2008 AUDI A4 AVANT gas type

Fue l su pply and fillin g yo ur fu el tank
Ble nd of g aso line and ethanol (grain alco hol or ethyl alco ho l!
• Anti-knock index must be 87 AKI or higher.
• Blend must not contain more than 10% ethanol.
Blend of ga solin e and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than 15% MTBE.
Sea sonall y adj usted ga soline
Many gasoline grades are blended to perform especia lly we ll for
winter or summer drivi ng . Dur ing seasona l change -over, we suggest
that you fil l up at busy gas stations where the seasonal adjustment
is more likely to be made in time .
0 Note
• Methanol fuels which do not meet these requirements may
cause corrosion and damage to plastic and rubber components in
the fue l system.
• Do not use fuels that fail to meet the specified criteria in this
chapter .
• If you are unable to determine whether or not a particu lar fuel
b lend meets the specifications, ask your service station or its fuel
supplier.
• Do not use fuel for w hich the contents ca nnot be identified.
• Fue l system damage and performance problems resulting from
t he use of fuels different fro m those specified are no t the responsi ­
bility of Audi and are not covered under the New Vehicle or the
Em ission Control System Warranties .
• If you experience a loss of fue l economy or driveabi lity and
performa nce problems due to the use of o ne of these fuel blends,
we recommend that you switch to unblended fuel. •
Gasoline additives
A major concern among many auto manufacturers is carbon
depos it build-up caused by the type of gasoline you use.
A lthough gasoline grades differ from one manufacturer to another,
they have certain things in common. All gaso line grades contain
substances that can cause deposits to co llect on vital engine parts,
such as fue l injectors and intake valves. A lthough most gaso line
brands include additives to keep engine and fue l systems clean,
they are not equal ly effective .
Audi reco mmends using TOP TIER De tergen t Gasoline. For more
information on TOP T IER Detergent Gasoline, please go to the offi ­
cia l website (www.toptie rgas .com).
After an extended period of using inadequate fuels, built-up carbon
deposits can rob your engine of peak performance .
(D Note
Damage or malfunction due to poor fuel qua lity is not covered by
the Aud i New Veh ic le Limited Warranty. •
Fuel tank
Fuel filler neck
The fue l fi ller neck is located o n the r ight rear side pane l be hin d the
fuel filler flap.
I f the power locking system shou ld fail, you can stil l open the flap
manual ly - for detai led instructions
see=> page 271 .
You can find the fuel tank capacity of your vehicle in Techni cal Dat a
=> page 343. ~

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_ r_e _s_ a_n_ d_ w_ h_ e_e _ l_s __ lllll
Tires and wheels
Tires
General notes
Tires may be the least appreciated and most abused parts
of a motor vehicle.
T ires may be the least appreciated and most abused parts of a
motor vehic le. Tires are, however, one of the most important parts
of a vehicle, particu lar ly considering the comparat ive ly sma ll patch
of rubber on each tire that assures that a ll-important contact
between you, your vehicle and the road .
Maintaining the correct tire pressure, making sure that your vehicle
and i ts tires do not have to carry more weight than they can safely
handle, avoiding damage from road hazards and regular ly
inspecting tires for damage inc luding cuts, s lashes irregular wear
and overa ll condition are the most important things that you can do
to help avoid sudden tire failure including tread separation and
b lowou ts .
Av oiding d am ag e
If you have to drive over a curb or similar obstacle, drive very slowly
and as close as possible at a right angle to the curb.
A lways keep chemica ls including grease, o il, gasoline a nd brake
fluid off the tires.
I nspect the t ires regularly for damage (cuts, cracks or blisters, etc .l.
Remove any foreign bodies embedded in the treads.
Storing tire s
Mark tires when you remove them to indicate the direction of rota ­
t ion . This ensu res you to be ab le to mou nt them correctly w he n you
reinstal l them. When removed, the whee
ls or tires should be stored in a coo l, dry
and preferably dark place.
St ore tires in a vertical posit ion i f th ey are not mounted on r ims, in
a horizontal position if they are mounted on rims.
New tire s
New tires have to be broken in => &.
The tread dept h of new tires may vary, according to the type and
make of tire and the tread pattern .
Hidden damage
Damage to tires and rims is often not readily visible. If you notice
unusua l vibration or t he veh ic le pul ls to one side, this may indicate
that one of the tires has been damaged . The tires must be checked
immediately by an author ized Audi dealer or qualified workshop .
Unidire ction al tires
A unidirectio nal tire can be ide ntif ied by arr ows on the s idewa ll, t hat
point in the direction the tire is designed to rotate. You must fo llow
the specified direct ion of ro tation . This is necessary so t hat these
tires can deve lop their optimum characteristics regarding grip, road
noise, wear and hydroplaning resistance . For more info rmation
=> page 324.
& WARNING
Ne w tire s or tire s that are old , wo rn o r damaged cannot p ro vide
maximum control and braking abilit y.
• New tires tend to be slippery and mu st be brok en in . To redu ce
the ri sk of lo sing control , a c ollision and seriou s per sonal injuries ,
dri ve w ith special ca re for the fi rst 350 mile s (560 km l.
• Driving with worn or damaged tire s can lead to lo ss of control ,
sudden tire fa ilure , in cluding a blowout and sudden deflation ,
.,_
Vehicle care

