2018 AUDI A3 SEDAN change wheel

Wheels
~ Select in the Infotainment system: IMENUI but ­
ton
> Vehicle > left control button > Service &
checks > Tire pressure monitoring > Store tire
pressure> Yes, store now.
(D Tips
Do not store the tire pressures if snow chains
are installed.
Tire pressure monitoring
system
(.L) General notes
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat ­
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or t ire inflation pressure la­
bel, you should determine the proper tire infla­
tion pressure for those tires).
As an added safety feature, your vehicle has been
equ ipped w ith a t ire pressure monitoring system
(TPMS) that illuminates a low tire pressure tell­
tale when one or more of your tires is significant­
ly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a signifi­
cantly under-inflated tire causes the tire to over­ heat and can lead to tire failure . Under -inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop­
p in g ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re­
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the leve l
to trigger illuminat ion of the TPMS low tire pres­
sure telltale .
Your vehicle has also been equipped with a TPMS
malfunct ion indicator to indicate when the sys­
tem is not operating properly. The TPMS mal ­
function indicator is combined with the low tire
pressure telltale. When the system detects a
350
malfunction, the telltale will flash for approxi ­
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the mal­
function exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction tel ltale after replac ing one or
more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.
Description
Applies to: vehicles with tire pressure monitoring system
The tire pressure monitoring system monitors
the pressure in the four tires when driving.
The system uses sensors that measure the tema
perature and pressure in the tires. The data is
sent from these sensors to the control module by
radio frequency .
The tire pressure monitoring system shows the
current pressures and temperatures of the tires
in the Infotainment system while driving
¢ page 351. It also compares the current tire
pressures with the stored tire pressures and
gives a warning if the tire pressure is different
from what is stored
¢ page 351.
The system does not detect if the stored tire
pressures match the recommended tire pres ­
sures . You must store the tire pressures again
¢ page 352:
- every time the tire pressures change, for exam ­
ple when the load in the vehicle changes,
- after replacing a tire, or
- if wheels with new wheel sensors are used.

u. 00 .-< N l'­ N .-< 0 N > 00
A WARNING
-The tire pressure monitoring system assists
the driver in monitoring tire pressures . The
driver is responsible for having the tires in­
flated to the correct pressure.
- Do not change the tire pressure when the
temperature of the tire is extremely high.
This could result in serious damage to the
tire and even cause the tire to burst, in­
creasing the risk of an accident.
- A tire with low pressure flexes more. This
heats the tire up too much. This could cause
the tread to separate and even cause the
tire to burst, increasing the risk of an acci­
dent.
- The tire pressure monitoring system does
not warn about damage or defects in the
tire construction that could cause the tire to burst, for example . Inspect your tires regu­
larly .
(D Tips
-If tires are replaced, the sensors/valves do
not need to be removed or replaced. Just re­
placed the valve stem and, if necessary, the
valve and the wheel electronics. If you have
questions, see an authorized Audi dealer or
authorized Audi Service Facility .
- An incorrect display or a malfunction in the
tire pressure monitoring system can occur
after using the tire mobility kit . Have the
sensors replaced by an authorized Audi
dealer or authorized Audi Service Facility.
- For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
r=;,page 386.
Displaying tire pressures/temperatures
Applies to: vehicles with tire pressure mo nito ring system
Requirement: you must be driving the vehicle.
"'Select in the Infotainment system: the I MENU I
button > Vehicle > left control button > Service
& checks > Tire pressure monitoring > Display
tire pressures.
Wheels
The current tire pressures are shown in green,
yellow or red numbers in the Infotainment sys­
tem:
- Green: the current tire pressure and the speci­
fied tire pressure are approximately the same.
- Yellow: the current tire pressure is too low
compared to the specified tire pressure.
-Red: the current tire pressure is extremely low
compared to the specified tire pressure .
The specified tire pressure is the last tire pres­
sure that was stored
r=;, page 352.
Note that the tire pressure also depends on the
temperature of the tire. The tire pressure in ­
creases as the engine becomes warmer while
driving.
A WARNING
Read and follow the important information
and notes
"*page 350.
