2008 AUDI A4 AVANT air condition

Instruments and warnin g/indi cat or li ghts
Safety belts i
This warning/indicator light reminds y ou to put on your
safety belt.
The .ft warning/indicator light i lluminates when the ignition is
switched on to remind the driver and (on USA mode ls only) any front
passenger to put on the safety belt. Additiona lly, an acoustic
warn ing (gong) w ill also sound.
For more
information~ page 176 , "Safety belt warning light 4". •
Turn signals ¢ ¢
The in dicator light flashes when you use either turn
signal.
Whenever you use the left ¢ or the right ¢ turn signal, the indicator
l ight flashes. W hen you use the emerge ncy flasher, both indicator
lights f lash .
I f one of the turn signal light bulbs burn out, the turn signal will
flash twice as fast as normal. •
Electronic Stabilization Program (ESP) fJ
The warning/indicator ligh t monit ors the electr onic s tabi ­
lization program.
The ~ warning/indicator light has the fol lowing functions:
• it flashes while you are driving, when the ESP is working .
• it illuminates when you switch on the ignition for approximately
2 seconds as a funct ion check.
• it illuminates when there is a ma lfunction in the ESP.
• it illuminates after the battery has been disconnected .
• it illuminates continuous ly when the ESP is switched off . •
it illuminates if there is a malfunction in the ABS, since the ESP
is part o f the ABS system.
If the ESP warning/indicator light illuminates and stays on after you
have started the engine, this may mean that the control system has
temporar ily switched o ff the ESP . If this is case, you can reactivate
the ESP by switching the ignition off and then on again . The
warning/indicator light should go out to show that the system is
ful ly functional again .
I f the battery terminals were disconnected and re -connected, the
vehic le was jump started or the battery is very weak, the ESP sensor
system goes through a learning p rocess for the firs t few yards.
D uring th is time, t he ind icator l ight i llu minates. It goes out as soo n
as the learning process is comp lete.
For more information about the
ESP ~ page 236. •
Generator 0
T his warning/indicator light detects a malfunction in the
generator or i n t he vehicle's elec trical system.
T he O warning/indicator light i lluminates w hen you switch on the
ignition and must go out after the engine has started .
I f the
O warni ng/ind icator light illum inates while you a re driv ing,
you shou ld contact your authorized Audi dealer . Since the vehicle
battery is dischargi ng, you should sw itch off any unnecessary elec ­
trical consumers (for example, the air conditioner) .
0 Note
If the _JL warning/indicator light (ma lfunction in the engine coo ling
system) i n the instrument cluster shou ld
i llumi nate ~ page 31, stop
the ve hicle and turn o ff the engine . The coo lant pump is not work ing
-this can cause engine damage! •

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

You can switch off the open-door-or-lid warning display by briefly pressing the On Board computer control
but tons => page 39. The
open door or trunk warn ing will, however, illuminate again as soon
as there is a change in the position of the doors, engine hood or
trunk lid. •
On-Board Diagnostic system (OBD)
Malfunction Indicator Lamp (MIL) (USA
models) / (Canada models)
The Malfunction Indicator Lamp (MIU in the instrument cluster
=> page 19, fig. 9 is part of the On -Board Diagnostic (OBD II) system.
The warning/indicator light il luminates when the ignition is
switched on and goes out after the engine starts and the idle has
stabi lized . This indicates that the MIL is working prope rly.
If the light do es not go out after the engine is started, or illuminates
while you are driving, a malfunction may exist in the engine system.
If the light starts flashing, the catalytic converter could be damaged .
Continue driving
w ith redu ced pow er (avoiding sustained high
speeds and/or rapid accelerations) and have the condition
corrected. Contact your authorized Audi dealer.
If the light illuminates, the e lectronic speed limiter may also be
malfunctioning . For more
information=> page 28, "Electronic speed
limiter".
An impr operly c lo se d fuel filler cap may al so cau se th e MIL l amp to
illumi nate
=> page 269. •
Controls and equip ­
ment
Dri ver inf orma tio n di spl ay
On -Board Diagnostics
F ig. 15 Locatio n of
Da ta Li nk Co nnecto r
( DL Cl
On-Board Diagnostics monitors the components of your emission
control system . Each control led component in your engine system
has been assigned a code. In case of a malfunction, the component
wil l be identified and the fault stored as a code in the control
modu le memory.
The M IL lamp may a lso illuminate if there is a leak in the on-board
fuel vapor recovery system. If the light illuminates after a refuelling,
pull off the road and stop the vehicle, then check that the fuel fi ller
cap is proper ly closed
=> page 269.
In order to make an accurate diagnosis, the stored data can only be
displayed using special diagnos tic equipment (generic scan tool for
OBD).
In order to connect the special diagnostic equipment, push the plug
into the Data Link Connector (DLC). The DLC is located to the right of
the engine hood release
lever => fig. 15 .
Your author ized Audi dealer or a qua lified service station can inter­
pre t the code and perform the necessary repair. •
irechnical data

