2008 AUDI A4 AVANT tire pressure

Warning/indicator lights
Overview
The warning/indicator lights indicate different functions
or a p ossible malfunction.
Fig . 9 Instrume nt cluste r wi th warn ing/ ind ica tor l ights
Your vehicle is equipped with several important warning and indi ­
cator lights to help you monitor the continued reliable operation of
your vehicle
=> & .
AIR
BAG
Controls and equip ­
ment U
SA mod els:
Ma lfunction Indicato r lamp {MIU => page 20
Canad a mo del s:
Malfunction lndictor Lamp {MIU => page20
Airbag system => page 20
Inst rum ents and w arning /indi cator li ght s
Tire pressure monitoring system* => page20
CRUISE
USA model s: => page21 Cruise contro l activated
-ti(') Can ada mod els: => page21 Cruise control activated
U SA m odel s: => page 21 Anti-lock brake system {ABS)
Canad a model s: => page 21 Anti-lock brake system {ABS)
~ Safety belt => page22
·-
¢ Left turn signal => page22
Electronic stabi lization program => page22 {ESP)
D Generator => page22
D High beam => page 23
Electronic power control => page23
BRAKE
U SA model s: => page23 Brake system, parking brake set
CCD>
Canad a model s: => page23 Brake system, parking brake set •
c> Right turn signal => page 22 .,,
irechnical data

Instruments and warning/indicator lights
& 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 79.
• 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 engine hood
=> page 265 , "Engine compartment"
[ i] Tips
Many functions are monitored by the Auto-Check system
=> page 28. Malfunctions or faults will be identified either with a red
symbol (priority 1 - Danger!) or with a yellow symbol (priority 2 -
Warning). •
Malfunction Indicator Lamp (MIL)
~ (USA models)/ 0 (Canada models)
The Malfunction Indicator Lamp (MIU is part of the On-Board Diag ­
nostic (OBD II) system. The
symbol ~ lights up when the ignition is
turned on and will turn off after the engine has started and has
settled at constant idle speed . This indicates that the MIL is working
properly.
The warning light illuminates when there is a malfunction in the
eng ine electronic system. Contact your authorized Audi dealer and
have the malfunction corrected.
For more information
=> page 27. •
Airbag system ~
This warning/indicator light monitors the airbag and the
tensioner systems.
The I warning light illuminates for a few seconds each time you
switch on the ignition.
If the
~i warning light does not go out, or if it illum inates while you
are driving, or if it starts to flash, then there is a malfunction some ­
where in the system. If the light does not illuminate when you
switch on the ignition, this also means there is a malfunction.
& WARNING
If you have a malfunction in the airbag system, contact your autho­
rized Audi dealer immediately. Otherwise the airbag or the belt
tensioner may not work properly in an accident. •
Tire pressure monitoring system -telltale
indicator lamp
U)
The warning/indicator light appears in the event of a
significant loss of air pressure.
The (1) warning/indicator light illuminates for a few seconds after
the ignition is turned on as function check and then goes out.
If the
(l) symbol appears, pressure is too low in at least one tire.
When the system detects 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
authorized Audi dealer and have the malfunction corrected.
For more information
=> page 47. •

