2008 AUDI S8 wheel alignment

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Incorrect wheel alignment
Incorrect wheel alignment can cause excess ive tire wea r, impairi ng
the safety of the vehic le. If tires show excessive wear, have the
whee l alignment c hecked by an au th o rize d Audi deale r or qualifie d
wo rkshop.
All Wheel Drive
Vehicles with quattro® must always have tires of the same size, construc tion and tread type. F or details see
~ p age 273 .
& WARNING
Sudden tire failure can lead to los s of control, a crash and serious
personal injury !
• Never drive a vehicle when the tread on any tire is worn down
to the wear indi cators .
• 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 chemicals that can cause tire damage , such as
grease, oil , gasoline and brake fluid aw ay 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 speed s.
• Never mount used tires on your vehicle 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 los s of veh icle control. •
New tires and replacing tires and wheels
N ew t ires and wheels h ave t o be broke n in.
Fig . 2 76 T ir e specification code s on the sidewall of a tire
No .
G)
0
©
©
©
©
Description
Passenger car tire (where applicable)
Nominal width of tire in millimeters
Ratio of height to width (aspect ratio)
Radial
Rim diameter code
L o ad in dex and s peed rat ing

llffl!I What do I do novv?
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Tools
The vehicle tools are stored in the luggage compartment
lid.
Fig . 281 Trunk lid:
Opening the cover
Fig . 282 Trunk lid:
Vehicle tools
-To open the cover, turn the retainer in the direction of the
arrow and pull the cover down
~ page 350, fig. 281.
The onboard tool kit includes:
• Hook for removing wheel covers *
• Plastic hook to remove wheel bolt covers
• Whe el bolt wr ench
• Alignment pin for changing wheels
• Screwdr iv e r with reversible blade •
10 x 13 open ended wrench
• Towing loop
[ i] Tips
Some of the on board items listed above are provided on certain
models only or are optional extras .•
Spare wheel
The spare wheel is stored in the wheel well underneath
the floor panel in the luggage compartment.
Fig . 283 Luggage
compartment spare
wheel
Your vehicle is equipped with a regular spare wheel. It is
held in place by plastic retaining knurled 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. 283. Turn it counter-clockwise .
- Take out the spare wheel.

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Taking the wheel off /installing the spare
Follow these instructions step-by-step for changing the
wheel
Fig . 289 Changing a
wheel: using the
screwdriver handle
!with the blade
removed) to turn the
bolts
Fig . 290 Changing a
wheel: alignment pin
inside the top hole
After you have loosened all wheel bolts and raised the
vehicle off the ground, remove and replace the wheel as
follows:
Removing the wheel
- Use the hexagonal socket in the screwdriver handle to
completely remove the topmost wheel bolt and set it
as ide on a
cl ean surface => fig. 289. -
Screw the threaded end of the
alignment pin from the
tool kit hand-tight into the empty bolt
hole => fig. 290.
- Then remove the other wheel bolts as described above .
- Take off the wheel leaving the alignment pin in the bolt
hole.
Putting on the spare wheel
- Lift the spare wheel and carefully slide it over the align­
ment pin to guide it in place.
- Use the hexagonal socket in the screwdr iver handle to
screw in and tighten all wheel bolts
slightly.
- Remove the alignment pin and insert and t ighten the
remaining wheel bolt slightly like the rest.
- Turn the jack handle counter-clockwise to lower the
vehicle until the jack is fully released.
- Use the wheel bo lt wrench to tighten all wheel bolts
firmly=> page 354. Tighten them crosswise , from one
bolt to the (approximately) opposite one, to keep the
w heel centered .
[ i ] Tips
Never use the hexagonal socket in the handle of the screwdriver to
loosen or tighten the wheel bolts .
• Pull the reversible blade from the s crewdriver before you use the
hexagonal socket in the handle to turn the wheel bolts.
• When mounting tires with
unidirectional tread design make sure
the tread pattern is pointed the right way ::::>
page 357.
• The wheel bolts should be clean and easy to turn . Check for dirt
and corrosion on the mating surfaces of both the wheel and the -.,