2015 AUDI A3 tire pressure

Equipment
Vehicle tool kit
Applies to vehicles: with vehicle tool kit
Fig . 163 Luggage compartment: cargo floor cover
folded upward
The vehicle tool kit is located in the luggage
compartment under the ca rgo floo r cover
¢ fig. 163.
Cargo floor cover
.. Hang the plast ic hook on the luggage com­
partment weather str ip -arrow-
c:> fig. 163.
Spare tire
General information
Applies to vehicles: with space-sav ing spa re tire (compact
spare t ire)
F ig. 164 Luggage compartment: cargo floor cove r
fo lded upward
F ig. 165 Compact spare tire
What do I d o now ? 24 7
The spare tire c=;,fig. 165 is intended for short ­
term use only. Have the damaged tire checked
and replaced if necessary by an authorized
Audi dealer or qualified repair facility as soon
as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire
has been designed specifically for your type of
vehicle. Do not replace it with the spare tire
from another type of vehicle .
Removing the spar e tir e
.. Lift the cargo floor by the plastic handle.
.. Hang the plastic hook on the luggage com­
partment weather strip@¢
fig. 164 .
.. Remove the subwoofer*, if necessary
c=;, page248 .
.. Tu rn the large screw counter-clockwise .
.. Remove the spare tir e.
Snow chains
For technical reasons, the use of snow cha ins
on the compact spare tire is not permitted.
If you have to drive with snow chains and a
front tire fails, mount the spare wheel in place
of a rear tire. Install the snow chains on the
rear tire that you removed, and install that in
place of the front tire that fa iled .
A WARNING
-After insta lling a spare tir e, the tire pres­
sure must be chec ked as soo n as possi­
b le. The t ire p re ssu re is availab le on
¢page 229, fig.157
- If the spa re tire is more t han 6 years old,
use it only in an emergen cy and wi th ex­
treme caution and careful driv ing.
- T he spare ti re is in tended only fo r tem­
pora ry and short-te rm use .
It should be
rep laced as soon as possible wi th the
normal whee l and tire.
- After mo unting t he com pact spare t ire,
the t ire pressure mus t be checked as
soon as possible. T he tire pressure of the
compact spare tire must be 4.2 bar; oth­
erw ise, you risk having an acc ident.

-Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the whee l being changed. When one
front whee l is lifted off the gro und, plac­
ing the A utomat ic Transm iss ion in P
(Park) wi ll
not prevent t he vehi cle from
moving .
- Before you change a wheel, be su re the
ground is leve l and fi rm.
If necessary,
use a st urdy board under the jack.
- Always store the vehicle tool ki t, the jack
and the replaced ti re in the l uggage com­
partment¢
page 12 7 .
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly that order.
1. Remove the d ec orative wheel cov er* . For
more deta ils see also
c:>page 249, Deco ­
rative wheel covers
or ¢ page 2 50,
Wheels with wheel bolt caps.
2. Loosen the wheel bolt s c:> page 250.
3. Locate the proper mount ing point for the
jack and align the jack below that point
<=> page 251.
4. Raise the car w ith the jack c:> page 251.
5. Remove the wheel with the flat tire and
then install
the spare ¢ page 252 .
6. Tighten all wheel bo lts light ly.
7 .
Low er the ve hicle with the jack.
8. Use the wheel bolt wrenc h and
firmly
tighten all whee l bolts c:> page 250.
9. Replace the decorative wheel cov er*.
A WARNING
Always read and follow all WARNINGS and
information
c:> .&. in Raising the vehicle on
page251
and ¢page 253.
What do I d o now ? 249
After changing a wheel
A wheel change is not complete without the
doing the following.
.,. Always store the vehicle tool kit, the jack*
and the replaced tire in the luggage com­
partment
c:> page 127.
.,. Check the tir e pr essure on the spare whee l
immed iate ly afte r mounting i t.
.,. As soon as poss ib le, have the
tight ening
torque s
on all wheel bolts checked w ith a
torque wrench . The correct tighten ing tor­
que is 90 ft lb (120 Nm).
