2013 AUDI TT cooling

@ For the sake of the environment
- Before changing your oil, first make sure
you know where you can properly dispose of the used oil.
- 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 drains.
- 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
qu ires little at tention.
The cooling system has been filled at the fac ­
tory with a permanent coolant which does not n eed to be changed. The coolant consists of a
mixture of wa ter and the man ufacturer's g ly ­
col-based coolan t addi tive Gl3 ant ifree ze
with ant icorrosion add itives (50% for USA
models; 60% for Canadian models) . This mix­
ture both assures the necessary frost protec ­
tion and protects metal components in the
engine's cooling system from corrosion and
scaling. It also raises the boiling po int of the
coolant.
Do not reduce the concentration of the coo l­
ant in the summer by adding plain water.
The
proportion of coolant add itive must be at
lea st 50°/4 but not more than 60°/4
to ma in­
tain antifreeze protection and cooling efficien­ cy. If the coolant frost pro tect io n is too low,
the coolant cou ld freeze and dam age the veh i­
cle heating and eng ine cooling system.
For year-round driving, antifreeze is added at
the facto ry for temperatures down to:
- -31°F( -35°C)USA
- -40 °F ( -40 °C) Canada.
Checkin g and fillin g 187
A WARNING
Before you c heck anything in the engine
compartment, always read and heed all
W ARNI NGS~ &.
in Working in the engine
comportment on page 180.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
your v ehicle is sufficient to meet the cli­
mate conditions. This is especia lly impo r­
t an t if you live in a region where t he win­
t er is ex treme ly cold. If ne cessary, in­
cr ease t he p ro portion of coo lant add itive
to 60%.
- Whe n adding cool ant additive to yo ur
c ooling sys tem, remember:
- We recommend us ing on ly coolant ad­
d itive Gl2++ or Gl3 (check the labe l)
for your veh icle. This coolant additive is
ava ilable at autho rized Aud i dea le rs.
Othe r types of antifree ze can sig nifi­
cantly reduce cor ros io n protec tion. The
res ulting co rrosion can cause a loss of
coolant an d serio us en gine damage.
- Do not add any type of rad iator le ak seal­
ant to yo ur vehicle 's eng ine coolant .
Adding radiator repair flu id may adverse­
ly affect the function and performance of
your cooling system and co uld resu lt in
damage not covered by you r New Ve hicle
Limited War ranty.
Checking the engine coolant level
The engine coolant level con be checked with
a quick glance.
Fig. 138 Eng ine compa rtment : cove r on t he coola nt
expansio n tank

188 Checking and filling
Before you check anything in the engine com­
partment,
alwa ys r ea d and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 180.
• Park your vehicle on a level surface.
• Switch the ignition off.
• Read the coolant level at the coolant expan­
s ion tank ¢
page 182, fig . 134. With a cold
engine, it must be above the "min" mark .
With a hot engine, it ca n be a little above
the indicated range .
The location of the coolant expans ion tank
can be seen in the engine compartment illus­
tration
¢ page 182.
To obtain an accurate read ing, the engine
must be switched off.
The expansion tank in yo ur vehicle is equipped
with an e lectric coolant level sensor .
When the coo lant level is too low, the warning
light in the A uto- Check System ¢
page 16 will
illuminate until yo u add coo lant and the level
has been restored to normal. Even though
there is an electric coo lant level sensor, we
still recommend you check the coolant leve l
from time to time .
Coolant loss
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 author ized Audi dealer. It is not
enough merely to add coolant .
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheat ing.
(D Note
Do not add any type of radiator lea k seal­
ant to your vehicle's eng ine coolant. Add­
ing radiator repair f luid may adversely af­
fect the function and performance of your
cooling system and could res ult in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the engine com­
partment,
always read and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 180 .
• Turn off the engine.
• Let the engine cool down.
• Place a thick rag over t he coo lant expansion
tank
¢ page 187, fig . 138 a nd carefully
tw ist the cap counter-clockwise ¢&_ .
• Add coo la nt.
• Twis t the cap on aga in
t ightly.
Replacement engine coolant must conform to
exact spec ificat ions ¢
page 18 7, Coolant.
Even in a n emerge ncy, if coolant add i-
t ive G1 2++, G12+ or G12 is not ava ilable , do
not use a d iffe ren t addit ive. Use plain water
instead unti l you can get the cor rect additive
and can restore the correct ratio . This sho uld
be done as soon as possible .
If you have los t a considerab le amount o f
coolant , then you sho uld add cold ant ifreeze
and co ld wate r on ly w hen the engine is cold.
Alw ays use
new engine coo la nt whe n refilling .
Do not fill coola nt above the "MAX" mark. Ex­
cess coola nt wi ll be fo rced o ut through the
pressure relief valve in t he cap w hen the en­
gine becomes hot.
