2009 AUDI TT COUPE air conditioning

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 .
~

& 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 • •

___ A---" lp_ h_ a_b_ e_ t_ i_ c _ a_ l_ in_ d_ e_x ______________________________________________ _
A
A/C operation
Climate control ............ ....... 89
ABS See Anti -Lock Brake System . . . . . . . . 187
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 295
Acoustic park assist rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Acoustic parking system .. .... ... .... . 95
Adaptive Light defective . . . . . . . . . . . . . . . . . . . . . . . . 37
Adaptive light . . . . . . . . . . . . . . . . . . . . . . . 54
Adding Engine coolant .. ... .... .... .... . 225
Engine oil ....................... 222
Windshield washer fluid . . . . . . . . . . 233
Additiona l accessories .. ........ .... . 295
Additives Engine oil ... ..... .... ... ... ... .. 222
Adjustable steering column .... .... ... 91
Adjusting front seats . ...... .... .... .. 69
Adjusting steering column ...... .. ... . 91
Adjusting the seats .... .... .... .... .. 71
Advanced Airbag System
Children ........................ 158
Components .. .... .... ......... . 142 Air distribution
Climate control ..... .. .... .... .... 87
Air recirculation mode Climate control ...... .... ... .. .... 88
Airbag Warning/indicator lights ......... .. 18
Airbag system .................. 135, 155
Care ............................ 149
Child restraints .... .... .... .... .. 159
Components (front airbags) .. ...... 142
Danger of fitting a chi ld safety seat on the
front passenger seat . . . . . . . . . . . . 137
Disposa I . . . . . . . . . . . . . . . . . . . . . . . . 149
Front airbags . . . . . . . . . . . . . . . . . . . . 139
How do the front airbags work? . . . . 144
How many airbags does my vehicle have?
142
Important safety instructions on the knee
airbag system . . . . . . . . . . . . . . . . . . 153
Important things to know . ... .. ... 135
Indicator light ....... .... ... .. ... 146
Knee airbags .... .... .... ... .... . 151
Monitoring . . . . . . . . . . . . . . . . . . . . . . 146
PASSENGER AIR BAG OFF light ... .. 147
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . 149
Side airbags ... ...... ....... ..... 154
When must the system be inspected? ...
146 Anti-free
ze
See Engine coolant system ...... .. 224
Anti -glare inside day-night mirror .... .. 64
Anti-Lock Brake System .............. 187
Anti- lock brake system
Warning/indicator lights ............ 20
Anti -Slip Regulation System (ASR)
How the system works . . . . . . . . . . . . 184
Anti-theft systems Anti-Theft A larm System ...... ..... 47
Electronic immobilizer . .... .... .... 40
Ashtray ................... .......... 81
ASR How the Anti -S lip Regu lation System
works ... .... .... .... ... .... ... 184
Asterisk What does it mean when something is
marked with an asterisk? . .... ...... 6
Audi magnetic ride ......... .... ... 16, 98
Description ....................... 98
Indicator light ...... ..... ..... ... . 16
Audi Service Repair Manuals and Literature . 293
Auto Safety Hotline ... ..... .. ... ..... 123
Automatic belt retractor 129
Automatic car wash
See Washing .. ........ .... ...... 199
Front airbags ....... .... .... .... .
140 All Wheel Drive
......... ....... ..... 189 Automatic headlight control ........... 52
How the components work together 143 Alloy wheels ... .. ...... .... ... .. ... 204 Automatic headlights
Monitoring .. .... .... .... ... .... . 146 All-whee l drive defective .
.... ... .... .... .... ..... 37
Weight -sensing mat . ... .. .... .... 158 Winter tires ..................... 250 Automatic Transmission
air conditioning Alternator Automatic Transmission
.......... 103
Temperature . . . . . . . . . . . . . . . . . . . . . 86 See Generator . . . . . . . . . . . . . . . . . . . . 18