2008 AUDI A4 AVANT maintenance

Vehicle literature
In addition to this Owner's Manual, your Audi comes with a Mainte­
nance
& Warranty booklet.
Moreover, depending on the model and the equ ipment, there may
be additiona l instruction book lets delivered with your vehic le (for
examp le, Operating Instruct ions for your Sound System, Navigation
System etc .) .
I f you are missing one of these publ ications, or if you believe that
the information is not comp lete, contact your authorized Audi
dea ler for assis tance.
The Maintenance & Warranty booklet
exp lains how you can keep your Audi i n top driving cond it ion by
having it serviced regularly . A lways have the Maintenance booklet
with you w hen you take your vehicle to an autho rized Audi dea ler for
service. Your Audi Service Adviser wil l record each schedu led
service and can answer any questions you may have regarding how
to maintain your vehicle.
In Canada,
the vehicle literature is a lso availab le in French. To obtain a copy,
contact your dealer or write to:
Au Canada, on peut se procurer un exemplai re en
frani;ais de ce
document
aupres du concessionnaire ou de:
Volkswagen Canada, Inc.
Cl ient Assistance
Assistance a la Clientele 777 Bay ly Street, West,
A jax, Ontar io L 1 S 7G7
If you sell your Audi
a ll l iterature should be left in the vehicle to make the Warranty terms
as wel l as all operating, safety and ma intenance information avail ­
able to the next owner .
Controls and equip­
ment Safety first Vehicle operation
V
ehi cle literat ur e
If you change your address or if you bought this
Audi used
be sure to send in a " Notice of Address C hange"/ "Notice of Used
Car Purchase" post card. This card can be found in the Maintenance
& Warranty booklet o r obtained from your authorized Aud i dealer.
It i s in your own inte re st th at w e are able to cont act you should the
need arise .•
Vehicle care Do-it-yourself service Technical data

Driver inf orma tion di spl ay
Driver information display
Introduction
Applies to vehicles: w ith Driver information display
General notes
The driver information display inside the instrument
cluster provides you, the driver, with important informa­ tion.
Fig. 1 O Ins tru ment
c lu st er: ce nte r dis play
The driver information display is located in the center of the instru­
ment
cluster:::> fig. 10.
The driver information system updates important information in the center display in clear view of the driver . In an easy to understand
format, the display tel ls you how your vehicle is functioning
at th e
c urr ent m om ent .
For example, the display can te ll you how many
miles (ki lometers) you can still drive until it is time to bring your
vehic le to your authorized Audi dealer for a scheduled Maintenance
Service. This feature helps preventing costly repairs. It is just one of
many different items o f information available for recall. The display also gives you a "status report" whenever the
sou
nd sys te m and
n av igatio n
systems are being used.
Detailed instructions for operating the Aud i Naviga tion System* are
provided in separate manuals.
[ i] Tips
If your vehic le has an automatic transmission, the various display
contents will appear only after you have moved the selector lever
into
R , D or S. •
Driver information display with on -board
computer
Radio display
Outside air temperature
Door open indicator
Selector lever position tiptronic®
Speed limiter
Auto Check system Driver information
Parking brake warning
Service interval disp lay
Headlight/taillight malfunction ::::> page25
=:> page25
=:> page26
=:> page 144
=:> page34
::::> page 28
::::> page 29
=:> page29
=:> page 17
=:> page 35

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
..,_

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.
...

