 34
Emergency locking ........ .. .. .. .. .. 37
Folding the exterior mirrors .. .... .. .. 36
Luggage compartment lid .. .. .. .... . . 38
p . d ower win ows ........... ... .... . . 39
Remote control key ....... .. .. .. .. .. 33
Safety central locking . . . . . . . . . . . . . . . 3 7
Setting .. ................. ...... ..
36
Certification ............. ... .. .... . 285
Changing a wheel ................... 263
Changing engine oil ........ .. .. .. .. . 219
Checking
Tire pressure ..... ......... ... .... .
240
Child restra ints
Danger of us ing c hild restra ints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . .
148
Where can I get addit ional information
about child restraints and their use? ..
187
Ch ild restra int system anchors ... .. ... 183
Child safety .... ............. .. .... . 169
Convertible lo cking retractor .. .. .. ... 180
Important safety instructions for using
ch ild safety seats .............. ....
173
Important things to know when driving
with ch ildren .....................
169
Tether anchors .................... 185
Tether straps . ........... .... .... . 185
Child safety lock
Power wi ndows . . . . . . . . . . . . . . . . . . . .
38
Ch ild safety seats ............ .. .. .. . 175
Booster seats ............ .. .. .... . 178
Convertible child seats .......... .. . 176
Convertible locking retractor . . . . . . . . . 180
H ow do I properly install a child safety
seat in my vehicle? ........ .. .. .. .. .
173
Infant seats ...................... 175
Install ing .. .. ... ..... ..... .. .. .. . 180
Installing a child restraint using the
L ATCH system .... ..... ... .. .. .... .
185
LATCH system .. . ...... ... .. .. .... . 185
Lower anchorages ............ .... . 184
Mount ing and releasing the anchorage
hook .. ... ................... ... .
185
Safety instructions . . . . . . . . . . . . . . . . . 173
Unused safety belts on the rea r seat .. 17 5 Cleaning
Cleaning/removing ice from windows
.. .
Cleaning Alcantara . ... .......... .. . .
204
206
207
Cleaning artificial leather ......... .... 20 7
Cleaning carbon parts . . . . . . . . . . 206, 207
Cleaning contro ls .. ... .. ..... ... .. .. 207
Cleaning decorative parts/trim ........ 206
Cleaning displays .. ............. .... 207
Cleaning exhaust tail pipes .... ... .. .. 205
Cleaning plastic pa rts ............... . 206
Cleaning rims ... .. ... .. ..... ... .. .. 205
Cleaning seat covers ............. .. .. 20 7
Cleaning textiles . .. .......... ....... 207
Cleaning the tail lights . .. ..... ... .. .. 205
Cleaning th e wind deflector ........... 206
Climate control system
Key recogni tion . . . . . . . . . . . . . . . . . . . .
70
Climate control system (automatic)
Adjusting air vents . . . . . . . . . . . . . .
73 , 74
Air distrib ution, air vents ..... ... .. .. . 73
Audi drive select .. ... ...... .... .. .. 107
AUTO (climate control system) ....... . 72
B lower ....... .................... 73
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Defrost ing the windsh ie ld .......... .. 73
Rea r window defogger .......... .... . 74
Recirc ulat ion mode ............ .... . 73
Setting the temperatu re . . . . . . . . . . . . . 73
synchronizing .... .. ... ..... ... .. .. . 73
Climate control system (manual)
Adjusting air vents ... .......... .
71, 7 4
Adjus ting the temperature ........... 71
Air distrib ution, air vents ...... .... .. . 71
B lowe r ... .... .. .. ... ..... ... .. .. . 71
Defrosting windows ..... .... ... .. .. . 71
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 71
Rear window defogger .......... .. .. . 74
Recirculation mode ............ .... . 72
Clock . ... .. .... .. .. ... ..... ... .. .. . 10
Clos ing
Hood . .... .... .. ............. ....
216
Windows . .. .. .. .... ......... .... . 38
Closing/opening
by remote control . . . . . . . . . . . . . . . . . . 33
with the central locking switch ..... .. .