,&. WARNING ~ -
- T he cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by followi ng
these steps.
- T urn off the engine and allow it to coo l
down.
- Protect yo ur face, hands and arms from
escaping fluid and steam by covering
the cap w ith a large, t hick rag.
- T urn the cap s lowly a nd ve ry carefully
in a counter-clo ckwise direction while
applying light, downward pres sure on
the top of the cap.

A
A/C operation . . . . . . . . . . . . . . . . . . . . . . . 69
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 245
Acoust ic park assist . . . . . . . . . . . . . . . . . . 78
Adapt ive light .. ........... .. .. .. .... 43
defect ive . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Adding Eng ine coolant .............. .... . .
E ng ine oi l .. ............. .... .. .. .
W indshield washer fl uid ... .. .. .. .. .
Addit ional accessories .... .. .. .. .. .. .
Additives Engine oil .. .... .. .... ... .. .. .. .. . 188
185
194
245
185
Ad justab le steer ing colum n .. .. .. .. .. .. 7 1
Adjusting front seats ....... .. .. .. .. .. 54
Ad justing steering co lumn ... .. .. .. .. .. 71
Ad just ing the seats ............. ... ... 55
Advanced Airbag System Chi ldren . .. ............. .... .. .. .
Components ............. .... .. .. .
Front airbags ............... ... .. .
H ow the components work together ..
Mo nitor ing . .. ........... .. .. .. .. . 131
115
113
116
1 19
Weight-sens ing mat ...... .. .. .. .. . 13 1
Airbag War ning/ indicator lights . ...... ... ... 15
Ai rbag system . . . . . . . . . . . . . . . . . 108, 127
Care . .. .. .. .. .. ........... .. .. ... 122
C hi ld restra ints ........... .... .. .. . 132
Components (front airbags) . . . . . . . . . 115
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 110
D isposal . . . . . . . . . . . . . . . . . . . . . . . . . 122
Fr ont airbag s ............ .... .. .. .
H ow do the front a irbags wo rk? . .. .. .
H ow many airbags does my vehi cle
have? ... .. .. .. ... . .... ... .. .. .. .
Important safety instructions on the knee airbag system ....... .. .. .. .. .
Important things to know .. .. .. .. .. .
Indicator light .. ...... ... .... .. .. . 1
12
1 17
115 125
108 119
Knee airbags . . . . . . . . . . . . . . . . . . . . . . 123
Mo nitor ing .... ........... ... ... .. 119
P ASSENG ER AIR BAG OFF light .. .. .. . 119
Repa irs .. .. ............. .... .. .. .
Side airbags .. ........... .. .. .. .. .
When must the system be inspected? . 12
2
126 1 19
Inde x 247
All- wheel drive . ..... . .. .. ..... ... . .
Winter tires ... .... . ... ...... ... . .
Alloy w heels .. .. .. ................ .
Alternator lSS
211 169
refer to Generator .. . ... .... ... .. .. . 16
Anti-freeze
refer to Engine cooling system ... .. .. 187
A nti- lock b rake system
W arning/ind icator lights ........ .. .. . 18
Anti -lock braking system ............. 150
Anti-slip reg ulation
150
Ant i-theft systems
An ti- theft a la rm system ........ .. .. . 38
El ectronic immob ilizer .......... .... . 33
Ashtray .......... .. ..... ........... 62
Aste risk
What does it mean when something is marked w it h an aster isk? . . . . . . . . . . . . . . 6
A udi magnet ic r ide . . . . . . . . . . . . . . . 2 1, 78
Desc ription . . . . . . . . . . . . . . . . . . . . . . . . 78
Indicator light ..... . ... ...... ... .. . 21
Audi Se rv ice Repair Manuals and Litera-
tu re ..... .. .. .. .. .... . · · · · · · · · · · · ·
Automat ic be lt retractor .. ...... .... .
Automatic car wash
refer to Washing ... . ... .... ... .. . . 243
104
165
Automa tic transm iss ion . ......... .... . 80
D rivi ng No tes .. .. ............... .. . 82
Emergency prog ram . .. ..... ... .. .. . 85
Emergency re lease . .. .. ..... ... .. .. . 86
Ignit ion key safety lock . ..... ... .. .. . 72
K ick-down . . . . . . . . . . . . . . . . . . . . . . . . . 85
Launch Control Program .......... .. .
