wheel alignment AUDI S3 SEDAN 2015 Owners Manual

"' N
~
-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 .
Treadwe ar indic ato r
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 even ly around the tire per­
pend icular to the running direc­
tion
¢ fig. 169. The letters "TW I"
or triangles 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¢ &.
Whe el rot ation
Rotating the wheels regularly is
recommended to ensure the tires
;;; l) Obey any applicable regu lation s in your ~
~ country . ....
Tires and wheels
wear evenly. To rotate wheels, in­
stall the wheels from the rear
axle on the front axle and vice ver­
sa. This will allow the tires to
have approximately the same
length of service life.
F or unidirectional tires, make sure
the tires are installed according to
the running direction indicated on
the tire sidewall¢
page 245.
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 immed iately .
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.
A WA RNING
-
Tread that has worn too low or
different tread depths on the
tires can reduce driving safety.
This can especially have a
223

Eme rge ncy ass ista nce
ground. The base @ must be vertical under the
lifting point @.
.. Wind the jack up further until the flat tire
comes off the ground
c> .&_.
Position the vehicle jack onl y under the designat­
ed lifting points on the sill
c> fig. 178. There is ex­
actly
one location for each wheel. The jack must
not be positioned at any other location
c> &c>Q) .
An uns table s urfac e under the jack can cause the
vehicle to slip off the jack. Always provide a firm
base for the jack on the ground . If necessary
place a sturdy board or similar support under the
jack. On
har d, sli ppery su rfaces (such as tiles)
use a rubber mat or similar to prevent the jack
from slipping
c> & .
A WARNING
-
-You or your passengers could be injured
wh ile chang ing a wheel if you do not follow
these safety precautions:
- Position the vehicle jack only at the desig­
nated lifting points and align the jack.
Otherwise, the vehicle jack could slip and
cause an injury if it does not have suff i­
cient hold on the vehicle.
-A soft or unstable surface under the jack may cause the vehicle to slip off the jack.
Always provide a firm base for the jack on
the ground. If necessa ry, use a sturdy
board under the jack.
- On ha rd, slippery surface (such as tiles)
use a rubber mat o r similar to prevent the
jack from slipping .
- On ly raise your vehicle with the vehicle
jack provided by the factory . If you use a
vehicle jack for another vehicle, your vehi­
cle can slide and cause injury.
- Changes in temperature or load can affec t
the height o f the vehicle .
- Never start the engine when the vehicle is
raised, which could cause an accident.
- Support the vehicle securely with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potentia l risk for injury .
244
-To help prevent injury to yourself and your
passengers :
- Do not ra ise the vehicle until you are su re
the jack is securely engaged.
- Passengers must not remain in the veh icle
when it is jacked up.
- Make sure that passengers wait in a safe place away from the veh icle and we ll away
from the road and traffic.
- Make sure jack position is correct, adjust
as necessary and then continue to raise
the jack.
- Changes in temperature or load can affect
the height of the vehicle.
(D Note
Do not lift the vehicle by the sill. Position the
vehicle jack only at the des ignated lifting
po ints on the sill. Otherwise, your vehicle will
be damaged.
Taking the wheel off /installing the spare
Follow these instructions step-by-step for chang­
ing the wheel.
Fig. 180 Chang ing a whee l: us ing the screwdriver hand le
(w ith the blade removed) to turn the bolts
Fig. 181 Changing a w heel: alignment pin inside the top
hole

M N
0 > co ,...., \!) 1.1'1
1.1'1
1.1'1
,....,
After you have loosened all wheel bolts and
raised the vehicle
off the ground, remove and re­
place the whee l as fo llows:
Removing the wheel
.,. Use the hexagonal socket in the screwdriver
handle
to completely remove the topmost
whee l bolt and set it aside on a
clean surface
¢ fig. 180 .
.,. Screw the threaded end of the alignment pin
from the tool kit hand-tight into the empty bolt
hole¢
fig. 181.
.,. Then remove the other wheel bolts as descr ibed
above .
.,. Take
off the wheel leav ing the alignment pin in
the bolt hole ¢Q).
Putting on the compact spare wheel
.,. Lift the spare wheel and carefully slide it over
the a lignment pin to guide it in place ¢0 .
.,. Use the hexagonal socket in the screwdr iver
handle to screw in and tighten all wheel bolts
slightly.
.,. Remove the alignment pin and insert and tight­
en the remaining whee l bolt slightly like the
rest .
.,. Turn the jack handle counter-clockwise to lower
the vehicle until the jack is fully released.
.,. Use the wheel bolt wrench to t ighten all wheel
bolts firmly¢
page 243. Tighten them cross­
wise,
from one bolt to the (approx imately) op ­
pos ite one, to keep the wheel centered .
0 Note
When removing or installing the wheel, the
r im could hit the brake rotor and damage the
rotor. Work carefully and have a second per­
son help you.
@ Tips
Never use the hexagonal socket in the handle
of the screwdr iver to loosen or tighten the
wheel bolts.
- Pull the reversible blade from the screwdriv­
er before you use the hexagonal socket in
the handle to turn the wheel bolts.
Emergency assistance
-When mounting tires with unidirectional
tread design
make sure the tread pattern is
pointed the right way¢
page 245 .
-The wheel bolts shou ld be clean and easy to
t ur n. Check for dirt and corrosion on the
mating surfaces of both the wheel and the
hub. Remove all dirt from these surfaces be­
fore remounting the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the
right direction .
U sing a spare tire with a tread pattern
intended for use in a specific direction
When using a spare t ire with a tread pattern in­
tended for use in a specific direction, please note
the following:
- The direct ion of rotation is marked by an arrow
on the side of the tire.
- If the spare tire has to be insta lled in the incor­
rect direction, use the spare tire only tempora­
r ily since the tire w ill not be able to achieve its
optimum performance characteristics with re­
gard to aquaplaning, noise and wear .
- We recommend that you pay part icular atten­
tion to th is fact during wet weather and that
you adjust your speed to match road condi­
tions.
- Replace the flat tire with a new one and have it
installed on your veh icle as soon as possible to
restore the handling advantages of a unidirec­
tional tire.
Notes on wheel changing
Please read the information ¢ page 221 if you
are going to use a spare tire which is different
from the tires on your vehicle.
After yo u change a tire:
-Check the tire pressure on the spare immedi-
ately after installation.
lill-
245

