224 T ire s and w heel s
handling when in good condition and properly
inflated
¢ .&..
We recommend that all work on tires and
wheels be perfo rmed by an authorized Audi
dealer. They are familiar with recommended
procedures and have the necessary special
too ls and spare parts as well as the proper fa-
cilities for disposing of the old tires.
Authorized Audi dealers have the necessary
information about technica l requirements for
installing or changing tires and rims.
Replacing t ires and wheels
Tires should be replaced at least in pairs and
not individua lly (for examp le both front tires
or both rear tires together).
Be sure to read and heed the t ire pressure
monito ring system* info rmation
¢ page 230.
Always buy replacement radial tires that have
the same specifications as the tires approved
fo r your vehicle by Audi. Replacement t ires
must always have the same load rating speci-
fication as the original equipment or approved
optional tires listed in the table
¢page 216 .
Audi-approved specification t ires are specially
matc hed to your vehicle and its load limits,
and can contribute to the important road hold-
ing, driving characteristics, and safety of the
vehicle. The table
(¢page 216) lists specifica -
tions of the t ires approved for the Audi mod-
els covered by your Owner's Literature.
The tire pressure label located either on driv-
er's side B-pill ar or inside the fue l filler flap
(¢ page 216 , fig. 168) lists the specificat ions
of the original equipment tires installed on
your vehicle at the time it was manufactured.
Federal law requires tire manufacturers to
place standard ized information on the side-
wall of all tires¢
fig. 171. This information
ident ifies and describes the fundamental
characterist ics, the quality grade of the tire
and also provides a tire ident ificat ion number
for safety standard cert ificat ion and in case of
a recall.
Tire specifications
Knowledge of ti re specifications makes it eas-
ier to choose the correct tires. Radial ti res
have the tire specifications marked on the
sidewall, for example:
P225 / 45 R 17 91H XL
This conta ins the following information:
P Indicates the tire is for passenger cars
(where applicable)
225 Nominal tire width in mm of the tire
from sidewall edge to sidewall edge. In
general, the larger the number, the wider
the tire
45 Height/w idth ratio in percent (aspect ra-
t io)
R Tire construct ion: Radial
17 Rim diameter code (in inches)
91 Load rating code
H Speed rat ing letter code
XL (or "xl", "EXTRA LOAD" or "RF") indicates
that the t i re is "Reinforced" or an "Extra
Load" t ire
M+S (or "M/5") Indicate s that the ti re has
some mud and snow capability
The tires could also have the information of
direction of rotat ion
¢ page 212.
Tire manufacturing date
The manufacturing date is also indicated on
the tire sidewall (possibly only on the
inner
side of the wheel):
"DOT ... 2211 ... "means, for example, that
the tire was produced in the 22nd week of
2011.
Speed rating (letter code)
The speed rating letter code on the wheels in-
dicates the maximum permiss ible road speeds
¢ .&.in Winter tires on page 228.
P up to 93 mp h (150 km/h)
Q up to 99 mp h (158 km/h)
R up to 106 mph (170 km/h)
S up to 110 mph (180 km/h)
T up to 118 mph (190 km/h)
U up to 124 mph (200 km/h)
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