2021 AUDI Q8 wheel alignment

4M8012721BF
Wheels


absolutely necessary and drive
carefully when doing so.
—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 and damage
rr)
+
x xz + a

Fig. 166 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.

D Obey any applicable regulations in the
country where the vehicle is being oper-
ated.
—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.
—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 inch (1.6 mm) high and are
spaced evenly around the tire per-
pendicular to the running direc-
tion > fig. 166. The letters “TWI”
or triangles on the tire sidewall
indicate the location of the tread-
wear indicators.
The tires have reached the mini-
mum tread depth !) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones > A.
265

4M8012721BF
Emergency assistance

Removing and installing a wheel
@ Rg Tt
“ 0 oO

B8K-1477


Removing a wheel
> Remove the top wheel bolt completely using
the hex socket in the screwdriver handle from
the vehicle tool kit > fig. 178 and place it ona
clean surface.
> Then install the alignment pin from the vehicle
tool kit by hand in the empty wheel bolt hole
> fig. 179”.
> Remove the rest of the wheel bolts.
> Remove the wheel >(). The alignment pin re-
mains in the hole while doing this.
Installing a wheel
Read the directions on > page 291 when instal-
ling unidirectional tires.
> Slide the wheel on over the alignment pin >@.
> Install the wheel bolts and tighten them gently
using the hex socket.
> Remove the alignment pin and tighten the re-
maining wheel bolt.

D Applies to: vehicles with ceramic brake rotors*: Use a sec-
ond alignment pin* from the vehicle tool kit for the lowest
hole according to the steps described for the first align-
ment pin.
> Carefully lower the vehicle using the vehicle
jack*.
> Tighten the wheel bolts in a diagonal pattern
using the wheel wrench*.
The wheel bolts must be clean and loosen and
tighten easily. Check the contact surfaces for the
wheel and hub. Contaminants on these surfaces
must be removed before installing the wheel.

ZX WARNING
— Read and follow the important information
and notes under > page 263.
— Never use the hex socket in the screwdriver
handle to tighten the wheel bolts. Using the
hex
socket will not achieve the required
tightening torque, which increases the risk
of an accident.
() Note
When removing or installing the wheel, the
rim could hit the brake rotor and damage the
rotor. Work carefully and have a second per-
son help you.
Unidirectional tires
A unidirectional tire profile is identified by arrows
on the tire sidewall that point in the running di-
rection. You must always maintain the specified
running direction. This is necessary to ensure the
tire's optimal performance in regard to adhesion,
running noise, and friction, and to reduce the risk
of
hydroplaning.

To benefit fully from the advantages of the uni-
directional tire design, you should replace faulty
tires as soon as possible and restore the correct
running direction on all of the tires.
> Reinstall the caps on the wheel bolts if necessa-
ry.
291

4M8012721BF

A
A/C cooling mode..........-. eee eee eee ee
A/C system refrigerant oil...............
Acceleration measurement..............
Accelerator pedal...............--00 000s
also refer to Accelerator pedal...........
AccessorieS.... 0... 0.00. eee eee
Active lane assist
refer to Lane departure warning.........
refer to Lane guidance................
Adaptive cruise assist................04.
Cleaning the sensors......... 0.0.0.0 005
Adaptive cruise control
Predictive control..............000005
Adaptive dampers « sve « « savece ae scare 6 0 oe
Adaptive speed assist
refer to Adaptive cruise assist..........
Adjusting the air distribution.............
Adjusting the brightness.................
Adjusting the sound................0005
Adjusting the temperature...............
Adjusting the vents ccs <= csws + © sews +o oer
Adjusting the volume............. eee eee
Adjusting the volume (announcements) ... .
Adjusting the welcome sound............
Airbag system... 2.2... eee eee
AIPSUSPONSION ix o © aowees « 2 mines + omnes 5, v0
Alarm system
refer to Anti-theft alarm system..........
Alignment pin (changing the wheel).......
All-weather lights...............-..00005
All-wheel steering.............---00005
ALUS@aSOntineSies. « 3 ssasess «x aimee a & iwesane sw a8
All wheel drive
refer to quattro.............0 0. eee
Amazon Alexa integration
Media playback................00000.
Operating « « seen s » ewes se eee G s FeeE Ys BOS
AMI
refer to Audi music interface...........
Android Auto
refer to Audi smartphone interface......
Anti-lock braking system................
Anti-Slip Regulation 0.642 5 eccs «sense ees
Anti-theft alarm system...............05.
Anti-theft wheel bolts...............0... 289
Apple CarPlay
refer to Audi smartphone interface...... 231
Aspect ratio
VIdCO eee eee eee eee eee 225,.227
ASR
refer to Anti-Slip Regulation............ 116
Audi adaptive light...............-.0000- 51
Audi connect
refer to CONnNect ; «= = sass ss sees ss eee ee ae 192
Audidrive'selecticy, « + scum oz scum « x pewe yoo 111
Audi music interface...............2.-- 222
Audio files............. 0000 c cece eee eee 223
Audi phone box...........0.- 00 eee eee 183
Audi presense....... 00... cee eee eee 149
Messages ........... 0.0. e eee eee eee 153
Audi pre sense front.............-...0-- 150
Audi side assist
refer to Side assist. ........ 0... cece eee 153
Audi smartphone interface.............. 231
Legalinformation.................005 236
Audi virtual cockpit
refer to Instrument cluster.............. 12
AUTO
Automatic headlights................4. 51
Climate control system.............0005 91
Auto Lock (central locking) ............... 35
Automatic climate control system
refer to Climate control system.......... 90
Automatic luggage compartment lid.... 43,44
Automatic transmission............-.0005 97
Parking lock emergency release......... 100
Automatic wipe/wash system............. 57
Average consumption................... 16
Average speed..........-. 00. cece eee ee 16
B
Bag hooks ........ 0.0. e eee eee eee eee 83
Band
refer to Frequency band............... 212
Battery
Charging (12 Volt vehicle battery)....... 253
Vehicle battery (12 Volt)............... 2511,
Winter operation (12 Volt vehicle battery) . 252
Blinds
refer to Panoramic glass roof............ 47
315