2008 AUDI A4 AVANT inflation pressure

___ T_ ir_e _ s_ a_ n
_ d_ w_ h_ e_ e_ls _________________________________________________ _
The tire pressure label on your Audi lists the recommended cold tire
inf lation pressures for the new, original equipmen t tires that were
on your vehic le at the time it was manufactured . For the location of
the
labe l=> page 297, fig. 217 .
Most tires lose a ir natural ly over time. They can a lso lose some air if
you drive over a potho le or hit a curb wh ile parking. It is usually not
possible to see whether the radial t ires used today are under inflated
just by looking at them.
Therefore, be su re to check tire pressures at least once a month and
always before going on a long trip . Make sure to take the number of
people and the amount of luggage into account when adjusting tire
pressure for a trip -even one that you wou ld not cons ider to be
" long ."
See => page 301, "Tires and vehicle load limits" for more
important i nformation .
A lways use an accurat e tire pressure gaug e when checking and
adjusting inflat ion pressures. Check a ll of the tires and be sure not
to forget the spare tire . If the pressure in any tire is too high when
the t ire is "cold," let air o ut of the t ire slowly with the edge of the tire
gauge and keep check ing the pressure until you reach the pressure
that is correct for the load (passengers and luggage) and kind of
driving you p lan to do .
I f the pressure in any tire is too low, note the difference between the
pressure in the co ld tire and the pressure you need and add the air
that you need to reach the correct pressure for the vehicle load
(passengers and luggage) fo r the t ires on your veh ic le as listed on
the on your vehicle and in this manual and the kind of driving you pl an to do .
Never exceed the m aximum inflation pressure li sted on the tire
s idewall for an y re ason .
Remem ber that the vehic le manufacturer, not t he tire manufacturer,
determines the correct tire pressure for the tires on your vehicle .
I t is important to check the tire pressure when the tires are cold.
• Read the required tire pressure from the t ire pressure label
located either on driver 's side B -pillar or inside the fuel fi ller flap . •
Turn the va lve stem cap counter -clockwise to remove it from the
t ire valve .
• Place the air pressure gauge on the valve.
• The tire pressures should only be checked and adjusted when
the tires are cold. The s lightly raised pressures of warm tires must
not be reduced.
• Adjust the tire pressure to the load you are carrying.
• Reinstal l the va lve stem cap on the valve .
When should I check the tire pressure?
The correct tire pressure is especially important at high spe eds . The
pressure should the refore be checked at least once a mo nth and
a lways before starting a journey. Do not forget to check the tire pres ­
sure for the spare whee l
=> page 317.
Wh en should I adjust th e tir e pre ssur es?
Adjust t he tire pressure to the load you are carry ing . After changing
a wheel
o r replacing whee ls you have to ad just the tire pressures on
a ll whee ls . In addition, on vehicles w ith tire pressure monito ring
system* you must then store the new tire pressures in the system
=> page 45.
& WARNING
Incorrect tire pre ssure s and /or underinflation can lead sudden tire
f ai lure , loss of control , collision , seri ous per sonal injury or even
death.
• When the w arning symbol
(l) appe ars in the in strument
clu ster , stop and inspect the tire s.
• Incorrect t ire pres sure and /or underinflat ion can cause
increa sed tire wear and can affect the handling of the vehicle and
s topping ability.
• Incorrect tire pres sures and /or underinflation can also lead to
s udden tire fa ilure , inc luding a blowout and sudden defl ation ,
cau sing los s of vehicle control .
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__________________________________________________ T_ ir_e _ s_ a_ n
_ d_ w_ h_ e_ e_ls _ __. 11111
/b, W ARNING (continued )
• Never mount u sed tires on your vehicle if you are not sure of
their "previou s history. " Old used ti res may ha ve been damaged
even though the damage cannot be seen that can lead to sudden
tire failu re and loss of vehicle control.
•
New tires and replacing tires and wheels
N ew tires and wheels have to be bro ken i n.
12
9
Fig . 22 1 Tire spe cificati on code s on the sidewall of a tire
No .
