2018 AUDI Q3 tire pressure

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Production options weight
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 we ight, in­
cluding 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 laid at substantially
90 degrees to the centerline of
the tread.
Re commended inflation
pressure
see ¢ page 169, Cold tire infla­
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at h igher in ­
flation pressures than the corre­
sponding standard tire. Rein­
forced tires may be identified as
"XL" "xl" "EXTRA LOAD" or "RF" 1 , ,
on the sidewall.
Wheels
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diamet er
means nominal d iameter 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 designat ion
means rim diameter and width .
Rim width
means nominal 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 rat ings
range from
93 mph (150 km/h)
to
186 mph (298 km/h) ¢ table
on page 167.
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 ...
17 1

Wheels
maximum permissible road
speeds . See also ¢&.
in General
information on page 166 .
Tire 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.
Tread 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
¢ page 175, Treadwear indicator
for more information on measur­
ing tire wear.
Uniform Tire Quality Grading
is a tire information system devel ­
oped by the United S tates Nat ion­
a l Highway Traffic Safety Admin­
istration (NHTSA) that is designed
to help buyers make relative com-
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parisons among tires . The UTQG
is not a safety rat ing and not a
guarantee that a tire will last for
a prescribed number of miles (kilome ters) or perform in a cer­
tain way. It simply gives tire buy­
ers add it iona l information to
combine with other considera ­
tions, such as price, brand loyalty and dealer recommendations. U n­
der UTQG , tires are graded by the
tire manufacturers in three areas:
treadwear, tract ion, and tempera ­
t ure res istance. 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 beg ins with the letters "DO T"
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 fo ur numbers
represent the week and year of
manufacture. Fo r example,
DOT ... 2217 ...
means that the ti re was produced
in the 22nd week of 2017. The
other numbers are ma rketing co­
des that may or may not be used .,..

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not permitted can lead to ve­
hicle damage or accidents.
-If you install wheel covers on the vehicle, make sure they al­low enough air circulation to
cool the brake system. If they
do not, this could increase the risk of an accident.
Tire wear/damage
Fig. 145 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 dea ler
or authorized Audi Service Facili-
l ) Obey any applicable regulations in your
country.
Wheels
ty check the wheel alignment if
there is unusual wear.
-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 d irec­
tion
i:::> fig. 145. The letters "TWI "
or triang les on the tire sidewall
indicate the location of the tread­
wear indicators.
The tires have reached the mini­ mum tread depth
l ) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones
i:::> .&..
Tire rotation
Rotating the tires regularly is rec­
ommended to ensure the tires
wear evenly. To rotate the tires, install the tires from the rear axle ..,.
175

Wheels
on the front axle and vice versa.
This will allow the tires to have approximately the same length of
service life.
For unidirectional tires, make
sure the tires are installed accord­ ing to the running direction indi­
cated on the tire sidewall
¢ page 196.
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
s ide, drive slowly and carefully to
the nearest authorized Aud i deal­
er or authorized Audi Service Fa­
cility to have the vehicle inspect ­
ed.
A WARNING
Tread that has worn too low or
different tread depths on the
t ires can reduce driving safety.
This can increase the risk of an
accident because it has a nega­
t ive effect on handling, driving
through curves, and braking, and because it increases the
176
risk of hydroplaning when driv­
ing through deep puddles.
Tire pressure
Fig. 146 Driver's side 8-pillar : tire pres­
sure label
"'" '" AVANT
---
- KPA. a PSI
- KPA.
a PSI
- KPA.
a PSI
Fig. 147 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. 146, ¢ fig. 147.
Use the tire pressure specified for
a normal vehicle load when the
vehicle is partially loaded¢
table
on page 178 .
If driving the vehi-
cle when fully loaded, you must
increase the tire pressure to the
maximum specified pressure¢.&. . .,.

