cooling AUDI TT COUPE 2009 Owners Manual

Child Safety . . . . . . . . . . . . . . . . . . . . 157
Important things to know . . . . . . . 157
Child safe ty seats . . . . . . . . . . . . . . 162
Instal ling a ch ild safety sea t . . . . . 168
Addi tional Inform ation . . . . . . . . . . 171
Lower anchorages and tether for
chi ldren (LATCH) ............... .
172
t
Vehicle operation . . . . . . . . 181
Intelligent technology . . . . . . . . . . 182
Notice about data recorded by
vehicle control modules . . . . . . . . 182
Electronic Stabilization Program
(ESP) . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Rear spoiler . . . . . . . . . . . . . . . . . . . 185
B raking . . . . . . . . . . . . . . . . . . . . . . .
186
Electro-mechanical power assist . 188
Driving with your quattro® . . . . . . 189
Driving and environment . . . . . . 190
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . .
190
Ca tal ytic converter . . . . . . . . . . . . . 191
Avoid damaging the veh icle . . . . .
192
Operate your vehicle economically
and minimize pollution ........ .
Trailer towing ...........•......
192
194
Table of contents
Vehicle care . . . . . . . . . . . . . . . 197 Do-it-yourself service ... 253
C leaning and protection . . . . . . . 198 What do I do now? . ............ 264
General information . . . . . . . . . . . . 198
Care of exterior . . . . . . . . . . . . . . . . . 198
Care of interior . . . . . . . . . . . . . . . . . 205
Fue l supply and filling your fuel
tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Gasoline .................. •....
Fuel tank ..................... .
Checking and filling ... ..... ... .
Eng ine hood ........ .......... .
Engine compartment .......... .
Engine oil ........ ... ...... ... . .
E ngine cooling system ......... .
Brake fluid ... ... ...... .... •....
Battery ............ ......... .. .
W indshield /headlight washer
conta iner .. .... ... .... ... ..... .
Tires and whee ls .............. .
Tires ................... · · · · · · ·
T ire pressure monitoring system .
Run-flat tire s ....... ...... ..... .
2 11
2 12
2 16
216
218
219
224
22 7
228
233
234
234
253
258
Vehic le tool kit . . . . . . . . . . . . . . . . . . 264
Tire r epair . . . . . . . . . . . . . . . . . . . . . . 264
What should I be aware of when
changing a tire ?
268
Fuses and bulbs ....... ......... 274
Fuses ... .............. ... ... ... 274
Bulbs ...... ...... ..... ......... 278
Emergency situations . . . . . . . . . . 279
General . . . . . . . . . . . . . . . . . . . . . . . . 279
Starting by pus hing or towing . . . . 279
Starting with jumper cables . . . . . . 279
Use of jumpe r cables . . . . . . . . . . . . 280
Emergency towing with commercial
tow t ruck . . . . . . . . . . . . . . . . . . . . . .
282
Lifting vehicle . . . . . . . . . . . . . . . . . . 284
Technical data
General information 287
288
Explanation
of technical data . . . . 288
Veh ic le ident ification . . . . . . . . . . . . 288
Vehicle care I I irechnical data

Driver information system
Parking brake set
The parking brake warning light Brake /((D) (Canada models) illumi ­
nates when the parking brake is set. In addition , a warning tone will
sound after you have driven for longer than 3 seconds and faster
than 3 mph (5 km/h).
L1}. WARNING
• Always observe the warnings in => page 209, "Engine compart­
ment", before opening the engine hood and checking the brake
fluid.
• Driving with low brake fluid is a safety hazard! Stop the car and
get professional assistance.
• If the brake system warning/indicator light illuminates
together with the ABS warning/indicator light, then the ABS system is malfunctioning. The rear wheels could quickly lock up
when you apply the brakes. This could lead to loss of control and
your vehicle could slide! Drive carefully to the nearest authorized
Audi dealer and have the malfunction corrected. •
Engine cooling system malfunction ¾
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the _t symbol in the display flashes, then either the
engine coolant
temperature is too high, or the coolant level
is too low. In addition to the symbol, the following message
also appears in the display:
Switch off engine and check coolant level
-Pull off the road and stop the vehicle.
