2008 AUDI A4 AVANT wheel bolts

___ T_ ir_e _ s_ a_ n
_ d_ w_ h_ e_ e_ls _________________________________________________ _
& WARNING
• Using incorrect or unmatched tires and / or wheels or improper
tire and wheel combinations can lead to loss of control , collision
and serious personal injury .
• Always u se tires , rims and wheel bolts that meet the specifica ­
tions of original factory -installed tires or other combinations that
have been specifically approved by the vehicle manufacturer.
• 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 emergen cy and then with special care and at
lower speed s.
• Never mount used tires on your vehi cle if you are not sure of
their "previous history." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control.
• All four wheels must be fitted with radial tires of the same type ,
size (rolling circumference ) and the same tread pattern. Driving
with different tires reduces vehi cle handling and can lead to a loss
of control.
• If the spare t ire is not the same as the tires that are mounted
on the vehicle -for example with winter tires -only use the spare
tire for a short period of time and drive with extra care . Refit the
normal road wheel as soon as safely possible.
• Never drive faster than the ma ximum speed for wh ich the tires
on your vehicle are rated because tires that are driven faster than
their rated speed can fail suddenly .
• Overloading tire s cause heat build -up , sudden tire failure ,
including a blowout and sudden deflation and loss of control.
• Temperature grades apply to tires that are properly inflated and
not over or underinflated .
• For technical reasons it is not always possible to use wheel s
from other vehicles - in some cases not even wheels from the
same vehicle model.
& WARNING (continued )
• If you install wheel trim discs on the vehicle wheels, make sure
that the air flow to the brakes is not blocked . Reduced airflow to
the brakes can them to overheat , increasing stopping distances
and causing a collision .
• Run flat tires may only be used on vehicles that were equipped
with them at the factory. The vehicle must have a chassis designed
for run flat tires and a factory-installed tire pressure monitoring
s ystem that indicate s a loss of tire pressure . Incorrect use of run
flat tires can lead to vehicle damage or ac cidents . Check with an
authorized Audi dealer or tire specialist to see if your vehicle can
be equ ipped with run flat tires . If run flat tires are used , they must
be installed on all four wheels . Mixing tire types is not permitted.
0 Note
• For tec hnical r eas ons, it is no t gene rally possible to use the
whee l rims from other vehicles . ihis can hold true for wheels of the
same ve hicle type.
• I f the spare tire is different from the tires that you have mounted
on y our ve hicle (f or exampl e wi nter t ires or wide p ro fi le tir es), then
use the spa re tire fo r a short per iod of time on ly and d rive with extra
c a re . Rep lace the flat t ire wi th the ti re m atc h ing t he oth ers o n you r
vehic le as soon as possib le .
• If yo u should put diff eren t w heels a nd tires on yo ur vehi cle (e. g.
winter wheels and tires), you must be certa in that the wheels and
t ires a re co mpatibl e w ith the tire press ur e m onit orin g sys te m.
Otherwise the system will regist er a ma lfunction and a fau lt
mes sage wil l be d isp layed . Fo r mo re info rmation, contact yo ur Audi
dea ler .
0 Note
• When i nsta lling new ti res, be care fu l n ot to damage t he va lves o r
tire press ure mon itoring system* sensors . .,_

Tires and wheels 1111
----------------
W For the sake of the environment
Use summer tires when weather conditions permit. They are
quieter, do not wear as quickly and reduce fuel consumption. •
Snow chains
Snow chains may be fitted only to the front wheels, and only to
certain tire sizes. Ask your authorized Audi dealer on which tire
sizes snow chains can be used.
If you are going to use snow chains, then you must install them on
the front wheels at least.
The snow chains must have low-profile links and must not be thicker
than 0.53 inch (13.5 mm), including the lock.
Remove wheel center covers and trim discs before putting snow
chains on your
vehicle => 0. For safety reasons cover caps must
then be fitted over the wheel bolts. These are available from autho­
rized Audi dealers.
& WARNING
Using the wrong snow chains for your vehicle or installing them
incorrectly can increase the risk of loss of control leading to
serious personal injury.
• Snow chains are available in different sizes. Always make sure
to follow the instructions provided by the snow chain manufac­
turer.
• When driving with snow chains never drive faster than the
speed permitted for your specific snow chains.
• Always observe local regulations .
0 Note
• Remove snow chains before driving on roads not covered with
snow to avoid damaging tires and wearing the snow chains down
u n necessarily.
• Snow chains, which come into direct contact with the wheel rim,
can scratch or damage it . Therefore, make sure that the snow chains
are suitably covered.
[ i] Tips
Where snow chains are mandatory on certain roads, this normally
also applies to vehicles with All Wheel Drive. •
Wheel bolts
Wheel bolts must always be tightened to the correct
torque.
The design of wheel bolts is matched to the factory installed rims. If
different rims are fitted, the correct wheel bolts with the right length
and correctly shaped bolt heads must be used. This ensures that
wheels are fitted securely and that the brake system functions
correctly.
In certain circumstances, you may not use wheel bolts from a
different vehicle -even if it is the same
model => page 348.
& WARNING
Improperly tightened or maintained wheel bolts can become loose
causing loss of control, a collision and serious personal injury.
• Always keep the wheel bolts and the threads in the wheel hubs
clean so the wheel bolts can turn easily and be properly tightened .
• Never grease or oil the wheel bolts and the threads in the wheel
hubs. They can become loose while driving if greased or oiled,
even if tightened to the specified torque.
.,_
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
~

