tire pressure AUDI TT ROADSTER 2008 Owners Manual

Cockpit
General illustration
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Power window switches
Door handle
Pow er lo cking switc h
Adjus te r contro l fo r ou tsid e mirro rs ...... .... ... . .
Air outlets ..... .. . ..... .... .... .. . .... .. . ..... .
Light switch .. ...... .... ... .... .... .... .... ... .
Turn signa l and high beam
Multifunc tion steering wheel with:
- Horn
- Driver's a irbag .... .... ... .... .... .... .... ... .
- Shift b uttons ... .. .... ... .... .... .... .... ... .
Instr um en t cluster . ...... ... .... .. ...... .. .. ... .
Switches for
- Windshield wipe r/wash er ... .... .. ....... .. ... .
- Menu d isplay ...... ... .. .. .... .... .... ... ... .
- Trip computer ..... .. .... .... ...... ....... .. .
Depending on options : Radio or navigation sys tem
G love compa rtmen t (loc kab le) ... .. .. .. ... .... ... .
Front passenger 's airbag .. ...... .. . .... .. .. .... .
Rear window defogger switch .... ..... .. .... .... .
Climate controls ..... .. .... .... ..... .. ... ... .. .
Ashtray wi th cigare tte lighter ....... ............ .
Gear sh ift l ever or s elector lever (automatic transmis -
sion) 57
53
83
102
69
76
150
119
1 2
78
27
39
96
150
10 3
98
94
- Manual transm ission . . . . . . . . . . . . . . . . . . . . . . . . . 113
- S tronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
@ Switches for
- Aud i magnetic r ide
Controls and equip ­
ment
112
Co ckpit
- Electronic Stabilization Program (ESP) . .... .. ... .
- Emerge ncy flasher ... .. .. .. .... .... .... .. . ... .
- Retractab le r ear spoiler .... ...... .... .... .... . .
- Tire pressure mon itor ing system ..... .... .. . ... .
@ Sw itc h f or wind deflector .... .. ..... .. .... ... ... .
@) Switch for automatic folding top ..... .. .... ... ... .
@ Cup hold er ....... .. .. .. .... .... ....... ....... .
@ Parking brak e le ver ... .... ..... .. .... .... ..... . .
@ S teeri ng lock/igniti on/sta rter sw itch (in t he s teer ing
whee l column) ... .... ... ... ... .. .... .... ...... .
@ Adjus tab le steering co lu m n .. ...... ..... ... ... .. .
@ Cruise contro l .... ... .... .... .... .... .... ... ... .
@ Hood release ... .. .. .. ..... .. .... .... .... ...... .
@ Data Link Connect or (DLC) for On Boa rd Diag nostics
(OBD Ill .... ... .. ...... .... ... .... ... .. ... .... .
@ Daytim e running l ights (DRU* .... .... .... .... ... .
@ Instrumen t lighting ...... .... .... .... ... .... ... .
@ Switc hes f or
- Fue l filler flap release .... .. .... .... .... ... ... .
- Rea r lid r elease
[ i ] Tip s
A separate brochure is provided for your factory -insta lled audio
system and/or the Aud i Nav igation System .•
I • •
184
75
187
41
64
62
94
108
106
105
110
219
2 6
71
74
216
55

Inst rum ent s a nd warning /indi cato r li ghts
Warning /indicator lights
Ov erview
The warning/indicator lights indicate different functions
or a possible malfunction.
F ig. 6 Inst rum ent cluste r w ith warning/ indicator lig hts
Audi magnetic ride => page 17
Tire pressure too low => page 17
Electronic power control => page 17
-Fol ding top => page 18
II
Electronic Stabi lization Program (ESP) => page 18
D
¢
~
CRUISE
012
A IR
BAG
. o.
e::=- -!J
LJ
-
4
BRAKE