.,. Have the flat tire
replaced as soon as possi­
ble.
@ Tips
- If you notice that the wheel bo lts a re
corroded and difficult to turn while
chang ing a tire, they should be replaced
before you c heck the tightening torque.
- Drive at reduced speed until you have the tightening torques checked.
- After changing a whee l, the ti re press ure
in all four tires must be checked/correct­
ed and the tire pressure monitoring indi­
cator must be stored in the M MI
c:>page245.
Decorative wheel covers
App lies to veh icles: w ith decorat ive w hee l cove rs
The decorative wheel covers must be removed
first to access the wheel bolts.
Fi g. 167 Chang ing a whee l: Removing th e w hee l cover
Removing
.,. Insert the hook (provided with the vehicle
t oo l kit) in the ho le in the whee l hub cover .
i,,.

(D Note
When removing or installing the wheel,
the rim could hit the bra ke rotor and dam­
age the rotor . W ork carefully and have a
second person help you.
N ever use the hexa gonal s ocket in the ha n­
d le of the screwdriver to loosen or t ighten
the wheel bolts .
- Pull the reversib le blade from the screw­
drive r before yo u use the hexagonal
socket in t he handle to t urn the whee l
bo lts .
- When mounting tires with
unid irectional
tread design
make s ure the tread pat­
te rn is poi nte d the r ight way
c:> pag e253 .
- The w heel bolts should be clea n and easy
to tu rn . Ch eck for dirt and corros ion on
the mat ing su rfaces of both the whee l
a nd th e hu b. Remove a ll dir t fro m these
s ur fa ces before remo unting the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern poin ted in
t he right direction.
Using a spare tire with a tread pattern
intended for use in a specific direction
When using a sp are tire w ith a tr ead p atte rn
i ntended fo r u se in a specific direc tion, p lease
note t he following:
- T he di rection of rotation is ma rked by an a r­
r ow on the side o f the tire.
- If th e spare t i re has to be installed in the in­
c orrec t direction, use the spa re tire only
tem por ari ly si nce the t ire will no t be able to
ac hieve its op timum perfo rmance character­
ist ics with rega rd to aquaplani ng, noise and
wea r.
- We recommend that you pay particular at ­
tent io n to this fact du ring wet weat he r and
that you adjust your speed to matc h road
condit ions .
What do I do now? 253
-Replace the flat t ire with a new one and
have it installed on your vehicle as soon as
possible to restore the han dling advantages
of a un idirectional tire.
Notes on wheel changing
Please read the i nfo rmation c:> page 236, New
tires and replacing tires and wh eels
if you a re
go ing to use a spare tire wh ich is different
from the ti res on you r vehicle.
After you cha nge a tire :
-Check the tire pressure on the spare imme­
diately after installation .
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as
possible by your authorized Audi dealer o r
a qualified service station.
- With steel and alloy wheel r ims, the wheel
bolts are correctly tightened at a torque of
90 ft lb (120 Nm ).
- If you notice that the wheel bolts are cor­
roded and diff icult to turn while changing
a tire, they should be replaced before you
check the tightening torque.
- Replace the flat tire w ith a new one and
have it installed on your vehicle as soon as
possible. Remount the whee l cover.
Until then , dr ive with e xtra care and at re­
duced speeds.
A WARNING
-
- I f you are going to e quip your ve hicle
wit h tires o r rims which differ from those
which were fac to ry inst alled, t hen be
s ure to read t he informa tion
c:> p age 2 36,
New tire s and repla cing tires a nd
wheels .
-Always make s ure th e d am age d wheel o r
eve n a fla t tire an d the jack an d too l ki t
are p rope rly secu red in the luggage com ­
pa rtment an d are not loose in the pas ­
senger compartment .
- In an accident or sudden maneuver they
co uld f ly forwa rd, inj uring a nyone in the
veh icle.
