2015 AUDI A3 CABRIOLET cooling

Safety . . . . . . . . . . . . . . . . . . . . . . . . . 126
Driving safety . . . . . . . . . . . . . . . . . 126
General notes . . . . . . . . . . . . . . . . . . . . 126
Proper occupant seating posit ions . . . 127
Driver and passenger side footwell . . . 131
Pedalarea .. .. .............. ... .. 131
Stowing luggage . . . . . . . . . . . . . . . . . 132
R eport ing Safety Defects . . . . . . . . . . . 134
Active ro llover p rotection system 135
Safety belt s . . . . . . . . . . . . . . . . . . . 138
Gene ral notes . . . . . . . . . . . . . . . . . . . . 138
Why safety be lts? . . . . . . . . . . . . . . . . 139
Safety belts . . . . . . . . . . . . . . . . . . . . . 1 41
Safety bel t pretens ioners . . . . . . . . . . 14 4
Airbag system ......... .. .. .. . .
Impor tant things to know . ... .. .. . .
Fr ont airbags .... ..... ... .. .. .. . .
Monitoring the Advanced Airbag
System .. .. ................. .. . .
Knee airbags .. ........... .. .. .. . .
Side airbags .. .. .. .... .... . .... . .
Ch ild Safety ............... .. . .
Important things to know .. .. .. .. . .
C hi ld safety seats ............ .... .
Install ing a chi ld safety seat .. .. ... .
L A TC H L ower ancho rag es and tethe rs
fo r ch ild ren . ............. .... .. . .
A ddit io nal Informa tion 146
1
46
150
158
163
165
169 169
175
180
183
187
Driver messages . . . . . . . . . . . . . . 188
Smart Technology . . . . . . . . . . . . 188
I nforma tion abo ut data reco rded by
ve hicl e cont ro l mod ules . . . . . . . . . . . 188
Elect ron ic stabilization control (ESC) 188
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Electromechanical steering . . . . . . . . . 192
All whee l drive (quatt ro) . . . . . . . . . . . 192
Energy management . . . . . . . . . . . . . . 193
Not ice about data recorded by the
E vent Data R eco rder and ve hicle
con tro l mod ules . . . . . . . . . . . . . . . . . . 194
Table of contents 3
Driving and the environment
196
T he first 1,000 miles (1 ,500 km) and
afterwa rds . . . . . . . . . . . . . . . . . . . . . . 196
Driving through wate r on roads . . . . . 197
Catalytic converter . . . . . . . . . . . . . . . . 197
Plac ing your vehicle out of service . . . 198
Operate your vehicle eco nomically and
min imize poll ution . . . . . . . . . . . . . . . . 198
Trailer towing . . . . . . . . . . . . . . . . . 201
D rivi ng with a trailer . . . . . . . . . . . . . . 201
T ra ile r tow ing t ips . . . . . . . . . . . . . . . . 202
Operating instructions . . . . . . . . 204
Care and cleaning . . . . . . . . . . . . . 204
Genera l infor mation . . . . . . . . . . . . . . 20 4
C ar w ashes .. .. .. .. . ............ .
Cleaning and care information
Checking and Filling ......... .
Fuel tank . ... .... .. . .. .. ..... ... .
Hood ... .. .. .. .... . ... ...... ... .
Engine oi l ... .. .. .... ........... .
Cooling system . .. .. ............. .
Brake fluid .. .. .. .... ........... .
Battery ......... .. ..... ........ .
Windsh ie ld washer container
Tires and wheels ............. .
Tires ... .. .. .. .... .. ........ ... . 2
0 4
20 5
210
210
2 11
214
217
220
222
223
22 7
228
228
T ire pressure mo nitoring system 258
Do-it-yourself service . . . . . . . . . 261
What do I do now? . . . . . . . . . . . . 261
L uggage compartment lid emergency
r elease . . . . . . . . . . . . . . . . . . . . . . . . . 261
Gener al infor mation . . . . . . . . . . . . . . 261
E q uipment . . . . . . . . . . . . . . . . . . . . . . 261
Spare tire . . . . . . . . . . . . . . . . . . . . . . . 262
Changi ng a wheel . . . . . . . . . . . . . . . . . 263
•
•
M a N ,....
> co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,

12 Instrum ent s and indicator lamp s
Fuel level
The display @
c;, page 10, fig. 3 only works
when the ignition is sw itched on . When the
d isplay has reached the reserve mark, the bot­
tom LED wi ll turn red and the
tD indicator
light turns on¢
page 23 . The bottom LED
blinks red when the fue l level is very low .