___ T_ ir_e _ s_ a_ n
_ d_ w_ h_ e_ e_ls _________________________________________________ _
make, there w ill be six to eight of t hem evenly p laced around the
tir e. M arks o n the tire s idewall ( for example "TWI " or oth er sy mb ols)
indicate th e positions of the tread wear indicators. Worn tires must
b e re placed . Di fferen t fig ure s m ay apply i n other
c ountr ies=> & .
Tire pressure
Incorr ect tir e p ress ure c auses prematu re wear a nd can ca use
sudden tir e blow -out . For th is r eason, tir e pressur e must b e check ed
at leas t once a month
=> pa ge 299 .
Dri ving style
Drivi ng fa st aro und curv es, heavy acce le ra ti on and ha rd bra kin g
increase tire wear .
Rotating tires for more even wear
For all four tires on your vehic le to have the same service life, we
r ecom mend t hat the front a nd rea r tires ar e rotate d accord ing to the
tire manufacturer 's suggested tire rotation interva ls. Please
r e m emb er t he fo llo wi ng :
• Ti re rotation interva ls m ay d iffer from th e vehic le servic e inter ­
vals outl ined in y our M aintenance and Warran ty Boo kle t.
• T he longer one tire is used in one location on the vehicle, the
mor e it wea rs a t ce rtain points ; the re fo re, we rec omm end that yo u
fo llow t he ti re manufactu rer's su ggested tir e rotat ion int ervals .
• Vehi cle s with front -wh eel d rive e xper ience mo re trea d wea r on
the front wheels compared to al l-wheel drive (quattro®l .
• Ple as e ro tat e ti res as
sh ow n=> page 303, fig. 220.
• Extra care must be taken when rotating direction -specific tires
=> pag e 32 4.
Wheel balancing
T he wheels on n ew vehic les are bala nced. However, various situa ­
tions during eve ryday driving can cause them to become unba l­
ance d, res ulting i n vi brat ions you ca n us ual ly f eel thro ugh t he
steering whee l. U
nba lanc ed wh eels must be rebalanced to avoid excessive wear on
s tee ring, s uspen sio n an d tir es. A w heel m ust also be reba la nced
when a new tire is install ed.
Incorrect wheel alignment
Incorrect whee l alignment can cause excessive tire wear, impairing
t he sa fety o f the vehicl e. If ti res sh ow ex cessiv e w ear, h av e the
whee l al ignm ent check ed by an autho riz ed Aud i d eal er or qualifi ed
w ork shop.
All Wheel Drive
Ve hicl es wi th qu attr o® must alw ays h ave t ires of t he sa me siz e,
construction and tread type . For deta ils
see=> page 242 .
& WARNING
Sudden tire failure can lead to loss of control , a crash and serious
personal injury!
• Never drive a vehicle when the tread on any tire is worn down
to the wear indicators .
• Especially in wet and slick driving situations , a preferably large
profile depth of the tires is necessary , and an approximately
similar profile depth of the front and rear axle tires.
• The diminished driving safety , caused by too small of a tire
profile, is negatively perceivable especially in handling , in danger
of hydroplaning when driving through deep puddles and ponds,
when driving around curves , and in braking behavior.
• Worn tires are a safety hazard , they do not grip well on wet
roads and increase your risk of "hydroplaning" and loss of control.
• Always keep chem icals that can cause tire damage , such as
grease, oil, gasoline and brake fluid away from tires .
• Tires age even if they are not being used and can fail suddenly ,
especially at high speeds. Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
lower speeds .
~