- Turn off the engine.
- Check coolant level
~ page 225.
-Add coolant if necessary ~ page 225.
-Continue driving only after the engine coolant
warning/indicator light goes out.
- Contact your authorized Audi dealer for assistance if
necessary .
If t he engine coolant lev el is correct, then th e radia tor fan may be
the cause of the malfunction.
If the gene rator warning/indicator light should also illuminate
=> page 18, then the fan belt may be damaged.
L1}. WARNING
• If your vehicle should break down for mechanical or other
reasons, park at a safe distance from moving traffic, turn off the
engine and turn on the hazard warning lights
=> page 57, "Emer­
gency flasher A" .
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment -you risk being scalded.
Wait until you can no longer see or hear steam or coolant escaping.
• The engine compartment of any vehicle is a dangerous area.
Before you perform any work in the engine compartment, turn off
the engine and allow it to cool. Follow the warning stickers
=> page 209, "Engine compartment" .
0 Note
Do not continue driving if the-~- symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine .•

Warm and cold
Climate controls
Controls
The air conditioning automatically maintains the selected
temperature in the vehicleinterior throughout each
se ason.
F ig. 76 C limate contro ls
We recommend the following setting:
- Rotate the knob~ fig. 76@ to the right to switch on the
ai r conditioning.
- Set the temperature to 72 °F (22 °C).
- Press the !AUTO
j ~ fig. 76 button.
Con tro ls and eq uip­
ment
W arm and cold
Using the previously recommended setting is the quickest way to
achieve a comfortable climate in the vehicle. This setting should
therefore only be changed when personal comfort levels or certa in
circumstances require it.
The climate controls are a combination of automatic heating and
ventilation systems and a cooling system which dehumidifies and cools the air inside the vehic le .
The climate controls automatically maintain a temperature once it has been set. The temperature of the air from the vents, fan speed
(air volume) and air dist ribu tion are a lso automatically adjus ted . The
system also takes into account strong sunshine so that manual
adjus tment is not necessary. So in almost all cases,
a ut omatic mode
offers the best conditions for the comfort of the occupants at all
times of the year~
page 88.
Ple ase not e:
In cooling mode, relative humidity in the interior is reduced. This
prevents the windows from fogging up .
When relative humidity and temperatures outside are high,
conden ­
s ate
can drip from the air conditioning evaporator and form a pool
of water under the vehicle . This is normal and not an indication of a
leak!
When outside temperatures are low, the fan does no t switch to a
higher speed until the coolant has reached an adequate tempera­
ture, with the exception of t he defrost setting .
When accelerating at wide-open throttle, the air conditioning compressor is temporarily switched off to maintain fu ll engine
power.
In order to ensure engine cooling under extreme engine loads, the
compressor is switched off if coolant temperatures climb too high ...
Vehicle care I I irechnical data

Warm and cold
Functions are set by turning the rotary knob or switched on and off
b y tap ping the buttons . The LED in the bu ttons illuminates when the
function is active .
Button(sl
Rotary knob G)
Rotary knob 0@
Rotary knob©
I- .;+ I
Pollutant filter Meaning
Temperature selection
Switch air conditioning
on/off Fan
Air distribution
Rear window de fogger
Heated seat* driver/pas­
senger side
Recirculation
-Switch on coo ling sys -
tem Page
=> page 86
=> page 87
=> page 87
=> page 88
=> page 89
=> page 90
=> page 88
=> page89
The pollutant filter (particle filter) ensures that contaminants in the
outside air (such as dus t or p ollen) are greatly reduced or stopped.
The air is also filtered in recirculation mode.
T he pollutan t fil te r element must be changed accord ing to the inter ­
vals 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 driv ing t he vehic le in
areas with heavi ly polluted outside air, the filter element should also
be changed in between the listed services .
