2015 AUDI TT ROADSTER heating

158 Vehicle care and cleaning
- Never remove snow or ice from win­
dows 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 film .
-Trim
-To reduce the risk of damage, do not
treat the trim around the panorama
sunroof with paint polish.
- Decorative decals
-To reduce the risk of damage, do not
use any rough powder or abrasive
cleaning products.
- To reduce the risk of damage , do not
polish decorative parts that have a
matte finish.
- 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 buck­les, have them replaced by an author­
i z ed Audi dealer or a qualified work­
shop.
- Textiles/Vinyl/Alcantara
- Never treat Vinyl/Alcantara with leath-
er care products , solvents, floor polish ,
shoe polish , stain remover or similar
products.
- To avoid damage, have stubborn stains
removed by an authorized Audi dealer
or a qualified workshop.
- 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, stain 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.
@ Tips
- Insects are easier to remove from paint
that has been freshly waxed.

@ For the sake of the environment
-Before changing your oil, first make sure
you know where you can properly dispose
of the used o il.
- Always dispose of used engine oil proper­
l y. Do not dump it on garden soi l, wood­
ed areas, into open streams or down
sewage dra ins.
- Recycle used engine oil by taking it to a
used engine oil collection facility in your
area, or contact a service station .
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro­ tects the engine from freezing in the winter.
The cooling system is sea led and generally re­
q uir es lit tle atten tion .
The cooling system has been filled at the fac ­
tory with a pe rmanent coo lant which does not
need to be c hanged. The coolant consists of a
mixture o f spec ial ly conditioned water and the
manuf acturer 's glyco l-basedcoolan t addi -
tiv e G13 antifreeze with ant icorros ion addi ­
tives (50% for USA models ; 60% for Canadian
mod els) . This mixture both assures the neces­
sary
frost protection and p rotects metal com ­
ponents in the engine's coo ling system from
corrosion and scaling . It a lso raises the boil­
i ng point of the coolant .
Do not reduce the concentration o f the coo l­
ant in the summer by adding plain water.
The
proportion of coolant add it ive must be at
l e a st 50 % but not mor e than 60 %
to main­
tain antifreeze protection and coo ling efficien­
cy .
If the coolant frost protect io n is too low,
the coolant cou ld free ze and dam age the veh i­
cle heating and eng ine cooling system.
For yea r-round driving, antifreeze is added at
the fac to ry for tempera tures down to:
-- 31°F( -35°C)USA
- -40 °F ( -40 °C) Canada.
Checkin g and fillin g 171
If you must add coo lant, use a mixture of wa ­
ter and coolant additive . Mix ing the coo lant
additive with distilled water is recommended.
_& WARNING
Before you c heck anything in the engine
compartment, always read and heed a ll
WARNINGS
c> .& in Working in the engine
comportment on page 164.
Q) Note
- Before winter sets in, have the coo lant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­ mate condi tions. This is especi ally impor­
tan t if you live i n a region wher e th e win­
ter is ex treme ly co ld . If necessary, i n­
crease t he p ropo rtion of coo lant add itive
to 60% .
- Whe n ad ding coolant additive t o yo ur
c ooling sys tem, reme mbe r:
- We recommend using on ly coolant ad­
d itive G12++ or G13 for your vehicle .
This coolant additive is availab le at au­
thor ized Audi dealers . O ther types of
a ntifreeze can s ignifica ntly reduc e cor­
rosion prote ction. The result ing cor ro­
sion can cau se a loss o f coolan t and se­
rio us engine d amage .
- Do not add any ty pe of rad iator leak seal­
a nt to yo ur vehicle 's engine c oolant .
A dd ing radia tor repair fl uid may adverse ­
ly affect the f unction and pe rformance of
your coolin g system and co uld resu lt in
damage not covered by your New Ve hicle
L imited Warranty.
-
•
•

