Audi R8 2009 Owner's Manual page 220

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T _i _ r_ e_ s _ a _n _ d_w _ h _e _e _ ls _________________________________________________
_
New
tires
and
replacing
tires
a nd wheels
New tires and wheels have to be broken in.
Fig. 127 Tire sp ecificat ion cod es on t he sidewa ll of a t ire
No.
G)
®
©
©
©
©
0
©
Description
Passenger car t ire (w here appl icab le)
Nominal width of tire in millimeters
Ratio of heigh t to width (aspect rat io)
Radial
Rim diameter cod e
Load index and speed rating
U.S. DOT tire identification
number
Severe snow conditions
©
@
@
@
Tire ply composition and materials used
Maximum load rating
Treadw ear, t ract io n and temperature g rades
Maximum permissab le inflation pressure
The tires and rims are essential parts of the vehicle 's design . The
tires and rims approved by Audi are special ly matched to the char-
acteristics of the vehicle and can make a major contribution to good
road ho lding and safe hand ling when in good condit ion and prop -
erly inflated =>
& .
We recommend that all work on tires and wheels be performed by
an authorized Audi dealer . They are fam iliar with recommended
procedures and have the necessary special tools and spare parts as
well as the proper fac ilities for d isposing of the old tires.
Authorized Audi dea lers have the necessary information about tech-
nical requirements for installing or changing tires and rims .
R e placin g ti res and wh ee ls
Tires should be replaced at least in pairs and not individ ually (for
example both front tires or both rear tires together) .
Be sure to read and heed the information to the tire pressure moni -
toring system=> page 220.
Always buy replacement radial tires that have the same specifica -
tions as the tires approved for your vehicle by Audi. Replacement
tires must always have the same load rating specification as the
orig inal equ ipment or approved optiona l t ires listed in the table
=> page 211.
Audi -approved spec ification ti res are specially matched to your
vehic le and its load limits, and can contribute to the important road -
holding, driving characteristics, and safety of the vehicle . The tab le
(::::>
page 217) lists specifications of the tires approved f or the Aud i
models covered by your Owner's Literature.
..,_

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