wheel alignment AUDI S8 2011 Owners Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2011, Model line: S8, Model: AUDI S8 2011Pages: 302, PDF Size: 76.07 MB
Page 250 of 302
248 Tires and wheels
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correct tire pressure and driv·
ing style.
F ig. 1 86 Tire tread: tread wea r ind icators (TWI)
( r------ ,1
\ ...__ _____ ____,.
F ig. 1 87 Rotat ing t ires for more ev en wea r
Tread Wear Indicator (TWI)
The origi na l t ires on your veh icle have
1/16 inch (1.6 mm) high "wear indicators"
c::> fig . 186 running across the tread. Depend ·
i ng on the make, there will be six to eight of
them evenly p laced around the t ire. Marks on
the tire sidewa ll (for example "TWI" or other
symbols) indicate the positions of the tread
wear ind icators . Worn t ires must be replaced .
Different fig ures may apply in o ther countries
c::> & .
Tire p ressure
Incorrect tire pressure causes premature wear
a nd can cause sudden t ire blow-out. For th is
reason, tire pressure must be checked at least
once a month
c::> page 244 .
Driving style
Driving fast aro und curves, heavy acce leration
and hard braking increase tire wear.
Rotating tires for more even wear
F o r all four tires on your ve hicl e to h ave the
same service life, we recommen d that the
front and rear t ires are rotated according to
the tire manufact urer's suggested tire rota·
tion intervals. Please remember the follow
ing :
- Tire rotation intervals may differ from the
vehicle service inte rva ls o utlined in your
Warranty
& Maintenance booklet .
- The longer one tire is used in one location
on the vehicle, the more it wears at certain
points; therefore, we recommend that y ou
follow the tire manufacturer's suggested
tire rotation intervals .
- Veh icles w ith front-wheel dr ive experience
more tread wear on the fro nt w heels com·
pa red to all-wheel drive (quattro ®).
- Please rotate tires as shown
c::> fig. 187.
-Extra care must be taken when rotating di·
rection-specific tires
c::> page 267 .
Wheel balancing
The wheels on new ve hicles are balanced .
However, various situations during eve ryday
driving can cause them to become unba l·
anced, resulting in vibrat ions you can usually
feel t hrough the steer ing wheel.
Un balanced whee ls must be rebalanced to
avoid excessive wear on steering, suspension
and t ires. A whee l m ust also be reba lanced
when a new tire is insta lled.
Incorrect wheel alignment
Incor rect wheel alig nment can cause exces
sive tire wear, impai ring the safety of the veh i·
de . If tires show excessive wear, have the
whee l alignment checked by an authorized
Audi dealer or qualif ied workshop .
All Wheel Drive
Vehicles with q uattro ® mus t always have tires
of the same size, construction and tread type .
For details see
c::> page 194 . ..,.
Page 262 of 302
260 What do I do now ?
Vehicle tool kit
Vehicle tool kit and jack
The vehicle tool kit is located in the luggage
compartment under the cargo floor cover .
Fig. 193 Luggage compartmen t: ca rgo floo r cover
folded upwar d
Fig. 194 Trunk lid: Vehicle tool k it
• Lift the cargo floor by the plastic handle.
• Hook the handle into the luggage compart
men t weather strip
c> fig . 193.
• Remove the spare wheel to reach the vehicle
tool kit .
• Remove the foam p iece .
The onboard tool kit includes:
- Hooks to remove the wheel covers* or whee l
hub covers
- Plastic hook to remove whee l bolt covers*
- Wheel bolt wrench
- Alignment p in for changing wheels
- Screwdriver with reversible blade
- Towing loop
- Jack
Before storing the jack, make sure it is wound
back down as fa r as it will go.
A WARNING
-Improper use of the vehicle jack can cause
serious personal injuries .
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts can
not attain the necessary tighten ing tor
que if you use the hex head, potentially
causing an acc ident .
- The factory-supplied jack is intended on
ly for your vehicle model. Under no c ir
cumstances should it be used to lift
heavy veh icles or othe r loads; you risk in
ju ring yo urself.
- Never start the engine when the vehicle
is raised, wh ich could cause an ac ciden t.
- Support the vehicle securely with appro
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potentia l risk for injury.
- Never use the ja ck supplied with your Au
di on another vehicle, particularly on a
heavier one. The jack is only suitable for
use on the vehicle it came with.
(D Tips
- Some of the onboard items listed above
are provided on certain models only or
are optional ext ras .
- Before yo u can raise your vehicle using
the jack, you must activate the jacking mode
c::> page 265 .
Page 268 of 302
266 What do I do now ?
-Make sure that passengers wait in a
safe p lace away from the vehicle and
well away from the road and traffic.
- Make sure jack position is correct, ad
just as necessary and then continue to ra ise the jack.
- Changes in temperature or load can af
fect the height of the vehicle.
@ Tips
The vehicle jack mode switches off auto
matica lly at speeds above 10 km/h.
Taking the wheel off/installing the spare
Follo w thes e instruct ions st ep-by -step for
changing th e wh eel .
Fig. 2 02 Chan gin g a w hee l: u sing t he sc rewdr ive r ha n
dl e (w it h th e bla de r emoved ) to tu rn th e bolts
Fi g. 20 3 Changin g a w heel : a lignm en t pin inside th e
t o p hole
After you have loosened a ll wheel bolts and
ra ised the vehicle off the ground, remove and
replace the wheel as follows:
R emoving the wheel
• Use the hexagonal socket in the screwd riv
e r handle
to comp lete ly remove the top
most wheel bolt and set it aside on a
clean
surface ¢fig. 202.
• Sc rew the th readed end of the alignment
pin
from t he tool k it hand-tight into t he
empty bolt hole
r::;, fig . 203 .
• Then remove the other whee l bolts as de
scribed above.
• Takeoff the whee l leaving the a lignment pin
in the bo lt hole
r::;, (D .
Putting on the spare wheel
• Lift the spare whee l and carefu lly s lide it
over the alignment p in to g uide it in place
¢ (D .
.,. Use the hexagonal socket in the screwdriver
ha ndle to screw in and tighten a ll whee l
bolts
slightly .
.,. Remove the alignment pin and inse rt and
tighten the rem aining wheel bol t slightly
like the res t.
• Turn the jack hand le co unter-clockwise to
lower the veh icle until the jack is fully re
leased .
.,. Use the wheel bo lt wrench to tighten all
wheel bolt s firm ly
r::;, page 264 . Tigh ten
them
crosswise, from one bolt to the (ap
proximately) opposite one, to keep the
wheel cente red .
(D Note
When remov ing or installing the whe el,
the rim cou ld hit the b rake roto r and dam
age t he ro to r. Wor k caref ully and have a
s eco nd pers on h elp you.
{i) Tips
Neve r use the hexagonal socket in the han
dle of t he s crewdr iver to lo ose n or t igh ten
t he wheel bo lts .
- P ull the revers ible blade from the screw
dr iver be fore y ou use the hexagon al
so cket in the han dle to tur n the w heel
bolts.
- W he n m oun tin g ti res w ith
unidirectional
tread design
make sure t he trea d pat
t ern is poin ted t he righ t way
r::;, page267.
- T he wheel bolts shou ld be clean and easy
to t urn. Check for dirt an d corrosion on
the mating surfaces of both the w heel .,,.