2008 AUDI TT ROADSTER air conditioning

Sound system display
Fig. 8 Ce nte r di spl ay:
sou nd s ystem
If priority 1 or priority 2 faults ar e not shown by th e Au to Check
Control, the name of the radio station you are tuned to or the
frequency and the reception range are shown in the upper area of
t h e display .
When the CD is in use , the title of the track being p layed is shown .
T h e number of th e CD (CD 1 to CD6) curr ently being played is also
shown. •
Outside temperature display
Fig . 9 Ce nter di spl ay:
o utside tem pe ratur e
The outside tempe ra ture wil l be displayed when you switch on the
ignition~ fig. 9. If your vehic le has an automa tic transmiss ion , the
Con tro ls and eq uip­
ment
Dri ver in form ati on syst em
outside temperature will appear in the display only after you have
moved the selector lever into a gear (for example, when yo u shift
into
" D ") .
The snowflake symbo l a lso appears when the outs ide temperature
is below 41 °F ( +5 °C). This is to warn you, the driver, to be extra
cautious becaus e the road surfaces may be
icy . If the vehicle is at a
standstil l, or i f you are driving at a very low speed, the temperature
shown in the display might be sligh tly high er than the ac tual
outside temperature . This is caused by the heat being radiated from
the engine .
Remember , if your vehicle is equipped with air conditioning and you
change the display from °F (Fahrenhei t) to °C (Centigrade) , then the
outside temperature will automatical ly be displayed in °C (Centi ­
grade) .
& WARNING
• Never r ely e xclusive ly o n th e out side t emperature di sp la y to
determin e if a ro ad surf ace is icy or not. K eep in mind that road
s urface s, esp ecially bridge s and overpa sses, co uld be ice c overed
and slippery even at an out side temper ature above 41 °F
1+5 ° C I.
• Alwa ys re m embe r, even if th e "s nowflak e" sy mbol lic e
wa rning ) does not app ear i n the display , b lack ice cou ld be on the
road .
• Alway s re duce your speed and driv e with sp eci al c are in cold
wea ther condition s when the ch an ce of en count ering i cy road
s urf ace s in creas es.
[ i ] Tip s
When using the navigation system feature "Destination", the
outside temperature is also displayed .•
Vehicle care I I irechnical data

Warm and cold
Warm and cold
Climate controls
Controls
The air conditioning automatically maintains the selected
temperature in the vehicleinterior throughout each
se aso n.
Fig . 93 C limate co ntro ls
We recomme nd the following setting:
Rotate the knob=> fig. 93 @to th e right to switch on the
air conditioning.
Set t he temperature to 72 °F ( 22 °Cl.
Press th e !AUTO ]=> fig . 93 button.
Using the previously recommended setting is the quickest way to
achieve a comfortable climate in the vehicle . T his setting should
therefore on ly be changed when persona l comfort levels or certain
circumstances require it .
The climate contr ols are a combination of automatic heating and
ventilation systems and a cooling system which dehumidifies and coo ls the a ir inside the veh ic le .
The climate controls automa tically ma intain a temperature once it
has been set . T he temperature of the air from the vents, fan speed
(air volume) and air dis tribution are also automa tica lly adjusted . The
system also takes into account strong sunshine so that manual
adjustment is no t necessary. So in al most a ll cases,
automatic mode
offers the best conditions for the comfort of the occupants at all
times of the year~
page 101.
Please note :
In cooling mode, relative humidity in the interior is reduced. This
prevents the w indows from fogging up.
When relative humidity and temperatures outside are high,
conden­
sate
can drip from the air conditioning evaporator and form a poo l
of water under the vehicle . This is normal and not an indication 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
ture, with the exception of the defrost setting .
When accelerating at wide -open throttle, the air conditioning
compressor is temporarily switched off to maintain full engine
power .
I n order to ensure eng ine cooling under extreme engine loads, the
compressor is switched off if coolant temperatures climb too high. _,,,

Functions are set by turning the rotary knob or switched on and off
by tapping the buttons. The LED in the buttons illuminates when the
function is active .
Button(sl
Rotary knob 0
Rotary knob 0 @
Rotary knob©
(- .,; +]
-
Po llutant f ilter Me
aning
Temperature selection
Switch ai r conditioning
on/o ff
Fan
Air distribution
Rear window defogger
Heated seat* driver/pas ­
senger side
Recirculation
Switch on cooling sys ­
tem
P age
~ page 100
~ page 100
~ page 701
~ page 101
~ page 103
~ page 104
~ page 102
~ page 102
The pollutant filter (particle filter) ensures that contaminants in the
outside air (such as dust or po llen) are grea tly reduced or stopped.
T he air is also filtered in recirculation mode.
The pollutant fil ter e lement must be changed according to the inter ­
vals specified in the maintenance schedu le so that the air condi­
tioning system's performance is not adversely affected.
If the fil ter's effectiveness is weakened by driving the vehicle in
areas with heavi ly polluted outside air, the filter element should also
be changed in between the listed services .
Controls and equip ­
ment
W arm and cold
& WARNING
Fo r safet y rea sons , it is imp ort ant that all window s are free of ice,
snow , and condensati on . Only then i s good vi sibility en sured.
Pl eas e familiari ze yourself with the co rrect o peration of th e air
c ond itioning and how to dehum id ify /defro st the windows.
0 Note
• I f you suspect that the climate contro ls have been damaged ,
switch the system off to avoid damaging it , and have it inspected by
an authorized Audi dealer.
• Audi climate control system repairs require specia l expertise and
the proper tools. You shou ld contact an authorized Audi dealer in
the event of malfunct ions.
[ i ] Tip s
• To avoid adversely 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 circu lating through the en tire
interior is extracted through the out let 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 .
However , if the interior o f a parked vehicle is extremely hot from the
sun's rays, briefly opening the windows can speed up the cooling
process. •
I • •