& WARNING
For safety re ason s, it is impo rtant that all window s are free of i ce ,
snow, and condensat ion . Onl y then is good visibility ensured .
Plea se familiari ze your self with the correct operation of the air
conditioning and how to dehumidify /defrost the windows .
0 Note
• If you suspect that the climate controls have been damaged,
switch the system off to avoid damag ing it, and have it inspected by
an author ized Audi dealer.
• Audi climate control system repairs require special expertise and
t he proper tools. You shou ld contact an authorized Audi dealer in
the event o f malfunctions.
[ i ] Tips
• To avo id adverse ly affecting heating and cooling performance
and to prevent condensation on the windows, the air intake in front
of the windsh ield must be free of ice, snow, and leaves.
• The air coming from the vents and circulating through the entire
inter ior is extracted through the outlet slots in the side panels in the
luggage compartment. Make sure that the outlet slots are not
covered by clo th ing, etc.
• Climate control works most effectively if the windows are closed .
H owever, if the interior of a parked vehicle is extremely hot from the
sun's rays, briefly opening the windows can speed up the cooling
process. •
Setting temperature
Tur n th e rota ry kno b G) ~ page 85, fig. 7 6 to t he des ired
t e mperature sett ing .
~

Warm and cold
• In setting®, air flows on ly to the driver/passenger, vents 0 and
@ are open.
• In setting..(}, air flows only to the footwell, vents © are open.
• In setting~. air flows only to the w indows and the footwe ll,
vents
G) , 0 and © are open .
There are additiona l combinations (through intermediate settings)
available to adjust air distribution as needed.
[ i I Tip s
If the climate controls are runn ing in cooling mode, air should flow
mainly from vents
0 and @. To achieve sufficient cooling, you
should never close these vents comp letely. •
Defrost [@)
The windshield and si de w indows are defroste d or cleared
of condensation as q uickly as possible.
- To tu rn on t he de fogger/defros ter, press th e [®] butto n
=>
page 85, fig . 76.
- To turn the defogger/defroster off, press the [®]button
again, or the
[AU TO I button.
Temperature is control led automatically. The maximum amount of
air flows mainly from vents 1
=> page 87.
A small amount o f air f lows from vents 2 -if they are open
=> page 87.
Pressing the[@] button switches off recircu lation mode. •
Automatic operation [AUTO]
Stan da rd operating mode at all times of the ye ar.
Turning on automati c operation
- Set the temperature you want.
- Press the
(AUTO ] button=> page 85, fig. 76.
Automatic operation ensures constant temperatures in the interior
and dehumidifies the air inside the vehic le. Air temperature,
vo lume, and distribution are controlled automatically to reach or
mainta in the desired interior temperature as quick ly as possible.
Fluctuations in exterior temperature and the effects of temperature
from the position of the sun are compensated for au tomatical ly . •
Manual air recirculation mode l~I
The recir culation mode prevents polluted outside air from
entering the vehicle in teri or.
Swit ching on air recircul ation
- Press the button !~I=> page 85, fig. 76 => &.
Switching off a ir r ecirculat ion
- Press the button !~I again, or
- Press th e
(AUTO I button, o r
- Press the(@] button .
In recirculation mode, air is drawn from the vehicle interior, filtered,
and recirculated . We recommend that you select recircu lation mode
briefly=> & under the follow ing conditions :
When driving through a tunne l or in a traffic jam so that exhaust
fumes and odors cannot enter the vehic le interior .
~

& WARNING
You shou ld not u se t he re circ ulati on mod e for an exte nd ed p eriod
si nce no fre sh air i s drawn in , and with the air conditioning
sw itc hed off the windows ca n fog up -thi s inc re a ses the r isk of an
acc ident !•
A/C operation [A C)
Switching on A /C
- Press the (AC) button~ page 85, fig. 76 .
Switching A /C off
- Press the (AC) button again.