0
@
®
©
©
Description
Passenger car tire (where applicable)
Nominal w idth o f tire in mi llime ters
Ratio of height to width (aspect ratio)
Radia l
Rim diameter code
© Load index and speed rating
0
©
©
@)
1ju.s. DOT tire identification number
Sever snow cond itions
Tire ply composition and materials used
Max imu m load rating
@ Treadwear, traction and temperature grades
@ Maximum permissible inflation pressure
The t ires and rims are ess ential parts of the ve hicle's design . T h e
tires and rims approved by Audi are specially matched to the char ­
ac ter is ti cs of th e vehicle and can mak e a major contribution to good
road holding and safe hand ling when in good condition and prop ­
erly i nflated
=> /b, .
We recommend that a ll work on tires and wheels be perfo rmed by
an au thorized Audi dealer . They a re familia r with recommended
procedures and have the necessary specia l tools and spare parts as
we ll as the proper facilities fo r dispo sing of the o ld tires.
Authori zed Audi d ea lers have the n ecessa ry in for mati on abo ut tec h-
nical requirements for instal ling or changing tires and rims . _...
Vehic le care Technical data

________________________________________________ T_ i
_ r_e _s_ a_n_ d_ w_ h_ e_e _ l_s __ l!III
W up to 168 mph (270 km/h)3
)
Y up to 186 mph (298 km/h)3
l
Your vehicle is normally factory equipped tires, which possess
excellent driving characteristics and give your Audi optimum
driving comfort. An electronic speed
limiter => page 28will normally
prevent your vehicle from going faster than the tire speed rating
=> & .
U .S. DOT Tire Identification Number (TIN) and tire
manufacture date
This is the tire's "serial number". It begins with the letters "DOT"
and indicates that the tire meets all federal standards. The next two
numbers or letters indicate the plant where it was manufactured,
and the last four numbers represent the week and year of manufac­
ture . For example, the numbers 2205 mean that the tire was
produced in the 22th week of 2005. The other numbers are
marketing codes that may or may not be used by the tire manufac­
turer. This information is used to contact consumers if a tire defect
requires a recall.
Tire ply composition and materials used
The number of plies indicates the number of layers of rubber-coated
fabric in the tire. In general, the greater the number of plies, the
more weight a tire can support. Tire manufacturers also must indi­
cate the materials in the tire, which include steel, nylon, polyester,
and others.
Maximum Load Rating
This number indicates the maximum load in kilograms and pounds
that can be carried by the tire.
Tire quality grading for treadwear, traction, and
temperature resistance
Tread wear, traction and temperature grades=> page 309 . Maximum Permissible Inflation Pressure
This number is
the greatest amount of air pressure that should ever
be put in the tire under normal driving conditions.
Replacing tires or rims on vehicles equipped with tire
pressure monitoring system*
The wheels on your vehicle are equipped with a sensor which
constantly monitors the air pressure inside the tire, and then trans­
mits this information to the tire pressure monitoring system*. If you
are going to replace the wheel rims on your vehicle, make sure the
new rims also have these sensors. The sensors must be compatible
with the tire pressure monitoring system* on your vehicle.
If you install rims, which do not have the sensors, or have sensors
which are not compatible, then the tire pressure monitoring
system * will not work properly. In this case, the tire pressure moni­
toring system* would not be able to monitor the tire pressure or
warn you if it is necessary .
• The battery inside of the tire pressure sensor has a limited
service life.
• Always drive with the valve stem caps securely mounted. We
recommend using factory installed valve stem caps . Ask your autho­
rized Audi dealer to replace lost valve stem caps.
The installation of replacement tires with steel cord body plies in
the tire sidewall may cause malfunction of the tire pressure moni­
toring system, and is not recommended (cord material information
in molded on the tire sidewall).
Always check your tire pressure monitoring system* indicator after
replacing one or more tires on your vehicle. If the tire pressure
monitoring system * indicator flashes, or is on, your system is not
working properly. Your replacement tire might be incompatible with
your tire pressure monitoring system*, or some component of the
tire pressure monitoring system* may be damaged.