_____________________________________________ W_ h_ a_t _d_ o_l
_ d_o _ n_o_ w_ ? _ __,_
/b, WARNING (continued)
• Using a bumper jack to raise the vehicle will damage the
bumper system. The jack may slip, causing injury.
• Never support your vehicle on cinder blocks, bricks or other
objects. These may not be able to support the load and could
cause injury when they fail.
• Never start or run the engine while the vehicle is supported by
the jack.
• If you must work under the vehicle, always use safety stands
specifically designed for this purpose.
• Never try and use the hexagonal socket
in the handle of the
screwdriver to loosen or tighten the wheel bolts.
• Always make sure the spare tire and even a flat tire are secured
in place and not loose, otherwise they could fly forward, causing
personal injury to passengers in the vehicle in an accident or
sudden maneuver.
• Never use the jack supplied with your Audi on another vehicle,
particularly on a heavier one. The jack is only suitable for use on
the vehicle it came with.
•
Spare wheel
The spare wheel is stored in the wheel well underneath
the floor panel in the luggage compartment.
Fig. 224 Luggage
compartment : spare
wheel
Your vehicle is equipped with a regular spare wheel. It is
held in place by an oversize screw.
Taking out the spare wheel
- Raise the floor panel at the plastic handle.
- Securely engage the handle in the luggage compartment
seal as illustrated to keep the floor panel up.
- Unscrew the knurled retainer bolt in the wheel center
=> fig. 224. Turn it counter -clockwise .
- Take out the spare wheel.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
..,.
Do-it-yourse lf service irechnical data

What do I do now? 11111111
-----------------------------------
& WARNING (continued)
mission in "P" (Park), or engaging a gear in a manual transmission
will
not prevent the vehicle from moving.
• Before you change a wheel, be sure the ground is level and firm.
If necessary, use a sturdy board under the jack.
• After installing the spare wheel, make sure that you remount
the flat tire/wheel in its storage area properly and tighten the
knurled retaining screw securely . •
Changing a wheel
When you change a wheel, follow the sequence described
below step-by-step and exactly in that order.
1. Remove the decorative wheel cover*. For more details
see also
=> page 320, "Decorative wheel covers" or
=> page 320, "Wheels with cap -covered wheel bolts".
2. Loosen the wheel bolts => page 321.
3.
Locate the proper mounting point for the jack and align
the jack below that
point=> page 321.
4. Lift the car with the jack => page 321.
5.
Take the flat wheel off and then put the spare on
=> page 323.
6. Tighten all wheel bolts lightly.
7.
Lower the vehicle with the jack.
8. Use the wheel bolt wrench and
firmly tighten all wheel
bolts=> page 321.
9. Put the decorative wheel cover* back on.
LJ}. WARNING
Always read and head all WARNINGS and information :::::> & in
"Raising the vehicle" on
page 321 and :::::, page 324. •
After changing a wheel
A wheel change is not complete without the following
actions.
-Store and secure the replaced wheel in the spare wheel
well.
-Put the tool case and the jack back in place in the luggage
compartment.
-Check the tire pressure on the spare wheel immediately
after mounting it.
- As soon as possible, have the
tightening torques on all
wheel bolts checked with a torque wrench. The correct
tightening torque is
90 ft lb (120 Nml.
- Have the flat tire
replaced as soon as possible.
[ i] Tips
• If you notice while changing a tire that the wheel bolts are
corroded and difficult to turn, then they should be replaced before
you check the tightening torque.
• Drive at reduced speed until you have the tightening torques
checked .•
Do -it -yourself service