-Airbag system ---=--.:..,.._ _________________________________ _
&, WARNING (continued )
cellular telephones and CB radios, etc .) must be performed by a
qualified technician who has the training and special equipment
necessary .
• For any work on the airbag system , we strongly recommend
that you see your authorized Audi dealer or qualified workshop .
• Never modify the front bumper or parts of the vehicle body .
• Always make sure that the side airbag can inflate without inter ­
ference :
- Never install seat covers or replacement upholstery over the
front seatba cks that have not been specifically approved by
Audi.
- Never use additional seat cushions that cover the areas
where the side airbags inflate.
- Damage to the original seat covers or to the seam in the area
of the side airbag module must always be repaired immedi­
ately by an authorized Audi dealer .
• The airbag system can be activated only once. After an airbag
has inflated , it must be replaced by an authorized Audi dealer or
qualified technician who has the technical information , training
and special equipment necessary.
• The airbag system can be deployed only once. After an airbag
has been deployed, it must be replaced with new replacement
parts designed and approved especially for your Audi model
version. Replacement of complete airbag systems or airbag
components must be performed by qualified workshops only .
Make sure that any a irbag service action is entered in your Audi
Maintenance
& Warranty booklet under AIRBAG REPLACEMENT
RECORD .
• In accidents when an airbag is deployed, the vehicle battery
separates the alternator and the starter from the vehi cle electrical
system for safety reasons with a pyrotechnic circuit interrupter.
-Work on the pyrotechni c circuit interrupter must only be
performed by a qualified dealer -risk of an accident !
&, WARNING (continued )
-If the vehicle or the circuit interrupter is scrapped, all appli­
cable safety precautions must be followed.
•
Other things that can affect Advanced Airbag performance
Changing the vehic le 's suspension system can change the way that
t he A dvance d Ai rbag S ystem p erf o rm s in a c rash. F or example,
using tire -rim combinations not approved by Audi, lowerin g the
ve hicle , ch ang ing the stiff ness of the suspe nsion, includ ing the
springs, suspension struts, shock absorbers etc. can chang e the
fo rces that a re measured by the airbag senso rs and se nt to the elec­
tronic control u nit. Some suspension chan ges can, for exampl e,
i n crease the fo rce level s measured by the sen so rs and ma ke the
a irbag s yste m de plo y in cras he s in w hi ch it wou ld not de ploy if th e
changes had not been made. Other kinds of changes may reduce
t h e fo rce lev els measu red by the senso rs a nd p reven t the airb ag
from dep loying when it should.
T he sens ors i n the safe ty belt buckle f or the dri ve r and front
passeng er seat tell t he electronic contro l modu le if the safety belt is
la tched o r not. If t he sa fe ty bel t i s being used, the fro nt ai rbag wi ll
deploy at a s ligh tly high er rate o f veh icle dece lerat io n th an if th e
safety be lt is not being u sed . Th erefo re , in a particula r co llision, it is
poss ib le th at a n airbag will not deplo y at a seat ing po sit io n wh ere
the safety be lt is being used but wi ll inflate at the pos ition where the
safety be lt is not bei ng used . It is im po rta nt tha t noth ing i nte rfere
with the safety belt buc kles so that the sensors can send the correct
i nf orm atio n abou t s afe ty belt use to th e electr onic co ntrol uni t.
~

____________________________________________ ln_t_ e_ l_ li _,..g "- e_ n
_ t_t_e _c_ h_ n_o _l_o _....g ,_,y'-----'IJIII
& WARNING
Although the ABS is very effective, always remember that braking
capability is limited by tire traction. Always adjust your driving
speed according to the road and traffic conditions. Do not let the
extra safety afforded by the ABS tempt you into taking extra risks.
The ABS cannot overcome the laws of physics.
[ i] Tips
• If ABS is not functioning properly, a warning light will come on.
See~ page 21.
• If a fault occurs in the ABS , the EDL is also not functioning. This
is indicated by the ABS warning light. •
Brake assistant
The brake assistant is designed to achieve the optimum
braking effect.
The brake assistant helps to increase the effective braking power
and thus to achieve a shorter stopping distance . If the driver
presses the brake pedal very quickly, the brake assistant automati ­
cally boosts the braking force to the maximum level, up to the point
where the anti-lock brake function (ABS) intervenes to stop the
wheels from locking. You should then keep the brake pedal pressed
until the vehicle has braked to the required speed. The brake assis ­
tant switches itself off as soon as you release the brake pedal.
The brake assistant will not be operative if there is a malfunction in
the ABS.
Controls and equip­
ment Safety first
Vehicle operation
& WARNING
Please remember that the accident risk always increases if you
drive too fast, especially in corners or on a slippery road, or if you
follow the vehicle ahead of you too closely. An increased accident
risk cannot be compensated even by the brake assistant, so
always maintain a safe speed. •
Servotronic® -advanced power
steering system
The power steering systems uses the power of the
running engine to allow precise steering with little effort. Your Audi is equipped with the electronically controlled
Servotronic® advanced power steering system. It adjusts
the degree of steering assistance to the roadspeed.
The advanced Servotronic ® power steering system senses the road
speed and electronically adjusts power assistance to provide
comfortable and safe steering response exactly matched to the
vehicle speed .
Power steering will not work if the engine is off. As a result, the
steering wheel will be hard to turn.
The power steering fluid level is checked during the scheduled
maintenance services.
0 Note
If there is an electronic malfunction, servotronic will still function
like a conventional power steering system, providing a constant
steering support force that is no longer proportionate to the vehicle
speed . This is most noticeable when turning the steering wheel at
low speeds (for example when parking), -more effort will be
required than usual.
.,.
Vehicle care Do-it-yourself service Technical data