(D Tips
The tire pressure or temperature is not dis­
played while the vehicle is stationary and in
adaptation mode. Dashes--.-- are shown in
place of the pressure and temperature.
ill Tire pressure loss
Applies to: vehicles with tire press ure mo nito ring system
-
If the [tE indicator light turns on, the pressure in
at least one tire is too low or new sensors were
not adapted:
RE Indicator light turns on after turning the
ignition on
The tire pressure is too low compared to the
specified pressure .
.,. Check and store the tire pressure(s) the next
time it is possible
"*page 352.
RE Indicator light turns on while driving
Wheels with new sensors were not adapted or
the tire pressure has reached a critical level com­
pared to the specified pressure.
"'Avoid unnecessary steering and braking maneu-
vers.
..,_
351

Wheels
~ Adapt your driving style to the situation.
~ Stop as soon as possible and check the tire(s) .
~ If it is possible to continue driving, see an au-
thorized Audi dea ler or authorized Audi Service
Facility immediately and have your tire(s) re­
paired or replaced.
A WARNING
Read and follow the important information
and
notes ~ page 350.
Storing new tire pressures
App lies to: ve hicles w ith tire press ure m on itoring system
Correctly stored tire pressure specifications are
necessary for reliable tire pressure monitoring.
-
It is always necessary to store the tire pressures
when the tire pressures are modified, for exam­ ple due to a change in load. or when new sensors
are installed .
~ Before storing the tire pressures, make sure the
tire pressures of all four tires meet the speci­
fied values and are adapted to the load
~ page 341, fig . 2 78 . Only correct and store
the pressure in tires whose temperature is ap­
prox imat ely the same as the ambient tempera­
ture .
If the temperature of the tire is higher
than the ambient air temperature, the tire
pressure must be increased approximate ly
3 .0 PSI (0 .2 bar) above the va lue on the sticker .
~ Switch the ignition on.
~ Select in the Infotainment system: IMENUI but­
ton
> Vehicle > left control button > Service &
checks > Tire pressure monitoring > Store tire
pressure > Yes, store now .
After storing the
tire pressu res, the t ire pressu re monitoring sys­
tem measures the current pressures wh ile driv­
in g and stores them as the new specified pres­
sures.
~ If the changed tire pressures are not displayed
in the Infotainment system, drive the vehicle
for approximate ly 10 minutes so that the sen­
sor signal from the wheels is received again.
During this adaptation phase, --.-- is displayed
for the pressure and temperature and the tire
pressure mon itor ing system is only partially
ava ilable. It only provides a warning if one or
352 more
tire pressures is below the minimum per­
mitted specified pressure.
If the
[I] ind icator light turns on and the mes­
sage
Tire pressure : wheel change detected .
Please check all tires and store pressures in
MMI also appears, the system has detected that
the position of the sensors has changed because
of a tire rotation, or that new sensors were in­
stalled. Store the new tire pressures.
A WARNING
Read and follow the important information
and notes
~pag e 350.
Malfunctions
Applies to: vehicles with t ire pressure mo nitori ng syste m
If the tire pressure monitoring system is not
available, t he
mm in dicator light appears in the
instr umen t cluste r display along with the mes­
sage
Tire pressure : malfun ction! See owner's
manual.
-
If the ffim ind icator light appears after switch­
in g the ignitio n on or wh ile dr iving and the
[IJ in­
dicator light also blinks for approximately one
minute and then stays on, there is a system ma l­
function . The fo llowing are examples of situa­
tions that could cause a malfunction:
- If the message appears at the end of the adap ­
tation phase, the system may not detect one or
several of the whee l sensors necessary for pres­
sure monitoring. This may res ult from one or
more whee ls being installed without wheel sen­
sors or with incompatible wheel sensors.
- A wheel sensor or another component has
fa iled.
- Using snow chains can affect the function of
the system because of the shielding effect of
the chains.
- The tire pressure monitoring system is not
avai lab le due to a ma lfunction.
- Transmitters with the same frequency, such as
headphones or remote-controlled devices, may
cause a temporary system malfunct ion due to
the strong electromagnetic field.
.,.

u. 00 .-< N l'­ N .-< 0 N > 00
A WARNING
-Read and follow the manufacturer's safety
precautions o n the compressor and in th e
in structions on t he bottle of sealant .
