wheel AUDI TT COUPE 2016 Workshop Manual

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be happy to provide more infor­
mation.
® Mud and snow capability
"M/S" or "M+S" indicates the tire
has characteristics that make it
suitable for driving on mud and
snow. & indicates a winter t ire.
@ Compos ition 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, t raction and temper­
ature ranges c:> page 266.
252
@ Running direction
~ Maximum permitted
inflation pressure
This number indicates the maxi­
mum pressure to which a tire can
be inflated under normal operat­
ing conditions.
Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
wh ich 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
items are available as factory-in­
stalled equipment (whether in­
stalled or no t).
Aspect ratio
means the ratio of the height to
the width of the tire in percent.
Numbers of SS o r lower indicate a
low
sidewall for improved steer­
ing response and better overa ll
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or ...

Downloaded from www.Manualslib.com manuals search engine 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 vehicle 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
hic le
with standard equipment in­
c l
uding the maximum capacity of
fuel, oil, and coolant, air condi­
tioning and additional weight of
optional equipment.
Extra load ti re
means a tire designed to operate
at higher loads and at higher in­
flation pressures than the corre­
sponding standard tire. Extra load
tires may be identified as "XL ",
Wheels
"xl" "EXTRA LOAD" or "RF" on , ,
the sidewall.
Gross Axle 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 maximum total loaded
weight of the vehic le.
Groove
means the space between two ad­
jacent tread ribs.
Load rating (code)
means the maxim um load that a
tire is rated to carry for a g iven in­
flation pressure. You may not find
this information on all tires be­
ca use it is not required by law.
Maximum load rating
means the load rating for a tire at
the maximum permissible infla­
tion pressure for that tire.
Ma ximum loaded vehicle
weight
means the sum of:
(a)
Curb weight
(b) Accessory weight
253

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(c) Vehicle capacity weight, and
(d) Production options weig ht
Maximum (permissible)
inflation pressure
means the maximum cold infla­
tion pressure to which a tire may
be inflated. Also called "maxi­
mum inflation pressure."
Normal occupant weight
means 150 lbs (68 kg) times the
number of occupants seated in
the vehicle up to the total seating
capacity of your vehicle .
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 .
Ply
means a layer of rubber-coated
parallel cords.
254
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
special trim.
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the
beads are la id at substantially 90
degrees to the centerline of the
tread.
Recommended inflation
pressure
see¢ page 253, Cold tire infla­
tion pressure.
Reinforced tire
means a tire designed to operate
at higher loads and at higher in­
flation pressures than the corre­
sponding standard tire. Rein ­
forced tires may be identified as
"XL", "xl", "EXTRA LOAD", or "RF"
on the sidewall. ...

Downloaded from www.Manualslib.com manuals search engine 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) 9 table
on page 251. You may not find
this information on all tires be­
cause it is not required by law.
The
speed rating letter code,
where applicable, i s molded on
the tire sidewall and indicates the
Wheels
maximum permissible road
speeds 9 .&. in Winter tires on
page 265.
T ire pressure monitoring
system *
means a system that detects
when one or more of a vehicle's
tires are underinflated and illumi­
nates a low tire pressure warning
telltale.
Tread
means that portion of a tire that
comes into contact with the road.
Tr ead separation
means pulling away of the tread
from the tire carcass.
Treadwear indicators (TWI)
means the projections within the
principal grooves designed to give
a visual indication
of the degrees
of wear of the tread. See
9 page 259, Treadwear indicator
for more information on measur­
ing tire wear.
Uniform Tire Quality Grading
is a tire information system devel­
oped by the United States Nation ­
a l Highway Traffic
Safety Admin­
istration (NHTSA) that is designed
to help buyers make relative
255
..