The on -board computer shows the range
based on the fuel leve l
c;, page 2 7, On-board
computer display.
F or the tank capac ity in yo ur vehicle , refer to
the Tec hnical Data ¢
page 280.
CJ) Note
Never d rive until the tank is completely
empty. The irregular supp ly of fuel that re­
sults from that can cause the engine to
misfire. Uncombusted f uel will then enter
the exha ust system. This can cause over­
heating and damage to the catalytic con­
verter .
Coolant temperature indicator
The coolant temperature ind icator @
c::> page 10, fig . 3 only works when the ignition
is switched on . T o prevent engine damage, ob­
serve the fo llow ing notes about the tempe ra­
ture ranges.
Cold range
If only the LEDs at the bottom of the gauge
turn on, the engine has not reached operat ing
temperature yet . Avoid high engine speeds,
fu ll acce le rat ing and heavy engine loads.
Norm al range
The engine has reached its operating temper­
ature once the LEDs up to the center of the
gauge turn on under normal driving condi­
tions. The L EDs higher up may turn on if the
engine is under heavy load or the o uts ide tem­
perat ure is h igh. This is not a cause for con­
cern as long as the. indicator light in the
display does not t urn on. Hot range
If the L
EDs in the upper area of the d isp lay
and the. indicator light in the instrumen t
cluster disp lay t urn on, the coo lant tempe ra­
ture is too high
c::> poge 19.
A WARNING
-Always observe the warning in
c;, page 214 before opening the hood
and checking the engine coolant level.
- Never open the eng ine hood if you see or
hear steam, or if you see engine coo lant
dripping from the engine compartment .
You could burn yourself. Let the engi ne
coo l off first until you can no longe r see
or hea r steam or coolant escaping.
([) Note
- Add itiona l headlights and other compo ­
ne nts in front of the a ir intake impairs
the cooling eff ect of the coolant. This in­
creases the risk of the engine over heat ­
ing dur ing high outs ide temper atures
and heavy eng ine load .
- The front spoiler also he lps to distr ibute
cooling air correct ly wh ile driving.
If the
spoiler is damaged, the coo ling effect
wi ll be impai red and the risk of the en­
gine overheating will increase. See an au­
thorized Audi dealer o r authorized Aud i
Service Facility for ass istance.

M N ,....
> co ,...., \!) ..,.,
,...., ..,., ,....,
-If the brake system indicator light turns
on together with the ABS and ESC indica­
tor lights, the ABS/ESC regulating func­
t ion may be malfunct ion ing . Funct ions
that stabilize the vehicle are no longer
available . Th is could cause the rear of the
vehicle to swerve, wh ich increases the
risk that the vehicle will slide. Drive care­
fully to the nearest authorized Audi deal­
er or authorized Audi Service Facility and
have the malfunction corrected .
PARKl<® >f' l®i Electromechanical p arking
brake
If the . (USA models) I. (Canada models)
indicator light turns on, the park ing brake was
set .
• (USA models) /. (Canada models) Cau­
tion: Vehicle parked too steep
When the indicator light blinks and this mes­
sage appears, there is not enough braking
power to keep the veh icle from rolling. The
brakes have overheated. The vehicle could roll
away even on a small incline.
• (USA models) /. (Canada models)
Please press brake pedal to release parking
brake
To release the parking brake, press the brake
pedal and press the
[2] button at the same
time , or start dr iv ing wi th hill s tart assist
¢ page 83 , S tarting from a stop.
Ill Parking brake!
There is a parking brake malfunction. Drive to
an authorized Audi dealer or authorized Audi
Service Facility immediately to have the mal­
function corrected .
Ill Parking brake: limited functionality!
There is a parking brake malfunction. Drive to
an author ized Audi dealer or authorized Audi
Service Facility immediately to have the mal­
function corrected.
litJ;):t :);Q3~ (USA models ) / ~ (Canada mod­
els) Please release parking brake
Instruments and indicator lamps 19
Release the parking brake if this message ap ­
pears.
j:lj;J:t:);JJJ~ (USA models) /~(Canada mod­
els) Parking brake auto release unavailable
If this message appears , press the brake pedal
first and then release the pa rking brake .
j:(;j;)J:);J:1:0 (USA models) / ¢@'A els) Caution: Vehicle parked too steep
When the indicator light blinks and this mes­
s a ge appears, there is not enough braking
power to keep the vehicle from rolling. The
brakes have overheated. Th e veh icle could roll
away even on a sma ll incline .