- If a tire pressure of 29 ps i (200 kPA) cannot
r e ached after inflating for 6 minutes, then
the tire is too severely damaged . Do not
continue d riving.
- If the t ire cannot be repaired with the tire
sealant, see an authorized Audi dealer or au­
tho rized Aud i Serv ice Facility for ass istance.
(D Tips
Do not operate the compressor for more than
six m inutes continuously, or it can overheat.
Once the compressor has coo led, you can con­
tinue to use it.
Completing
Applies to: vehicles with tire mobility kit
.,. Affix the st icke r that says "max . S O mph (max .
80 km/h)" that is provided with the tire mobili ­
ty kit within the driver's field of vision .
.,. Stop the vehicle after driving for about 10 mi ­
nutes and check the tire pressure.
.,. If the t ire pressure is lower than 19 ps i (130
kPA), then the tire is too severely damaged. Do
not cont inue driving.
A WARNING
Pay attent ion to the following after repair ing
the ti re:
- Do not drive faster than SO mph (80 km/h) .
- Avoid hard acceleration, brak ing sharp ly,
and fast cornering.
- The veh icle may become more diff icult to
control.
- If the t ire is too severely damaged, see an
authorized Audi dealer or authorized Aud i
Service Facility for assistance .
@ For the sake of the environment
You can give the used t ire sealant bottle to an
author ized Audi dealer or authorized Audi
Serv ice Facility for disposal.
Em ergenc y ass is tanc e
(D Tips
Remember to obtain a new bott le of sealant
from an authorized A udi dealer or authorized
Audi Service Fac ility after repairing a tire.
Replacing wheels
Before changing a wheel
Observe the following precautions for your own
and your passenger's safety when changing a wheel.
.,. After you experience a t ire failure, pull the car
we ll away from moving traffic and try to reach
level grou nd befo re yo u stop ¢&, .
.,. All passengers should leave the car and move
t o a safe location ( for ins tance, behind the
gua rdrail) ¢&, .
.,. Engage the pa rking brake to prevent your vehi ­
cle from rolling unintentiona lly ¢
_A .
.,. Move selector le ver to position P ¢ _A .
... Jfyou are towing a trai ler, unhitch the trailer
from your vehicle.
.,. Take the jack ~ page 360 and the sp a re tire
ca:;, page 369 out of the luggage compartment .
A WARNING
You or you r passengers could be injure d while
ch anging a whee l if you do no t follow these
safety precaut ions :
- If you have a fla t tire, move a safe dis tance
off the road. Turn off the eng ine, turn the
emergency flashers on and use other warn ­
ing devices to alert other motorists.
- Make sure that passenge rs wait in a safe
p lace away from the vehicle and well away
from the road and traffic.
- To help preven t the vehicle from moving
suddenly and possib ly slipping off the jack,
always fully set the park ing brake and bloc k
the front and back of the wheel diagonally
opposite the wheel being changed. When
one front wheel is lifted off the ground,
p lacing the Au toma tic Transmission in P
(Park) will
not prevent the vehicle from
mov ing.
363

Emergency assistance
-Before you change a wheel, be sure the
ground is level and firm. If necessary, use a
sturdy board under the jack.
-Always store the veh icle tool kit , the jac k
and the replaced tire in the luggage com­ partment
c:> page 255.
(D Tips
Obey all laws.
Changing a wheel
When you change a wheel, follow the sequence
described below step -by-step and in exactly that
order .
1. Remove the decorative wheel cover*. For
more details see also
c:> page 364, Decor a­
tive wheel covers
or c:> page 365, Wheels
with wheel bolt caps.
2 . Loosen the wheel bolts c:> page 365 .
3. Locate the proper mounting point for the
jack and align the jack below tha t point
c:> page 366 .
4. Raise the car w ith the jac k c:> page 366 .
5. Remove t he wheel with the flat tire an d t hen
ins tall
the spare c:> page 367.
6. Tighten all wheel bolts light ly .
7.
Lower the veh icle w ith the jack .
8. Use t he wheel bo lt wrench and
firmly t ighten
all whee l bolts
c:> page 365 .
9. Replace the decorative wheel cover* .
A WARNING
Always read and fo llow all WARNI NGS and in­
forma tion
c:> .& in Raising the vehicle on
pag e 366
an d c:> pag e 368 .
