,..., N 0 > 00 ,..., \D Ln ,..., \D ....
Tires and wheels
Wheels
General information
... Check your tires regularly for
damage (punctures, cuts, cracks
and bulges). Remove foreign ob
jects from the tire tread.
.,. If driving over c urbs or similar
obstacles, drive slowly and ap
proach the curb at an angle.
.,.Have faulty tires or rims re
placed immediately.
... Protect your tires from oil,
grease and fuel.
.,.Mark tires before removing
them so that the same running direction can be maintained if
they are reinstalled .
... Lay tires flat when storing and
store them in a cool, dry location
with as little exposure to light as possible.
(D Note
-Please note that summer and winter tires are designed for
the conditions that are typical in those seasons. Audi recom
mends using winter tires dur
ing the winter months. Low
temperatures significantly de
crease the elasticity of summ
er tires, which affects traction
Tires and wheels
and braking ab ility. If summer
tires are used in very cold
temperatures, cracks can form on the tread bars, result ing in
permanent tire damage that
can cause loud driving noise
and unbalanced tires.
-Burnished, polished or chromed rims must not be
used in winter driving condi
tions. The surface of the rims does not have sufficient corro
sion protection for this and
could be permanently dam
aged by road salt or sim ilar
substances.
Ti re designations
Fig. 202 Tire specification codes on the
sidewall of a tire .,.
253
Tires and wheels
(D Tires for passenger vehicles
(if applicable)
P indicates a tire for a passenger
vehicle. T indicates a tire desig nated for temporary use.
@ Nominal width
Nominal width of the tire be
tween the sidewalls in millime
ters. In general: the larger the number, the wider the tire.
@ Aspect ratio
Height/width ratio expressed as a
percentage.
@ Tire construction
R indicates a radial tire.
® Rim diameter
Size of the rim diameter in inches.
@ Load index and speed rating
The load index indicates the tire's
load-carrying capacity.
The speed rating indicates the maximum permitted speed
¢ & in
Winter tires on page 269 .
"EXTRA LOAD", "xl" or "RF" indi
cates that the tire is reinforced or
is an Extra Load tire.
Speed rat- Maximum permitted speed
ing
p
up to 93 mph (150 km/h)
Q up to 99 mph (160 km/h )
254 Speed rat- Maximum permitted speed
ing
R
u p 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)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h)al
z above 149 mph (240 km/h)al
w up to 168 mph (270 km/h)al
y up to 186 mph (300 km/h)al
a) Tire manufacturers sometimes use "ZR"
for ti res with a maximum speed above
149 mph (240 km/h).
(j) US DOT number (TIN) and
manufacture date
The manufacture date is listed on
the tire sidewall (it may only ap
pear on the inner side of the tire):
DOT ... 2215 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2015.
@ Audi Original equipment
tires
Audi Original equipment tires
with the designation "AO" or "RO"
have been specially matched to
your Audi . When used correctly,
these tires meet the highest standards of safety and handling.
An authorized Audi dealer or au
thorized Audi Service Facility will .,..
be happy to provide more infor
mation.
® Mud and snow capability
"M/5 " or "M+S" indicates the tire
has character istics that make it
suitable for driving on mud and
snow .
& indicates a winter tire .
@Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay
ers in the tire. In general: the
more layers , the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the tire. These include
steel, nylon, polyester and other
materials.
@ Maximum permitted load
This number indicates the maxi
mum load in kilograms and
pounds that the tire can carry.
@ Uniform tire quality grade
standards for treadwear ,
traction and temperature
resistance
Tread wear, traction and temper
ature ranges
¢ page 271.
~ @ Running direction
g
~ ...
'° V, ....
'° ....
The arrows indicate the running
direction of unidirect ional tires .
Tires and wheels
You must always follow the speci
fied runn ing d irection
¢ page 288 .
@ Maximum permitted
inflation pressure
This number ind icates the maxi
mum pressure to which a tire can
be inflated unde r normal operat
ing conditions.
Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto
matic transmission , power steer
ing , power brakes, power win
dows, power seats, radio, and
heater, to the extent that these
i tems are available as facto ry-in
stalled equipment (whether in
stalled or not) .
Aspect ratio
means the ratio of the height to
the width of the tire in percent .
Numbers of 55 or lower indicate a
low sidewa ll for improved steer
ing response and better overall
handling on dry pavement. .,.
255
Tires and wheels
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim .
Bead separation
means a breakdown of the bond
between components in the bead.
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the tire pressure recom
mended by the vehic le manufac
turer for a tire of a designated
size that has not been driven for more than a couple of miles (kilo
meters) at low speeds in the
three hour period before the tire pressure is measured or adjusted.
Curb weight
means the weight of a motor ve
hicle with standard equipment in
cluding the maximum capacity of
fuel, oil, and coolant, air condi
tioning and additiona l weight of
op tional equipment.
E x tra load tire
means a tire designed to operate
at higher loads and at h igher in-
2 56
flation pressures than t he corre
sponding standard tire. Extra load
tires may be identified as "XL",
"xl" , "EXTRA LOAD" , or "RF" on
the sidewall.
Gross A xle Weight Rating
("GAWR" )
means the load-carrying capacity
of a single axle system , measured
at the tire-ground interfaces.
Gross Vehicle Weight Rating ("GVWR")
means the max im um total loaded
weight of the vehicle .
Groove
means the space between two ad
jacent tread ribs .
Load rating (code)
means the maximum load tha t a
tire is rated to carry for a given in
flation pressure. You may not find
this informat ion on all tires be
cause it is not required by law .
Maximum load rating
means the load rating for a tire at
t he maximum permissible infla
tion p ressure for that tire .