IIJ;):11:);J:1:0 (USA models) /~(Canada mod­
els) Parking brake is applied
If this message appears, press the brake pedal
first and then release the parking brake if nec ­
essary.
(D Tips
For additional informat ion on the parking
brake, refer to¢
page 82.
-L Cooling system
• Switch off engine and check coolant lev­
el!
The coolant level is too low or the coo lant
temperature is too high.
Do not continue driving and switch the engine
off . Check the coolant level¢
page 220.
- If the coolant level is too low, add coolant
¢page 221. Only continue driving once the
ind icator light turns off .
- If the coolant level is correct, the problem
may be caused by a malfunction in the radia ­
tor fan. Do not continue driving. See an au­
thorized Audi dealer or authorized Audi
Service Facility for assistance.
• Coolant temperature too high! Let engine
run with vehicle stationary
Let the engine run at idle fo r a few minutes to
cool down . .,..
•

70 Warm and cold
Warm and cold Climate control system
Description
Different systems could be installed.
- manual climate control system* or
- automatic climate control system*
The
climate control system* cools and re­
moves humidity from the air in the vehicle in­
terior. It is the most effective when the win­
dows and power top are closed. If there is a
build-up of heat inside the vehicle, ventila tion
can help to speed up the cooling process. Be­
cause of this, the windows can be opened
from outside .
~ page 39, Convenience open­
ing/closing
Pollutant filter
The pollutant filter removes pollutants such
as dust and pollen from the air .
Key recognition
You can store various settings for the manual
and automatic
climate control system* and
assign them to the key being used .
A WARNING
Poor visibility can lead to accidents.
- For safer driving, keep a ll windows free
of ice, snow and fog.
- Become familiar as quickly as possible
with the correct use and function of the
climate control system, especially with
the defrosting and defogging function .
- When the temperature is below freezing,
only use the windsh ield washer system
after the w indshield has been warmed by the cl
imate control system . The washer
fluid could freeze on the windshield and
impair visibility.
(D Note
- If you suspect that the climate control
system is damaged, switch the system
off to prevent further damage and have
it checked by an authorized Audi dealer
or authorized Audi Service Facility.
- Repairs to the Audi climate control sys­
tem require special technical knowledge
and special tools. See an authorized Audi
dealer or authorized Audi Serv ice Facility .
® For the sake of the environment
Reducing the amount of fuel used also re­
duces the amount of pollutants that enter
the air.
(D Tips
- To prevent interference with the heating
and cooling output and to prevent the
w indows from fogging over, the air in­
take in front of the windshield must be
free of ice, snow or leaves.
- Condensation from the cooling system*
can drip and form a puddle of water un­
der the vehicle. This is normal and does
not mean there is a leak.
- T he energy management system may
switch the seat heating* or rear window
defroster off temporari Ly. These systems
are available again as soon as the energy
balance has been restored.
- The flows through the vents under the
rear window. Make sure the openings are
not covered when placing clothing on the
luggage compartment cover.

....,
N
r--. > co
rl I.O
"' rl
"' rl
Climate control system controls
App lies to ve hicles: with manu al cl im ate c ontrol syst em
F ig . 7 4 Man ual cl ima te con tro l sy ste m•: con tro ls
The functions are contro lled using three dia ls
and buttons. The L ED in a button will light up
when the function is switched on.
The rear window defogger~¢
page 7 4 and
the seat heating~
c::> page 74 are described
separate ly.
Manual climat e control system*
For a comfortable temperature, we recom­
mend :
- in warmer times of the yea r, set the temper­
atu re so that it is only a few degrees be low
the outside tempe ratu re.
- set the blower at a moderate speed
- don't direct the air flow d irectly on the pas-
sengers
IA/C l Switching the cooling mode* on and
off
The cooling mode only f unct ions w ith the
b lower turned on . The a ir is not cooled and
h umidity is not removed when cooling mode
i s swit ched off. This c an cause fog o n the w in­
dows. The cooling mode sw itches off auto­
matica lly in co ld outside temperatures (below
32 °F/0°C) .
~ Adjusting the blower
To prevent the windows from fogging over,
the blower sh ou ld always ru n at a low speed.
W arm and cold 71
When the w indows are fogged , we recom­
mend using a h igher blowe r speed and tu rn­
ing t he knob to~-
I• I • I Adjusting the temperature
T he tempera ture can a adjusted in small inc re­
ments with t he dial.