After changing a wheel
A wheel change is not complete without the do­
ing the following .
.,. Always store the vehicle tool kit, the jack * and
the replaced t ire in the luggage compartment
c:> pag e 255 .
.,. Check the tire pressure on the spare wheel im­
m ed iate ly aft er mo unt ing it.
364
.,. As soon as possib le, h ave the tightening tor­
ques
on a ll wheel bolts checked with a torq ue
w rench . The correct tighteni ng torq ue is
90 ft lb (120 Nm).
.,. Have the flat t ire replaced as soon as poss ib le .
(D Tips
-If you not ice that the wheel bo lts are cor­
roded and d ifficult to turn while c hanging a
t ire , th ey s hou ld be replaced before you
check the t igh tening torque.
-Dr ive at reduced speed until yo u have the
t igh tening torques checked .
- After chang ing a wheel, the tire p ressure in
all four tires must be checked/cor rected and
t h e tire pressure monito ring ind icator must
be stored in th e
MMI r:::;, pag e 349 .
Decorative wheel covers
Applies to: vehicles with decorative wheel covers
The decorative wheel covers must be removed
first to access the wheel bolts .
Fig. 285 Chang ing a whee l: Remov ing t he wh eel cover
Removing
.,. In sert t he hook (p rov ided w ith the vehicle t ool
kit ) in t he hole in the w heel hu b cover.
.,. Pull off the decorative wheel cover c:> fig . 285 .

Emergency assistance
Raising the vehicle
The vehicle must be li~ed with the jack first be­
fore the wheel can be removed.
Fig. 288 Sill panels : mark in gs (exa mple)
Fig. 289 Sill : positio nin g th e ve hicle jack
,.. Engage the parking brake to prevent your vehi­
cle from rolling unintentionally.
,.. Move the selector lever to position P.
,.. Find the marking (imprint) on the sill that is
nearest the wheel that will be changed
c> fig . 288 . Behind the marking, there is a lift­
ing point on the sill for the vehicle jack.
,.. Vehicles with a sill: Note the position of the sill
when positioning the vehicle jack
c::> fig. 289.
,.. Place the vehicle jack (vehicle tool kit) on a firm
surface. Use a flat, stable support if necessary.
On a slippery surface such as tile, you should
use a non-slip pad (such as a rubber mat)
c::> ,&..
,.. Turn the vehicle jack located under the lifting
point on the sill to raise the jack until its arm @
c> fig. 289 is located under the designated plas­
tic mount
c::> ,& , c::>G) .
,.. Align the jack so that its arm@ c::> fig. 289 en­
gages in the designated lifting point in the door
sill and the movable base @ lies flat on the
ground. The base @ must be
vertical under the
lifting point @.
366
,.. Wind the jack up further until the flat tire
comes off the ground
c::> ,&. .
Position the vehicle jack only under the designat­
ed lifting points on the sill
c::>fig. 288. There is ex­
actly
one location for each wheel. The jack must
not be positioned at any other location
c::> & c::>(I) .
An unstable surface 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
hard, slippery surfaces (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
while changing 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 suffi­
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 necessary, use a sturdy
board under the jack.
-On hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent the
jack from slipping.
-Only 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 load can affect the height of
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 potential risk for injury .
-To help prevent injury to yourself and your
passengers:

Emergency assistance
-Pull th e revers ible blade from the sc rew driv ­
e r before you use the he xag onal socket in
the handle t o turn the w heel bo lts .
- W hen mounting ti res w ith
unidirectional
tread design
make sure the t read pattern is
po inted the r igh t way
c> page 36 8.
-The wheel bolts should be clea n and easy to
turn . C heck for di rt and c orros io n on t he
mating surfaces o f both the wheel an d the
hu b. Remove all dirt from t hese surfaces be­
fo re r emo untin g the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mount ed with th eir tread pattern pointed in the
right direction .
Using a spare tire with a tread pattern
intended for use in a specific direction
W hen using a spare ti re with a tread patte rn in­
tended fo r use in a spec ific d ir e ction, please note
t he following:
- The direct ion of rotat io n is marked by an a rrow
o n the side of the tire.