lllffll....__W_ h_ a_ t_d_ o_ l _d _o_ n_ o_ vv_ ? ______________________________________________ _
Applies to vehi cles : wi th deco ra tive wheel co vers
Decorative wheel covers
The decorative wheel covers must be removed first to
access the wheel bolts.
Removing
Fig. 225 Wheel
change : removing the
wheel cover
-Insert the hook provided with the onboard tool kit into
the hole on the center hub piece.
-Pull off the decorative wheel cover => fig. 225 . •
App lies to ve hicles: w it h c ap-co vered whee l bolts
Wheels with cap-covered wheel bolts
The caps must be removed first from the wheel bolts
before the bolts can be unscrewed.
Removing
Fig. 226 Wheel
change: removing the
wheel bolt caps
-Push the plastic clip provided with the on board tool kit
down over the wheel bolt cap until it engages.
-Pull on the properly engaged plastic clip to extract the
cap=> fig. 226.
Refitting
-Place the caps over the wheel bolts and push them back
in.
The caps are there to protect and keep the wheel bolts clean. •

What do I do now ? -
------------------'
Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising the
vehicle .
Loosening
Fig . 227 Wheel
c h an ge : loose ning t he
w heel b olts
- Fit the wheel bolt wrench over the whee l bo lt and push it
down as far as it w ill go.
- C lose your grip around the
e n d of the wrench ha n dle for
maximum torque and t urn the wheel bolts counter-clock ­
wi se abo ut
one single turn in the direction of ar ro w
=> fig. 227.
Tight ening
Fit the wheel bolt wrench over the wheel bolt and push it
down as far as it w ill go .
- C lose your grip around the
end of the wrench handle for
maximum torque and turn each wheel bolt clockwise
until it sits tight.
LJ}. WARNING
• Using f orc e without control t o speed t he wh eel ch a nge up can
c au se th e vehicle t o slip off the jack and cau se seriou s per son al
injurie s.
• Do n ot lo osen the wheel b olt s more than one turn before y ou
r a is e th e vehi cle with the jack .
-Ris k of inju ry!
[ i] Tip s
• Never try and use the hexagonal socket in the handle of the
screwdriver to loosen or tighten the wheel bolts .
• If a whee l bolt sits very tight, you may find it easier to loosen by
carefully pushing down on the end of the whee l bolt wrench w ith
one foot only . As you do, ho ld on to the car to keep yourself stab le
and take care not to slip. •
Raising the vehicle
The vehicle must be lifted with the jack first before the
wheel can be removed.
F ig . 228 W hee l
c ha nge : m ount ing
po ints
for th e li fting
j ack _,.
Do-it-yourself service irechnical data

What do I do now? -
------------------'
Taking the wheel off /putting the spare on
Follow these instructions step-by-step for changing the
wheel
Fig . 230 Wheel
change : using the
screwdriver handle
(with the blade
removed) to turn the
bolts
Fig . 231 Wheel
change : alignment pin
inside the top hole
After you have loosened all wheel bolts and jacked the
vehicle off the ground, perform the following steps to
remove and replace the wheel:
Removing the wheel
-Use the hexagonal socket in the screwdriver handle to
completely turn out the topmost wheel bolt and set it
aside on a
clean surface => fig. 230.
-Screw the threaded end of the alignment pin from the
tool kit hand -tight into the now vacant bolt hole
=> fig. 231 .
-Then completely unscrew the other wheel bolts as
described above.
-Take off the wheel leaving the alignment pin in t he bolt
hole.
Putting on the spare
-Lift the spare wheel up and carefully slide it over the
alignment pin to guide it in place.
-Use the hexagonal socket in the screwdriver handle to
screw in and t ighten all wheel bolts
slightly .
-Unscrew the alignment pin and insert and tighten the
remaining wheel bo lt slightly like the rest.
-Turn the handle on the jack counter-clockwise to lower
the vehicle until the jack is fully released.
-Use the wheel bolt wrench to tighten all wheel bolts
firmly =>
page 327. Tighten crosswise, from one bolt to
the (approximately) opposite one, to keep the wheel
centered.
[ i] Tips
Never try and use the h exagonal socket in the handle of the screw -
driver to loosen or tighten the wheel bolts.
.,
Do-it-yourse lf service irechnical data