climate control AUDI TT ROADSTER 2015 Owners Manual

2 Table of contents Vehicle literature .. .. .. .. .. ... .
About this Owner's Manual ...
Controls and equipment .. ... .
Cockpit ................ .... .. . .
General illus tration .... ... .. .. ... .
Instruments and warning/
indicator lights ........ .. .. .. . .
Ins truments . .. .. ..... ... .. .. ... .
War ning/ indi cator lights ... .. ... .. .
Driver information system .. .
Introduct ion . .. .. ..... ... .. .. ... .
Trip computer .. .. ..... ... .. .. ... .
M enu display . ........... .... ... .
Efficiency program ........ .. .. .. . .
Service interval d isp lay ..... ... .. . .
Lap timer .. .......... ........ .. .
On- Board Diagnostic system (OBD) .. .
Opening and closing .. .. .. .. . .
Keys ........................ .. .
P owe r locking system ............ .
R ear lid/ trun k li d ................ .
Ant i- t heft ala rm system ... .. .. .. . .
P owe r win dows .. ..... ... .. .. ... .
Convertible top .............. .
Convertible top ....... ... .. .. ... .
W ind Deflector . .. ..... ... .. .. ... .
Conve rtible top eme rgency o peration .
Clear vision .. .. ..... ... .. .. ... .
Lights ...... .. .. ..... ... .. .. ... .
Inter ior lights .. . ...... ... .. .. ... .
V1s1on . .. ................. .. ... .
W iper and washer system .. .. .. ... .
D ig ita l compass ........... .... .. .
Seats and storage ....... .. .. . .
Ge neral recommendat ions ........ .
Ad just ing front seats manually .. ... .
5
6
8
8
8
1 0
1 0
12
2 2
22
23
24
27
28
28
30
32
32
34
37
3 8
39
4 1
41
44
4 4
4 8
48
51
52
54
58
59 59
60
P owe r seats . . . . . . . . . . . . . . . . . . . . . 6 1
H ead res traints . . . . . . . . . . . . . . . . . . 6 2
L uggage compartmen t . . . . . . . . . . . . 6 2
Cup holder . . . . . . . . . . . . . . . . . . . . . . 63 Asht
ray ... .... .. ... .. ..... .... . .
Cigarette lighter/socket . ..... ... .. .
Storage ... .. .. .. .. ... .. .. .. .. .. .
Warm and cold ... .. ..... .... . .
Climate controls .. .. .... .... ... .. . 63
64
65
67
67
On the road
. . . . . . . . . . . . . . . . . . . 72
Stee ring . ..... .. ... .. ..... ... .. .
Ignition lock and ignition sw itch .. .. .
Starting and stopping the engine ... .
Parking brake ................... .
Speed warning system ............ .
Cru ise cont ro l .. .. ............... .
Audi magnet ic r ide ... ... .... ... .. .
Spo rt m ode .................. .. .
A coustic parking sys tem
Transmission .. .. ........... .. .
S t ronic transmission ........... .. .
72
72
73
74
75
77
79
79
79
81
81
Homelink . . . . . . . . . . . . . . . . . . . . . 88
U nivers al remote control ...... .. .. .
Safety first ................... .
Driving Safely .... .......... .. .
Gener al notes .. .. ............. .. .
P roper occ upan t seating positions . . .
Drive r and passenger side footwe ll .. .
Pedal a rea ..... .. .. ... ..... ... .. .
Stow ing luggage . ............. .. .
Reporting Safety Defects ........ .. .
88
9 1
91
91
92
95
96
96
98
Safety belts . . . . . . . . . . . . . . . . . . . 100
General notes . . . . . . . . . . . . . . . . . . . . 100
Why safety belts? . . . . . . . . . . . . . . . . 101
Safety be lts . . . . . . . . . . . . . . . . . . . . . 103
Safety belt pretensioners . . . . . . . . . . 106
Airbag system . . . . . . . . . . . . . . . . . 108
Important th ings to know . . . . . . . . . . 108
Front air bags .. .. ... .. ....... ... . 112
Moni to ring the Advanced Ai rbag
S ystem . . . . . . . . . . . . . . . . . . . . . . . . .