8S
Se lector lever lock ... ... .... ... .. .. . 81
Se lector lever positions
80
Tiptronic .. .. .. .... ... ....... ...... 84
T iptronic controls on the stee ring wheel 84
Auto Safety Hotline ................. . 98
Ave rage fuel mileage . . . . . . . . . . . . . . . . . 23
Average speed . . . . . . . . . . . . . . . . . . . . . . . 23
Avoid damaging the vehicle .... ... .. .. 160
B
Battery . . . . . . . . . . . . . . . . . . . . . . 190, 193
Charg ing . ... .... .. . .. .. ..... ... .. 193
Checking battery acid level ........ .. 193
•
•

Infant seats . ..... .... ... .. .. .. ... 135
L A T CH syst em . . . . . . . . . . . . . . . . . . . . . 146
Safety instructions ..... ... .. .. .. .. . 133
Ch ild seats
L owe r anchorages ........ .. .. .. .. . 14 4
C igarette lighter . . . . . . . . . . . . . . . . . . . . . 63
C lea ning
A lcantara (synthet ic suede) . .. .. .. .. . 173
Engine compartment ...... .. .. .. .. . 174
Exhaust tail p ipes ......... .. .. .. .. . 170
Fabrics and fabr ic coverings .. .. ... .. 171
Instrumen t panel ...... ...... .... .. 171
I nterior . . . . . . . . . . . . . . . . . . . . . . . . . . 170
L eathe r . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3
M atte fin is h pai nt ........ .. .. .. .. . 166
N avigation display ..... ... .. .. .. .. . 170
P lastic and v inyl .. ..... ... .. .. .. ... 168
P lastic pa rts . ... .. .... ... .. .. .. ... 171
Radio disp lay ............ .... .. ... 170
Safety belts . . . . . . . . . . . . . . . . . . . . . . 17 4
Trim str ips . .. ... .. ... ... .. .. .. ... 168
C leaning and protection .. ... .. .. .. .. . 164
Climate controls . . . . . . . . . . . . . . . . . . . . . 66
A/C operation . . . . . . . . . . . . . . . . . . . . . . 69
A ir d ist ribution ........... .... .. .. .. 6 8
A ir rec ircula tion mode .. ... .. .. .. .. .. 69
Automatic mode . . . . . . . . . . . . . . . . . . . 69
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Defrost .. .. .. ........... .. .. .. .... 69
Economical use . . . . . . . . . . . . . . . . . . . . 69
Fa n ..... .. ................. .. .... 67
H eated seats ............... ... ... . 70
H eating . ... ... .. .. ...... .. .. .. .. .. 66
P oll utant fi lter ........... .. .. .. .... 66
R ear w indow defogger . . . . . . . . . . . . . . . 70
Sw itch ing on and off ...... .. .. .. .. .. 6 7
Temperatu re . .... ..... ... .. .. .. .... 67
Venti lation ... .... .... ... .. .. .. .... 66
C lock . .. .. .. .......... ... .... .. .. .. 11
Clutch overheating . . . . . . . . . . . . . . . . . . . 85
C lutch pedal
I ndicator light . . . . . . . . . . . . . . . . . . . . . 17
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . 65
Cold tire inflat ion pressure ... .. .. .. .. . 200
Com ing home ............. .... .. .... 43
Compass m irror ........ .... ... ... ... 52
Comp liance .. ... .. ..... ... .. .. .. ... 246
Inde x 249
Consumer Information . . . . . . . . . . . 98, 2 43
Contacting NHTSA ................. .. 98
Controls and displays . . . . . . . . . . . . . . . . . . 8
Convenie nce close/open feature
Windows ... .. .... . ... ...... ... .. . 40
Convertible child saf ety seats
Conve rtib le loc king retractor 136
Activating . . . . . . . . . . . . . . . . . . . . . . . . 142
Deact ivating . .. .. .... ............. 143
U sing to secure a child safety seat 1 .40, 142
Cooling system . . . . . . . . . . . . . . . . . . . . . 187
Expansion tank . . . . . . . . . . . . . . . . . . . . 187
C o rnering ligh t .. ...... ............. . 43
C ruise contro l . . . . . . . . . . . . . . . . . . . . . . . 76
Changi ng speed .................. .. 77
Pres ett ing your speed ............. .. 77
Switch ing off .. .. .... ........... .. . 77
Swi tching on . . . . . . . . . . . . . . . . . . . . . . . 76
Warning/ind ic a tor lights .......... .. . 21
Cup holder ........ .. ................ 62
C ur rent fuel mileage 23
D
Damping
refer to Audi magnetic ride ... ... .. .. . 78
Data .......... ... .. ............... 240
Data recorder . .. .. ... ............ .. 150
Date d isp lay . . . . . . . . . . . . . . . . . . . . . . . . 11
Daytime runn ing lights .............. .. 42
Declaration of compliance Ce ll phone package . . . . . . . . . . . . . . . . 246
E lectronic immob ilizer .............. 246
Homelink ® uni ve rsal remote control .. 246
Remote contro l key . . . . . . . . . . . . . . . . 246
def What does this mean when it appears in
th e tr ip odometer display? ...... .. .. . 12
