2018 AUDI A7 wheel alignment

Wheels
-Only use tires that are more than six years old when 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 al­low enough a ir circulation to
cool the brake system. If they
do not, this could increase the risk of an accident.
Tire wear/damage
Fig. 188 Tire profile: trea dwear indica ­
tor
Tire wear
Check the tires regularly for wear.
-Inflation pressure that is too low
or high can increase tire wear
considerably.
l) Obey any applicable regulations in your
country.
214
-Driving qu ickly 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 quick ly.
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
c> fig . 188. The letters "TWI"
or triangles on the tire sidewall indicate the location of the tread­
wear indicators.
The t ires have reached the mini­
mum tread depth
l) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones
c> A . "'

Emergency assistance
Taking the wheel off/installing the spare
Follow these instructions step-by-step for chang­
ing the wheel .
Fig. 204 Changing a wheel: using the screw driver handl e
(wit h th e blade re m oved) to turn the bol ts
F ig . 205 Changing a wheel: alignment p in inside t he top
hole
Afte r you have loosened a ll w heel bo lts and
raised t he vehi cle off the ground, remove and re­
p lace the whee l as fo llows:
Removing the wheel
• U se the hexagonal so cket in the screwdriver
handle
t o comple tely remove the topmost
whee l bolt and set it aside on a
clean surfa ce
¢ fig. 204 .
• Screw the th readed end of the alignment pin
from the tool kit hand-tight into the empty bolt
hole¢ fig. 2051> .
• Then remove the other wheel bolts as described
above.
• Takeoff th e wheel leav ing the a lignment pin in
the bo lt ho le
¢ 0 .
l) Applies to vehicles with ceram ic brake rotors*: Use a sec­
ond alignment
pin* (stored in th e spa re whee l well mo ld­
ing) for the lower ho le, fo llowing t he descr iption for the
first alignment pin .
240
Putting on the spare wheel
• Lif t the sp are whee l and caref ully slide it over
t he alignment p in to guide it in place
¢ (D .
• Use the hexagonal socket in the sc rewdr iver
ha nd le to screw in and tighten a ll w heel bolts
slightly.
• Remove the alignment pin and insert and t ight­
en the remaining w heel bo lt slight ly like the
rest.
• Tu rn the jack hand le co unte r-clockw ise to lowe r
t he vehicle unt il t he jac k is f ully re leased.
• Use the w heel bo lt wren ch to tighten a ll wheel
bolts fi rm ly¢
p age 238. Tighten them cross­
wise,
from one bo lt to the (a pprox imately) op ­
posite one, to keep the whee l centered.
([» Note
When remov ing o r installin g the wheel, the
rim co uld hit the brake rotor/ce ramic brake
r otor * and damage t he rotor . Work carefully
and have a second person he lp you.
(D Tips
N eve r use the he xagonal socket in the han dle
of the sc rew drive r to loosen or t ig hten the
whee l bolts.
- Pull the reversible blade from the screwdr iv­
er before yo u use t he hexagona l soc ket in
t h e handle to t urn the whee l bolts.
- When mounti ng tires with
unidirectional
tread design
make sure the tread pattern is
pointed the right
way¢ page 241.
- The wheel bolts sho uld be clean and easy to
t u rn. Check fo r dirt and corrosion on the
mating surfaces of both the wheel and t he
hub. Remove all d irt from these s urfaces be­
fore remounti ng the whee l.

Numbers and
Symbols
4-zone deluxe automatic climate control 58
Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Key recognition . . . . . . . . . . . . . . . . . . . . . . 58
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Residual heat . . . . . . . . . . . . . . . . . . . . . . . . 62
Synchronizing . . . . . . . . . . . . . . . . . . . . . . . . 62
A
A/C (4-zone de luxe automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
A/C (deluxe automatic climate control) 59
ABS
refer to Anti-lock braking system . . . . . . . 120
Accessories . . . . . . . . . . . . . . . . . . . . . . . 52, 257
Active lane assist . . . . . . . . . . . . . . . . . . . . . . 96
Adjusting the vibration warning . . . . . . . . . 98
Cleaning the camera area . . . . . . . . . . . . . 229
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 97
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Switching on/off . . . . . . . . . . . . . . . . . . . . . 97
Adaptive air suspension . . . . . . . . . . . . . . . . 105
Adaptive cruise control . . . . . . . . . . . . . . . . . . 87
Braking guard . . . . . . . . . . . . . . . . . . . . . . . . 92
Cleaning the sensor . . . . . . . . . . . . . . . . . . 229
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Request for driver intervention . . . . . . . . . . 92
Stop -and-go traffic . . . . . . . . . . . . . . . . . . . 90
Adaptive dampers . . . . . . . . . . . . . . . . . . . . . 105
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
Adjusting air distribution (4-zone deluxe auto­
matic climate control) . . . . . . . . . . . . . . . . . . 61
Adjusting air distribution (deluxe automatic
climate control) . . . . . . . . . . . . . . . . . . . . . . . 59
Adjusting the temperature (4-zone deluxe au­
tomatic climate control) . . . . . . . . . . . . . . . . 61
Adjusting the tempera ture (deluxe automatic
climate control) . . . . . . . . . . . . . . . . . . . . . . . 59
Advanced key
refer to Convenience key . . . . . . . . . . . . . . . 68
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
~ Airbag system . . . . . . . . . . . . . . . . . . . . . . . . 166 ....
~ Advanced Airbag System . . . . . . . . . . . . . . lS0 N
8 Advanced Airbag System components . . . 153 00 \.J ' Index
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Children . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Child restraints . . . . . . . . . . . . . . . . . . . . . 172
Components (front airbags) . . . . . . . . . . . 153
Danger of fitting a child seat on the front
passenger seat . . . . . . . . . . . . . . . . . . . . . . 14 7
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Front airbags .. .. .. ............. 150, lSl
How do the front a irbags work? . . . . . . . . 1S6
How many airbags does my vehicle have? 153
How the Advanced Airbag System compo-
nents work together . . . . . . . . . . . . . . . . . 1 SS
Impo rtant information . . . . . . . . . . . . . . . 146
Important safety instructions on the knee
airbag system . . . . . . . . . . . . . . . . . . . . . . . 164
Knee airbags. . . . . . . . . . . . . . . . . . . . . . . . 162
Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . 158
PASSENGER AIR BAG OFF light . . . . . . . . . 158
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Safety instructions . . . . . . . . . . . . . . . . . . . 160
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 164
Side curtain airbags . . . . . . . . . . . . . . . . . . 167
Warning/Indicator lights . . . . . . . . . . . . . 158
When must the system be inspected? 158
Air pressure Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21S
Air pressure (tire pressure monitoring
system) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Air suspension . . . . . . . . . . . . . . . . . . . . . . . 105
Alarm system
refer to Anti-theft alarm system . . . . . . . . . 32
Alignment pin (tire changing) . . . . . . . . . . . 233
All-weather lights . . . . . . . . . . . . . . . . . . . . . . 39
All season tires . . . . . . . . . . . . . . . . . . . . . . . 220
All wheel drive . . . . . . . . . . . . . . . . . . . . . . . 124
Alternator
refer to Alternator (indicator light) . . . . . . 14
Alternator (indicator light) . . . . . . . . . . . . . . 14
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . 42
Anti-freeze Windshield washer system . . . . . . . . . . . . 203
Anti-lock braking system . . . . . . . . . . . . . . . 120
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 16
Anti-Slip Regulation . . . . . . . . . . . . . . . . . . . 120
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 16
Anti-theft alarm system . . . . . . . . . . . . . . . . . 32
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sl
259