35
with the conven ience key . . . . . . . . . . . . . 34
with the door lock ........... .... .. . 35

290 Index
E
ECO mode (automatic climate control sys -
tem) . ..... .. ................ ..... ..
72
Efficiency program . . . . . . . . . . . . . . . . . . . 28
Description .............. .... .. .. .. 28
Fu el economy messages . . . . . . . . . . . . . 29
Other equipment . . . . . . . . . . . . . . . . . . . 29
Electrical accessor ies
refer to Socket . . . . . . . . . . . . . . . . . . . . . 64
Electromechanical parking brake
refer to Parking brake ......... .... .. 82
Electromechanical steering ....... ... . 192
Indicator lights ................... 192
Electronic diffe rent ial loc k ... .. .. .. .. . 188
Indicator light . . . . . . . . . . . . . . . . . . . . . 21
Electronic immobilizer ...... .... .... .. 36
also refer to Immobilizer . . . . . . . . . . . . 31
Electronic speed limiter . . . . . . . . . . . . . . . 30
Electronic stabilization control (ESC)
I ndicator light . . . . . . . . . . . . . . . . . . . . .
21
Sport mode ................ ..... . 189
Electronic Stabilization Control (ESC) . . . 188
Emergency assistance ....... ... .... . 261
Emergency flasher . . . . . . . . . . . . . . . . . . . 50
Emergency flashers
Indicator light . . . . . . . . . . . . . . . . . . . . .
25
Emergency operation
Emergency braking function .... .... ..
84
Front passenger's door ...... .. .. .. . . 37
Luggage compartment lid .. .... .... . 261
Power top . . . . . . . . . . . . . . . . . . . . . . . . . 45
·th ' k
w1 convenience ey . . . . . . . . . . . . . . . . 80
Emergency release
Fuel filler door ........... .........
213
Selector lever . . . . . . . . . . . . . . . . . . . . . 117
Emergency starting ......... ... .... . 273
Emergency towing ... .. .... .. .. .. .. . 275
Energy management ....... .. .. .. .. . 193
Indicator light . . . . . . . . . . . . . . . . . . . . . 20
Engine
Coolant
.. .. ................ ..... . 220
Starting with jumper cables . ..... .. . 273
starting (button) ............. .... .. 78
Starting (driver messages with conven-
ience key) .. ........ ..... .. ........
81
start ing (key) . .. ...... .... ... .. .. .. 76
stopping (button) ............. ..... 79
stopping (key) ... ................ .. 78
Engine compartment
Closing the hood .............. .. ..
216
Open ing the hood ................. 215
Overview . ..... .. ................ . 216
Safety precautions ............. .... 214
Engine control (indicator light) ...... .. . 22
Engine coolant .. .. ............. .... 220
Radiator fan ... .. ... .......... .... 221
Engine oil . ..... .. ................ . 217
adding ....... .. ................ . 218
Changing ........................ 219
Checking the oil level ............... 218
Dipstick. .. .. .. .. ............ 216, 218
Indicator light . .. ... ......... ... .. . 20
Oil consumption .. ..... ..... ... .. .. 217
Specification and viscosity ... .. .. .. .. 217
Use ...... .... ................... 218
Engine speed limitation (indicator light) . 23
Environment
Break-in period . . . . . . . . . . . . . . . . . . . .
196
Catalytic converter ............. .. .. 197
Disposing of your vehicle battery . .. .. 226
Driving at high speeds ............ .. 198
Driving to minimize pollution and noise 198
Fuel economy . ... ....... ...... .. .. 198
Letting the vehicle stand and warm up. 199
Proper disposal of drained brake fluid . 222
Proper disposal of drained eng ine oil .. 219
Unleaded fuel .... ................ . 210
What should I do with an o ld battery? . 226
EPC (engine contro l) . . . . . . . . . . . . . . . . . . 22
ESC
Automatic post-collision braking sys-
tem .. ... ... .. .. .. ...... ....... ..