172 Checking and filling
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
F ig. 132 Eng ine compartme nt: cover on the coo lant
expansion tank
Before you check anything in the engine com­
partment,
a lway s read and he ed a ll WARN­
ING S o .A in Working in the engine compart­
ment on page 164.
., Park your vehicle on a level surface.
., Switch the ign ition
off .
., Read the coolant level at the coolant expan­
sion tank
opage 166, fig . 128. With a cold
engi ne, it must be above the "min" mark.
With a hot engine, it can be a l ittle above
the indicated range.
The location of the coolant expans ion tank
can be seen in the engine compartment illus­
tration
o page 166.
To obtain an accurate read ing, the eng ine
must be sw itched
off.
The expans ion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System
opage 17will
illum inate until you add coolant and the level
has been restored to normal. Even thoug h
there is an electric coolant level sensor, we
still recommend you check the coolant leve l
from time to t ime.
Coolant lo ss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately by your authorized Audi dea
ler .
It is not
enough merely to add coo lant .
In a
seal ed system, losses can occu r on ly if
the boi ling po int o f the coo lan t is exceeded as
a res ult of overheating.
(D Note
Do n ot add any type o f radiator leak se al­
ant to your veh icle's engine coo lant. Add ­
i ng radiator repa ir fl uid may adverse ly af ­
fect the functio n and performance of you r
cooling system and could result in damage
not cove red by your New Veh icle l imited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the engine com ­
partment,
a lways read and heed all WARN­
INGS o .A in Working in the engine compart­
ment on page 164.
Req uirement: There m ust be a res idual
amount of coo lant in the expansio n tank
o (D .
., Tur n off the engi ne .
., le t t he eng ine cool down.
., Place a thick rag ove r the coolant expansion
tank
o page 172, fig. 132 and carefully
twist the cap counter-clockwise o _A .
., Add coolant m ixed in the correct ratio
o page 171, Coolant up to the MAX mark­
ing.
.. Make sure that the flu id level remains sta-
b le. Add more coo lant if necessary.
., Twi st the cap o n aga in
tightly.
Replacement engine coo lant must conform to
exact spec ificat ions
o page 171, Coolant .
We recommend using only coolant addit ive
Gl2++, Gl3 or in an emergency Gl2+. Do
not
use a different add itive . In an emergency use
plain water until you can get the co rrect addi­
t ive and can resto re the correct ratio. This
sho uld be done as soon as poss ib le.

Fuse Location, Instrument Panel left
0
Fig. 161 Fuse carrier behind the instrument panel end
face, cover removed
Some of the eq u i prnent items listed a re op­
tional or only available on certain model con­
f igurations.
Note that the following table is accurate at
the time of going to press and is subject to
change. In the event of d iscrepancies, the la­
bel on the in side of the cover always takes
precedence .
The power seats are protected by circuit
breakers ,
which automatically reset after a
few seconds after the overload has been rem­
ed ied.
No. Equipment Amps
Engine relay, fuel tank cont ro l
1
unit, A irbag Off light, light
10 switch (sw itch illumi nation), di-
agnostic connector
2
ABS, ASR, ESC, brake light
5 switch
3 AFS headlight (left) 5
No.
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 22
23
Fuses and bulbs 213
Equipment Amps
Oil level sensor (extended main-
tenance interval)
(WIV), t ir e
press ure monitoring system,
sw itch for Electron ic Stabiliza-
5 tion Control (ESC), AFS head-
lights (control unit), A/C system
(pressure sensor), backup light
sw itch
Automatic headlight range con- trol, AFS headlight (right) /
5/10
manual headlight range con-
trol, halogen headlights
Control unit for CAN data trans-
fer (gateway), electrornechani-
5 cal steering, automatic trans-
miss ion shift gate
Acoustic Park Assist, automatic
d ip ping interior rear
view rnir-
ror, garage door opener, heata-
5 ble windshield washer nozzles,
washer pump, w ind deflector
relay (Roadster)
H aldex clutch/Ha ldex clutch
5/10 (TTS)
Control un it Audi magnetic ride
5
A irbag contro l unit 5
Mass airflow sensor, crankcase 5/10
heating
Door control unit (central lock -
10 ing driver/passenger)
Diagnostic connector
10
Rain sensor, automatic trans-
5 miss ion sh ift gate
Roof light (interior lighting)
5
A/C system (contro l unit) 10
Tire pressure monitoring sys -
5 tern (control un it)
Not used
Not used
Not used
Fuel injectors (gasoline eng ine)
10
Wind deflector (Roadster) 30
Horn 20