Maximum loaded vehicle
weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible )
inflation p ressure
means the maximum cold infla
tion pressure to which a t ire may
be inflated. Also called "maxi
mum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms)
times the number of occupants
seated in the vehicle up to the to
tal seating capacity of your vehi
c le.
Occupant distribution
means distribution of occupants
in a vehicle.
Outer diameter
means the overall diameter of an
inflated new tire.
Overall width
means the linear distance be
tween the exteriors of the side
walls of an inflated tire, including elevations due to labeling, deco
rations, or protective bands or
ribs .
Tires and wheels
Ply
means a layer of rubber-coated
parallel cords .
Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not pre
viously considered in curb weight
or accessory weight, including heavy duty brakes, ride levelers,
roof rack, heavy duty battery, and
specia l trim .
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the beads are laid at substantially 90
degrees to the centerline of the
tread.
Recommended inflation
pressure
see ~ page 256, Cold tire infla
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at higher in
flat ion pressures than the corre
sponding standard tire. Rein
forced tires may be identified as .,.
257
Tires and wheels
"XL" "xl" "EXTRA LOAD" or "RF" I I I
on the sidewall.
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diameter
means nominal diameter of the
bead seat . If you change your
wheel size, you will have to pur
chase new tires to match the new rim diameter .
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between
rim flanges.
Sidewall
means that portion of a tire be
tween the tread and bead .
Speed rating (letter code)
means the speed at which a tire is
designed to be driven for extend
ed periods of time. The ratings range from 93 mph (150 km/h)
to 186 mph (298 km/h)
c::> table
on page 254.
You may not find
this information on all tires be
cause it is not required by law.
25 8
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the maximum permissible road
speeds
c::> .&. in Winter tires on
page 269 .
Tire pressure monitoring
system*
means a system that detects
when one or mo re of a vehicle's
tires are underinflated and illum i
na tes a low tire pressure warning
telltale .
Tread
means that portion of a tire that
comes into contact w ith the road .
Tread separation
means pulling away of the tread
from the t ire carcass .
Treadwear indicators (TWI)
means the projections within the
principal grooves designed to give
a visua l indication of the degrees
of wear of the tread. See
c::> page 262, Treadwear indicator
for mo re information on measur-
ing tire wear. .,.
Uniform Tire Quality Gr ading
is a tire information system devel
oped by the United States Nation
al Highway Traffic Safety Admin
istration (NHTSA) that is designed
to help buyers make relat ive com
parisons among tires. The UTQG
is not a safety rating and not a
guarantee that a tire will last for
a prescribed number of miles
(kilometers) or perform in acer
tain way. It simply gives t ire buy
ers additional information to
combine with other considera
tions, such as price, brand loyalty
and dealer recommendations . Un
der
UTQG, tires are graded by the
tire manufacturers in th ree areas:
treadwear, traction, and tempera
ture resistance. The UTQG infor
mation on the tires, molded into
the sidewalls .
U.S. DOT Tire Identification
Number (TIN )
This is the tire's "serial number".
It begins with the letters "DOT"
and indicates that the tire meets
all federal standards . The next
two numbers or letters indicate
the plant where it was manufac
tured, and the last four numbers represent the week and year of
manufacture. For example,
Tires and wheels
DOT ... 2215 ...
means that the tire was produced
in the 22nd week of 2015. The
other numbers are marketing co des that may or may not be used
by the t ire manufacturer. This in
formation is used to contact con
sumers if a tire defect requires a
recall.
Vehicle capacity weight
means the rated cargo and lug
gage load plus 150 lbs . (68 k ilo
grams) times the vehicle's desig
nated seating capacity.
Vehicle ma ximum load on the
tire
means that load on an indiv idual
tire that is determined by distrib
ut ing to each axle its share of the
maximum loaded vehicle weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individual
tire that is determined by dist rib
uting to each ax le its share of the
curb weight, accessory weight,
and normal occupant weigh t (dis
tributed in accordance with
c:::> ta
ble on page 265) and dividing by
two. .,.
259
Tires a nd wh eels
Occupant loading and distri
bution for vehicle normal load
for various designated seating
capacit ies
Refer to the tire inflation pres
sure label¢
page 263, fig . 205
for the number of seating posi
tions . Refer to the table¢
table
on page 265
for the number of
people that correspond to the ve
hicle normal load .
New tires or wheels
Audi recommends having all work
on tires or wheels performed by
an authorized Audi dealer or au
thorized Audi Service Facility .
These facilities have the proper
knowledge and are equipped with
the required tools and replace
ment parts.
.,. New tires do not yet have the
optimum adhesion properties .
Drive carefully and at moderate
speeds for the first 350 miles (500 km) with new tires .
.,. Only use tires with the same de
sign, size (rolling circumference)
and as close to the same tread pattern as poss ible on all four
wheels .
260
.,.Do not replace tires individually .
At least replace both tires on the
same axle at the same time.
.,. Audi recommends that you use
Audi Original equipment tires . If
you would like to use d ifferent
tires, please note that the tires may perform differently even if
they are the same size ¢
,&.
.,. If you would like to equip your
vehicle with a tire/rim combina
t ion that is different from what
was installed at the factory, con
sult with an authorized Audi dealer or authorized Audi Service
F acility before making a pur
chase ¢&, .
The spare tire* is different from
the regular tires installed on the
vehicle -for example, if winter
tires or wide tires are installed -
then only use the spare tire* tem
porarily in case of emergency and
drive carefully while it is in use. It
should be replaced with a regular
tire as soon as possible.
On
all wheel drive vehicles, all
four wheels must be equipped
with tires that are the same brand and have the same construction
and tread pattern so tha t the
drive system is not damaged by .,.