USA model s: => page 18
Malfunction Indicator Lamp (M IU
-
C an ada m od els :Malfunction lndica -=> page 18
tor Lamp (MIU
High bea m
=> page 18
Rear spoiler => page 18
Left turn signa l => page 19
Right turn signal => page 19
USA models: => page 19
Cruise control activated
Cana da mod els: => page 19
Cruis e control activated
USA mod els: => page 19
Airbag system
Ca nada mod els : => page 19
Airbag system
Generator
=> page 19
-
Safety belt => page 19
USA model s: Brake system, parking II=> page 20
brake set
Ca nad a model s: Brake system, park -
=> page 20
ing brake set

USA models: anti-lock brake system ~ page 20
(ABS) defective
Canada models: anti-lock brake sys-
~ page 20
tern (ABS) defective
/@ Electro -mechanical power assist => page 21
& WARNING
• Failure to heed warning lights and other important vehicle
information may result in serious personal injury or vehicle
damage .
-
• Whenever stalled or stopped for repair, move the vehicle a safe
distance off the road, stop the engine, and turn on the emergency
flasher
=> page 75.
• The engine compartment of any motor vehicle is a potentially
hazardous area. Before you check anything in the engine compart­
ment, stop the engine and let it cool down. Always exercise
extreme caution when working under the hood
~ page 212,
"Engine compartment"
[ i] Tips
Many functions are moni tored by the Auto -Check system
=> page 29. Malfunctions or faults will be identified either with a red
symbol (priority 1 - Danger!) or with a yellow symbol (prior ity 2 -
Warning). •
Applies to vehicles : with Audi m agnetic rid e
Audi magnetic ride
The indicator light monitors vehicle damping.
The indicator ligh t illuminat es when th e ignition is switched on as
a function check.
Controls and equip ­
ment
Instruments and warning/indicator lights
[ i] Tips
If the indicator lamp illuminates while you are driving, there is a
malfunction in the vehicle damping. The chassis should be
inspected immediately by an authorized Audi dealer. •
Tire pressure monitoring system -telltale
indicator lamp
C.
The warning/indicator light appears in the event of a
significant loss of air pressure.
The warning/indicator light illuminates for a few seconds after
the ignition is turned on as function check and then goes out.
If the symbol appears, pressure is too low in at least one tire .
When the system d etects a malfunction, the warning/indicator light
will flash for approximately one minute and then remain continu­
ously illuminated . This sequence will continue upon subsequent
vehicle starts up as long as the malfunction exists. Contact your
authori zed Audi dealer and have the malfunction corrected.
For more information
=> page 43. •
Electronic power control "
This warning/indicator light monitors the electronic
power control.
The warning/indicator light (Electronic Power Control) illumi -
nates when you switch on the ignition as a function check .
[ i] Tips
If this warning/indicator light illuminates while you are driving , then
there is a malfunction in the engine electronics. Have the malfunc­
tion corrected as soon as possible by your authorized Audi dealer or
qualified workshop. •
I • •

Driver information system
[ i] Tips
• The engine oil pressure symbol 9:::r. is not an indicator for a low
engine oil level. Do not rely on it. Instead, check the oil level in your
engine at regular intervals, preferably each time you refuel, and
always before going on a long trip.
• The yellow oil level warning indication · requires oil refill or
workshop service without delay. Do not wait until the red oil pres­
sure warning symbol
9:::r. starts to flash before you respond to the
low oil level warning . By then, your engine may already have
suffered serious damage. •
Yellow symbols
A yellow symbol means WARNING.
Yellow symbols mean:
Low fuel level
Check engine oil level Engine oil sensor malfunction
-
Worn brake pads
USA models:
Speed warning 1
Canada models:
Speed warning 1
-
USA models:
Speed warning 2
-Canada models:
Speed warning 2 =>
pag
e35
=> page35
=> page35
-
=> page35
=> page35
=> page35
=> page35
-
=> page35
Dynamic headlight range con­
trol* defective => page35
Windshield washer fluid level low
=> page 35
Battery voltage too high or too
low
Defective light bulb
USA models:
Defective brake light
Canada models:
Defective brake light =>
page35
=> page36
=> page36
=> page36
Light/rain
sensor defective (auto-=> page 36
matic headlights) * defective
Adaptive Light* defective =>
page 36
Tire pressure monitoring system * => page 37
Yellow symbols indicate a priority 2 malfunction -Warning!
When a yellow symbol appears, a warning tone will sound
once .
Check the displayed function as soon as possible . If more than one
priority 2 malfunction is detected, all symbols will appear one after
the other for about two seconds.
To display driver information
As an example, the[} symbol appears in the display . If you now
press the button =>
page 12, fig. 2 ©, the following driver message
appears in the display:
PLEASE REFUEL
The driver message in the display goes out after about 5 seconds.
You can display the driver message again by briefly p ressing the
button. •