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Checking/correcting ti re pressure
.,,.Check the tire pressure at least
once per month and also check it
before every long drive.
.,,.A lways check the tire pressure
when the tires are
cold . Do not
reduce the pressure if it increas­
es when the tires are warm .
.,,.Chec k the label ¢
fig. 147 for
the correct tire pressure based
on vehicle load .
.,,.Correct the tire pressure if nec­
essary .
.,,.Ve hicles with Tire Pressure Mon­
itoring System*: store the modi­
fied tire pressure in the Infotain­ ment system ¢
page 184.
.,,.Check the pressure in the emer­
gency tire*/spare tire*. Always
maintain the maximum temper­
ature that is specified for the
tire.
.&_ WARNING
Always adapt the tire pressure
to your driving style and vehicle load.
Tire pressure table
Please note that the information
contained in the following table
was correct at the time of print-
Wheels
-Overload ing can lead to loss of
vehicle control and increase the risk of an accident. Read
and follow the important safe­
ty precautions in ¢
page 178,
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
braking behavior, which in­
creases the risk of an accident.
(D Note
Replace lost valve caps to re­
duce the risk of damage to the
tire valves.
@) For the sake of the environment
Tire pressure that is too low in­
creases fuel consumption.
ing, and the information is sub­
ject to change. If there are differ­
ences between this information .,.
177