T he cooling system is switched on during A/C operation -the
heating and ventilation system is controlled auto matica lly.
[ i J Tips
I f the LED in the switch stays on after A/C operation has been
switched off( = switching the A/C off), there is a fau lt in an air condi­
tioning component. P lease consult an authorized Audi dealer when
there is an operat ing prob lem. •
Using the climate controls economically
E conomical use of the climate c ontrols helps to save fuel.
When climate control is working in cooling mode, engine
performance is reduced and fuel consumption is affected.
To keep the t ime the air cond itioning is on as s hort as
poss ible, you s hould do the following:
Controls and equip ­
ment
W arm and cold
- If you would like to save fuel, swit ch the air conditioning
off .
- If you open the windows while driving, switch the air
conditioning off .
- If the veh icle is extremely hot due to the heat of the sun,
briefly open doors and windows.
'£> For th e sake of th e environm ent
When you save fuel, you reduce emissions from the vehicle. •
Rear window defogger [ffiJ
The rear window defogger clears the rear window of
condensati on.
- Press the QuJ bu tton~ page 85, fig. 76 to turn the rear
window defogger on and off.
The rear window defogger works on ly when the engine is running.
The indicator light in the button illuminates when the rear window defogger is turned on.
The rear window defogger is switched off automatica lly after 10 to
20 minutes, depending on the outside temperature .
At very low outside temperatures, the rear window defogger can be switched on continuously by pushing the
Qiil button for more than 2
seconds. This remains stored until the ignition is switched off. A
rear window defogger that was switched on also remains stored for
15 minutes after the ignition is switched off.
If the engine is restarted within these 15 minutes, the rear window
defogger is activated for 10 to 20 minutes, depending on outside
temperature . With a vehicle that is parked for a short time, the rear
window defogger does not need to be manually activated again. .,,_
I • •

___________________________________________ C_ h_e _c_ k_ i_n ...::g a....- a_n _d_ f_il _li _n --=g ------
•
Engine oil consumption
The engine in your vehicle depends on an adequate
am ount of oil to lubricate and c ool all of its moving parts.
In order to provide effective lubrication and cooling of internal
engine components, all internal combustion engines consume a
certain amount of oil. Oil consumption varies from engine to engine
and may change sign ificantly over the life of the engine . Typically,
engines with a specified break-in period (see~
page 190) consume
more oil during the break-in period than they co nsume after o il
consumption has stabilized .
Under normal conditions, the rate of oil consumption depends on
the quality and viscosity of the oil, the RPM (revo lutions per minute)
at which the engine is operated, the ambient temperature and road
conditions. Further factors are the amount of oil dilution from water
condensation or fue l residue and the oxidation level of the oil. As
any engine is subject to wear as mileage bu ilds up, the oil consump ­
tion may increase over time until rep lacement of worn components
may become necessary .
With all these variables coming into play, no standa rd rate of oil
consumption can be estab lished or specified. There is no a lternative
t o regula r and frequent checking of the oil level, see Note.
I f the yellow engine oil level warning symbol in the instrument
cluster _ lights up, y ou should check t he oi l level as soon as
possible
with the oil dipstick~ page 221. Top off the oil at your
earl iest co nvenience ~
page 222.
& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNING S
~ & in "Working in the engine
c ompartment " on
page 217 .
0 Note
Driving with an insuff ic ie n t o il level is l ikely to cause severe damage
to the engine.
[ i ] Tip s
• The oil pressure w arning display ce,. is not an indi cator of the oil
level . Do not rely on it. Instead, check the oil level in your engine at
regular interv als , prefe rably ea ch time you refuel , and always before
going on a long trip.
• I f you have the impression your engine consumes excessive
amoun ts of oi l, we recommend tha t you consult your Audi dealer to
have the cause of your concern properly diagnosed . Keep in mind
that the accurate measureme nt of oil consumption requires great
care and may take some time. Your Audi dealer has instructions
about how t o measure oil consumption accurately. •
Checking the engine oil level
Vehicle care I t •
Fig. 13 9 Illu stra tion of
pri nciple 1 : Mar ker s on
oi l dip sti ck ...