De fec tive light bu lb wa rning ... ... .. .. . 20
Defrost ing the windows ............... 69
Dete rm ining correct load limit . ... .. .. 205
Digi tal clo ck . . . . . . . . . . . . . . . . . . . . . . . . 11
Digital compass . . . . . . . . . . . . . . . . . . . . . 52
Dime nsions ... .... .. . .. .. ..... ... .. 239
D imm ing the rearv iew m irror ........ .. 47
Dipst ick
Reading the dipst ic k properly ...... .. 185
•
•

250 Index
Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Driver information system Boost .......................... .. 28
E ng ine oi l tempe ratu re d isplay .. .. .... 26
Engine oil temperatu re indicator ...... 28
Menu button . . . . . . . . . . . . . . . . . . . . . . 25
Menu display . . . . . . . . . . . . . . . . . . . . . . 24
Open door or front lid warning . . . . . . . . 22
Outside temperature display .. .. .. .. . . 22
Red symbols ................. ...... 13
Service interval display ...... .. .. .. .. 28
Setting .. .. ... .... ...... ... ... .. .. 26
Sound system display . . . . . . . . . . . . . . . 22
Trip computer. . . . . . . . . . . . . . . . . . . . . . 23
ye llow symbo ls ......... .. .. .. .. .. .. 13
Driver seat
refer to Seat ing pos ition . ........ .. .. 91
Driving Run-flat tires . ........... .... .... . 218
Driving safely . . . . . . . . . . . . . . . . . . . . . . . 90
Driving through water ........ .. .. ... 160
Duplicate key .............. ... .... .. 32
Dust filter . ... .............. .. .. .. .. 67
E
Efficiency program . . . . . . . . . . . . . . . . . . . 26
Fuel economy messages ..... .. .. .... 27
Memory levels . . . . . . . . . . . . . . . . . . . . . 23
Other equipment ........... .. .. .. .. 27
Elapsed time . . . . . . . . . . . . . . . . . . . . . . . . 23
Electro-mechanical power assist . . . 17, 155
E lectronic diffe rent ial lock (EDL) .. .. ... 150
Warn ing/ indicator lights ....... .. .... 18
Electronic immobilizer . . . . . . . . . . . . 12, 33
Electronic power control EPC warning/indicator light . ..... .. .. 19
E lect ronic speed limiter . . . . . . . . . . . . . . . 31
Electronic Stability Control (ESC) Warning/indicator lights ..... .. .. .. . . 17
Electronic Stabilization Control (ESC) . .. 150
E mergency flasher . . . . . . . . . . . . . . . . . . . 45
Warn ing/ indicator l ights ... .... .... .. 21
Emergency locking ............. .... .. 37
Emergency operation
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
E mergency starting ........ .... ..... 232 Emergency towing
.............. .... 234
Energy management . ............ ... 156
Battery power ................ .... 157
Driver notification ............. .. .. 157
Engine Checking and filling locations .... .. .. 182
Coolant . .. ... ... .. .......... ... .. 187
Hood . .... .. .. .. ............. .. .. 180
Starting . . . . . . . . . . . . . . . . . . . . . . 71, 72
Starting with jumper cables ... .. .. .. 232
Stopping .. .... .. .. .............. .. 73
Engine compartment ......... ... .. .. 182
Safety instructions ... .......... .. .. 180
Working in the eng ine compartment 180
Engine coolant system Malfunction ..... ... ........... ... . 16
Radiator fan . .. .. ..... ..... ... .. .. 189
Temperature gauge ....... ..... .. .. . 11
Engine cooling system ........... .... 187
Adding coolant ................ .... 188
Checking the engine coolant level ..... 187
Engine data ..... .. ................ . 240
Engine hood
Closing . .. .. .. .. ............... .. 180
How to release the hood .......... .. 180
Engine oil ...... .. .. ..... ... ... .. .. 182
Adding . ...... .. .. ..... ... ... .. .. 185
Additives .. .. .. .. .. ... ........ .... 185
Changi ng ... .. .. ............. .. .. 186
Checking the engine oil leve l ..... .... 185
Indications and conditions requiring ex-
tra checking ..... ................ . 185
Oil consumption . ................. . 184
Oil grades . ................... .... 182
Recommended oil check intervals . .. .. 185
Specification and viscosity . ...... .. .. 182
Temperature display ........ ... .. .. . 26
Engine oil level .... ................ .. 19
Engine oil pressu re (ma lfunction) .... .. . 16
Engine oil sensor defective . . . . . . . . . . . . 19
Engine oil temperature indicator ........ 28
Engine speed limitation . ......... .. .. . 19
Environment Break-in period .................... 159
Catalytic converter ....... ...... .. .. 160
Dispos ing of your veh icle battery . . . . . 191
Driving at high speeds . ...... ... .. .. 161