118

Warm and cold Climate controls
Controls
W arm and cold 6 7
The air conditioning automatically maintains the selected temperature in the vehicle interior
throughout each season .
Fig. 78 Climate contro ls
We recommend the following sett ing :
• Rotate the knob
c::> fig. 78 @ to the right to
switch on the air conditioning .
• Set the temperature to 72 °F (22 °() .
• Press the
!AUTO I c::> fig . 78 button .
Using the previously recommended setting is
the quickest way to achieve a comfortable cli ­
mate in the vehicle . Th is setting should there­
fore only be changed when persona l comfort
l eve ls o r certain circumstances requ ire it .
The climate controls are a combination of au ­
tomatic heating and ventilation systems and a
coo ling system which dehum idifies and coo ls
the air inside the vehicle .
The climate controls automatically maintain a temperature once it has been set. The tem­pe rat ure of the air from the v ents, fan speed
(air vo lume) and ai r distribu tion are also auto ­
mat ica lly adjusted . The system also takes into
account strong sunshine so that manua l ad ­
justment is not necessary . So in almost all
cases,
a utomatic mode offers the best cond i­
tions for the comfort of the occupants at all
times of the year
c::> page 70 .
Plea se note:
In cooling mode, relative humidity in the inte­
rior is reduced . This prevents the w indows
from fogg ing up .
When relative hum idity and temperatures
outside are high,
condensation can drip from
the a ir cond ition ing evaporator and form a
poo l of water under the veh icle. This is normal
and not an ind ication of a leak!
When outside temperatures are low, the fan
does not switch to a higher speed until the coolant has reached an adequate tempera ­
tu re , with the exception of the defrost set­
t ing.
When accelerating at wide-open throttle, the
air condit ioning compressor is temporar ily
switched off to maintain full engine power.
In order to ensure engine cooling under ex­
treme engine loads, the compressor is switch­
ed off if coolant temperatures cl imb too high .
Funct ions are set by turn ing the rotary knob
or switched o n and off by tapp ing the buttons.
1111-

68 Warm and cold
The LE D in the buttons ill uminates when the
function is active .
Button(s) Meaning
Rotary Temperature selection
knob
(D ¢ page 68
Rotary Switch air conditioning on/off
knob @lil (
F an) ¢
page 68
Rotary Air distribution ¢ page 69
knob @
~ Defrost ¢ page 70
~
Rear window defogger
¢page 70
Heated seat* driver/passenger
I-..i +I side ¢ page 71
~ Recircu lation ¢ page 70
IA/Cl Switch on cooling system
¢page 70
Pollutant filt er
The pollutant filter (particle filter) ensures
that contaminants in the outside air (such as
d ust or pollen) are greatly reduced or stop­
ped. The air is also filtered in recircu lation
mode.
The po llutant filter element must be changed
according to the intervals specified in the
maintenance schedule so that the air condi­
tioning system's performance is not adversely
affected .
If the filter's effectiveness is weakened by
driving the vehicle in areas with heavily pollut­
ed outside air, the filter element should also
be changed in between the listed services.
A WARNING
For safety reasons, it is important that all
w indows are free of ice, snow, and conden­
sation. Only then is good visib ility ensured.
Please fam iliari ze yourse lf with the co rrec t
operation of the air conditioning and how
to de humidify/defrost the windows .
([) Note
-If you suspect that the clima te controls
have been damaged, swi tch the system off to avoid damaging it, and have it in­
spected by an authorized Audi dea
ler .
- Audi climate control system repairs re­
quire special expertise and the proper
tools . You should contact an authorized
Audi dealer in the event of malfunctions.
(D Tips
- To avoid adversely affecting heating and
cooling performance and to prevent con­
densation on the windows, the air intake
in front of the windshield must be free of
ice, snow, and leaves.
- The a ir coming from the vents and circu­
lat ing through the entire interior is ex­
tracted through the out let slots in the
side pane ls in the luggage compartment .