Index
A
A/C
refer to Climate control system (automatic) .66
re fer to Climate control system (manual) . 65
A/C (automatic climate control system) . . . . 66
A/C (manual climate control system) . . . . . . 65
Accessories . . . . . . . . . . . . . . . . . . . . . . . 5 7, 2 64
Active lane ass ist . . . . . . . . . . . . . . . . . . . . . 106
Activating vibration warning . . . . . . . . . . . 108
Adjusting steering time . . . . . . . . . . . . . . . 108
Clean ing the camera area . . . . . . . . . . . . . 236
Driver messages . . . . . . . . . . . . . . . . . . . . . 107
Indicator light . . . . . . . . . . . . . . . . . . . . . . 107
switching on and
off . . . . . . . . . . . . . . . . . 107
Adapt ive cruise control. . . . . . . . . . . . . . . . . . 96
Automatic transmission . . . . . . . . . . . . . . 100
C leaning the sensor . . . . . . . . . . . . . . . . . . 236
Driver messages . . . . . . . . . . . . . . . . . . . . . 102
General Information . . . . . . . . . . . . . . . . . . 97
Request for driver intervention . . . . . . . . . 102
Stop-and-go traffic . . . . . . . . . . . . . . . . . . 100
Adaptive dampers.................. ... 112
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 25
Adaptive light .. .... .... ..... .. .. .. 43, 112
I ndicator l ight . . . . . . . . . . . . . . . . . . . . . . . 24
AdBlue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Adjusting air distribution (Climate control sys-
t em).... .. .. .. ................. .. .... 67
Ad justing air vents . . . . . . . . . . . . . . . . . . . . . 68
Adjusting air vents (manual climate control
system) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Adjusting automatic headlights . . . . . . . . . . 45
Adjusting the center console lighting . . . . . . 47
Adjusting the temperature manual climate control system . . . . . . . . . . 65
advanced key
refer to Convenience key . . . . . . . . . . . . . . . 75
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 20
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . 168
Advanced Airbag-System . . . . . . . . . . . . . . 152
Advanced Airbag System components . . . 155
Ca re. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Children . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
266
Child restraints ..... .. .............. . 174
Components (front airbags) . . . . . . . . . . . 155
Danger of fitting a ch ild seat on the front
passenger seat . . . . . . . . . . . . . . . . . . . . . . 149
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Front airbags . . . . . . . . . . . . . . . . . . . 152, 153
How do the front airbags work? . . . . . . . . 158
How many a irbags does my vehicle have? 155
How the Advanced Airbag System compo-
nents work together . . . . . . . . . . . . . . . . . 157
Important information . . . . . . . . . . . . . . . 148
Important safety instructions on the knee
airbag system . . . . . . . . . . . . . . . . . . . . . . . 166
Knee a irbags. . . . . . . . . . . . . . . . . . . . . . . . 164
Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . 160
PASSENGER AIR BAG OFF light . . . . . . . . . 160
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Safety instructions . . . . . . . . . . . . . . . . . . . 162
Side a irbags . . . . . . . . . . . . . . . . . . . . . . . . 166
Side curtain airbags . . . . . . . . . . . . . . . . . . 169
Warning/Indicator lights . . . . . . . . . . . . . 160
When must the system be inspected? . . . 160
Alarm system
refer to Anti-theft alarm system . . . . . . . . . 33
Alignment pin (changing the whee l) . . . . . . 241
All-weather lights (LED headlights) . . . . . . . . 43
All season tires . . . . . . . . . . . . . . . . . . . . . . . 229
All wheel drive . . . . . . . . . . . . . . . . . . . . . . . 127
Alternator
refer to A lternator (indicator light) . . . . . . 19
Alternator (indicator light) . . . . . . . . . . . . . . 19
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . 46
Ant i-freeze
refer to Engine coolant . . . . . . . . . . . . . . . 205
Anti-lock braking system . . . . . . . . . . . . . . . 123
Ind icator light . . . . . . . . . . . . . . . . . . . . . . . 21
Anti-slip regulation . . . . . . . . . . . . . . . . . . . 123
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 21
Ant i-theft alarm system . . . . . . . . . . . . . . . . . 33
Anti -theft protection
Electronic immobilizer . . . . . . . . . . . . . . . . . 38
Audi active lane assist
refer to Active lane assist . . . . . . . . . . . . . 106
Audi adaptive cruise control
refer to Adaptive cruise control. . . . . . . . . . 96
Audi adaptive light
refer to Adapt ive light . . . . . . . . . . . . . . . . . 43