Tire pressure monitoring system
On-board computer
Audi Navigation System*
Sound system display
~ page45
~ page38
See separate man-
ual •
Fig. 1 1 Center d isp lay:
sound system
If, after switching on the radio, the Auto Check system has detected
no priority 2 malfunctions, then the "OK" will disappear and the
radio station call letters and frequency (plus any othe r additional
information) will appear in the display.
These displays appear in addition to the radio display.•
Controls and equip ­
ment
Dri ver inf orma tio n di spl ay
Outside temperature display
F ig. 12 Ce nter disp lay:
o utside te mperature
The outside temperature wil l be displayed when you switch on the
ignition~ fig . 12. If your vehicle has an Automatic transmission, the
outside temperature will appear in the disp lay only after you have
moved the selector lever into a gear (for example, when you shift
into
" D "l.
The snowflake symbo l also appears when the outside temperature
is between 41 °F (+5 °Cl and 23 °F (-5 °Cl. This is to warn you, the
driver, to be extra cautious because the road surfaces may be
ic y. If
the vehicle is at a standstill, or if you are driving at a very low speed,
the tempe rature shown in the display might be s lightly higher than
the actual outside temperature. This is caused by the heat being
radiated from the engine.
Remember, your vehicle is equipped with air conditioning and if
you change the display from °F (Fahrenheit) to °C (Centigrade), then
the outside temperature will automatically be displayed in °C (Centi -
grade)~ page 128. ...
irechnical data

Driver inf orma tion di spl ay
Several functions in your vehicle can be set, activated and
controlled by means of
Menu s. With these menus, you can addition ­
ally select which information is to be shown in the DIS (Driver Infor­
mation System) disp lay. This functions on ly with the ignit ion
switched on. Operation is controlled through the [Reset] button on
the windshield wiper
lever => page 41, fig. 29.
The
S ta rt me nu shows you the different types of d isplays:
S et
Check
Menu off
H el p•
Navigate the menu
The menu is opened using the I Reset] button and the
rocker switch on the windshield wiper lever. Inquiries and
settings are carried out.
F ig. 31 W inds hield
w ip er le ver: R es et
butt on and rocker
sw itch
[Reset] button ®=> fig. 3 1 and rock er switch @ functions
Open th e menu
- Press the [Reset) button as often as necessary until the
menu d isplay::::>
page 41, fig. 30 appears.
S elect and set
- Press the rocker switch to move to a menu display.
Sw itch operation ( up/down) resembles the disp lay .
Enter and confirm
- Press the [Reset! button.
Using the rocker switch, you can select the menus in the display or
change settings. The values selected have a red background .
By pressing the [ Reset] button, you activate the selection you made
or confirm the va lues you set. Selected functions are identified by a
check mark. •
Types of display
The DIS (Driver Information System) start menu offers a
choice am ong 4 types of displays.
The following functions reside behind the 4 types of displays in the
start
menu => page 41, fig. 30 :
Selec t se tting s
• Clock => page 43
• Computer=> page 43
• Speed alarm (speed warning) => page 35
• Tire pressure warning => page 46
• Radio display (switch on/off)
• Language
• Units (changing units of measurement for distance, fuel
consumption, time zone, temperature)

To set the date, for example, proceed as follows :
- Press the [R eset] button . The Start menu appears
=> page 41, fig . 30.
- Tap the rocker
switch => page 42, fig. 3 1 until Set
=> page 44, fig. 34 is activated.
- Press the [Reset] button. The men us avai lab le under
Set
appear.
- Tap the rocker switc h unti l
Clock => page 44, fig . 35 is
disp layed .
- Press the [Reset] button . The c lock settings menu
appears .
Continued => page 45, "Practica l examp le (part 2)" . •
Practical example (part 2)
Continue w ith se tting the date as follows :
- Tap the rocker
switch => page 42, fig. 3 1 until Date is acti­
vated.
- If there a n empty box in front o f Date, press the [Reset]
button. Now a check mark appears in t he box .
- Tap the rocker switc h until the date display is activated
and press the [Reset] button. The day flashes.
- Tap the rocker switc h up or down until the correct
number for the day appears . Press the [Reset] button .
Now the month flashes.
- Chan ge the mon th and th e year as needed in the same
way.
Controls and equip ­
ment
Dri ver information di spl ay
Continued=> page 45 , "Practical example (part 3)" . •
Practical example (part 3)
Close setting the da te as follows:
- Tap the rocker
switch => page 42, fig. 31 until Back is act i­
vated.
- Press the [Reset] button. The
Set menu appears again .
- Press th e [Reset] butto n again. The Star t menu appears
agai n.•
Tire pressure monitoring system
Applies to veh ic les: with tir e pr essure monitor in g system
General notes
As an adde d safe ty feature, your vehicle has been equ ipped wit h a
tire pressure monitoring sys tem (TPMS) that i lluminates a low tire
pressure te llta le 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.
According ly, when the low tire pressure te llta le i llum inates, you
shou ld stop and check your tires as soon as possib le, and infla te
them to the proper pressure . Driv ing on a significantly under ­
inf lated tire causes the tire to overheat and can lead to tire failure.
Under -inflation a lso reduces fue l efficiency and tire tread life, and
may affect the vehicle 's hand ling and stopping ab ility .
0 Note
• Please note that the TPMS is not a substitute for proper tire
maintenance , and it is the driver's responsibility to maintain correct
..,_