Make sure that the outlet slots are not
covered by clothing, etc.
- Climate contro l works most effectively if
the windows are closed. However, if the
inter io r of a par ked veh icle is ext reme ly
hot from the sun's rays, briefly opening
the windows can speed up the cooling process .
Setting temperature
.,. Turn the rotary knob (D ¢ page 67, fig. 78
to the desired temperature setting.
T o set a lower temperature, turn the rotary
knob to the left. To set a higher temperature,
turn the rotary knob to the r ight. There are
additional intermediate settings available to
adjust the temperature as needed.
Switching climate control on and off
Switching the climat e control sy stem on
and off
.,. Tu rn the knob@¢ page 67, fig. 78 to the
r ight to switch climate cont ro l on. The LED
next to the word O FF goes out.
.,. Turn the knob@¢
page 67, fig. 78 to the
left to switch the climate control system off.
The LED next to the word OFF comes on.
Iii>

Setting fan speed 8&
• Turn the knob@¢ page 67, fig. 78 to the
setting you want to adjust fan speed (a ir
quantity).
I n automat ic mode the cl imate control sys­
tem automatically regulates fan speed de­
pending on interior temperature. Yo u can ad­
just the volume of air produced by the fan to
meet your own requirements.
Air distribution
Fi g. 79 Inst rume nt pa ne l: Locat ion of ai r vents
• Turn the rotary knob@¢ page 67, fig. 78
to the des ired setti ng.
• To open a nd close the out lets, turn the ad­
justing ring .
• To ad just the direct io n of the airflow from
the outlet, move the tab in the center of the
outlet in the desired d irection. The direction
of the air de livered from the vents can be
adjusted horizontally and vertically.
A ir distribution :
- In sett ing
-0, air flows only to the w indows,
vents (!) and @are open . To defrost the
driver and front passenger side windows
most effectively, the vents @should be di ­
rected toward the side w indows.
- In sett ing®, a ir flows on ly to the dr iver/
passenger, vents ® and @ are open.
- In sett ing
-Or, air flows only to the footwell,
vents ® are open.
Warm and cold 69
@ Tips
If the difference between the desired tem­
perature set by you and the veh icle's interi­
or temperature is too great, the fan speed
will change automat ically. This is done so
that the des ired temperature setting is
reached as q uickly as possib le.
- I n setting~. air flows only to the windows
and the footwell, vents (!) , @ and ® are
open.
T he re are addit ional comb inat ions (thro ugh
i ntermediate settings) available to adjust a ir
dist ribution as needed.
{t) Tips
If the climate controls are running in cool­
i ng mode, air should flow mainly from
vents @and @. To achieve sufficien t cool­
i ng, you sho uld never close these ven ts
complete ly .

The rear window defogger works only when
the engine is running. The indicator light in
the button illuminates when the rear w indow
defogger is turned on .
The rear window defogger is switched off au­
tomatically after approx . 10 minutes .
@) For the sake of the environment
As soon as the rear window is clear, yo u
should switch the rear window de fogger
off . The reduced power consumption has a
beneficial effect on fuel consumption.
Heated seats~
Applies to vehicles: with heated seats
The seat cushion and the seotbock of the
front seats con be heated electrically .
.,. Press the heated seats b utton I-J + I
Q page 67, fig. 78 to set the level of heating
desired .
The range of controls goes from 1 to 3. The heat setting se lected is shown by LEDs above
the button .
A WARNING
Individuals with reduced sensitivity to pain
or temperature could develop burns when
using the seat heating function. To reduce
the risk of inju ry, these individuals should
not use seat heat ing .
(D Note
To avo id damage to the heating elements
in the seats, do not kneel on the seats or
place heavy loads on a small area of the
seat .
Using the climate controls economically
Economical use of the climate controls helps
to save fuel .
When climate control is working in coo ling
mode, engine performance is reduced and
fuel consumption is affected . To keep the time
Warm and c old 71
the air conditioning is on as short as possible,
you should do the following:
.,. If you would like to save fuel, switch the ai r
condi tioning off .