When this symbol ' illuminates, it means that Adaptive Light is
defective. Go to a qualified workshop to have the headlights or the
control unit for the Adaptive Light repaired. •
Applies to vehic les: w it h tir e p ressure monitor in g system
Tire pressure monitoring system J
Tire pressure that is too low must be corrected as soon as
possible .
If the 'symbol flashes for about one minute after the igni­
tion is switched on and then remains on, there is a malfunc­
tion in the system. Consult the nearest authorized Audi
dealer as soon as possible.
Additional information about the tire pressure monitoring system
can be found: => page 41. •
Speed warning system
Overview
The speed warning system helps you to keep your driving
speed below a set speed limit.
Controls and equip ­
ment
Fig . 23 Display: speed
warning system
Driver inform ation system
The speed warning system warns the driver if he exceeds a previ ­
ously stored maximum speed. A warning tone wi ll sound as soon as
the vehicle speed exceeds the set speed by about 6 miles per hour (10 km/h). At the same time, a warning symbol appears in the
display=> fig. 23.
The speed warning system has
two warning thresholds that func ­
tion independently of each other and that have somewhat different
purposes :
Speed warning 1 )f ..._ (Canada models)
You can use speed warning 1 to set the maximum speed while you
are driving . This setting will remain in effect until you turn off the
ignition, assuming that you have not changed or reset the setting.
The speed warning symbol
J I ,.... (Canada models) in the warning 1
display appears when you exceed the maximum speed . It goes out
when the speed falls below the stored maximum speed.
The speed warning symbol will also go out if the speed
exceeds the
stored maximum speed by more than about 25 mph (40 km/h) for at
least 10 seconds. The stored maximum speed is deleted .
Setting speed warning 1 =>
page 38.
Speed warning 2 ...,,, /
e!. (Canada models)
Storing warning 2 is recommended if you always want to be
reminded of a certain speed, for example when you are traveling in
a country that has a general maximum speed limit, or if you do not
want to exceed a specified speed for winter tires.
The speed warning 2 symbol, / ) (Canada models) appears in the
display when you exceed the stored speed limit. Unlike warning 1,
it wi ll not go out until the vehicle speed drops below the stored
speed limit .
Setting speed warning 2 =>
page 38 .
I • •