Driver inf orma tion di spl ay
Electronic speed limiter
Your vehicle may be factory equipped with tires that are rated for a
maximum speed of 130 mph (210 km/h}. This is less than the
maximum speed of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operated at excessive speeds, your vehicle also has an electronic speed limiter . The elec ­
tronic speed limiter prevents your vehic le from going faster than the
tire speed rating. For more
information~ page 305, "New tires and
r eplacing tires and wheels" .
If the vehicle approaches the tire speed rating, the engine control
unit wi ll turn off the fuel injectors. You will notice an immediate loss
of engine power and a drop in road speed.
If the engine control unit receives faulty vehicle road speed signals,
t he Malfunc tion Indicator Light (MIU will illuminate. If this occurs,
contact the nearest authorized Audi dea ler for ass istance.
&_ WARNING
Al wa ys o bserve th e pos te d speed l imit s and adjust your sp eed t o
s uit preva ilin g road, traffic and weath er cond ition s. Ne ver drive
yo ur vehicle f aster than the ma xim um spe ed rating of the ti re s
install ed .•
Auto-Check Control
Introduction
Fi g. 16 Au to-Check
C o nt rol: a ll syste ms
c h eck ed OK
Whenever the ignition is turned on, Auto -Check Control checks the
proper functioning of important vehicle components and systems.
Auto -Check Contro l keeps up its continuous monitoring of vehic le
systems even as you are driving.
If Auto Check senses an irregular condition or a malfunction
requiring urgent repair, it generates a specific symbol or short
message in the instrument cluster center display . You will also hear
an audible warning tone . The disp lays a re color coded in either red
or yellow depending on their level of priority.
A red symbol means
D anger , a yellow symbol indicates Warning .
Along with some particular red symbols, a message will appear in
the display to alert the driver to certain conditions. •

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

Fig. 39 Center display :
starting menu
In order for the tire pressure monitoring system to operate
accurately, you have to re-save the specified pressures
whenever you adjust tire pressure, for example, when the load condition of your vehicle changes. Proceed as follows:
Correct the tire pressure
- check the pressure in the tires (including the spare tire),
- adjust the air pressure as needed in accordance with the
information on the tire pressure label.
Reset the system
Push the [RESET] button=> page 48, fig. 38 until Display
Type=> fig. 39 appears.
- Push in the upper (lower) protrusion on the function selector switch
@ to select the Set option. •
Controls and equip ­
ment
Driver information display
Applies to veh ic les : w ith tir e pressure mon itoring system
Storing the adjusted tire pressure (step 2)
Fig . 40 Center display :
tire pressure selected
Fig. 41 Center display:
storing the tire pres­
sure
- Push the [RESET]® button => page 48, fig. 38.
- Push in the upper (lower) protrusion on the function
selector switch
@ to select the Tire pressure option
=> fig. 40.
irechnical data