•
•
•

274 Index
Centra l locking .... ..... ... .. .. .... .. 31
Ce ntra l locking sw itch ... .. .. ... ... .. 35
Conven ience key . . . . . . . . . . . . . . . . . . . . 34
Emergency locking ........ .. .. .... .. 37
Folding the exterior mirrors .. .. .... .. 36
Luggage compartment lid ...... .. .... 37
Panorama sunroof .. .... .. .. .. .. .. .. 39
Power windows . . . . . . . . . . . . . . . . . . . . 39
Remote control key ..... .. .. .. .. .. .. 33
Safety cen tral lock ing . . . . . . . . . . . . . . . 3 7
Setting . ... .. . .. ..... ... .. .. .... .. 36
Certification . . . . . . . . . . . . . . . . . . . . . . . 2 7 1
Changing a wheel .. ..... ... .. .. .... . 248
C hanging e ng ine o il ...... .. .. .. .. .. . 216
Checking Tire pressure .............. ... .. ... 231
C hild restraints
Danger of using ch ild restraints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . . 142
Where can I get addit ional information
about child restra ints and their use? .. 184
C hild restraint system anchors ....... . 180
C hil d safety ... ............ .. .. .. .. . 166
Conve rtible locking retrac to r .. .. .. .. . 177
I mpo rtan t safety ins tru ctions for using
chi ld safety seats . ..... ... .. .. .... . 170
Important things to know when driving
with chi ldren . ........... .. .. .... . 166
Tether anchors ........... .. .. .. .. . 183
Tether straps .............. .. .... . 183
Chil d safety lock
Power windows . . . . . . . . . . . . . . . . . . . . 38
C hi ld safety loc k (mechanical)
Fr ont doors . . . . . . . . . . . . . . . . . . . . . . . . 38
Ch ild safety sea ts . ...... ... .... .. .. . 172
Booster seats ............. ... .. ... 175
Conve rtible ch ild seats .. .. .. .. .. .. . 173
Conve rtible locking retracto r .. .. .. .. . 177
H ow do I proper ly in stall a child safety
seat in my vehicle? ...... .. .. .. .. .. . 170
I nfant seats . .. .. ..... ... .. .. .... . 17 2
I nstalling . .. .. .. ..... ... .. .. .... . 17 7
Instal ling a child restraint using the
LATCH system .............. .. .... . 182
LATC H system ............ .. .. .... . 182
Lower anchorages ......... ... .. .. . 181
Mount ing and releasing the anchorage
hook .. .. .. ... .... ...... .. .. .. .. . 182 Safety instr
uctions . . . . . . . . . . . . . . . . . 170
Un used safety be lts on the rear seat . . 172
Cleaning ... .... .. ............. .... 201
Cleaning/removing ice from windows ... 203
Cleaning carbon parts . . . . . . . . . . 203, 204
Cleaning r ims . .. .. ..... ........... . 202
Cleaning seat covers . .. .. ..... ... .. .. 204
Cl imate control system (automa tic)
Adjus ting air ven ts . . . . . . . . . . . . . . 67, 68
Air dis trib ution, air vents ..... ... .. .. . 67
Audi drive select . .... .. ..... .... . .. 102
AUTO (climate control system) . . . . . . . . 67
B lower ... .... .. .. ........... .... . 67
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Defrost ing the windshie ld .... .... ... . 67
Key recognition . . . . . . . . . . . . . . . . . . . . 66
Rea r window defogger . . . . . . . . . . . . . . . 68
Rec ircu lation mode ............ .... . 67
Setting the tempe rature ........ .. .. . 67
synchronizing . ... ... .. ..... ... .. .. . 67
Cl imate control system (manual)
Adjusting air vents . . . . . . . . . . . . . . 65, 68
Adjust ing the temperature . . . . . . . . . . . 65
Air distrib ution, air vents ........ .. .. . 65
B lower ... .... ................... . 65
Defrosting windows .... ..... ... .. .. . 65
Key recognition . . . . . . . . . . . . . . . . . . . . 65
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 65
