2019 AUDI TT ROADSTER wheel alignment

8S8012721BA
Wheels

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.
—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. 182. The letters “TWI”
or triangles on the tire sidewall
indicate the location of the tread-
wear indicators.

D Obey any applicable regulations in the
country where the vehicle is being oper-
ated.
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.
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 273.
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 >
249

8S58012721BA
Emergency assistance

Removing and mounting a wheel
@ Rg Tt
“ 0 oO

B8K-1477



Fig. 196 Wheel: alignment pin in the top hole
Removing a wheel
> Remove the top wheel bolt completely using
the hex socket in the screwdriver handle from
the vehicle tool kit > fig. 195 and place it ona
clean surface.
> Then install the alignment pin from the vehicle
tool kit in the empty wheel bolt hole by hand
> fig. 196.
> 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 273 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.
> 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.

ZA\ WARNING
— Read and follow the important information
and notes under > page 247.
— 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 optimum performance in regard to adhe-
sion, 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.
> Store the vehicle tool kit in its designated
place.
> If the removed wheel does not fit in the spare
wheel well, store it securely in the luggage
compartment > page 50.
> Check the tire pressure on the installed wheel
as soon as possible.
> Check the tire pressure and store it in the Info-
tainment system. >
273

8S58012721BA
Index

A
A/C (climate control system) .............. 53
ACCESSOFIES . 6... ee eee 48, 282
Active lane assist... . owes. ss sesmen «oes ee ave 72
Activating vibration warning............. 74
Adjusting steering time................. 74
Cleaning the camera area.............. 263
Indicator light........... 0.00 eee ee eee 73
MO@SSAQGS wees 2 2 wars 5 ¥ sees & ¥ BOS & Eo 73
Switching on/off. « ccsiss «season o 6 wasn e 6 enaew 73
Adaptive UIght seiics 6 eva oo nears os was ¥ wee 78
Adaptive light (indicator light)............ 20
Adjusting the additional display........... 14
Adjusting the air distribution. ............ 53
Adjusting the center console lighting....... 41
Adjusting the sound..............-..00- 175
Adjusting the temperature............... 53
Adjusting the vents............. 0. eee ee 54
Advanced Airbag System
Children... 0.2... eee eee ee 212
GOMPONENUS’. ¢ wees » o eae 4 e eee a vee 196
Frontsairbagse. « ser + 2 ccesn vous eo recon x 194
How the components work together... .. 197
UEDA Gin 1 « sunsce « o vsiscete 0 0 siete ao anmene © exettome 189
Indicator light...........-...0--00 000: 18
Airbag system... 2... eee eee 208
Advanced Airbag System............... 193
CaRC bcs ow averiue 6 ¥ wxicend wo tandeDe Bo ewexare wa aie 203
Child restraints..................000. 212
Components (front airbags)............ 196
Danger of fitting a child safety seat on the
front passenger seat..............00.. 190
Disposal zee: ¢ ¢ ees 2 x seen ¢ » eews 2 2 ees 203
Frontiairbagss. « wee oo wae 6 wamen 6 3 saxon 193
How do the front airbags work?......... 198
How many airbags does my vehicle have?. 196
Important information................ 189
Important safety instructions on the knee
airbagisySteM« « aces s ¢ eaiae & x eae 5 x Bee 206
Kneeiairbagsias = 2 saw 2s cin sue es wo 204
MON
ILOFING weenie 5 ceerese a 6 sonnets a 8 ene © 0! oe 200
PASSENGER AIR BAG light............- 200
Repairs’: = seses + & seine & eeoreys « ¥ caves vo Hare 203
Safety instructions................00- 202
Side airbags .......... 00. sce e eee 206
Warning/Indicator lights.............. 200
When must the system be inspected?.... 200
Alarm system

refer to Anti-theft alarm system.......... 27
Alignment pin (tire change) .............. 268
All-weather lights.................00000. 38
AlUSeaSON tiN@Sbercis ss sce ee ers oo mene ve 254
All wheelidrive wes. 2 ose0 22 cee oe even so 89
Alternative routes........... 0... e eee 139
Ambient lighting'ss « esex + eee 3 s eames so oe 40
AMI
refer to Audi music interface....... 158,159
Android Auto
refer to Audi smartphone interface...... 169
Announcements (settings)
refer to Voice guidance..............-. 139
Anti-freeze
Windshield washer system............. 238
Anti-lock braking system (ABS) ............ 86
Anti-Slip Regulation.................0005 86
Anti-theft alarm system .............0000- 27
Anti-theft wheel bolts..............564. 271
Apple CarPlay
refer to Audi smartphone interface...... 169
ARIINCSE:. cxsusne » 5 swsuins 9 0 snamens oo saree % ¥ omeeete @ » 47
ASAE AY": & esware © & enmee @ a eaves ao esecuae a @ eoasare 48
Aspect ratio (Vid@0) wisi si ieee s aaa see 163
ASR
refer to Anti-Slip Regulation............. 86
Audi connect
refer toconnect....... 0.0 e eee eee eee 125
Audi connect Infotainment
Personal hotspot...............000055 126
Services:overview o.. 6 ci sb ee es ees 127
Audi magnetic ride
refer to Suspension control.............. 78
Audi music interface..............0000- 158
Audi music stream
refer to Wi-Fi... 0.2... cee eee eee eee 156
AUdIO FILS resis «6 arene xe cancers xo wrecene ao eenane & 160
Audio player
Bluetooth audio player................ 155
Wi-Fi audio players. « s was ss sees se ees 156
Audio track. ...... cece eee eee
Audi phone box
Audi smartphone interface.......... 169, 173
Audi virtual cockpit
refer to Instrument cluster.............. 10
287