.,. If you open the windows while driving,
switch the air conditioning off .
.,. If the veh icle is extremely hot d ue to the
heat of the sun, br iefly open doors and w in­
dows .
@) For the sake of the environment
When you save fuel, you reduce emissions
from the vehicle.

The relative perform a nee of ti res depends
upon the actua l conditions of their use, how ­
ever, and may depart sign ificantly from the
norm due to var iat ions in dr iving habits, serv­
ice practices and differences in road character­
istics and climate .
Trac tion
The traction grades, from highest to lowest,
are AA, A, Band
C. Those grades represent the
tire's ability to stop on wet pavement as measured under controlled cond itions on
specified government test surfaces of asphalt
and concrete . A tire marked C may have poor
traction performance ¢,&. .
Temp erature
The temperature grades are A (the h ighest),
B, and
C, representing the t ire's resistance to
the generat ion of heat and its ability to dissi ­
pate heat when tested under controlled condi­
tions on a specified i ndoor laboratory test
wheel.
Sustained high temperature can cause the
materia l of the tire to degenerate and reduce
tire life, and excessive temperature can lead
to sudden ti re fa ilu re ¢ ,&. .
The grade
C corresponds to a level of perform ­
ance which all passenger car tires must meet
u nder the Federa l Moto r Veh icle Safety Stand­
a rd No.
1 09. G rades Band A represent h igher
l eve ls of perfo rmance on the laboratory tes t
wheel than the m inimum required by law .
A WARNING
The traction grade assigned to this ti re is
based on stra ight-ahead b raking t raction
tests, and does not include acceleration,
cornering, hydrop lan ing or peak traction
character istics.
A WARNING
The temperature grade for this t ire is es­
tablished for a t ire that is p roperly inflated
and not overloaded. Excessive speed, un­
derinflation, or excessive loading, either
-
Tire s an d wheel s 195
separately or in combinat ion, can ca use
heat bui ldup and possible tire failure.
Winter tires
Winter tires can improve vehicle handling on
snow and ice. At temperatures below 45 °F (7 °C) we recommend changing to winter
tires.
In some heavy snow areas, local governments
may require true winter o r "snow" tires, those
with very deeply cut tread. These tires should
o nly be used in pairs and be installed o n all
four wheels . Make sure you purchase snow
t ires that are the same size and construction
type as the other tires on you r vehicle.
If your vehicle is equipped w ith all-whee l
drive*, th is w ill improve traction during winter
driv ing, even with the standa rd tires. Howev­
er, we stro ngly recommend that you always
equip all fou r whee ls o n your veh icle w ith co r­
rect ly fi tted winter tires o r all-season tires,
when w inter road condit ions are expe cted .
T his also improves the veh icle's b raking per ­
formance and reduces stopping distances.
Summe r tires provide less grip on i ce and
snow.
Winter tires (snow tires) must always be fitted
o n all fo ur wheels .
Ask your authorized Audi dealer or qualified
workshop for permitted
winter tire size s. Use
o nly rad ial w inter t ires.
Winter tires lose their effectiveness when the
tread is worn down to a depth of
0 .157 inch
(4 mm) .
Only drive w ith w inter t ires under w inter con­
dit ions. Summer t ires handle better when
there is no snow or ice on the roads and the
temperature is above 45 °F (7 °() .
If you have a flat tire, see notes on spare
whee l
¢page 191.
Please a lways remember that winter tires may
have a lowe r speed rating than the tires o rigi -
nally installed on your vehicle at the time it .,.
