2018 AUDI A6 tire size

Intelligent Technology
driving too close to objects ahead . The ESC
and its integrated systems cannot always prevent coll isions
-there is still a risk of ac­
cidents!
- Press the accelerator pedal carefully when
accelerating on even, slippery surfaces such as ice and snow . The drive wheels can spin
even when these control systems are instal-
Switching on /off
led and this can affect driving stability and
increase the risk of a collision.
(D Tips
-ABS and ASR only function correctly when
all four wheels are equipped with identical
tires. Different tire sizes can lead to a reduc­
tion in engine power.
- You may hear noises when the systems de­
scribed are working.
ESC turns on automatically when you start the engine .
Fig. 137 Ce nter con sole: OF F~ button
ESC levels
Sport mode on
The following examples are unusual situations
where it may make sense to switch sport mode
on in order to allow the wheels to spin:
- Rock ing the vehicle to free it when it is stuck
- Dr iving in deep snow or on loose ground
- Driving with snow chains
Sport mode off
Behavior
The ESC and ASR stabilization f unctions Th
e fu ll stabilization f unction of the ESC
are limited
~ &. . and ASR is avai lab le again.
Operating Press the I~ O FF I button . Press the I~ OF F! button again .
Indicator filturns on. . turns off.
lights
Messages Stabilization control (ESC): Sport Warn-Stabilization control (ESC): On
ing! Reduced stability
A WARNING
-Only switch sport mode on when your driv­
ing abilities and the traffic situation permit,
because there is a risk of sliding .
- The stabilization function is limited when
sport mode is switched on. The driving
wheels could spin and the vehicle could
swerve, espec ially on slick or slippery road
surfaces .
120
-
{l) Tips
Sport mode cannot be switched on if the
cruise control system* or adaptive cruise con­
tro l* is switched on .
Brakes
New brake pads
New brake pads do not achieve their full braki ng
effec t during the first 2SO mi (400 km). They
must be "broken in" first.

Safety belts
Safety belts
General information
Always wear safety belts!
Wearing safety belts correctly saves lives!
This chapter explains why safety be lts are neces­
sary, how they work and how to adjust and wear
them correctly.
.,. Read all the information that follows and heed
all of the instructions and WARNINGS.
A WARNING
Not wearing safety belts or wearing them im­
properly increases the risk of serious personal
injury and death.
- Safety belts are the single most effective
means available to reduce the risk of serious
injury and death in automob ile acc idents.
For your protection and that of your passen­
gers, always correctly wear safety belts
when the vehicle is moving.
- Pregnant women, injured, or physically im­
paired persons must also use safety belts.
Like all vehicle occupants, they are more
likely to be serious ly injured if th ey do not
wear safety belts. The best way to protect a
fetus is to protect the mother
-throughout
the entire pregnancy.
Number of seats
Your Audi has a total of five seating positions:
two in the front and three in the rear. Each seat­
ing position has a safety belt.
A WARNING
Not wearing safety belts or wearing them im­
properly increases the risk of serious personal
inju ry and death.
- Never strap more tha n one person, includ­
i ng small children, into any belt. It is espe­
cially dangerous to place a safety belt over a
child sitting on you r lap.
- Never let more people ride in the vehicle
than there are safety belts available.
134 -
Be sure everyone riding in the vehicle is
proper ly restrained with a separate safety
belt or child restraint.
~ Safety belt warning light
Your vehicle has a warning system for the driver
and front seat passenger (on USA models only) to remind you about the importance of buckling­
up .
Fig. 140 Safety belt warn ing lig ht in the instrument clus ­
ter
-enlarged
Before driving off , always:
.,. Fasten your safety belt and make sure you are
wearing it properly .
U) N
"' 9 N .,. Make sure that your passengers a lso buckle up
and properly wear their safety belts .
.,. Protect children with a ch ild restraint system
appropr iate for the size and age .
The warning light . in the instrument cluster
lights up when the ign it ion is on as a reminder to
fasten the safety belts . In addition , you will hear
a war ning tone for a certain period of time.
Fasten your safety belt and make sure that your
passengers also properly put on their safety
belts.
A WARNING
-
- Safety belts are the single most effective
means available to reduce the risk of serious
inj ury and death in automobile accidents.
Fo r your protection and that of your passen­
gers, a lways correct ly wear safety belts
when t he vehicle is moving .
- Fai lure to pay attention to the warning light
that come on, cou ld lead to personal injury.