Rear window defogger . . . . . . . . . . . . . . . 68
Recirculation mode ............ .... . 66
Clock . ... .. .... .. .. ... ..... ... .. .. . 10
Closing Hood . .... .... .. ............. .... 211
Pano rama sunroof ............. .... . 40
Windows . .. .. .. .. ........... .... . 38
Clos ing/open ing
by remote control ... .. .. ... ..... .. . 33
with the centra l locking switch . .. .. .. . 35
with the conven ien ce key . . . . . . . . . . . . . 34
wi th the door lo ck ... .......... .. .. . 35
Cockpit (Overvi ew illustration) . . . . . . . . . . . 8
Co ld tire inflation pressure ..... ... .. .. 229
Coming home . .. .. ... .......... .. .. . 44
Compartments .. .. ............. ..... 57
Compass in the m irror . ... .... ... .. .. . 50
Compliance ... .. .. .. ... .. ... ..... .. 271
Consumer Information . . . . . . . . . . 129, 268

28 0 Index
------------------------------------
Parking aid
Cleaning s ensors/camera lenses ... .. . 202
Parking brake . . . . . . . . . . . . . . . . . . . . . . . 76
E mergency braking function .. .. .. .... 78
I ndicator light ........... .. .. .... .. 19
I ndicator lights . . . . . . . . . . . . . . . . . . . . 76
Parking ..... .. .. ..... ... .. .. .... .. 77
Power failure . . . . . . . . . . . . . . . . . . . . . . 76
Releasing and setting ..... .. .. .. .. . . 76
Starting from a s top ...... .. .. .. .. .. 77
also refer to Park ing brake ..... .. .. .. 76
Parking light .... .. ..... ... .. .. .... .. 42
Park ing system
Adjusti ng the disp lay/wa rn ing tone .. . 120
C leaning the rearview came ra . .. .... . 117
M alfunct ion . .. . ...... ... .. .. .... . 120
Park ing system p lus .. ... .. .. .. .. .. . 1 15
Periphe ra l disp lay ..... ... .. .. .... . 115
Rear parking system ...... .... .... . 115
Rearview camera ......... .. .. .. .. . 116
also refer to Park ing systems . . . 115, 116
Parking systems . .. ..... ... .. .. .... . 114
Park ing (automatic transmission) . 107, 108
Parts rep lacement ......... .. .. .... . 270
Pass -t h ro ugh . . . . . . . . . . . . . . . . . . . . . . . . 63
PASSENGER AIR BAG OFF l ight . .. .. ... 153
Pedals . ..... ... .. ..... ... .. .. .... . 126
P eriphe ral disp lay .......... .. .. .... . 115
P hys ica l pr inciples of a frontal coll is io n . 132
P lastic parts cleaning .. ... .. .. .. .. ... 203
Polishing .. .. ................ ... .. . 203
Pollen filter
refer to Po llutant filter . . . . . . . . . . . . . . 64
P oll utant fi lter .. .. ..... ... .. .. .... .. 64
Post-co llision brake ass ist ... .. .. .. .. . 186
Power seat adjustment . . . . . . . . . . . . . . . . . . . . 54
W indows ................. .. .... .. 38
P owe r windows .. . ...... ... .. .. .... .. 38
Conven ience opening/closing . . . . . . . . . 39
Malfunct ion . ... .. .... ... .. .. .. .. .. 40
Pr egnant women
Specia l cons iderations when weari ng a
safety be lt .. .. .. ..... ... .. .. .... . 136
Pre sense Driver messages . . . . . . . . . . . . . . . . 88, 9 2 Genera
l Info rmation . .. ..... .... . .. . 82
Settings . ..... .. .. ... ..... ... .. .. . 92
Pressure (tires) .. .. ............. .... 244
Proper occupant seating positions . .... 122
Proper safety belt posi tion ..... ... .. .. 135
Proper seating posit ion
Front passenger .. ..... ........... . 123
Occ upants . .... .. ............. .... 122
Re ar passenge rs .. ... .......... .. .. 1 24
Protecting .. ... ... .. .............. . 203
Protection mat
refer to Revers ible mat . ..... ... .. .. . 62
Q
Question
What happens to unbelted occupants? 132
R
Radiator fan
Radio clock 218
refer to C