Switchin g bet w ee n m enu l ev els
- Tap the Rest button ® briefly to reach the various menu
levels one after the other ("Computer 1 ", "Computer 2",
"Navigation system"* and "Start menu") .
Rese ttin g th e fun ction to z ero
- Select the desired function.
- Push the reset button ® for at least two seco nds .
The trip computer only operates when the ignition is on. When you
turn on the ignition, the function that was in use when you last
turned the ignition off will be displayed .
In addition to the trip computer information (memory level 1 or 2)
and navigation information can be displayed. To switch the display
between the different systems, tap the Reset button
@ briefly .
You can reset the following va lues to zero using the reset button:
• driving time
• average mileage
• average speed
In addition,
a ll the values in the single -trip or the total-trip memory
can be de leted simu ltaneously .
[ i ] Tips
• If you hold down the reset button for longer than 2 seconds, the
current value (for example, average fuel consumption) will be reset
to zero .
• Malfunction displays in Auto -Check Control are shown even with
the display switched off.
• All stored values will be lost if the vehicle battery is
disconnected. •
Controls and equip ­
ment
Dri ver infor mat io n sy ste m
Tire pressure monitoring system
General notes
As an added safety feature, your vehicle has been equipped with a
tire pressure monitoring system (TPMS) that illuminates a low tire
pressure telltale when one or more of your tires is significant ly
under -inflated. The TPMS only provides a low tire pressure warning
and does not reinflate your tires.
Accordingly, when the low tire pressure tellta le illuminates, you
should stop and check your tires as soon as possib le, and inflate
them to the proper pressure. Driving on a significantly under­
inflated t ire causes the tire to overheat and can lead to tire failure .
Under -inflation a lso reduces fuel efficiency and tire tread l ife, and
may affect the vehicle's handling and stopping ability.
(D Note
• Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver's respons ib ility to maintain correct
tire pressure, even if under -inflation has not reached the level to
trigger illumination of the TPMS low tire pressure telltale .
• Each tire, including the spare, should be checked monthly when
cold and inflated to the inflat ion pressure recommended by the
vehic le manufacturer on the vehicle p lacard or tire inflation pres ­
s u re label. (If your vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation pressure labe l, you
should determine the proper tire inflation pressure for those
tires.) •
TPMS malfunction indicator
Your vehic le has a lso been equipped with a TPMS malfunction indi­
cator to indicate when the system is not operating proper ly . The
TPMS malfunction indicator is combined with the low tire pressure _.,
I • •

Driver inf orm atio n syst em
telltale. When the system detects a malfunction, the telltale will
flash for approximately one minute and then remain continuously
illuminated. This sequence will continue upon subsequent vehicle
starts up as long as the malfunction exists .
When the ma lfunction indicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning properly. A lways
check the TPMS malfunction tellta le after replacing one or more
tires or whee ls on your vehicle to ensure that the replacement or
a lternate tires and wheels al low the TPMS to continue to function
proper ly .•
Introduction
The tire pressure monitoring system monitors air pressure
in all four road wheels while the vehicle is moving.
As soon as the t ire pressure monitoring system senses a s ignificant
loss of air pressure in one or several tires, text messages and yel low
symbo ls appear in the instrument cluster display to a lert the driver.
The warning light in the instrument c luster comes on when the
tire is significantly underinflated
=> page 17.
The warning light
malfunction . also
illuminates in the case of a system
Be aware that tire pressure is also dependent on the temperature of
the tire . For every 18 °F (10 °C) increase in tire temperature, tire pres­
sure increases by about 1 .5 psi (0. 1 bar) . The tire warms up while the
vehic le is moving and tire pressure rises. So you should adjust tire
pressure on ly when they are
cold , when the temperature of the tires
is roughly the same as the ambient air temperature.
In order to keep the tire pressure monitoring system properly ca li­
brated, tire pressure on all four tires should be checked at regular intervals, adjusted if necessary and saved in the proper setting
(recommended
pressure)=>
page 44.
The tire pressure is shown on the label located on the driver 's side
B -pillar (visible when the door is open) .
& WARNING
• When the tire pre ssure monitor ing system warn ing light i s lit ,
one or more of your t ir es is s ignificantl y unde r-inflated . You should
s top and check your tire s as s oon as po ssible , and inflate them to
the p rope r pre ss ure as indi cated on th e vehicl e's tire pr essure
label
=> pag e 242. Driv ing on a s ignific antl y un der-inflated t ire
c a use s the tire to overhe at and can le ad to tire fa ilure. Unde r-inf la­
ti on also i s lik el y to impair the vehicle' s handling and stopping
ability .
• Do not adju st t ir e pressur e wh en t ire t emp erature is exce ssiv e.
Thi s could le ad to seriou s tire dam age and even cau se the tire t o
bur st, w ith the addition al dan ger of an accident.
W For the sake of the environment
Driving with under -inflated tires reduces fuel efficiency and tire
tread life.
[ i ] Tips
• Each tire should be checked month ly when the temperature of
the tires is abou t the same as ambient air temperature and s et to the
recommended inflation pressure as specified on the tire pressure
label =>
page 242.
• The factory supplied spare whee l is equipped with a se nsor for
the tire pressure monitoring sys tem. As long as the spare wheel is
n ot mounted, the tire pressure of this tire wil l not be monitored.
• T he tire pressure monitoring system he lps the driver to keep an
eye on tire pressures . But the driver still has the responsibility f or
maintaining the correct tire pressure . .,_