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
& WARN ING (c o ntinued )
• Continuou s contact with used en gine oil i s harmful to your
sk in. Alway s prote ct your skin b y wa shi ng oil off thoroughly with
soap and water .
0 Note
Never mix oil additives with your engine oil. These additives can
damage your engine and adversely affect you r Audi Limited New
Vehicle Warranty.
<£> For the sake of the environment
• Before changing your oil, first make sure you know where you
can proper ly dispose of t he used oil.
• Always dispose of used engine oil properly . Do not dump it on
garden soil, wooded areas, into open strea ms or down sewage
drains .
• Recycle used eng ine oi l by taking it to a used eng ine oi l collec ­
tion facility in your area, or contact a service station. •
Engine cooling system
Coolant
The e ngine coolant perfor ms tw o functions: i t kee ps the
en gine from overheatin g and i t pro tects the engi ne from
freezing in the winter.
The cooling system is sea led and general ly requires litt le attention.
The coo ling sys tem has been f illed at the factory with a permanen t
coo lant which does not need to be changed. The coolant consists of
a mixture of water and the ma nufacturer 's glyc ol- basedco olan t
additive
G12++ antifreeze w ith anti corrosion additives (50% for USA models; 60% for Canadian mode
ls) . T his mixture both assures the
n ecessary fros t pr otection a nd protects metal co mpo nents in the
engine's cooling system from corrosion and scaling. It also raises
t he boil ing point of the coolant .
Do not reduce the concentration of the coo lant in the su mmer by
adding plain water.
The proportion of coolant additive mu st be at
lea st 50 % but not more than 60 %
to maintai n antifreeze pro tection
and cooling efficiency. If the coolant frost protection is too low, the
coo la nt co uld free ze and damage the vehic le heating and engine
coo ling system .
For year-round driving, antifree ze is added at the factory for temper­
atures down to:
• - 31 °F ( -35 °C) USA
• -40 °F ( -40 °C) Canada.
You can mix the
G 12+ + coolant additive with other additives (G12+
or G12). Always check w ith your authorized Audi dealer.
& WARNING
Before you check anything in the engine compartment, alway s
read and heed all WARNINGS
~ & in "Working in the engine
compartment " on
page 217.
0 Note
• Before winter sets in, have the coolant checked to see if the
coo lant additive in your vehicle is suff icient to meet the c limate
co nd itions . This is e special ly impor tant i f you live in a region where
the winter is extremely cold. If necessary, increase the proportion of coo lant additive t o 60%.
• When adding coolant additive to your cooling system,
r emem ber:
- We recommend using on ly coolant additive
G 12+ + (check the
l abel) for your veh ic le . Th is coolant additive is available at autho -
rized Audi dealers. Other types of antifreeze can significantly ._

Checking and filling -
---------------------=----"=---------
reduce corrosion protection. The resu lting corrosion can cause a
loss of coolant and serious engine damage.
• Do not add any type of radiator leak sealant to your vehicle's
engine coolant. Adding radiator repair fluid may adverse ly affect the
function and performance of your cooling system and cou ld result
in damage not covered by your New Vehicle Limited Warranty. •
Checking the engine coolant level
The engine coolant level can be checked with a quick
gla nce .
Fig . 142 Engine
co mp artm ent : coo lan t
e xpa nsion t ank
Before you check anything in the engine compartment,
always read and heed all WARNINGS=> & in "Working in
the engine compa rtment" on
page 217.
- Switch the ignition of f.
- Read the coo lant l eve l at the coo lant exp ansio n tank
==> fig. 142. With a col d e ngine, it must b e above the
"min" mar k. Wit h a hot engine, it can be a little above t he
indicated range.
The location of the coolant expansion tank can be seen in the
engine compartment i llustration. To obtain an accurate reading, the engine must be switched off.