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

_______________________________ ___:I~n ~d ~e:.::x 231
Temperature ... ... .... ... .. .. .. .... 68
Venti lation ..... .. .... ... .. .. .. .... 67
C lock ..... ................... .. ....
11
Clutch overheating . . . . . . . . . . . . . . . . . . . 86
Cold tire inflat ion pressure ... .. .. .. .. .
184
Com ing home .............. ... ... ... 49
Compass m irror . ....... ... .. .. .. .. .. 58
Comp lian ce .. ............. .. .. .. ... 228
Consumer Info rmat ion . . . . . . . . . . . 98, 225
Contact ing NH TSA . ..... ... .. .. .. .. .. 98
Controls Cleaning . .. .. ........... .. .. .. ...
156
Controls and d isp lays ....... .. .. .. .. .. . 8
Convenience close/open feat ure
Powe r top . . . . . . . . . . . . . . . . . . . . . . . . .
43
Windows . ..... ...... ... .. .. .. .... 40
Conve rtible c hild safety sea ts .. .. .. .. .
134
Convertible locking retractor
Activating . . . . . . . . . . . . . . . . . . . . . . . .
139
Deactivating ................ .... .. 139
Using to secure a ch ild safety seat 137, 139
Convertible top . ........... .. .. .. .. .. 41
Au tomatic convertible top .. .. .. .. .. .. 43
Emergency operation ........... .... . 44
Ge ne ral i nfo rmation .......... ... ...
41
manual conve rtib le top .. ... . .. ... ... 42
War ning/ indic to r l igh ts .... .. .. .. .. ..
1 7
W ind deflecto r ........... .... .. .. .. 44
Cooling system . . . . . . . . . . . . . . . . . . . . .
1 71
Expansion ta nk ... ... ... .. .. .. .. .. . 172
Cornering light ............ .... .. .. .. 49
Cruise control . . . . . . . . . . . . . . . . . . . . . . . 77
Changing spee d . . . . . . . . . . . . . . . . . . . . 7 8
Presetting your speed . . . . . . . . . . . . . . . 78
Sw itching
off .... ..... ... .. .. .. .... 78
Sw itching on . . . . . . . . . . . . . . . . . . . . . . . 77
War ning/ indicator lights ... .. .. .. .. ..
21
Cup holder . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Current fuel m ileage
23
D
Damping
refer to Audi magnetic ride ... .. .. .. .. 79
D ata recorder . ..... .... ... .. .. .. ... 14 1
Date display . . . . . . . . . . . . . . . . . . . . . . . . 11
Daytime running lights .... .. .. .. .. .. .. 48
Decla rat ion of compliance
Ce ll phone package .. ... .... ... .. .. 228
E lectronic immob ilizer .. ..... ... .. .. 228
Homelink universal remote control . .. 228
Remo te contro l key ... ............. 228
Decorative deca ls
Cleaning . ... .... ... .. .. ..... ... ..
156
Decorative pa rts/tr im
Cleaning .. .. .. .. .... .............
156
def
What does this mea n when it appears in
the tr ip odometer display? ...........
12
Defective light bulb warning . ....... .. . 20
Defrost ing the w indows . .... ..... .. .. . 70
Determ ining correct load limit ........
189
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . 11
D . · l 1g1ta compass . . . . . . . . . . . . . . . . . . . . . 58
Dimens ions . .. .. .. .... ............. 223
D imming the rearview m irror .. ... .. .. . 53
D ipst ick
Reading the d ipst ick properly ........
169
Displays
Cleaning
156
Distance ... .. .. .... . ... ...... ... .. . 23
Driver informat io n system
Boost ........ .. .. ... ....... ...... 26
E ngine oi l tempera ture .. ..... .. .. .. . 26
Menu but to n .. .. ... ..... ..... .. .. . 25
Menu disp lay . . . . . . . . . . . . . . . . . . . . . . 24
Open door or front lid warning ... .. .. . 22
Outsid e temperature disp lay . . . . . . . . . . 22
Serv ice inte rval display . . . . . . . . . . . . . . 28
Se tting ... .. .. .. .... ...... ....... . 25
Sound system display ... .... ... .. .. .
22
T' np compute r .. .. .. ................ 23
Dr iver seat
refer to Seating position . ..... .. .. .. . 92
Drivi ng
Run -flat t ires . ..... . .. .. ..... ... .. 20 2
Drivi ng safely ...... ........... ......
91
Driving throug h wate r .. .. .. .. ... .. .. 150
D upli cate key . .. .. .... ... .... ...... . 32
Dus t fil ter . . . . . . . . . . . . . . . . . . . . . . . . . . 68
•
•

