2021 AUDI Q8 wheel size

Wheels

> Audi recommends using Audi
Genuine Tires. If you would like
to use different tires, please
note that the tires may perform
differently even if they are the
same size > A.
>If you would like to equip your
vehicle with a tire and rim com-
bination that is different from
what was installed at the facto-
ry, consult with an authorized
Audi dealer or authorized Audi
Service Facility before making a
purchase > A.
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.
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
circumference as the regular tires.
264


Z\ WARNING
—Do not use steel rims that are
17 inches or larger. Otherwise,
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.
—Only use tires that are more
than six years old when

Wheels

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
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 according to
the running direction indicated on
the tire sidewall > page 291.
Hidden damage
Damage to tires and rims can of-
ten occur in locations that are hid-
den. Unusual vibrations in the ve-
hicle 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.


Z\ WARNING
Tread that has worn too low or
uneven tread depths on the
tires can reduce driving safety.

266

This can increase the risk of an
accident because it has a nega-
tive effect on handling, driving
through curves, and braking,
and because it increases the
risk of hydroplaning when driv-
ing through deep puddles.
AT -m as T


B41L-1383

Fig. 167 Driver's side B-pillar: tire pres-
sure label


B8K-1151 Pee
‘SEATING CAPACITY TOTAL FRONT R NOMBRE DE ‘OTAL /ANT ARRIERE
eed 9 oF pmb , a;
COLD TIRE PRESSURE
PRESSION DES PNEUS A FROID
a KPA, HM PSI
a KPA, Mi PSI
Ga KPA, MM PSI
TIRE SIZE
PNEU _| DIMENSIONS
FRONT
AVANT
REAR
i_|
ARRERE |
‘SPARE a




DE SECOURS


Fig. 168 Tire pressure label
The correct tire pressure for tires
installed at the factory is listed on
a label. The label is located on the
B-pillar > fig. 167, > fig. 168.
Use the tire pressure specified for
a normal vehicle load when the
vehicle is partially loaded > table »

Wheels

Ncw dee em -])
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 any
differences, you should always
follow the tire pressure sticker
=> page 266, fig. 167.
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.












Qs: 275/50 R20 113H 32 | 220 | 35 | 240 | 35 | 240 | 38 | 260
3.0L 285/45 R21 113Y 32 | 220 | 35 | 240 | 35 | 240 | 38 | 260
G-cylinder = (585/45 R21 113H 32 | 220 | 35 | 240 | 35 | 240 | 38 | 260
285/40 R22 110Y 35 | 240 | 38 | 260 | 35 | 240 | 38 | 260
285/40 R22 110H 35 | 240 | 38 | 260 | 39 | 270 | 42 | 290
285/35 R23 107Y 32. | 220 | 32 | 220 | 36 | 250 | 39 | 270
Sas: 285/45 R21 113Y 32 | 220 | 35 | 240 | 35 | 240 | 38 | 260
4.0L 285/40 R22 110Y 35 | 240 | 38 | 260 | 39 | 270 | 42 | 290
B-cylinder 5357/45 R21 113H 32 | 220 | 35 | 240 | 35 | 240 38 | 260
285/40 R22 110H 35 | 240 | 38 | 260 | 39 | 270 | 42 | 290
285/35 R23 107Y 35 | 240 | 35 | 240 | 41 | 280 |] 44 | 300

268

Wheels

an authorized Audi dealer or authorized Audi
Service Facility.
Low-profile tires can wear out faster than stand-
ard tires.

item Me Clin meleCel lire)
— Tread wear
— Traction AAABC
— Temperature ABC
Quality grades can be found where applicable on
the tire side wall between tread shoulder and
maximum section width > page 257, fig. 165.
For example: Tread wear 200, Traction AA, Tem-
perature A.
All passenger car tires must conform to Federal
Safety Requirements in addition 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 tire graded 100.
The relative performance of tires depends upon
the actual conditions of their use, however, and
may
depart significantly from the norm due to
variations in driving 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
oA.
Temperature
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
274
heat when tested under controlled conditions on
a specified 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 > A\.
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 B and A represent higher Levels
of performance on the laboratory test wheel than
the minimum required by law.

Z\ WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning or peak traction charac-
teristics.

ZX WARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.

ZA WARNING
Temperature grades apply to tires that are
properly inflated and not over or underinflat-
ed.

Tire pressure monitoring
system
(1) General notes
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat-
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la-
bel, you should determine the proper tire infla-
tion pressure for those tires).

Wheels

minute and then stays on, there is system mal-
function. Try to store the correct tire pressures
= page 276. Insome cases, you must drive for
several minutes after storing the pressures until
the indicator light turns off. If the indicator light
does turn off or turns on again after a short peri-
od of time, drive to an authorized Audi dealer or
authorized Audi Service Facility immediately to
have the malfunction corrected.

ZA\ WARNING
— If the tire pressure indicator appears in the
display, reduce your speed immediately and
avoid any hard steering or braking maneu-
vers. Stop as soon as possible and check the
tires and their pressure.
— The driver is responsible for maintaining the
correct tire pressure. You must check the
tire pressure regularly.
— Under certain conditions (such as a sporty
driving style, winter conditions, or unpaved
roads), the tire pressure monitoring system
indicator may be delayed.