lock . . . . . . . . . . . . . . . . . . . . . . 10
Rain/ light sensor
Headlights .. .. .. ............. .. .. . 42
Indicator light ... ... .. .. ... ..... .. . 25
Intermittent (w indshield w ipers) ..... . 46
Switching on and
off ........ ...... .. 46
Range (tank contents) ............. .. . 27
Re ar armrest .. .. .. ... .......... .. .. . 55
Rear lid
refer to Luggage compartment lid .. .. . 37
Rear light
Indicator light . .. ... .......... .. .. . 24
Rea rv iew camera
refer to Parking systems
115,116
Rea rv iew mi rror
refer to Mi rror . .. ............. .... . 49
Rearv iew mirror dimming ........ .... . 49
Rea r window de fogger . . . . . . . . . . . . . . . . 68
Recirc ulat ion mode
automatic cont ro l system ....... .. .. . 67
ma nua l cl imate co ntrol system ... .. .. . 66
Reduc ing fuel consumption
Efficiency program . . . . . . . . . . . . . . . . . . 28
Ref ueling ... .... .. .. .... . ..... ... .. 207
Fuel leve l ind icator ... .......... .. .. . 11

Tether anchors ..................... 183
Tether strap . .................. .... 183
T extiles cleaning ........... .... .. .. . 204
The first 1,000 miles (1 ,500 km) and after-
wards ..... .. .. .............. ... ... 193
Tie-downs . . . . . . . . . . . . . . . . . . . . . 62, 128
Tips for the environment Saving fuel . . . . . . . . . . . . . . . . . . . . . . . . 60
tiptronic (automatic transmission) .. .. . 110
Tire pressure ............... ... ... .. 231
Tire pressure monitoring system . ... .. . 243
Tires .. .... .. .. ............. .. .. ... 225
Service l ife . ............. .... .. .. . 235
Speed rating letter code ............ 23 7
Tire manufacturing date ............ 237
Tire pressure monitoring system . ... . 244
Tire specifications ........ .... .. .. . 23
7
Tread depth .. ........... .. .. .. .. . 235
Uniform tire quality grading .. .. .. .. . 239
Winter tires ................ .. .... 240
Tires and vehicle load limits ..... ... .. . 233
Tires and wheels Checking tire pressure ..... .. .. .. .. . 231
Cold tire inflation pressure .......... 229
Dimensions ................. ... .. . 236
General notes ..................... 225
Glossary of tire and loading terminolo-
gy .. .... .. ................. .. ... 226
Low aspect ratio tires ...... .. .. .. .. . 242
New tires and wheels ......... .... .. 236
Replacing .. .. ........ ... .. .. .. .. . 23 7
Snow chains ................ .. .... 241
Tires and vehicle load limits .. .. .. .. . 233
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . 242
Winter tires ................ ... .. . 240
Tire service life ......... .... ... ... .. 235
Tool kit ..... .. .............. ..... . 247
Torn or frayed safety belts ... .. .. .. .. . 134
Towing Tow truck procedures ........... .... 261
Towing loop . ... .............. ... ... 262
TPMS (tire pressure monitor ing system) . 244
Trailer towing ............. .... .. .. . 198
Operating instructions ..... .. .. .. .. . 198
Technical requirements . . . . . . . . 198, 199
Trailer towing tips ........... .... .. 200
Index 283
Transmission malfunction (indicator
light) ....... ... .... ............... 111
T ransport Canada .. ................. 129
Tread Wear Indicator (TWI) ....... .... 235
Trunk
refer to Luggage compartment ........ 60
Turn signals . .. .. .... .. ........ ...... 44
Ind icator light . .. ................. . 25
u
Unfastening safety belts 136
Unidirectional tires .............. .... 225
Uniform tire quality grading ...... .. .. 239
Unlocking/locking by remote control . . . . . . . . . . . . . . . . . . 33
with the centra l locking switch ........ 35