• ..__w_ a_ r_m _ a_ n_d_ c_ o_ ld __________________________________________________ _
Manual air recirculation mode[~]
The recirculation mode prevents polluted outside air from
entering the vehicle interior.
Switching on air recir culation
- Press the button [19.] ~ page 98, fig . 93 ~ & .
Swit ching off air recir culation
Press the butt on [19.] ag ain, o r
Press the
[AUTO I button, or
- Press the[@] button.
In recircu lation mode, air is drawn from the vehic le interior, filtered,
and recircu lated. We recommend that you se lect recircu lat ion mode
briefly ~ & under the fo llowing conditions:
When driving through a tunnel or i n a traffic jam so that exhaust
fumes and odors cannot enter the vehic le interior .
& WARNING
You should not u se the re circulat ion mode for an e xtended period
s ince no fre sh air i s drawn in , and with the air conditioning
s wit ched off the windows can fog up -this in crea se s the ris k of an
accident !•
A /C operation [AC)
Switching on A /C
- Press th e [AC] button~ page 98, fig. 93 .
Switching A /C off
- Press the [AC] button again.
The cooling system is switched on during A/C operation - the
heating and ven tilation system is controlled automatica lly.
I i ] Tips
If the LED in the switch stays on after A/C operation has been
switched off( = switching the A/C offl, there is a fau lt in an air condi ­
t ioning component. Please consult an authorized Audi dealer when
there is an operating prob lem .•
Air vents
Air d istribution determines the air flow fro m the indi ­
vi dual vents.
Fig . 97 Instrumen t pan el: Loc ation o f air vent s
Vents @and 0
- To open and close the outlets, t urn the adjusting ring.

___ A---" lp_h_ a_b_ e_ t_ i_ c _ a_ l_ in_d_ e_x ______________________________________________ _
A
A/C operation
Climate control
ABS 102
See Anti -Lock Brake System . . . . . . . . 189
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 296
Acoustic park assist rear .. .... .. ... ... ....... .... .. .
Acoustic parking system
Adaptive Light 109
109
defective . . . . . . . . . . . . . . . . . . . . . . . . 36
Adaptive light . . . . . . . . . . . . . . . . . . . . . . . 72
Adding Engine coolant ... .... ........... 228
Engine oil ....................... 225
Windshield washer fluid . . . . . . . . . . 236
Additiona l accessories .. ...... ...... . 296
Additives Engine oi l ....................... 225
Adjustable steering column .......... 105
Adjusting front seats ... .. .... .... .... 87
Adjusting steering column ...... .. ... 105
Adjusting the seats ...... .... ........ 89
Advanced Airbag System Children ........................ 169
Components .. .................. 153
Front airbags ......... .... ...... . 151
How the components work together 154
Monitoring . . . . . . . . . . . . . . . . . . . . . . 157
Weight -sensing mat .. .. .. .... .... 169 Air distribution
Climate control
Air recirculation mode Climate control ...... .... ... .. .. .
Air vents Climate control
Airbag 101
102
102
Warning/indicator lights ..... ...... 19
Airbag system . . . . . . . . . . . . . . . . . . 146, 165
Care ... ........... .... .... ...... 160
Child restraints ............ .... .. 170
Components (front airbags) .. ... ... 153
Danger of fitting a child safety seat on the front passenger seat . . . . . . . . . . . . 147
Disposal . . . . . . . . . . . . . . . . . . . . . . . . 160
Front airbags ................. ... 150
How do the front aiirbags work? . . . . 155
How many airbags does my vehicle have?
153
Important safety instructions on the knee airbag system .......... ....... . 163
Important things to know ......... 146
Indicator light .. ..... ....... ..... 157
Knee a irbags .. ...... ......... ... 161
Monitoring . . . . . . . . . . . . . . . . . . . . . . 157
PASSENGER AIR BAG OFF light ... .. 157 Alternator
See Generator . . . . . . . . . . . . . . . . . . . . 19
Anti -freeze
See Engine coolant system ...... .. 227
Anti-glare inside day-night mirror ...... 82
Anti-Lock Brake System .............. 189
Anti -lo ck brake system
Warning/indicator lights . ...... .... . 20
Anti-Slip Regulation System (ASR) How the system works . . . . . . . . . . . . 186
Anti-theft systems Anti-Theft Alarm System ........... 56
Electronic immobilizer ............. 49
Ashtray .............. ........... .... 94
ASR How the Anti-Slip Regu lation System
works ......................... 186
Asterisk What does it mean when something is
marked with an asterisk? ... .... .... 6
Audi magnetic ride .... .... ..... .. 17, 112
Description .... .... .... ...... .... 112
Indicator light .... .... ............ 17
Audi Service Repair Manuals and Literature .
294
Repairs .. .... ....... ...... .... .. 160 Auto Safety Hotline . .... .... .... ..... 136
Side airbags . ........ ....... ..... 164 Auto-Check Contro l ................... 29
When must the system be inspected? . . . Automatic transmission ............ 31
157 Auto-Check -Control
All Wheel Drive . . . . . . . . . . . . . . . . . . . . . 191
Alloy wheels . . . . . . . . . . . . . . . . . . . . . . . 207 Manual
transmission
Automatic belt retractor 31
141
air conditioning All-wheel drive Automatic car wash
Temperature .. ............ ... ... 100 Winter tires ..................... 254 See Washing .................. .. 201