(i) Tips
— The tire pressure monitoring system can al-
so stop working when there is an ESC mal-
function.
— Using snow chains may result in a system
malfunction.
— The tire pressure monitoring system in your
Audi was calibrated with “Audi Original
Tires” > page 263. Audi recommends using
these tires.
Storing tire pressures
Applies to: vehicles with Tire Pressure Monitoring System in-
dicator
If the tire pressure changes or a tire is replaced,
it must be confirmed in the MMI.
> Before storing the tire pressures, make sure the
tire pressures in all four tires meet the speci-
fied values and are adapted to the load
=> page 266.
> Switch the ignition on.
> Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Tire pressure
276
monitoring > Store tire pressure > Yes, store
now.
@) Tips
Do not store the tire pressures if snow chains
are installed.
Tire pressure monitoring
system
(1) General notes
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat-
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la-
bel, you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system
(TPMS) that illuminates a Low tire pressure tell-
tale when one or more of your tires is significant-
ly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving ona signifi-
cantly under-inflated tire causes the tire to over-
heat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop-
ping ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re-
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the level
to trigger illumination of the TPMS low tire pres-
sure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the sys-
tem is not operating properly. The TPMS mal-
function indicator is combined with the low tire
pressure telltale. When the system detects a
malfunction, the telltale will flash for approxi-
mately one minute and then remain continuously >

4M8012721BF
Index

Software:licensesi. « seins ss asros v0 ania © a 236
Version information.............-.00- 236
License plate bracket................0.. 310
Lifting points (vehicle jack).............. 290
Light/rain sensor
Headlights ............. 0.0 e eee eee ee 51
Intermittent mode (windshield wipers).... 57
Lighting
EXteriO?'s sees oo neem oo een 2 2 eon 2 ee 51
TAGE HOR so scans o 6 siaenve © wn sunctne ew axenene 6 0 « 54
LIQWES sscssia es seem ao waver 2 2 aeesiue @ ¥ arenie © ore 51
Listening to music
referto Media..................- 220, 223
LOAM) scssaree 1 « senor sc « saute st m seviwen mo stenoses 314
Localiusensss + + sean 2 0 ncawaws a o sesvew s avanawe ov ite 32
Locking and unlocking
By remote control..............-.00005 40
Using the lock cylinder; sass s saan a 2 nea 38
With the convenience key............... 40
Low beam headlights.................... 51
Lowering the rear of the vehicle........... 85
LTE
refer to Exterior antenna.............. 184
Luggage compartment.................. 83
Came Flea ensians x « escacn a «cnc we remo 6 ro 87
Cover (manual) ............-----.-5005 84
GOVEr (POWER) « sews « x meus x ¢ eae 5 eS Fe 85
Increasing the size.......... eee eee eee 86
Power SOUrCES ... 1. ee eee eee eee 82
also refer to Luggage compartment...... 83
Luggage compartment lid
Closing buttom:s « «csc eo secwsns = aeauans vo see 43
General information................00. 42
Mechanically unlocking...............-. 45
Openingiand Closings ss mais a & wea s & oe 43
Opening and closing with foot motion..... 44
Power opening and closing.............. 43
Lumbar support.............-.0002-000 63
M
Maintenance ........ 6c eee eee 308
Maintenance intervals.................5 254
Malfunction Indicator Lamp (MIL)........ 241
Maneuverassist sissies <3 cuces 2 3 somes 2 3 savers a 178
Manual shitting: «wees 2s ceos a ¢ eww so een 99
Map
Changing the scale.............0-0005 203
Display’: wasn x 2 warn s ¢ mews se BewE s 2 OS 205
Operating’. « & ssw ¥ sncasan ¥ wawens av memes a x 2 204
Setting the destination................ 203
MAP
refer to Message Access Profile......... 189
Map preview............0..0..0 eee eee 203
Map update............ cece ee eee eee 208
MYAUGLAPD = newer = : saws s 2 eam 2g gee x = 208
ONLINE & arises 2s sewre8e swans ao eRe ow imaUNm 208
USB connection............-..000005- 208
Massage function...............-000000) 63
Front... 2... ec ee 64
Mechanical key..... 0.00.00. 0c eee eee ee 39
Media... .... 0... cece eee eee ee eee 220, 223
DrivVGSiss ¢ = ness ¢ # Beas ¢ 8 HHS + AER at Bee 220
Supported formats.................-- 228
Media-center’. « = sew » ¢ swas x seme 2 x sete 224
Memory functiones: « s sees = ees ve een ce 71
Menu language
refer to Setting the language........... 233
Menu Pathisies « » sows x 2 wees © y eae 2 e emi es 19
Message Access Profile...........-..... 189
MessageS....... 22.00. ce eee eee eee eee 189
Mild hybrid drive system..........-...0- 102
Mirror compass... ... 02.0... e eee eee eee 60
Mirrors
Adjusting exterior mirrors............... 55
DIMMING « = ews & 2 cows xo cen + ees + Bere 56
NAINTEYEIMITNOR®. uss 2 < csename on asete # 9 anes © 57
MMI
refer to Multi Media Interface........... 20
Mobile device
referto Telephone ...........--eeeeee: 181
Mobile device reminder signal............ 185
Mountain passes......... 0. c ee eee aes 108
Mountain roads..............0 0000000 108
Multifunction steering wheel
Buttons ....... 2... eee eee 13,31
Operating’: = « sees = ssw so pee ae deem oe we 13
Programming buttons.................. 31
Voice recognition system............... 28
321