with the conven ience key ........ .. .. . 34
with the door lock .... ............. . 35
V
Vanity mirror ...... .. ................ 46
Vehicle Dimensions .. .. .. .. ............... 266
out of service .. .. .. . .. .... ........ 195
Vehicle care ........................ 201
Vehicle identification label .......... .. 265
Vehicle Identification Number (VIN) .. .. 265
Vehicle jack . . . . . . . . . . . . . . . . . . . 247,251
Vehicle key ....... .. ..... ........... 31
Vehicle literature . . . . . . . . . . . . . . . . . . . . . 5
Vehicle tool kit .. .. ................. 247
w
Warning/indicator lights
Malfunction Ind icator Lamp (M IL) .. .. . 23
Warning/Indicator lights Airbag system . . . . . . . . . . . . . . . 152, 153
PASSENGER AIR BAG OFF ........... 153
Warning lights
refer to Indicator lights . . . . . . . . . . . . . . 14
Warranty coverages .. ........... .... 268
Washer fluid level (indicator light) . .. .. . 24
Washer reservoir .................. . 224
Washing matte finish paint ....... .... 201
Wear indicator .. .. ............. .. .. 235
•
•
•

284 Index
Weights .......... ......... ... .... . 265
What happens if you wear your safety belt
too loose? ........................ .
135
What happens to unbelted occupants? .. 132
What impairs driving safety? .......... 122
What should I do after changing a
wheel? .. .... .. .. ...... .... ... .. .. .
232
What should I do after replacing wheels? 232
Wheel bolts
Torque ..... ................ ..... .
242
Wheels ... .. ............ ... .. .. ... 225
A ll wheel drive ......... .... .. .. .. . 190
Checking tire pressure ..... .... .... . 231
cleaning ... ............. .... .. .. . 202
Cold tire inflation pressure .......... 229
General notes ................ .... . 225
Glossary of tire and loading terminolo-
gy .. .. .. ................. .. .. .. .
226
New tires and wheels ...... .... .... . 236
Tires and vehicle load limits .. .... .. . 233
Wheel wrench .............. ... .... . 247
When must a safety belt be rep laced? . .
134
When must the airbag system be inspect-
ed? ..... .. ....................... . 152
When shou ld I ad just the tire pressures?
232
When shou ld I check the tire pressures? . 232
Where are lower anchorages located? ... 181
Where can I find the tire pressu res for my
car? . .. ... .................. ..... .
231
Why safety belts? .......... .. .. .. .. . 132
Windows
cleaning/removing ice
203
W indshield
cleaning ... ................ ..... ..
46
defrosting (automatic climate contro l
system) . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
defrosting (manual climate control sys-
tem) .. .. ................. .. .... ..
65
also refer to Windshield . ........ .. .. 46
Windshield washer system ... ... .. .. .. 46
Reservoir capacity .............. .. . 266
Washer reservoir ......... .... .... . 224
Windshield w ipers
C leaning wiper blades ............. . . 47
Folding up ............... ... .... .. 47
Indicator light . . . . . . . . . . . . . . . . . . . . .
24
Replacing windshield wiper b lades . ... . 47
Switching on and
off ............ ... . 46
Winter operation
Cooling system . .. ............. .. ..
216
Winter tires . .. .. .. .... .... ..... .. .. 240
All -wheel drive ... ..... ..... ... .. .. 240
Winter use
Car washes ................... ....
201
defrosting the windshield (automatic cli­
mate control system) . . . . . . . . . . . . . . . . 67
Removing ice from windows . .. .. .. ..
203
Seat heating . . . . . . . . . . . . . . . . . . . . . . . 68
X
Xenon-lights .. .. .. ... .... ...... .... 258
Xenon headlights . ................. .. 42