189
Electronic stabilizat ion control . .. .. .. 188
Sport mode . .. .. ... ....... ... .. .. 189
Event Data Recorder (EDR) . . . . . . . . . . . . 194
Exterior lighting . .. ... .......... ..... 49
Exterior m irrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . .
55
D. . 1mming .. .. ...... .. ... ... ... ..... 56
folding ... ................... ..... 55
Heating . .. ................... .... . 55

M N ,....
> co ,...., \!) ..,.,
,...., ..,., ,....,
Locking/unlock ing
by remote contro l
.............. .. .. 33
with the central locking switch .. .. .. .. 35
with the convenience key . . . . . . . . . . . . . 34
wi th the door lock ........ .... .. .. .. 35
L ong -term memory .............. .. .. 27
L ow beam
I ndicator light . . . . . . . . . . . . . . . . . . . . . 24
Low beams .. .... ............. .. .. .. 49
L ower universal anchorages (Canada) . .. 183
L uggage compartment .. .... .. .. .. .. .. 65
Cargo net .................. .... ... 68
I ncreasing the size . . . . . . . . . . . . . . . . . . 66
L oading .. .. ................. .. .... 65
Reversible mat .............. ... .. .. 69
Socket ..... .. .............. ... .... 64
Storage hooks . . . . . . . . . . . . . . . . . . . . . 68
Stowing luggage ......... .. .. .. .. . 132
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . . 67
L uggage compartment lid
Centra l locking . . . . . . . . . . . . . . . . . . . . . 38
Emergency release ................. 261
L umbar support . . . . . . . . . . . . . . . . . 60, 61
M
Maintenance ............... ... ... .. 282
Maintenance intervals
with driver information system .. .. .. .. 13
Mirror Digital compass switching on and
off ... 57
dimming ... ................ ... .... 56
Vanity mirror . . . . . . . . . . . . . . . . . . . . . . 53
Mirror compass ............ .... .. .... 57
Mirrors Adjusting the exterior mirrors . .. ... ... 55
Monitoring the Advanced Airbag System 158
Motor stopping (driver messages with mechani-
cal ignition key) .............. .... .. 81
Multifunction steering wheel ..... . ... .. 27
On-board computer ........... ... ... 27
N
Natural leather care/cleaning .. .. .. .. . 207
Navigation system
CD-ROM player . . . . . . . . . . . . . . . . . . . . . 65
Index 293
New tires and wheels
NHTSA 248
Contacting .. .. .. ................. 134
Number of seats . .. ................. 138
Number of vehicle keys ............... 31
0
Occupant protection .. .. ......... .. .. . 95
Occupant seating posi tions ....... .. .. 127
Octane rating ..... ................ . 210
Odometer ........ .. ................ 11
Oil Indicator light . .. ............. .... . 23
also refer to Engine oil . . . . . . . . 217, 218
Oil change interval
with driver information system . . . . . . . . 13
On-Boa rd-D iagnost ic System (OBD)
System indicator light (MIL) ..... .. .. . 29
On-board computer . . . . . . . . . . . . . . . . . . 26
Operation (multifunction steer ing
wheel) .. .. .. .. .... ... .. ..... ..... . 27
On-Board Diagnostic System (OBD)
Data Link Connector (DLC) ......... .. . 30
On Board Diagnostic System (OBD)
E lectronic speed limiter .............. 30
Open ing .... .. .. .. .. .. ........... .. . 31
Fuel filler door ... .. ........... .... 212
Hood ..... .. .. .. .... ............. 215
Luggage compartment lid . . . . . . . . . . . . 38
Windows ......................... 38
Open ing/closing
with the centra l locking sw itch ... .. .. . 35
with the conven ience key ........ .. .. . 34
with the door lock ................ .. 35
Operate your vehicle economically and
minimize pollution ..... ......... .. .. 198
Other equipment (efficiency program) .. . 29
Outside temperature disp lay . . . . . . . . . . . 11
Overview (cockpit) . . . . . . . . . . . . . . . . . . . . 8
p
Paint damage
206
Paint No ..... ..... .. .............. . 279
Parking aid Cleaning sensors/came ra lenses .... .. 205
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