Wheels
Tire designations
Fig. 185 Tire designations on the side­
wall
(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.
202
@ 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. Also
see
¢ A in General information
on page 201.
"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 m ph (1 60 km/h)
R up to 106 mph (170 km /h)
5 up to 11 0 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 a bov e 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 ) For tires above 149 mph (240 km/h),
tire manufacturers sometimes use the
code "ZR" .

Wheel s
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
items are available as factory-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 sidewall for improved steer­
ing response and better overall
handling on dry pavement .
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.
20 4
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the t ire 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
hicle w ith standard equipment in­
cluding the maximum capacity of
fuel, oil, and coolant, ai r condi­
tioning and additional weight of
optional equipment.
E x tra 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 "X L",
"
l" "EXTRA LOAD" or "RF" on X I I
the sidewall. .,.

Wheels
Production options we igh t
means the combined weight of
those installed regular production
options weighing over 5 lbs.
(2.3 kg) in excess of those stand­
ard items which they replace, not previously considered in curb
weight or accessory weight, in­
cluding heavy duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim.
Radial pl y tir e
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.
R ecomm ended in flation
pressure
see ¢ page 204 , Cold tire infla­
tion pressure.
R einforced 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.
206
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diam eter
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 nomina l distance between
r im
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) ¢ table
on page 202 .
You may not find
this information on all tires be­
cause it is not required by law .
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the
...

Wheels
by the tire 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 kilo ­
grams) times the vehicle's desig­ nated 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 ­
tr ibuted in accordance
with¢ ta­
ble on page
2 13) and d ividing by
two .
Occupant loading and distri­
bution for vehicle normal load
for various designated seating capacities
Re fer to the tire inflation pres­
sure
label¢ page 211, fig. 188
2 08
for the n umbe r of seating posi­
tions. Refer to the
table ¢ table
on page
213 for the number of
people tha t correspond to the ve­
hicle normal load.
New tires or wheels
Audi recommends having all work
on t ires or wheels performed by
an authorized Audi dealer or au­
thorized Audi Service Facility.
These facilities have the proper
know ledge and are eq uipped with
the required too ls and rep lace­
ment parts.
... New t ires do not yet have the
optim um gripping properties.
Drive carefully and at moderate
speeds for the first 35 0 m iles
(500 km) with new tires .
... Only use tires with the same de­
sign, size ( rolling circumfer ­
ence) , and as close to t he same
tread pattern as possible on a ll
four wheels .
...
Do not replace tires individually.
At least replace bo th tires on the
same axle at the same time .
... Audi recommends that you use
Audi O riginal Tires. If you would
like to use di fferent tires, please
note that the tires may perform
...

0 0)
-N ,.... N
-0
s ..
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¢ ,&..
Because the spare tire* is differ­
ent from the regular tires instal­
led on the vehicle (such as winter
tires or wide tires), only use the spare tire* temporarily in case of
emergency and drive carefully
while it is in use. It should be re­
placed with a regular tire as soon
as possible.
Applies to: vehicles with all wheel drive : 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 dam­ aged by different wheel speeds.
For this reason, in case of emer­
gency, only use a spare tire* that
is the same circumference as the
regular tires .
Wheels
A WARNING
-Do not use steel rims that are
17 inches or larger. Other­
wise, damage to the vehicle and an accident could result.
-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.
...
209

a co .... N
" N .... 0 0 \,;J ' 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 211, fig. 187.
Model/ Tire designation
Wheels
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.
Tire pressure
Engine Normal load Maximum load
(up to 3
people)3>
front
PSI kPA
A6:
225/55 Rl 7 97H 3 2 220
2.0L
245/45 Rl8 l00H 33 230
4 cylinders 255/40 Rl9 l00H 33 230
255/40 Rl9 l00Y 32 220
255/35 R20 97Y 35 2
40
A6: 225/55 Rl7 97H 35 240
3.0L
245/45 Rl8 l00H 35 240
6
cylinders 255/40 Rl9 l00H 35 240
255/40 Rl9 l00Y 36 250
255/35 R20 97Y 39 270
56: 255/40 Rl9 l00Y 39 270
4.0L
255/35 R20 97Y 44 300
8 cylinders
a) 2 people in the front, 1 person in the rear
A WARNING
Please note the important safe­
ty precautions regarding tire
rear front rear
PSI kPA PSI kPA PSI kPA
29 200 35 240
38 260
32 220 35 240 38 260
32 220 35 240
38 260
32 220 33 230 36 250
3 2 220
38 2
60 4 1 280
32 220 38 260 41 280
32 220 38 260 41 280
32 220 38 260 41 280
33 230
39 270 42 290
36 250 44 300 46 320
35 240 42 290 44 300
39 270 46 320 48 330
pressure ¢page 211 and load
limits
¢ page 214.
213