Wheels
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 176, fig. 146.
Make sure that the tire designa­
tion on your tire matches the des-
Model/ Tire designation
Engine
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
Normal load Maximum load
(up to 3 people)a)
front rear front rear
PSI
Q3: 235/50 Rl8 97H 32
2.0L
235/50 Rl8 97V 32
4 cylinders 255/40 Rl9 l00Y 33
255/35 R20 97Y 33
255/40 Rl9 l00H 33
a) 2 peop le in the front ; 1 perso n in the rear
.8, WARNING
Please note the important safe­
ty precautions regarding tire
pressure ¢
page 176 and load
limits ¢
page 178.
Tires and vehicle load limits
There are limits to the amount of
load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop.
Overloading can not only lead to
loss of vehicle control, but can al­
so damage important parts of the
vehicle and can lead to sudden
178
kPA PSI kPA PSI kPA PSI kPA
220 32 220 33 230 36 250
220 3 2 22 0
33 230
36 250
230 33 230 44
300 46 320
230 33 230 44 300 4
6 320
230 33 230 44 300 46 320
tire failure, including a blowout
and sudden deflation that can
cause the vehicle to crash.
Your safety and that of your pas­
sengers also depends on making
sure that load limits are not ex­
ceeded. Vehicle load includes ev­
erybody and everything in and on
the vehicle. These load limits are
technically referred to as the vehi­
cle's
Gross Vehicle Weight Rat­
ing
("GVWR").
The "GVWR" includes the weight
of the basic vehicle, all factory in­
stalled accessories, a full tank of
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Wheels
with them. Remove the wheel covers" first.
Use coated snow chains.
Low-profile tires
App lies to: veh icles with low-profile tires
Your vehicle is equipped with low-profile tires* at
t he factory . Compared to other tire/rim combina­
ti ons, low-profile tires offer a wider tread sur face
and a larger rim diameter with shorter tire side­
walls . This results in an agile driving style . How­
ever, it may reduce the level of comfort and in­
crease road noise when dr iv ing on roads in poor
condition .
Low-profile tires can become damaged more
qu ickly than standard t ires when driving over
large b umps, potholes, manhole covers, speed
bumps and curbs. Therefore, it is part icu lar ly im­
portant to maintain the cor rect tire pressure
¢page 176.
To reduce the r isk of damage to the tires and
rims, drive very carefully on poor roads.
Check your wheels regularly every 2,000 mi (3 ,000 km) for damage. For example , check for
bu lges/cracks on the tir es or deformations/
cracks on the r ims.
After a heavy impact or damage, have the tires
and rims inspected or replaced immediate ly by
an author ized Audi dealer or author ized A udi
Serv ice Facility .
Low-profile tires can wear out faster than stand­
ard tires.
Summer tires are not suitable for cold weather,
snow or black ice . If you are driving in these con ­
d itions, use winter or all season t ires
¢ page 181.
Uniform tire quality grading
-Tread wear
- T raction AA A B C
- Temperature ABC
Qua lity grades can be found where applicab le on
the tire side wall between tre ad shoulder and
maximum section width
¢ page 16 7, fig . 144 .
182
For example: Tread wear 200 , Traction AA, Tem­
perature
A .
All passenger car tir es must conform to Federal
Safety Requirements in addit ion to these grades .
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov­
ernment test course.
For example, a tire graded 150 would wear one
and one half (1 1/2) times as well on the govern­
ment course as a tir e graded 100 .
T he relative performance of tires depends upon
the actual cond itions of their use, however, and
may depart sign ificantly from the norm due to
variations in driv ing habits, service practices and
differences in road characteristics and climate.
Traction
The traction grades , from highest to lowest, are
AA , A, Band
C. Those grades represent the tire's
ability to stop on wet pavement as measured un­
der controlled conditions on specified govern ­
ment test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance
¢_& .
Temperature
The temperature grades are A (the highest), B,
and C , representing the tire's resistance to the
generat ion of heat and its ability to dissipate
heat when tested under controlled conditions on
a spec ified indoor laboratory test wheel.
Sustained high temperature can cause the mate­
rial of the tire to degenerate and reduce tire life ,
and excessive temperature can lead to sudden
tire failure ¢.& .
The grade C corresponds to a level of perform­
ance which all passenger car tires must meet un­
der the Federal Motor Vehicle Safety Standard
No. 109. Grades Band A represent higher levels
of performance on the laboratory test wheel than
the minimum required by law .
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A WARNING 1 = -
The traction grade ass igned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor­ nering, hydroplaning or peak tract ion charac­
teristics.
A WARNING
The temperature grade for this t ire is estab­
lished for a t ire that is properly inflated and
no t overloaded. Excess ive speed, underinfla­
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
A WARNING
Temperature grades apply to tires that are properly inflated and not over or underinflat­
ed.
Tire pressure monitoring system
(!) General notes
Applies to: veh icles with tire pressure monitoring system
-
Each tire, including the spare (if provided),
should be checked monthly when co ld and inflat­
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placa rd or
tire i nflat ion pressure label. (If your vehicle has
tires of a different s ize tha n the s ize indicated on
the veh icle placard or tire inflation pressure la­
be l, yo u sh ou ld de termine the prope r tire infla­
tion pressure for those tires).
As an added safety feature, your veh icle has been
eq uipped w ith a tire pressu re monito ring sys tem
(TPMS) that ill uminates a low tire p ress ure te ll­
tale when one or more of your tires is significan t­
l y under-inflated. Accordingly, when the low tire
p ressure tellta le illuminates, you should stop and
check yo ur tires as soon as possible, and inflate
them to the proper pressure. Driving on a s ignifi­
cantly under-i nflated tire causes the tire to over­
h eat and can lead to t ire failure . Unde r-inflation
a lso reduces fuel efficiency and t ire t read life,
Wh eel s
and may affect the vehicle 's handling an d stop ­
ping ability.
Please note tha t the TPM S is not a s ubstitute fo r
prope r ti re maintenance, a nd it is the dr iver's re­
spons ibility to maintain co rrect t ire pressure,
even if under-inflatio n has not reached the level
to t rigge r ill umination of the TPMS low t ire pres­
s ur e te lltale .
Yo ur vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the sys­
tem is not ope rating properly. The TP MS ma l­
funct ion indicator is combined with the low t ire
pressure telltale. When the system detects a
malfu nction, the telltale w ill flash for app roxi­
mately one m inute and t hen rema in continuously
illuminated . Thi s seque nce w ill cont inue upon
s u bsequent vehicle star t-ups as long as the mal­
funct ion exists.
When the malfunction indicator is illum inated,
the system may not be able to detect o r signal
l ow tire p ressure as intended. TPMS malfunct ions
may occur fo r a v arie ty of reaso ns, including the
insta llation o f replacement or al ternate tires or
whee ls on the vehicle that p revent the TPMS
from functioning proper ly . Always check the
TPMS ma lf u nction te lltale after replac ing one or
more tires or wheels on yo ur vehicle to ensure
that the rep lacement or a lt ernate tires and
wheels allow the TPMS to continue to function prope rly.
' If the Tire Pressure Monitoring System
indicator appears
Applies to: vehicles wi th Tire Pressur e Mon ito ring System in·
dicator
The tire pressure indicator in the ins trument
cluster informs you if the tire pressure is too low
or if there is a system malfunction .
Using the ABS sensors, the tire pressure monitor­
ing system compares the tire tread c ircumfer­
ence and v ibration characterist ics of the ind ividu ­
al tires. If the pressure changes in one o r more
whee ls, this is indicated in the inst rument cl uste r
display with t he
[IJ indica to r light and a mes­
sage . If only one tire is affec ted, the locat ion of
that tire w ill be indicated. .,,.
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