wheel alignment AUDI S4 2015 Owners Manual

Incorrect wheel alignment
Incorrect wheel alignment can
cause excessive tire wear, im­
pairing the safety of the vehi­
cle. If tires show excessive
wear, have the wheel alignment checked by an authorized Audi
dealer or qualified workshop.
All wheel drive
Vehicles with quattro must al­
ways have tires of the same size, construction and tread
type. For details see
¢ page 190 .
A WARNING
Sudden tire failure can lead
to loss of control, a crash and
serious personal injury!
-Never drive a vehicle when the tread on any tire is worn
down to the wear indica­
tors.
-Worn tires are a safety haz­ ard, they do not grip well on
wet roads and increase your risk of "hydroplaning" and
loss of control.
- Always keep chemicals that
can cause tire damage, such
as grease, oil, gasoline and brake fluid away from tires.
-
Tires and wheels 24 7
-Tires age even if they are not being used and can fail
suddenly, especially at high
speeds. Tires that are more
than 6 years old can only be
used in an emergency and
then with special care and at lower speeds.
-Never mount used tires on your vehicle if you are not
sure of their "previous histo­ ry ." Old used tires may have
been damaged even though
the damage cannot be seen
that can lead to sudden tire
failure and loss of vehicle
control.
•
•
'

260 What do I do now ?
What do I do now?
Vehicle tool kit
The tools ore stored underneath the floor
panel in the luggage comportment.
Fig. 195 Seda n Lu ggage compart ment : too l kit
Fig. 196 a llroa d Lu ggage compart men t: too l kit
When you need access to the vehicle tool kit
or jack* , you will need to take out the spare
tire and cover
Q page 260 .
Depending on your vehicle's equipment, the
tool kit may also be located under the cargo
floor cover @
Q fig. 196 behind the seat back­
rest .
The vehicle tool kit includes:
- Hook for removing wheel covers *
- Alignment pin for changing the wheel
- Screwdriver w ith reversible blade
- T ool for changing light bulbs
- Reversible bit (reversible Torx bit for chang- ing light b ulbs)
- Rod for jack
- Jack*
- Lug wrench
- Towing eye Some of the vehicle items listed above are
provided on certain mode
ls only or are option­
al extras.
Before ret urning the jack * to its p lace, re trac t
the jack arm f ully.
A WARNING
-
- Never use the screw driver hex head to
tighten wheel bo lts, since the bolts can­
not attain the necessary tightening tor­
que if you use the hex head, potentially
causing an acc ident .
- The factory-supplied jack is intended on­
ly for your vehicle model. U nder no c ir­
cumstances should it be used to lift
heavy veh icles o r othe r loads; you risk in­
juring yo urself .
- Never start the engine when the vehicle
is raised, wh ich could cause an acc ident.
- 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.
Space-saving spare tire
(compact spare tire)
Appl ies to veh icles : w ith space -sav ing spare tire
The spore tire/wheel is located in the luggage
comportment under the cargo floor cover . It
is intended for shor t-term u se only.
F ig. 197 Spa re ti re
Removing the spar e ti re
., lift the cargo floor by the p lastic handle
Q fig. 197 .
., Hook the handle into the luggage compart­
ment wea ther strip.