Adjusting air distribution and air vents
The air di stribution is adjusted with the di­
als ~'~ .~ and ~-T he setting between
@J
and~ provides a comf ort abl e atmosphere in
most cases .
In the~ setting, the windshie ld and side w in­
dows are defros ted o r cleared of condensation
as q uickly as possib le . The rec ircul ation mode
swi tche s off , bu t can be activated aga in by
pressing the
l d;) I button.
T he round air ve nts in t he coc kpit are adj usta­
ble
¢ page 74.
To keep the windows from fogg ing in damp
weathe r, we recomme nd open ing the side a ir
vents and tilt ing them to the s ide
c::> page 7 4, Adjusting the air vents.
Foot vents a re located under the front seats
to h eat the rear of the v eh icle . ...,

7 2 Warm and cold
1- 1 Sw itching r ecircul ation mode on and
off
In recirculation mode, the air inside the vehi ­
cle is circu lated and filtered. This prevents the
unfiltered air outside the vehicle from enter­ ing the vehicle inter ior. We recommend
switch ing recirculation mode on when driving
through a tunnel or when sitt ing in traffic
c::> ,& .
Automatic climate control system controls
App lies to vehicles: with a utomat ic climate contro l system
Fig . 75 A ut oma tic cl ima te co ntro l sy ste m: con trols
The dial adjusts the temperature and the
blower speed. Press the buttons to turn the
functions on or off . T he LED in a button w ill
light up when the function is sw itched on .
The rear window defogger~
c::> page 7 4 and
the seat heating
Q] c::> page 74 are described
separately.
Automatic climate control syst em
We re commend pressing the IAU TO I button
and setting the temperature to 72
°F (22 °() .
The automatic climate control system auto­
matica lly ma inta ins a temperature once it has
been set. The temperature of the air from the
vents, the b lower speed, and air distribution
are also automat ically adju sted . In all heat ing
mode funct ions except
defrost, the blower
only switches to a h igher speed once the en­
g ine coolant has reached a certa in tempera­
ture . Recirculation mode is switched off in the de­
frost setting ~-
.&_ WARNING
-You shou ld not use the recirculation mode
for an extended period s ince no fresh air is
drawn in. With the air-conditioning*
switched off, the w indows can fog up,
which increases the risk of an acc ident .
IA/ Cl Switching th e cooling mode on and
off
T he cooling system is turned on and off with
the
IA/C l button. The air is not coo led and hu­
mid ity is not removed when cooling mode is
switched off . This can cause fog on the win­
dows . The cooli ng mode switches off auto ­
matically i n cold outside temperatu res (be low
32 °F / 0 °() .
IAUTOI Switch ing automatic mode on and
off
The automatic mode is turned on using the
IAUTOI button . AUTO mode switches off once
a b utton in the climate control system is
pressed. Automatic mode maintains a con­
sta nt temperature ins ide the ve hicle . Air tem­
perature, airflow and air d istribution are con­
trolled automatically . When automatic mode
is active, pressing the
IAU TO I button briefly IJJ,-

M N
" > co ,...., \!) ..,.,
activates the "eco" mode*1>. I n "eco" mode*,
a ll settings are lowered slightly to save fuel.
When in "eco" mode* ,
eco is shown in the dis­
play. To ex it "eco" mode*, press the
!AU TO !
button again .
I• I • I S etting the temperatu re
The temperature can be adjusted individually
for the driver and front passenger using the
dials . Temperatu res between 60 °F (+16 °C)
and 84 °F (+28 °C) can be set . Outs ide of this
range,
Lo or Hi will appear in the climate con­
trol system display. In both settings, the cli­ mate control runs with constantly at the max­
i mum cooling or heating level. The tempera­
ture is not regu lated.
Syn chroni zation: By pressing the !AU TO I but ­
ton for two seconds , the temperat ure setting
for the driver is transferred to the front pas­
senger's side. This applies a temperature
change to the front passenger's side.
~ Adjusting the blower
To prevent the windows from fogging over,
the blower shou ld always run at a low speed.
You ca n adj ust the volume of air generated by
the blower to you r preference. To have the
b lower regu la ted automatically, press the
!AU TO! button.
Adjusting th e air d istribution
The a ir distribution is adjusted with the~, [Ml
and ~ buttons. To have the air d istr ibut io n
r eg ulated automatically, press the
!AUTO ! but­
ton .
The ro und air vents in the cockpit are adjusta­
b le
~ page 74.
To keep the w indows from fogging in damp
weather, we recommend opening the side air
vents and t ilting them to the side
~ page 7 4, Adjusting the air vents.