The expansion tank in your vehic
le is equipped with an e lectric
coolant level sensor.
When the coolant leve l is too low, the warning light in the Auto ­
Check System =>
page 34 will blink un til you add coolant and the
level has been restored to normal. Even though there is an e lectric
coo la n t level sensor, we still recommend you check the coolant level
from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling system . In the event
of coo lant loss, the co oling sys tem shou ld be i nspected immedi­
ate ly by your authorized Audi dealer . It is not enough merely to add
coo lant .
In a
sealed system , losses can occur only if the boiling point of the
coolant is exceeded as a result of overheating .
0 Note
Do not add any type of radiator leak sea lant to your vehicle's engine
coolant. Adding rad iator repair fluid may adversely affect the func ­
tion and performance of your coo ling system and could resu lt in
damage not covered by your New Vehic le Limited Warra nty. •
Adding coo lant
Be very careful when adding engine coolant.
Before you check anything in the engine compartment,
always read and heed all WARNINGS==> & in "Working in
the engine compartment" on
page 217 .
-Turn off the engin e.
- Let the engine cool down.
Vehic le care I I irechnical data

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
-Pla ce a t hick ra g o ver the coola nt e xpansion tank
=>
page 225, fi g. 142 an d carefully tw ist the c ap counter ­
cl ockw ise=> &.
- Add coo lan t.
- Twist the cap on again
tightly .
Replacement engine coolant must conform to exact specifications
=>
page 224, "C oolant" . Even in an emerge ncy, if coo lant add it ive
G 12+ +, G 12+ or G12 is not availab le, do
not use a different additive.
Use p lain water instead until you ca n get the c orrec t addit ive and
can restore the correct ratio. This should be done as soon as possible.
If you have lost a considerable amount o f coo lant, then you should
add co ld antifreeze and cold water only when the engine is cold.
A lways use
new e ngine c oolan t when refil ling .
Do not fill coolant above the "MAX" mark. Excess coolant will be
forced ou t through the pressure relief va lve in the cap when the
engine becomes hot.
& WARNING
• The cooling sy stem is under pre ssure and can get very hot .
Reduce the risk of scalding from hot coolant by following these
s teps.
- Turn off the engine and allo w it to cool down .
- Protect your face, hands and arms from esc aping fluid and
steam by covering the cap with a large , thick rag .
- Turn the cap slo wly and very carefully in a counter -clockwise
dire ction while applying light , downward pressure on the top
of the cap .
- To avoid being burned, do not spill antifreeze or coolant on
the e xhaust system or hot engine parts . Under certain condi ­
tions, the ethylene glycol in engine coolant can catch fire .
& WARNING (continued )
• Antifreeze is poi sonous. Always store antifreeze in its original
container and well out of the re ach of children .
• If you drain the coolant , it must be caught and safely stored in
a proper container clearly marked "poison ".
0 Note
• Coo lant po llutes the environment and could cause an engine
fire. Excess coolant will be forced out through the pressure re lief
va lve in the cap when the engine becomes hot.
• If , in an eme rgency, o nly wa te r can be added, the correct rat io
between water and antifreeze=>
page 224 must be restored as soon
as possib le .
ffi For the sake of the environment
Drained coolant should not be reused. Always dispose of used
coo lant whi le observ ing all environmen tal regulat io n s. •
Radiator fan
The radi ator f an s witches on au tomati cally by itself.
T he e lectric radiator fan is control led bythe rmoswitches that switch
on and off depending on coolant and engine compartment temper ­
atures.
An auxiliary electric radiator fan* switches on and off depending on
coo la nt tempe rature a nd other veh ic le operati on cond itio ns.
After you switch the engine off, the aux iliary fan can continue
running for up to 10 m inutes -even with the ignition off. It can even
sw itch o n again later by itself=> & , if
• the temperature of the engine coo lant rises due to the heat
b ui ld-up fro m the eng ine in the eng ine co m partment, or