266 What do I do n ow ?
c:> fig. 203 . Behind the marking, there is a
lifting p oint on the sill for the veh icle jack.
• Turn the
veh icle j ack located under the lift­
ing point on the si ll to raise the jack until
the jaw
c:> fig. 204 ® covers the notch on
the vehicle
c:> &_ c:>(D .
• Align t he vehicle jack so the jaw ® covers
the notch and the base plate @ is flat on
the floor. The base plate @ must be
vertical
under the lifti ng point @.
• Install the rod on the vehicle jack: Insert the
rod into the opening on the handwheel. Turn
the rod left or right to secure it .
• Contin ue raising the jack with the rod until
the wheel lifts off the ground slightly.
Position the vehicle jack
onl y under the desig­
nated lifting points on the sill
c:> fig. 203 .
There is exactly one location for each wheel.
The jack must not be positioned at any other location
c:> ,&. c:>(D .
Soft ground under the jack can cause the ve­
hicle to slip off the jack. Always place the jack
on firm ground. Use a flat, stable support if necessary . Use a non-slip surface such as a
rubber mat on a
slipp ery surfac e such as tile .
A WARNING
-You or your passengers could be injured
wh ile chang ing a wheel if you do not fol­
low these safety precautions :
- Position the vehicle jack only at the
des ignated lifting points and align the
jack. Otherwise, the vehicle jack could slip and cause an injury if it does not
have sufficient hold on the veh icle .
- A soft or unstable surface under the
jack may cause the veh icle to slip off
the jack . A lways provide a firm base for
the jack on the ground.
If necessary,
use a sturdy board under the jac k.
- On hard, slippery surface (such as tiles)
use a rubber mat or similar to preven t
the jack from s lipping.
- T o help p revent injury to yourself and
yo ur passengers: -
Do not raise the vehicle until you are
sure the jack is securely engaged.
- Passengers must not remain in the ve­
hicle when it is jacked up.
- Make sure that passengers wait in a
safe place away from the veh icle and
well away from the road and traffic .
- Make sure jack pos ition is correct, ad­
j ust as necessary and then cont inue to
raise the jack.
(D Note
Do not lift the vehicle by the sill. Position
the veh icle jack only at the designated lift­
i ng points on the sill. Otherwise, your vehi­
cle will be damaged.
Taking the wheel off/installing the spare
tire
Follow these instructions step-by-step for
changing the wheel .
Fig. 205 C ha nging a w hee l: us ing t he screwd rive r han ­
dle (w it h th e blade re m oved) to turn the bolts
Fig . 206 Ch ang ing a w hee l: alignment p in in side t he
top hole
After you have loosened all wheel bo lts and
raised the vehicle off the g round, remove and
replace the wheel as follows: .,..

'"" N
0 ::.,: co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Removing the wheel
"' Remove the topmos t wheel bolt completely
with the
he xagonal socket in t he screwdriv ­
er hand le (vehicle tool kit)
c::> fig. 205 and
set it aside on a
clean surface.
"' Screw the threaded end of the
alignment
pin
from the tool k it hand-tight into the
empty bolt hole
c::> fig. 206.
"'T hen remove the other wheel bo lts as de­
scribed above .
"'T ake off the wheel leav ing the alig nment pin
i n t he bolt hole
c::> CJ).
Putting on the spare tire
"' allroad : Inflate the inflatable spare tire
c::> page 262
"' Push the spare tire over the a lignment pin.
"' Screw o n the w heel bolts and tighten them
slightly using the hexagonal socket.
"' Remove the alignment pin and insert and
t ighten the remaining whee l bo lt s light ly
Li ke the rest.
"' Turn the jack handle counter-clockw ise to
lower the vehicle unt il the jack is f ully re­
l eased .
"' Use the wheel bolt w rench to t ighten all
whee l bolts firmly
c::> page 265. Tig hten
them
in a crisscross pattern, from one bo lt
to the (approx imately) opposi te o ne, to keep
t h e whee l cen te red.
"'P erfo rm the steps req uired after changing
t h e whee l
c::> page 26 4, After changing a
wheel .
The hex agonal so cket m akes it easier to re­
move the w heel bo lts from the r im . Care
should be taken when removing the reversible
b lade .
@ Note
When removing or ins tal ling the wheel,
the rim could hit the brake rotor and dam­
age the rotor . Wor k carefully and have a
second person to he lp you.
@ Tips
- When mounting tires with unidirectional
tread design
ma ke s ure the tread pat-
What do I do now? 267
'
tern is po inted the righ t way
c::> page 267.
- T he w heel bolts shou ld be clean an d easy
to t urn . Check fo r dirt an d corrosion on
the mating surfaces of both the w heel
and the hub. Remove all d irt from these
surfaces before remounting the whee l.
- Do not use the hexagonal socket in the
sc rewd river handle to loosen or t ighten
the whee l bolts.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in
the right direction.
U si ng a spa re tire with a tread pattern
intended for use in a specific di rection
When using a spare t ire with a tread patter n
intended for use in a spec ific d irection, please
note the following :
- The d irect ion of rotation is marked by an
ar­
row on the side of the t ire .
-If the spare tire has to be insta lled in the in­
correct d irect ion, use the spare tire only
temporarily s ince the tire will not be able to
achieve its optimum performance cha racte r­
istics w it h regard to aquap la ni ng, no ise and
wear .
- We recommend that you pay part icu lar at­
t en tion to th is fact during wet weather and
that you adjust your speed to match road
condi tions.
- Replace the flat t ire wi th a new one a nd
have it insta lled o n you r vehicle as soo n as
pos sible to res to re the hand ling advant ages
o f a u nidirec tional tire.
Notes on wheel changing
Please read t he info rmation c::> page 248, New
tires and replacing tires and wheels
if yo u a re
going to use a spare tire wh ich is different
from the tires on your vehicle.
After yo u change a tire:
IJI,-
•
•