232 Index
E
Efficiency program ....... .. .. .. .... .. 27
F ue l economy messages ... .. .. .... .. 27
Memory levels . . . . . . . . . . . . . . . . . . . . . 23
Other equipment .. ......... .. .. .. .. 2 7
E lapsed time ... .... ....... .. .. .. .. .. 23
Electro -mechanical power assist . . . 17 , 145
Elect ronic differential lock (EDL) . . . . . . . 141
Warn ing/ indicato r lights ... .. .. .... .. 18
E lect roni c immobili ze r . . . . . . . . . . . . 12, 33
Electronic power co ntrol
EPC warning/ind icator light .. .. .. .... 19
Electronic speed limiter . . . . . . . . . . . . . . . 30
E lect ron ic S tabilization Control ( ESC) .. . 141
War ning/ indica tor l ights . .. .. .. .. .. .. 17
E mergency flasher . . . . . . . . . . . . . . . . . . . 51
War ning/ indicator lights . ...... .. .. .. 21
Emergency locking . . . . . . . . . . . . . . . . . . . 3 7
E mergency opera tion
Conve rtible top .......... .. .. .. .. .. 44
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
E mergency sta rting .. ... ... .. .. .. .. . 216
Emergency towing ......... .. .. .. .. . 218
Ene rgy management ....... .. .. .. .. . 14 6
B att ery power . . . . . . . . . . . . . . . . . . . . 148
D river notification . . . . . . . . . . . . . . . . . 148
Eng ine
C he ckin g and fill ing locations . .. .. .. . 166
Coolan t .. .. ............. .... .. .. . 17 1
D ata .... .. ... ... .... ... .. .. .... . 224
Hood . ..... ... . ...... ... .. .. .... . 164
Starting . . . . . . . . . . . . . . . . . . . . . . 72, 73
Starting with jumper cab les .. .. .... . 216
Stopping . ................. ...... .. 74
E ng ine compartmen t ....... .. .. .. .. . 166
Safety instructions ... ... .. .. .. .... . 164
Working in the engine compa rtment .. 164
E ng ine cooling system ...... .. .. .. .. . 17 1
A dding coolant ........... .. ...... . 17 2
Chec king the eng ine coolan t leve l .. .. . 172
M alfunc tion . . . . . . . . . . . . . . . . . . . . . . . 17
Radiato r fan . .. .. ..... ... .. .. .... . 173
Temperature ga uge .. ... .. .. .. .... .. 11
E ng ine hood
C losing .. ............... .... .... . 164
H ow to release the hood ... .. .. .... . 164 E
ngine oi l .. .... .. ... .. ..... .... . .. 166
Adding ... .... .. .. ... ..... ... .. .. 169
Additives . ... .. .. ... .. ..... ... .. .. 169
Changi ng ..... .. ............. .... 170
Checking the engine oil level ..... .... 169
Indications and conditions requir ing ex -
tra checking ... .. ... .. .. ... ..... .. 169
Oil consumpt io n .. .......... ...... . 168
Oil g rades . .. .... ............. .. .. 166
Recommende d oi l c he ck interv als . .. .. 169
Spec ifi cat ion an d viscosity .. ... .. .. .. 166
T emperature display . .. ..... .... . .. . 26
En gine o il level .. .. ................ .. 19
Engine oi l pressure (ma lfunction) .. .. .. . 16
En gine oi l sensor defective . . . . . . . . . . . . 20
Engine oil temperature indicator ........ 26
Engine speed limitation .. ..... ... .. .. . 19
En vironment
Br eak-in per io d ... ............. .. .. 149
Catalytic converter . .. .. ..... ... .. .. 150
Disposing of your veh icle ba ttery ... .. 175
Driving at high speeds . . . . . . . . . . . . . . 152
Driving to minimi ze po llution and noise 151
Fuel ...... .... .. .. ............... 162
Fuel economy .... ................. 151
Leakage from your vehicle ..... ... ... 164
L etting the vehicle stand a nd warm up . 152
Proper disposal of d rained brak e flu id . 174
P roper d isposal of d rained eng ine cool-
an t ...... .... .. ................. 172
Proper disposal of d rained eng ine
oi l . . . . . . . . . . . . . . . . . . . . . . . . . 169, 170
Recycling used engine oil ..... ... .. .. 169
Un leaded fuel .. .. ............. .. .. 160
What shou ld I do with an o ld battery? . 175
EP C
refer to Elect ronic power co ntrol ... .. . 19
E SC (Electronic Stab ilizat io n Control)
Warning/ind icator lights ........ .. .. . 17
Event Data Recorder (EDR) ........ .... 141
E xhaust tail pipes
Cleaning . ..... .. ... .. ..... .... . .. 156
E xpansion tank . . . . . . . . . . . . . . . . . . . . . 172
Exterior m irrors
Adjust ing . .... .. ............. .... . 52
Dimming ...... .. ..... ....... ... .. . 53
Heating ....... .. ..... ....... ... .. . 52