llffll.,__ __ D_r_ iv _ in_.... g,_ a_n_ d __ e_n _v_ ir_o_ n_ m_ e_n_ t _____________________________________________ _
New brake pads
Remember that new brake pads do not have a full braking
effec t during the first 250 miles (400 kilometers) after they
are i nstalled .
New brake pads have to be "burn ished in" befo re they have opti mal
grab =>& .
During the break -in period, you s hou ld avo id putti ng severe loads
on the brakes . Severe loads include, for examp le, sudden hard
braking, in particular at very h igh speeds or, for example, on moun ­
t ain passes .
& WARNING
New brake p ad s don't h ave th e be st sto pping p ower a nd mu st b e
" brok en -in " durin g th e initial 100 to 1 50 mil es (150 t o 200 kil ome ­
t e rs) of norm al cit y dri ving . You can comp en sa te for thi s by
pr ess ing the brak e ped al mor e firmly . Thi s al so appli es later when
ne w pad s a re in sta lled. •
Catalytic converter
It is very important that your emission control sys tem
(catalytic conver ter) is functioning properly to ensure that
y o ur vehicle is running in an environmentally sound
manner.
-Always use lead-free gasoline => page 267, "Fuel supply".
-Never run the tank down a ll the way to empty.
-Never put too much motor o il in your engine => page 278,
"Add ing eng ine oil -Neve r try to push -or tow -s ta rt yo ur vehic le.
The catalytic converter is an efficient "clean-up " device built into the
exhaust system of the vehicle. The catalyt ic converter burns many
of the po llutants in the exhaust gas before they are released into the
atmosphere.
T he exc lusive use o f un leaded fue l is critica lly important for the l ife
of the catalytic converter and proper functioning of the engine.
& WARNING
• Do not park or operate th e veh icle in ar eas wh ere the hot
ex hau st sys tem m ay come in contac t w ith dr y gra ss, bru sh , fuel
s pill or other material which can cau se a fire .
• Do not appl y additi ona l under coating or ru stpr oofing on or
ne ar the e xhau st m anifol d, ex haust pipe s, ca ta lytic converter or
he at shield s. Du ring dri ving , the sub sta nce u sed f or under coating
c ould overhe at and cau se a fir e.
0 Note
• Be aware that just one tank filling with leaded fue l wi ll already
ser iously degrade the performance of the catalyt ic converter.
• Do not exceed the correct engine oi l
level=> page 278.
• Do not drive until the fuel tank becomes comp letely empty . The
engine could misfire . Unburned fuel could also get into the exhaust
system and this could cause the catalytic conver ter to overheat .
• Do not turn off the ignition wh ile the vehicle is moving.
• Do not continue to operate your vehicle under these conditions,
as otherwise fuel can reach the cata lyt ic converter . This cou ld result
in overheating of the converter, requiring its rep lacement .
• To assure eff icient operat ion of the Em iss ion Control System:
- Have your vehicle maintained properly and in accordance with
the service recommendations in your Maintenance
& Warranty
booklet.
..,

______________________________________________ D_ ri_v _ i_ n _, g..,_ a_ n_d _ e_ n_ v_i_r o_ n_m_ e_ n_t _____ ffllll
- Lack of proper maintenance as wel l as improper use of the
vehic le wi ll impair the func tion of the emission control system
and cou ld lead to damage .
<£> For the sake of the envir onm ent
Even when the Emission Control System is operating properly, the
exhaust gas can have a su lfur -like exhaust gas sme ll under some
operat ing states . Th is depends on the sulfur content of the fuel
being used. Using a different brand of fue l may he lp, or fil ling the
tank with lead -free super grade gasol ine. •
Avoid damaging the vehicle
When you are driving on poor roads, or over curbs, steep ramps,
e tc., make certain that low- lying parts such as spoilers and exhaust
system parts do not bottom out and get damaged.
This is especial ly true for vehicles with low -s lung chassis (sports
chassis)* and ful ly loaded vehicles .•
Operate your vehicle economically
and minimize pollution
General
Y o ur personal style of driving will determine the economy
of your vehicle, as well as exhaust and noise levels.
Fuel economy, env ironmental impact, and wear on your engine,
brakes and t ires largely depend on three factors :
• your personal driving sty le
• operat ing cond it ions
• technica l limitat ions
Controls and equip­
ment Safety first Vehicle operation
If you anticipate what you need to do next and drive economica
lly,
you can easily cut your fuel consumptio n by 10 -15 percent . This
section wil l give you some tips on how you can help the environ­
ment and your pocketboo k.
[ i ] Tips
The cons umption estimates as pub lished by ENV IRO NM EN TAL
PRO TECTION AGENCY (EPA) and Transport Canada may not corre ­
spond to your actua l consumption on the road, which wi ll vary
depending upon veh icle load and speed, road and weather condi ­
tions, trip length, etc. •
Drive smoothly and keep a lookout ahead
Vehicles use the most fuel when they ore accelerating .
-Avoid unnecess ary accelerating and brak ing.
Vehic les use the most fue l when they are accelerating . If you ant ici ­
pate what is going to happen ne xt, you wi ll need to brake less and,
thus , acce lerate less. Let the vehicle coast whenever poss ib le -for
examp le when you see that the next traffic light is red. •
Avoid full throttle
Driving at moderate speeds saves fuel and improves your
mileage.
- Try and keep we ll below your car 's max imum speed.
Acce lerating gent ly reduces fue l consump tion , engine wear, and
does no t disturb the environme nt.
Fue l consumption, exhaust emissions and engine noise increase
disproportionately at h ig h speeds . If you drive at approx imate ly
three quarters of top speed, fuel consumpt ion wil l be reduced by _,,,
Vehicle care Do-it-yourself service Technical data