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comparisons 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 a
certain way. It simply gives tire
buyers 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 three areas:
treadwear, traction, and tempera­
ture resistance. The UTQG in for­
mation on the tires, molded into
the sidewalls.
U.S. DOT Tire Identification
Number (TIN)
T his is the t ire's "serial number".
It begins w ith the letters "DOT"
and indicates that the tire meets
all federal standards. The nex t
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,
DOT ... 2214 ...
means that the tire was produced
in the 22nd week of 2014. The
other numbers are marketing co­
des that may or may not be used
2 5 6
by the tire manufacturer. T his 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 kg)
times the veh icle's designated
seating capacity.
Vehicle maximum load on the
tire
means that load on an individual
tire that is determined by distrib­
uting to each axle its share of the
maximum loaded vehic le weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individual
tire that is determined by distrib­
uting to each axle its share of the
curb weight, accessory weight,
and normal occupant weight (dis­
tributed in accordance with¢ ta­
ble on page 262) and dividing by
two. ~

Downloaded from www.Manualslib.com manuals search engine Occupant loading and distri­
bution for vehicle normal load
for various designated seating
capac ities
Refer to the tire inflation pres­
sure label for the number of seat­
ing positions. Refer to the table
¢table on page 262 for the
number of people that corre­
spond to the vehicle 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.
... use tires of the same construc­
tion, size (rolling circumference)
and as close to the same tread
pattern as possible on all four
wheels.
... Do not replace tires individually .
At
least replace both tires on the
same axle at the same time.
Wheel s
... Audi recommends that you use
Audi Original equipment tires. If
you would like to use different
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
tion that is different from what
was installed at the factory, con­
sult with an authorized Audi
dealer or authorized Audi Service
Facility
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 that the
drive system is not damaged by
different tire speeds. For this rea­
son, in case of emergency, only
use a spare tire* that is the same ..
257

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circumference as the regular
tires.
II WARNING -I
-Only use tire/rim combina­
tions and suitable wheel bolts
that have been approved by
Audi. Otherwise,
damage to
the vehicle and an accident
could result.
-For technical reasons, it is not
possible to use tires from oth­
er vehicles -in some cases,
you cannot even use tires from
the same vehicle model.
-Make sure that the tires you
select have enough clearance
to the vehicle. Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif­
ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged
and this can reduce driving
safety and increase the risk of
an accident.
-Only use tires that are more
than 6 years old when abso­
lutely necessary and drive
carefully
when doing so.
258
-Do not use run-flat tires on
your vehicle. Using them when
not permitted can lead to ve­
hicle
damage or accidents.
-If you install wheel covers on
the vehicle, make sure they al­
low
enough air circulation to
cool the brake system. If they
do not, this could increase the
risk of an accident.
Tire wear/damage
Fig. 193 Tire profile : treadwear indica­
tor
Tire wear
Check the tires regularly for wear.
-Inflation pressure that is too low
or high can increase tire wear
considerably.
-Driving quickly
through curves,
rapid
acceleration and heavy
braking
increase tire wear.
-Have an authorized Audi dealer
or authorized Audi Service Facili­
ty check the wheel alignment if
there is unusual wear.

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ii ~
-Have the wheels rebalanced if an
imbalance is causing noticeable
vibration in the steering wheel.
If you do not, the tires and other
vehicle components could wear
more quickly.
Treadwear indicator
Original equipment tires contain
treadwear indicators in the tread
pattern, which are bars that are
1/16 in (1.6 mm) high and are
spaced evenly around the tire per­
pendicular to the running direc­
tion¢ fig. 193. The letters "TWI"
or triangles on the tire sidewall
indicate the location of the tread­
wea r indicators.
The tires have reached the mini ­
mum tread depth l) when they
have worn down to the tread wear
indicators. Replace the tires with
new ones ¢ .&.
Wheel rotation
Rotating the wheels regularly is
recommended to ensure the tires
wear evenly. To rotate wheels, in­
stall the wheels from the rear
axle on the front ax le and vice
versa. This will allow the tires to
~ l) Obey any applicable regulations in your
:0 country . .....
Wheels
have approximately the same
length of service life.
F
or unidirectional tires, make
sure the tires are installed accord­
ing to the running direction indi­
cated on the tire sidewall
¢ page 282.
Hidden damage
Damage to tires and rims can of­
ten occur in locations that are
hidden. Unusual vibrations in the
vehicle or pulling to one side may
indicate that there is tire damage.
Reduce your speed immediately.
Check
the tires for damage. If no
damage is visible from the out­
side, drive slowly and carefully to
the nearest authorized Audi deal­
er or authorized Audi Service Fa­
cility
to have the vehicle inspect­
ed.
.&. WARNING
Tread that has worn too low or
different tread depths on the
tires can reduce driving safety.
This can especially have a nega­
tive effect on handling, on the
risk aquaplaning when driving
through water, when driving ..
259