Foot vents are located under the front seats
and adjustable vents on the end of the center
console to heat the rear of the vehicle.
,....,
"' l) This func tio n is not ava ilable in a ll coun tri es . ,....,
Warm and c old 73
~ Switching th e defro ster on and off
T he w indshield and side windows are defrost­
ed or cleared of condensation as quickly as
poss ible . The maximum amount of air flows
main ly from the vents below the windshield.
Recircu lation mode switches off. The tempera­
ture is controlled automatically. In the
[i] set­
ting, the
! AIC ! cooling mode sw itches on auto­
matically, depending on the outside air tem ­
perature .
The
! AU TO ! button sw itches the defroster off.
l""'I Sw itching recirculation mode on and
off
The recircu lation mode can be turned on man ­
ually or automatically* .
- Switching manual recirculation mode on and
off: Press the~ button. The LED light up
when switched on.
- Automatic* recircu lation mode: The recircu ­
lation mode must be activated in the MMI.
Select: the
I MENU I button >C ar> Sys tems *
contro l bu tton> A C> Auto recirculat ion .
The a ir quality sensor that is des igned for
diesel and gasoline exhaust automatically
sw itches the rec irculat ion mode on or off
depending on the leve l of po llutants in the
outs ide air .
In recirculation mode, the air inside the vehi­
cle is circulated and filtered . This prevents the
unfiltered air outs ide the veh icle from e nter­
ing the vehi cle interior. We recommend
switching recircu lation mode on when driving
th rough a tunne l or when sitting in traffic
~ .&. .
The 1- 1 button, IAU TO ! or the [i] bu tton
switches rec irculation mode off.
The system switches to recirculation mode
whe n driving in reve rse when the engine is
cold.
•

M N
" > co ,...., \!) ..,.,
,...., ..,., ,....,
Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a tra iler, p lease remember
that the addit ional load will affect durab ility,
economy and performance .
Trailer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
F or this reason, a lways fo llow the operating
a n d driving instr uctions provided and use
common sense.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer we ight. The hitch must be suita­
b le for your veh icle and trailer and must be
mounted secure ly on t he veh icle's chassis at a
technically sound location . Use only a t railer
h itch w ith a removab le ball moun t. A lways
check with the tr ailer hitch man ufac tur er to
make sure that you are using the correct
hitch.
Do not use a bumper hitch.
T he hitc h must be installed in such a way that
it does not inte rfe re with the impac t-absorb­
i ng b umper syst em. No modifica tions should
be made to the vehicle exhaus t and b rake sys­
tems . From t ime to time, check that a ll hitch
mo unt ing bolt s remain securely fas tened.
W hen you are not tow ing a trailer, remove the
trai le r hi tch ball moun t. T h is prevents the
hi tch from causing damage sho uld your ve hi­
cle be str uck from be hind
¢ &. .
Trailer brakes
If yo ur tra iler is equ ipped w it h a braking sys­
tem, check to be su re that it conforms to a ll
r eg ulat io ns .
Trailer towin g 201
The trailer hyd ra ulic bra ke system must not be
direct ly connected to the vehicle's hydraulic
brake system .
Safety chains
Alw ays use saf ety chains between your ve hicle
and t he tra ile r.
Trailer lights
Tra iler lights must meet all reg ulations . Be
su re to check with your Audi dea ler fo r cor re ct
wir ing, swi tches and relays.
Mirrors
If you a re unable to see the traffic behind you
u sing the regula r outside m irrors, then you
must i nsta ll ext ended mir rors . It is important
t h at you
always have clea r vis ion to the rear .
.8, WARNING
-
Afte r removing the trailer hit ch, do no t
s tore i t in yo ur vehicle . In case of sudden
b raking, the h itch cou ld fly forwar d an d in­
ju re you or yo ur passengers .
Operating instructions
Maximum trailer weight
A tra ile r fo r you r vehicle is limited to a ty pical
cl ass 1 or class 2 tra ile r.
Trailer load distribution
B e sure the loa d in the tr aile r is held secure ly
i n place to p reven t it from shift ing forw ard,
ba ckward or sideways.
Never allow a passenger to ride in a trailer
¢ &. in Driving instru ctions on page 20 2.
Engine cooling system
Towing a trailer makes the engine work hard­
er . It is impo rtant that the cooling system's
perfo rmance is up to the additional load .
Make sure that the coo ling syst em has enough
f lui d.
Tire pressure
When towing a trailer , inflate the tires of your
vehicle to t he cold tire pressure listed under .,..
•
•
•