....
Vehicle care

-
Tires and wheels
----------------
&, WARNING (continued )
• Only u se wheel bolts that belong to the rim being installed.
• Never use different wheels bolt s on your vehi cle .
• Alway s maintain the correct tightening torque for the wheel
bolts to reduce the risk of a wheel los s.
If the tightening torque of
the wheel bolts is too low , they can loosen and come out when the
vehi cle is moving. If the tightening torque is too high , the wheel
bolts and threads can be damaged and the wheel can become
loose .
0 Note
The specified torque for the wheel bolts is 90 ft lb (12 0 Nm) with a
tolerance of± 7,4 ft lb(± 10 Nm). Torque whee l bolts diagonally.
After changing a wheel, the torque must be c hecked as soon as
possible with a torque wrench -preferably by an authorized Audi
d ea ler or qua lifi ed works hop.•
Low aspect ratio tires
Your Aud i is factory -equipped with low aspect ratio tires . T hese tires
have been thorough ly tested and been selected specifical ly for your
mod el for t he ir superb perf or mance, r oad feel and ha ndling u nder
a variety of driving conditions . Ask your authorized Audi dealer for
mo re deta ils.
The low aspect ratio of these tires is indicated by a numeral of
55 or
less
i n the ti re's size designatio n. The numeral rep resents the ra tio
of the t ire's sidewa ll height in relation to its tread width expressed
in percentage . Conventiona l tires have a height/width ratio of 60 or
m ore.
The performan ce of low -aspe ct-ratio tires is part icularly sensitive to
improper inflation pressure . It is therefore important that low
aspe ct ratio tires are inflated to the specified pressure and that the
inflation pressure i s regularly checked and maintained. Tire pres- sures should be checked at least once a month and always before a
long
trip => page 299, "C heck ing tire pre ssure" .
What you can do to avoid tire and rim damage
Low as pect r ati o ti res can be da maged more easi ly by impact w ith
potho les, curbs, gullies or ridges on the road, particularly if the tire
i s u nde rinfl ated.
I n order to min imize the occurrence of impact damage to the t ires
of your vehic le, we recommend that you observe the fo llowing
precautions :
• Always maintain recommended inflation pressures . Check your
t ire pr essu re every 2,000 miles (3,000 k m) a nd add air if necessary .
• Drive careful ly on roads with potholes, deep gu llies or ridges.
T he im pac t from driving t hroug h or ov er suc h ob stacl es ca n
damage your tires. Impact with a curb may also cause damage to
yo ur tir es .
• After any impact, immediately inspect your tires or have them
inspec te d by the neares t au thori ze d Aud i dealer. Replac e a
damaged tire as soon as possible.
• I nspect you r ti res eve ry 2,0 00 m iles (3,000 km) for damage and
wear. Damage is not always easy to see. Damage can lead to loss of
a ir a nd und eri nfl ation, whic h cou ld eve ntual ly ca use tire fa ilur e. If
you be lieve that a tire may have been damaged, rep lace the tire as
s o on as p ossi ble.
• T hese tires may wear more quickly than others .
• P lease a lso remember that, whi le these tires de liver respons iv e
handling, they may ride less comfortably and make more noise t han
other choices.
Reduced performance in winter /cold season
c onditions
A ll tir es a re desig ned f or certai n purposes. The low a spect rati o,
u ltra hi gh pe rf ormance t ires or igin a lly ins tal led on your ve hicle are
intended for maximum dry and wet road performance and handling .
Th ey a re not su itab le fo r co ld, snowy or ic y weat her co nd it io ns. If
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___ w_ h_ a_t _ d_ o_ l_d _ o_ n_ o_w _ ? ______________________________________________ _
Storing the replaced wheel
- Place the replaced wheel inside the spare wheel well in
the luggage compartment.
- Tighten the knurled retaining screw clockwise to secure
the wheel in place.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
& WARNING
Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident.
• Never store the spare wheel or jack and tools
in the passenger
compartment.