Driver inf ormation di spl ay
tire pressure, even if under-inflation has not reached the level to
t rigger il lum ination of the TPMS low tire pressure te llta le .
• Each tire should be checked month ly when cold and inflated to
the infla tion pressure recommended by the vehic le manufacturer
on the vehicle placard , tire inflation pressure label, or in chapter
=> page 297 . (If your ve hicle has tires o f a different size than t he size
indicated on the vehicle placard or tire inf lation pressure label, you
should de termine the proper tire inflation pressure for those
tires.) •
Applies to vehi cles : with tire p ress ure mo nit o ring system
TPMS malfunction indicator
Your vehic le has also been equipped with a TPMS ma lfunction indi ­
cator to indicate when the system is not operating properly. The
TPMS ma lfunct ion indicator is combined with the low tire pressure
telltale . When the system detects a ma lfunction, t he tellta le wi ll
f lash for approximately one minute and then remain continuous ly
il lum inated. T his sequence wil l continue upo n subsequent veh icle
star ts up as long as the malfunction exists.
When the ma lfunc tion ind icator is ill uminated, 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 o f rep lacement or a lternate tires or wheels on the
vehic le that prevent the TPMS from functioning properly . A lways
check t he TPMS malfunction tellta le after replac ing one or more
tires or whee ls on your v ehicle to ensur e that the replacement or
a lternate t ires and wheels al low the TP MS to continue to function
proper ly. •
Ap plies to ve hicles : w it h tir e pressu re m oni to ring sy ste m
Introduction
T he tire pressure monitoring system monitors air pressure
in all four road wheels while the vehicle is moving.
As soon as the tire pressure monito ring system se nses a significant
loss of air pressure in one or several tires, text messages and yel low
symbo ls appear in the instrument clus ter disp lay to a lert the driver.
The
(l) warning light in the instrument cluster comes on when the
t ire is significa ntly under inflated.
The warning light
(l) also lights up during a system failure .
When the whee l is turning, the system receives radio signals from
sensors located inside each tire.
A factory spare wheel is delivered with sensor . However, the spare
whee l is not checked by the ti re pressure monitoring sys tem. Such
monitoring can on ly occur after the spare wheel has been insta lled
and
initia lized => page 50.
Be aware that t ire pressure is a lso dependent o n the temperature of
the tire . For every 18 °F (1
O °C) increase in tire temperature, tire pres ­
su re increases by about 1.5 psi (0 .1 barl. The tire warms up wh ile the
vehic le is moving and t ire pressure rises. So you should adjust tire
pressure only when they are
cold, when tire temperature is roughly
the same as ambient air temperature .
I n order to keep the tire pressure moni toring system prope rly ca li­
brated, tire pressure on all four tires shou ld be checked at regular
intervals, adjusted if necessary and saved in the proper sett ing
(reco mmended
pressure) => page 48.
The tire pressure is shown on the tire pressure label. On USA vehi ­
cles, the tire pressure label is located on the dr iver's side B -pillar. On
Canada vehicles, the tire pressure labe l is located either on the
driver's side B -p illar o r inside the fue l fi ller flap. The tire pressure
label l ists the recommended cold tire inflation pressures for the
vehic le at its maximum capacity weight and the tires that were on
your vehicle at the t ime it was manu factured . For recommended tire
~