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through curves and when brak­
ing, which increases
the risk of
an accident.
Tire pressure
Fig. 194 Driver's side B-pillar : tire pres­
sure
Label
-"' ~
-
r~.--c=--~-"'-'CU-~-,:t-.-=--.-=---•-)_@_':~ l ~
n.~--.ol~.i.i-eo ....... _~ ... ~_ ... l.ePO .... M ........ «du~ ... -.... ~ le• IJ,
,_,
AVANT -KPA. . PSI
.::.. -KPA. • PSI J
l~~==:...::::::========-==KPA.==·=PSl==~~~~
Fig. 195 Tire pressure label
The correct tire pressure for tires
mounted
in the factory and for
the spare tire* is indicated on a La­
bel. The
Label is Located on the B­
pillar ¢fig. 194, ¢fig. 195.
Use the tire pressure specified for
a normal vehicle load when
the
vehicle is partially loaded ¢ table
on
page 262. If driving the vehi­
cle when fully loaded, you
must
260
increase the tire pressure to the
maximum specified pressure¢.&..
Checking/correcting tire
pressure
•Check the tire pressure at least
once per month and also check it
before every long drive.
•Always check the tire pressure
when
the tires are cold. Do not
reduce the pressure if it increas­
es when the tires are warm.
•Check the Label¢ fig. 195 for
the correct tire pressure based
on vehicle
Load.
•Correct the tire pressure if nec­
essary .
•Vehicles with Tire Pressure Mon­
itoring System*: store the modi­
fied tire pressure
in the Infotain­
ment system¢ page 269.
•Check the pressure in the emer­
gency tire*/spare tire*. Always
maintain
the maximum temper­
ature that is specified for the
tire.
A WARNING
r-=
Always adapt the tire pressure
to your driving style and vehicle
load.
-Overloading can lead
to loss of
vehicle control and increase .,.

Downloaded from www.Manualslib.com manuals search engine the risk of an accident. Read
and follow
the important safe­
ty precautions
inc:::> page 262,
Tires and vehicle Load Limits.
-The tire must flex more if the
tire pressure is too Low or if
the vehicle speed or Load are
too high. This heats the tire up
too much . This increases
the
risk of an accident because it
can cause the tire to burst and
result
in Loss of vehicle con­
trol.
- Incorrect tire pressure
in­
creases tire wear and has a
negative effect on driving and
Tire pressure table
Please note that the information
contained
in the following table
was correct at the time of print­
ing , and
the information is sub­
ject to change. If there are differ­
ences between this information
and
the tire pressures specified
on
the Label on the driver's side B­
pillar, always follow the specifica­
tion on
the B-pillar Label
~page 260, fig. 194.
Wheels
braking behavior, which in­
creases the risk of an accident.
CD Note
Replace Lost valve caps to re­
duce
the risk of damage to the
tire valves.
Tire pressure
that is too Low in­
creases fuel consumption.
(0 Tips
Audi recommends using the
tire pressure specified for a
normal
Load c:::> table on
page
262 or for a full Load
when the vehicle is partially
loaded.
Make sure
that the tire designa­
tion on your tire matches
the des­
ignation on
the tire pressure Label
and the tire pressure table.
The following
table Lists recom ­
mended tire pressures
in cold
tires according
to the Load and
the size of the tires installed . ...
261