• USA models: illumin ation of the in strument clu ste r (gauge s and
needle s), dash and center con sole around the gear shift lever i s
c ontrolled by a light sen sor l oca ted in the in strument panel . The
instrument panel illum ination will automatic ally become dimmer
a s the d aylight f ade s aw ay a nd e ventuall y will go out completel y
wh en out side light is very low . Thi s is to remind you , the driver , to
s witch on the he adlight s before it get s too dark.
• Canada model s: instrument panel illum ination will sta y br ight
rega rdle ss of the inten sity of ambient light . Al ways be aw are of
changes in outside light conditions while you are driving . Respond
in time to fading daylight by tu rning the light switch to position
1[D
(or "AUTO" if your car is equipped with this feature) to turn on your
he adlight s.
•
App lies to veh icle s: w it h xe non head lig hts
Xenon headlights
After sta rting the engine, the xenon head lights are automatica lly
adjusted to the load and angle of the veh ic le ( for example, during
accel eration and braking) . This prevents oncoming traffic from
experienc ing unnecessary headlight glare from your xenon head ­
lights.
I f the system is not operating properly, a warning symbol in the
Auto-Check Control is
displayed=> page 34. •
Controls and equip ­
ment
Cl ea r vision
Emergency flasher ~
The emergency flasher ma kes other motorists aware that
you or your vehicle are in an emergency situation .
Fig. 77 Ce nter
co nso le: e merg en cy
fl as he r sw it ch
- Press the switch &1. ~ fig. 77, to switch t he eme rgency
flasher on or off.
When the emergency flasher is on, all four turn signal blink at the
same time. The turn signal indicator lights ¢
9 in the instrument
c luster, as we ll as the light in the emergency flasher
switch ~ blink
likewise.
The emergency flasher wi ll automatically switch on if you are in an
accident where the airbag has deployed .
[ i] Tip s
You shou ld switch on the emergency flasher when :
• you are the las t vehicle standing in a traffic jam so that any other
vehicles coming can see you, or when
• your vehicle has broken down or you are in an emergency situa -
tion, o r when _.,

Warm and cold -
----------------
Warm and cold
Climate controls
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the fo llowing settings:
- Select and set a temperature between 71 °F (+22 °C) and
84 °F (+29 °C).
- Press the [AUTO
I button.
With this setting, you attain maximum comfort in the least amount
of time . C hange this sett ing, as des ired, to meet your personal
needs .
The climate contro ls are a combination of heating, ventilation and
cool ing systems, which automatica lly reduce humidity and coo l the
air inside your vehicle .
The air temperature, air flow and air distribution are automatically
regu lated to achieve and maintain the desired passenger compart ­
ment temperatu re as quickly as possible.
The system automatically compensates for changes in the outside
temperature and for the intensity of the sunlight entering the
veh ic le. We recommend you use the
Automati c mode=> page 127
for year-round comfort.
Please note the follow ing :
Turn on the air conditioner to reduce hum idity in the veh ic le. This
a lso prevent the windows from fogging up.
Controls and equip ­
ment
When the outside temperature is high and the air is very humid,
c o ndensat ion from the evaporator may drip under the vehicle. This
is normal and does not ind icate a leak.
If the outside temperature is low, the fan norma lly on ly switches to
a higher speed once the engine coolant has warmed up suff iciently .
The air conditioner temporarily switches off when you drive off from a standstill using ful l throttle to save engine power.
The compressor also switches off if the coolant temperature is too
high so that the engine can be adequate ly cooled under extreme
loads .
Air p ollut ants filt er
The air po llutants fi lter (a combined part ic le filter and activated
charcoal filter) reduces or e liminates outside air pol lution (dust, or
pollen) from enter ing the vehic le .
The air po llutants filter must be changed at the intervals specified
in you r Maintenance
& Wa rranty booklet, so that the air cond itioner
can proper ly work.
If you drive your vehic le in an area with high air pol lution, the filter
may need to be changed more frequently than speci fied in your
Audi Maintenance
& Warranty book let. If in doubt, ask your autho­
ri zed Aud i Service Adv isor fo r advice .
& WARNING
Reduced vi sibility i s da ng erou s and can cause accident s.
• For safe driving it is very important that all windows be free of
ice , snow and cond ensa tion .
• Fully familiarize yourself with the proper us e and function of
the heating and ventilation sy stem and e speci ally how to defog
and defrost the window s.
...