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230 Index .:..:..:..::....::.....:..._ ___________________________ _
Important warn ings 176
Location . . . . . . . . . . . . . . . . . . . . . . . . . 176
Low ... .. .. ................ ..... . 146
Replacing the battery . . . . . . . . . . . . . . 17 5
State of charge . . . . . . . . . . . . . . . . . . . . 146
Winter operation ............. .. ... 175
Working on the battery .... .. .. .. .. . 176
Before driving . . . . . . . . . . . . . . . . . . . . . . . 91
Blended gasoline .......... .. .. .... . 160
Boost ... .. .. .. . .......... .. .. .... .. 26
Booster seats .............. ... .... . 136
Boost pressure indicator ........ .. .. .. 26
Brake fluid Changing the brake fluid ... .. .. .. .. . 174
Checking the brake fluid level . .. .. .. . 17 4
What is the correct brake fluid level? .. 174
What should I do if the brake fluid warn-
ing light comes on? ....... .. .. .... . 174
Brake system ................ .. .... . 174
Anti-lock brake system . . . . . . . . . . . . . . 18
Brake assist system ........ ..... .. . 141
Brake fluid . .............. ... .. ... 174
Brake fluid spec ificat ions for refill and re-
p lacement . ... .......... .. .. .. .. . 17 4
Brake light defective ........ .. .. .. .. 20
Brake pads ............... ... .... . 149
General information ....... ..... .. . 144
How does the moisture or road salt affect
the brakes? .............. .. .. .. .. . 144
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 14
Warning/indicator lights .... ..... .. .. 14
Worn brake pads symbol . ........ .. .. 19
Break-in period ................ .. .. . 149
Brake pads .............. .... .... . 149
Tires .. .. .. ............. .. .. .. ... 149
Bulbs 215
C
California Proposition 6S Warning .... . 165
Battery specific .......... .. .. .. .. . 177
Capacities . .. ................ ... ... 223
Carbon parts Cleaning . . . . . . . . . . . . . . . . . . . . 156, 157
Care .. .. .. .. ... .......... .. .. .. .. . 154
Cargo area
refer to Luggage compartment . . . . . . . . 96
Catalytic converter ......... .. .. .... . 150 CD changer
..... .. ............. ..... 65
Certification ...... ................ . 228
Changing a flat tire . ... .......... .. .. 208
Changing engine oil ............. .... 170
Checking Battery acid level ...... ........... . 177
Engine coolant level .... ........... . 172
Checking tire pressure ........... .... 186
Child restraint Danger of using child restraints in the
front seat ..... .. ................ . 109
Child restraints
Where can I get additional informat ion
about child restraints and their use? .. 140
Child safety ..... .. .......... ...... . 129
Convertible locking retractor . .. ... ... 137
Impo rtant safety instructions for using
child safety seats ... ........... .. .. 132
Important things to know when driving
with children .... ................ . 129
Child safety seat ... ..... ........... . 134
Convertible locking retractor . .. .. .. .. 137
Installing . .... .. ............. .... 137
Child safety seats
Booster seats .. .. ................ . 136
Convertible child seats ... ...... .. .. 134
How do I properly install a child safety . h' l
? 132
seat in my ve 1c e . ............... . .
Infant seats . .. .. ... .......... .. .. 134
Safety instructions ................ . 132
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . 64
Cleaning ... .... .. ............. .... 154
Climate controls ... ............. .. .. . 67
A/C operat ion . . . . . . . . . . . . . . . . . . . . . . 70
Air distribution ... ................ .. 69
Air recircu lation mode ............... 70
Automatic mode . . . . . . . . . . . . . . . . . . . 70
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Defrost . .. .. .. .. ............. .. .. . 70
Economical use .. ....... ...... .. .. . 71
Fan .. ..... ... .. .. .............. .. 68
Heated seats .. .. .......... ...... .. 71
Heating ... .. .. .. .. ... ........ .... . 67