• Always store all jacking equipment, tools, and the spare wheel
in the luggage compartment.
• Tighten the knurled retaining screw for the spare wheel
securely.
[ i] Tips
Check the inflation pressure of the spare tire periodically to keep the
tire ready for use. •
Wheel change
Before changing a wheel
Follow these points for your own and your passenger's
safety when replacing a wheel.
After you experience a tire failure, pull the car well away
from moving traffic and try to reach
level ground before
you
stop ~& .
-All passengers should leave the car and move to a safe
location (for instance, behind the
guardrail) ~& .
-Apply the parking brake firmly ~& .
-Move selector lever to position P on an automatic trans-
mission; put manual transmission in
first gear~& .
-If you are towing a trailer: unhitch the trailer from your
vehicle.
- Take the
tool case and the spare tire ~ page 316 out of
the luggage compartment.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn off
the engine, turn the emergency flasher on and use other warning
devices to alert other motorists.
• Make sure that passengers wait
in a safe place away from the
vehicle and well away from the roadway and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed . When one
front wheel is lifted off the ground, placing the Automatic Trans-
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111'1_....::::A::.:l:.!: p :.:h..:.: a:::.:: b:.::e :.:t::i c::.::: a.:..l ..:.: in :..:.:: d:.:e :.:x::..... ___________________________________________ _
Centigrade
Switching between Centigrade and Fahre nheit ...... .... .... ... ....
128
Changing a flat tire .. .... .... .... 50,318
Changing a wheel ................... 318
Changing engine oil ...... .... ...... . 279
Chassis
Undercoating .. .... .... .... .... ..
261
CHECK button . . . . . . . . . . . . . . . . . . . . . . . 16
Checking
Battery acid leve l . . . . . . . . . . . . . . . . .
288
Eng ine coo lant level . ... .. .... .... 281
Checking tire pressure ............... 299
Child restraint
Danger of using child restraints in the front seat . . . . . . . . . . . . . . . . . . . . . .
189
Child restraints
What types of chi ld restraint anchors are
ava ilable? . .... .... .... ........
223
Where can I get additional information
about child restraints? ... .... ....
224
Child safety .. .... .... ....... ... 210 ,215
Additional information .... .... .... 229
Booster seats . . . . . . . . . . . . . . . . . . . . 218
Convertible child safety seats . . . . . . 216
Convertible locking retractor . . . . . . . 220
Guidance fixtures for lower anchorages
226
Important safety instructions for using
ch ild safety seats .... .... ... ....
213
Important things to know when driving
with chi ldren ...................
210
Infant seats ..................... 215
Installing a child restraint using the
LATCH system ... ... .... .... ....
228
Lower anchorages .... ....... .... . 225
Mounting and re leasing the anchorage
hook .... .... ...... .... ... .. ...
229
Older children and safety belts 219
Safety belts and o ld er children .. ... 219
Tether anchors ...... .... .... .... 229
Tether strap .. ....... .... .... .... 230
Which rest raint system should my o lder
chi ld wear? .. ...... .... ... .. ...
219
Child safety lock ... .... ... .. ...... ... 63
child safety seat
LATCH system ....... .... .... ....
228
Child safety seats .............. .... . 215
Convertible locking retractor ....... 220
How do I properly insta ll a child safety
· h ' I 7 213 seat in my ve 1c e, .. .... .... ... .
Installing .... .... ... .. .... ......
220
Safety instructions .... .... .... ... 213
Cigarette lighter ........ .... ... .. ... 120
Cleaning
Alcantara (synthetic suede) ........