- If the spare tire has to be installed in the incor­
r ect d irection, use the spare tire only tempora­
r ily s ince the t ire w ill not be ab le to achieve its
o pti mum p erf ormance c harac ter istics wi th re­
gard to a quaplaning, noise and wea r.
- We recommen d that you pay particular atten ­
t ion to this fac t during wet weathe r and that
yo u adju st yo ur spe ed to match roa d condi­
tio ns.
- Replace t he flat t ire with a new one and have i t
in stall ed on yo ur vehicle as soon as possible to
r e stor e th e han dling adv antage s of a un id ir e c­
ti on al ti re.
Notes on wheel changing
Please read the info rmation c> page 33 7 if you
are going to use a spare tire which is different
from the tires on yo ur vehicle .
Afte r you change a tire:
-Check the tire pressure on the spare immedi­
ately after installation.
368
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as pos­
sible by your authorized Audi dealer or a
qualified service station.
- With steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of
90 ft lbs (120 Nm).
- If you notice that the wheel bolts are corroded
and difficult to turn while changing a tire ,
they should be replaced before you check the
tightening torque .
- Replace the flat tire with a new one and have
it installed on your vehicle as soon as possi­
ble. Remount the wheel cover.
Until then, drive with extra care and at reduced
speeds.
A WARNING
- If you are goi ng t o equip yo ur vehicle with
t ires or r ims which diffe r from those which
wer e fac to ry install ed, th en be su re to read
t he infor matio n
c> pag e 33 7.
- Always mak e sure th e damag ed wheel or
e ve n a fl at tire and th e jack and to ol kit ar e
pr op erl y se cure d in t he l uggage com part­
me nt a nd are no t loos e in the pass eng er
c omp artment.
- In a n ac cide nt or sudde n maneuver they
co uld fly forw ard, i njuring a nyon e in the ve­
h icle.
- Alway s store damage d wheel, j ack a nd too ls
secure ly in the lu g gage compa rt ment. O th­
erwise, in an a cci den t or sudden maneuve r
they cou ld fly forwar d, cau sing injury to pas­
sen gers in the veh icle.
-

Fuses and bulbs
Fuse ass ignment - interior
ij
::, CX) ID
F ig. 298 Vehicle interior: fuse assignment
No. Equipment
Fl Ad Blue engine components
F2 Seat adjustment
F3 Power top hydraulic pump
F4 Infotainment control panel,
Infotainment
components
FS Gateway
F6 Selector lever (automat ic transm iss ion)
Air conditioning/heating controls, auxiliary
F7 heating, rear window defogger relay, tire pressure monitor
Electromechan ical park ing brake switch,
light switch, rain/light sensor, anti-theft
F8 alarm system,
diagnostic connector, roof
module, emergency call system, head light
range control
F9 Steering col umn sw itch module
FlO Infotainment system display
Fll Left vehicle electrica
l system control mod-
ule
F12 Infotainment components
F13 Driver's side safety belt tensioner
F 14 Heat ing/a ir condit ion ing system blower
372
No . Equipment
FlS Electronic
steering column lock
F16 Infotainment components
Fl7 Instrument cluster
Fl8 Rearview camera
Fl9 Convenience access control module
F20 Engine components
F21 Steering column, steering wheel heating
switch module
F23 Panorama glass
roof/power top control
module, power top latch
F24 R
ight vehicle electrical system control
module
F2S Driver
's side front/rear power windows
F26 Seat heating
F27 Interior
lights
F28 Power top control module
F29 Interior lights
F30 Diagnostic connector
F32 Front camera, parking
system, ACC sensor,
lane change assist
F33 Airbag
Hold assist button, interior sound, revers-
F34 i
ng light sw itch, temperature sensor, neck
heating relay coil and socket relay, power
top operation button
Air quality sensor, automatic dimming
F3S rearview
mirror, diagnostic connector, cen-
ter console power supply
F36 Right
headlight (LED, Matrix LED)
F37 Left headlight (LED, Matrix LED)
F38 High-voltage battery
F39 Passenger
's side front/rear power w in-
dows
F40 Sockets
F41 Passenger's sid e safe ty be lt tens ioner
F42 Central locking area
F43 Sound-amplifier
F44 All wheel drive
F47 Rear window wiper
F48 Outer sound actuator