Pollutant filter ... ............. .. .. . 67
Rear window defogger ............... 70
Switching on and off .............. .. 68

F
Fan ... .. .. .. .. .... .. .... ... .. .. .... 68
Radiator ... .. ... .. ..... ... .. .. ... 173
F astening
Booste r seats ............ .. .. .. .. . 136
Conve rtible c hild s afety sea ts . .. .. .. . 134
I nfant sea ts
Flat t ire 134
Changing .. .. .............. ... ... 208
F loor mats . . . . . . . . . . . . . . . . . . . . . . . . . . 96
F og lights . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Foldi ng master key w it h remote contro l . . 32
F oot pedals . . . . . . . . . . . . . . . . . . . . . . . . . 96
F or the sake of the environmen t
Gasoline fumes and the environment . . 16 2
L e tt ing yo ur engine warm up ... .. .. .. 73
Refueli ng .. .. .. .. .. .... ... .. .. ... 162
Saving fue l by early upshifting . ... .. .. 1 0
Fr ont airbags
D escr ipt io n ... .. ......... .. .. .. ... 1 12
H ow they work . .. ..... ... .. .. .. .. . 11 7
Fronta l co llisions and the laws of physics 10 1
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 59
Adjusting .. ............. .... .. .... 93
Adjusting the manual seats . .. .. .. .. .. 60
Ch ild restra ints in the front seat ... .. . 109
Fu el
Additives ... .. .. .. .. .... ... .. .. ... 160
Blended gasoline ......... .. .. .. .. . 160
Current fuel mileage . . . . . . . . . . . . . . . . 23
F iller neck ................ ... ... .. 161
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Fue l supp ly too low . . . . . . . . . . . . . . . . . 20
Gasoline . .. .. .. ......... .. .. .. ... 160
Gasoline additives ........ .. .. .. .. . 16 1
Octane rating ............ .. .. .. .. . 160
Recommenda tion . ..... ... .. .. .. .. . 160
Refue lling . ... .... .. .... ... .. .. ... 162
Reserve .... .. .. .. .. .... ... .. .. .... 1 2
Tank capacity . ........... .. .. .. .. . 223
Unlock ing the fue l filler f lap by ha nd . . 163
F ue l economy messages (eff iciency pro -
g ram) ..... .. .. .. .. .. .... ... .. .. .... 27
F use arrangement ......... .. .. .. .. . 213
Inde x 233
G
Garage door opener ( Home link) ... .. .. . 88
Gas d ischarge lamps .. . .. .. .. ... ... .. 215
Ga uges
Engine coolant temperature . . . . . . . . . . 11
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 10
General i llustration
Instruments and controls .... ... .. .. .. 8
Generator (warning/ indicator ligh ts) . .. . 16
G lossary of tire and loading term inology 181
G love compartme nt . . . . . . . . . . . . . . . . . . 65
G ross Vehicle We ight Rating (GVWR) ... 222
H
Head lights ....... .. ..... ........... 48
adaptive light .. .. .. . .. .... .... .. .. . 49
Cleaning .. .. .... ... .. ... ... .... .. 155
defective . . . . . . . . . . . . . . . . . . . . . . . . . . 20
F ron t fog lights . . . . . . . . . . . . . . . . . . . . 50
Switching off . ..... . .. .. ..... ... .. . 48
Switching on ... .... . ... ...... ... .. . 48
Washer system . . . . . . . . . . . . . . . . . . . . . SS
Xenon headlights . .. ........... .... . 48
Hea d restr aints .. .... ... .......... .. . 94
Adjus ting ... .... .. . .. .. ..... ... .. . 94
Heated exter io r mir ro rs . . . . . . . . . . . . . . . . . . . . 52
fron t seats ( climate co ntrol) ..... .. .. . 71
re ar w indow ..................... .. 70
Heated seats .. .. .. .. . .. .... .... .. .. . 71
Heated washer jets Wiper and washer system .... ... .. .. . 54
Hea ting .... .. .. .. .... ............. . 67
Hig h beam . . . . . . . . . . . . . . . . . . . . . . 48, 50
Hig h voltage warning label .... ... .. .. 222
Hill Descent Assist . .. .. .. ...... .... .. 84
Hill ho ld assist
Start ing on hills .. ................. . 75
Homelin k unive rsal remote con trol . .... 88
Hood Open ing .. .. .. .. .... ............. 164
Re lease leve r .. .. ... ............ .. 164
Hor n .... .. .. .. .. .. ............... .. 8
How many airbags does my vehicle have? 114
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