• Tire pressure must only be adjusted when the temperature of the
tires is about the same as ambien t air temperature.
• When tires are replaced, the sensors and valves should not be
exchanged. The valve core, nut, valve sea ling and sea l washer
(replacement kit) needs to be replaced. If necessary, the valve and
the wheel electronics have to be rep laced .
• If you should put different wheels and tires on your vehicle (e.g.
winter wheels and tires), you must be certain that the wheels and
tires are compatible with the tire pressure monitoring system.
Otherwise the system will register a malfunction and a fault
message will be displayed. For more information, contact your Audi
dea ler.
• Adjust the tire pressure and store the pressure in the tire pres ­
sure monitoring system to the load you are carrying .•
Significant loss of air pressure \-,1
The yellow symbol appears in the event of a significant
loss of air pressure.
Fig. 28 Display: yellow
symbol with message
If the • warning light in the instrument cluster comes on
and then the ( symbol appears in the display~ fig. 28,
pressure in at least one t ire is too low.
Controls and equip ­
ment
Driver inform ation system
Stop driving as soon as possible without endangering
yourself and other drivers on the road .
- Inspect all tires.
Change the tire if necessary ~ page
267.
The ._ warning light in the instrument cluster comes on when the
tire is significantly underinflated .
In addition, the tire symbol(_, appears in the display together with
the message
Please check tire pressure => fig. 28.
After a few seconds, the message disappears again. If you would
like to show the message again, press the Set/Check button
=>
page 12, fig. 2 ©-
[ i ] Tips
• In the case of an intentional loss of air pressure, for example,
when re -adjusting tire pressure, this has to be stored again after ­
wards=> page 44.
• Tire pressure must only be adjusted when the temperature of the
t ires is about the same as ambient air temperature.
• The yellow symbol disappears, when the tire pressure is
corrected and the new pressure is stored in the system=>
page 44.
• After changing a wheel or replacing a wheel with the spare tire
you have to adjust the tire pressures on a ll wheels. In add ition , you
must then initia lize the new tire pressures in the tire pressure moni ­
toring system =>
page 44. •
I • •