264
Engine compartment .. ... ... .. ... 265
Fabrics and fabric coverings ... .... 261
Instrument pane l .. ... .. ...... .... 262
Interior ...... .... ... .. .... .... .. 261
Leather . . . . . . . . . . . . . . . . . . . . . . . . . 263
P lastic and vinyl . .... .... ... .. ... 258
Plastic parts . .... .... .... ... .... . 262
Safety belts . . . . . . . . . . . . . . . . . . . . . 265
Trim strips . .... .... ... .... .... .. 257
trim strips . .... ...... .... ... .. ... 258
Cleaning and protection ........ .... . 254
Climate controls ...... .... .......... 125
Air distribution .... .... ..... .. ... 130
Air outlets . .... .... ... ........... 131
Air recirculation ... .... .... ..... .. 128
AUTO (standard setting) .... .... ... 127
Automatic a ir recircu lation ... ..... 129
controls . . . . . . . . . . . . . . . . . . . . . . . . 126
Defrosting/defogging .... .... .... . 131
Description ... .... .... ........... 125
ECON .... ... .. .... ...... .... .... 128
Fan .. .... .... .... .... ... .... ... 129
Key -coded setting . .... .... .... ... 132
Recommended settings ........... 125
Setting the temperature .... .... ... 127
Switching between Fahrenheit and
Centigrade . .... .... .... .... ....
128
Switching the air conditioning on and off
128
Using the c limate control economically ..
132
Warm and cold ... .... .... .... ... 125
Clock ... .... .... .... ... .. ...... .... . 14
Closing
Power sunroof ....................
68
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . 124
Co ld tire inflation pressure .... .... ... 297
Coming-home-function .... .... ...... . 77
Compartments in the door trims ..... . 124
Compass mirror .. .... .... ..... .. .... 93
Consumer Information .... ........... 345
Continuously Variable Transmission (CVT)
See multitronic™ .. .... ........... 149

-Alphabetical index _ _e ____________________________________ _
Waxing .... .... ....... .... .... ... .. 257 Why safety belts? ....... .... .... 176, 177 y
Wear indica tor ..................... 303 Windows
Weatherstrips .... ... .... .... .... ... 259 Cleaning ........................ 258 Yellow symbols ... .... .... ...... ..... 33
Weights ........................... 341 Convenience close/open feature ..... 59
What happens if you wear your safety be lt too Defogging · · · · · · · · · · · · · · · ·
...... 131
loose? ........................ 182 Defrosting ...................... 131
What happens to unbelted occupants? . 178 Rapid defrosting/defogging ........ 131
What impairs driving safety? .. ...... . 167
What should I do after changing a wheel? .. 300
What should I do after replacing whee ls? ...
300
Wheel bolts Torque ......................... 311
Wheel change . . . . . . . . . . . . . . . . . . . . . . 318
Wheels .. .... .... .... ....... .... ... 293
Cast a lloy ... .. .... .... .......... 260
Checking tire pressure ............ 299
Cold tire inflation pressure ...... .. 297
Genera l notes .... .... .... ...... . 293
G lossary of tire and loading terminology
294
New tires and whee ls . . . . . . . . . . . . . 305
Stee l whee ls .......... .......... 259
Tires and vehicle load limits . . . . . . . 301
When must a safety belt be replaced? .. 180
When must the airbag system be inspected? 198
When should I adjust the tire pressures?
300
When should I check the tire pressures? 300 Windshield washer fluid
Low level .... ....... ...... .... ... 34
Windshield wipers Installing new wiper b lades ......... 88
Washer reservoir . . . . . . . . . . . . . . . . . 291
Winter driving Windows . . . . . . . . . . . . . . . . . . . . . . . 258
Winter operation
Battery .. .... ....... ...... .... .. 285
Coolant system .................. 280
Ti res ....... .. .... .... .... ... ... 242
Winter tires .............. .......... 310
All -whee l drive ... .... ....... ..... 310
Wiper and washer system .. .... .... ... 85
Intermittent wiping ...... ....... ... 85
One-tap wiping ...... ...... .... ... 85
Rear window wiper .......... .. .... 86
Wiper blades Installing new wiper blades ....... .. 88
Replacing rear window wiper blades . 89
Worn brake pads .. ........ ... .... .... 34
X
Where can I find the tire pressures for my Xenon headlights ..... .... .... .... ... 79
car? ...... ... .... .... .... .... . 299 Xenon-L ights ... .. ...... .... ... .. ... 328