pressures for normal load conditions, p lease see chapter
~ p ag e 297 .
& WARNING
• When the tire pre ssure monitoring sy stem warning light i s lit ,
one or more of your tires is sign ifi cantly under-inflated . You should
s top and check your tire s as soon as possible , and inflate them to
the p rope r pres sure a s indicated on the vehicle's tire pre ssure
label
~ page 297 . Driving on a significantly under -inflated tire
c ause s the t ire to overheat and can lead to tire failure . Under -infla ­
tion also is likely to impair the vehicle's handling and stopping
ability .
• Do not adjust tire pre ssure when tire temperature is excessive.
Thi s could lead to serious tire damage and even cause the tire to
burst , with the additional danger of an ac cident .
<£' For the sake of the environment
Driving wi th under -inflated tires reduces fuel efficiency and tire
tread life.
[ i ] Tips
• Each tire should be checked mon th ly when cold and set to the
recommended inf lat ion pressure as specified on the tire pressure
table~ page 297 .
• The tire pre ssur e monito ring system he lp s the drive r to kee p
t rack of the tire pressures. But the d river s til l has the responsibi lity
for maintaining the correct tire p ressure .
• Tire pressure must only be adjusted when th e temperature of the
t ires is about the same as am bien t air temperatu re .
• When tires are replaced , the sensors and va lves must not be
detached or exchanged. Only the valve co re needs t o be rep laced
and, if necessary, the valve and the wheel e lectronics replaced.
Controls and equip ­
ment
Driver information display
• If you should put different whee ls and tires on your vehic le (e .g.
win ter wheels a nd ti res), you must be certa in that the wheels a nd
tires are compatible with the t ire pressure monitoring system .
O therwise the system will register a ma lfunction and a fau lt
message will be displayed. For more information, contact your Audi
dea ler .•
Ap plie s to veh ic les: with tir e pr ess ure mon ito ring syste m
Significant loss of air pressure 1
The yello w symbo l app ear s in the e ve n t of a s ignific a n t
Jo ss of air pre ss ure.
Fig . 36 Hi -lin e di splay:
y ellow s ymbol w ith
message ....
irechnical data

Driver inf orma tion di spl ay
Fig. 3 7 H i-lin e dis play:
ye llow sy mbo l w ith out
m essa ge
If the ~ warning light in the instrument cluster comes on
and then the
( symbol appears in the display=> page 47,
fig. 36 or => fig. 37, pressure in at least one tire is too low.
- Stop driving as soon as possible, without endangering yourself and other motorists.
Inspect the t ire or tires .
Change the t ire if necessary=>
page 318.
The ...., warning light in the ins trument cluster comes on when the
tire is significantly underinflated.
In addition, the tire symbol appears in the display together with
the message
Ple ase c hec k tire p re ss ure ~ page 47, fig. 36 .
After a few seconds , the message disappears again. If you would
like to show the message again, press the
I CH ECK I button.
[ i ] Tips
• In the case of an intentional loss of air pressure, for examp le,
when re -adjusting tire pressure, this has to be stored again after ­
wards~ page 48.
• 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 s tored in the system
~ page 48 .
• After changing a wheel you have to adjust the tire pressures on
all wheels. In addition, you must then initia lize the new tire pres­
sures in the tire pressure monitoring
system ~ page 50. •
Ap plies to vehic les : w it h tir e pressu re m onit oring syste m
Adjusting and storing the tire pressure
(step 1)
Only when the specified pressure is properly entered into
the system, is the tire pressure monitoring system prop ­
erly calibrated for accurate indications.
Fi g. 38 Wiper ar m:
co ntr ols fo r the t ire
press ure