Driver inf ormation sy ste m
Storing tire pressures
Correct storage of specified pressure is the basic require­
ment for reliable tire pressure monitoring.
F ig . 29 S ET -butt on:
T ire pressure mon i­
t or ing syste m
In order for the tire pressure monitori ng system to operate
appropr iately, you have to re-save the specified p ressures
whenever you adjust tire pressures, for example when the load co nd ition of your vehicle changes. Proceed as fo llows:
Corr ecting tir e pr es sure
Check the pressure in the t ires.
- Adjust air pressure as needed to comply w ith the infor­
mat ion on the label located on the driver's side B -pillar
(visible when the door is open) .
Saving tire pressures
-Turn on the igniti on.
- Press the button :::> fig. 29 for app rox imately 5 seconds.
You will hear a beep and the symbol in the instrument
cluster flashes three t imes .
All pressure warning indicators in the d isplay will be canceled. Following each intentional change in specified pressures, ti
re pres ­
sures must be resaved.
After the pressures are saved, the tire pressure monito ring system
measures the current tire pressures and saves them as the new
spec ified pressures .
[ i ] Tip s
• The tire pressure is shown on the tire pressure labe l. The tire
pressur e lab el is located on the driv er's sid e B-pillar (visible when
the door is open). The tire pressure label l ists the recommended
cold tir e inflation pr essur es for the vehic le at its maximum capacity
weigh t and the tires that were on your vehicle at the time it was
manufactured . For recommended tire pressures for norma l load
conditions, please see chapter~
page 242.
• The tire pressure monitoring syst em he lps the driver to keep an
eye on tire pressures. But the driver still has the responsibility for
maintaining the cor rect tire pressure .•
Wheel change
If a wh eel is ch anged , the wheels tha t were exchan ged
have to be re -programmed.
- Tu rn on the ignition.
- Press the button :::> fig. 29 for approximately 5 seconds .
You will hear a beep and the symbol in the button flashes
three times.
Programming is necessary :
• after the t ires have been rotated on the vehicle, or the spare tire
is used,
• if tires with new wheel sensors are used .
All pressure warning indicators in the disp lay wil l be canceled . The
system malfunction error message will not disapp ear until the .,_

vehicle is underway. With pressing the button=> fig . 29, the re­
programming of the new sensors and storing of actual pressures
starts . This learn ing phase can take up to 10 minutes driving time.
During the learning process the tire pressure monitoring system is
not avai lable. •
Malfunctions T =»'\,AC.:
A malfunction can have various causes.
Fig. 30 Display:
System malfunction
If the t warning light in the instrument cluster flashes for approxi ­
mately one minute and then remains continuously illuminated and
additionally the
r fin'-=> fig. 30 symbo l appears in the display, the
tire pressure monitoring system is not available. This can have
various causes .
• If the message appears at the end of the learning process, the
system cannot recognize the wheels installed on the vehicle. This
can be because one or more wheels without a whee l sensor were
installed.
• A wheel sensor or other component may have failed .
• During initia lization the system has detected more than 4 wheels
on the vehicle, for example whi le driving next to another car with a
tire pressure monitoring system.
Controls and equip ­
ment
Driver inform ation system
• A wheel change was made but the button => page 44, fig. 29 was
not pressed .
• Audi replacement parts were not used.
• If snow chains are being used, system function can be compro­
mised due to the shielding properties of the chains.
• The tire pressure monitoring system may not be available
because of a radio malfunction.
• Transmitters with the same frequency, such as radio head ­
phones in the vehic le or radio equipment, can cause a temporary
disruption of the system through excessive e lectromagnetic fields.
• Eliminate the interference if possible/if you can and then
proceed as follows: Turn off the engine for 20 minutes . Then drive
another 10 min. If the warning light comes on again, you should
contact your authorized Audi dealer immediately to have the
problem corrected.
• Do not use commercially available tire sealants. Otherwise, the
e lectrica l components of the tire pressure monitoring system will
no longer work properly and the sensor for the tire pressure moni­
toring system will have to be replaced by a qualified workshop. •
Certification
This device complies with part 15 of the FCC rules and RSS-210.
Operation is subject to the following conditions:
• this device may not cause harmful interference, and
• this device must accept interference received, includ ing interfer ­
ence that may cause undesired operation.
The receiver 5WK49069 uses the same schematic, assembly, layout
and PCB as 5WK49097 . 5WK49097 is a multi channe l receiver and
5WK49069 is a single channel receiver. They only differ in: SAW -
Filter V1_4 was changed from A2C00038979 to V1_2 A2C00032378,
Inductor L5_3 and L6_233nH were changed to L5_2 and L6_2 47nH.
BAND PASS FILTER V3_2 was changed from A2C00038762 to V3_3
A2C00036085. V 10: ATIC75 C1, A2C000029505 was changed to V10: .,,,
I • •