2012 AUDI A3 brakes

226 Tires and wheels
and drive with extra care. Refit the nor­
mal road wheel as soon as safely possi­
ble.
- Never drive faster than the maximum
speed for which the tires on your vehicle
are rated because tires that are driven
faster than their rated speed can fail
suddenly.
- Overloading tires cause heat build-up,
sudden tire failure, including a blowout
and sudden deflation and loss of control.
- Temperature grades apply to tires that are properly inflated and not over or un­
derinflated .
- For technical reasons it is not always
possible to use wheels from other vehi­
cles -in some cases not even wheels
from the same vehicle model.
- If you install wheel trim discs on the ve­
hicle wheels , make sure that the air flow
to the brakes is not blocked. Reduced air­
flow to the brakes can them to overheat,
increasing stopping distances and caus­
ing
a collision.
- Run flat tires may only be used on vehi­ cles that were equipped with them at the
factory. The vehicle must have a chassis designed for run flat tires and a factory­
installed tire pressure monitoring sys­
tem* that indicates a loss of tire pres­
sure . Incorrect use of run flat tires can
lead to vehicle damage or accidents .
Check with an authorized Audi dealer or
tire specialist to see if your vehicle can be
equipped with run flat tires . If run flat
tires are used, they must be installed on
all four wheels. Mixing tire types is not
permitted .
(D Note
-For technical reasons, it is not generally
possible to use the wheel rims from oth­
er vehicles. This can hold true for wheels
of the same vehicle type.
- If the spare ti re is different from the
tires that you have mounted on your ve­
hicle (for example winter tires or wide
profile tires), then use the spare tire for a short period of time only and
drive with
extra care. Replace the flat tire with the
tire matching the others on your vehicle
as soon as possible.
- If you put different wheels and tires on
your vehicle (e .g. winter wheels and
tires), you must be certain that the
wheels and tires are compatible with the
tire pressure monitoring system* . Other ­
wise the system will register a malfunc­
tion and a fault message will be dis­
played. For more information, contact
your authorized Audi dealer.
- Never drive without the valve stem cap .
The valves could get damaged .
@ For the sake of the environment
Dispose of old tires in accordance with the
local requirements.
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- Temperature ABC
Quality grades can be found where applicable
on the tire side wall between tread shoulder
and maximum section width
¢ page 223,
fig. 171 .
For example: Tread wear 200, Traction AA,
Temperature A.
All passenger car tires must conform to Feder­
al Safety Requirements in addition to these
grades .
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course.
For example, a tire graded 150 would wear
one and one half (11/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use, how-
ever, and may depart significantly from the
ll-

244 Fuses and bulbs
Fuse Location, Instrument Panel left
Fuses which can be replaced.
Fig. 191 Cockp it driver 's s ide: fuse pane l layout
Note that the following table is accurate at
the time of going to pr ess and i s subject to
change . In the event of d iscrepancies, the la­
bel on the in side of the cover always take s
pr eceden ce .
The power seats are protected by circuit
break ers,
which automatically reset after a
few seconds after the ove rload has been rem­
ed ied .
Equipment
Manua l head light beam ad­
justment, a utomat ic head­
light beam adjustment, AFS
1 co ntrol m odule, engine
components, light switch
(switch lighting/illumina­
ti on), diagnosis socke t
2
3
4
5
6
8
9
Automatic transmission,
control module for CAN data
transfer (gateway), electro­
mechanical steering, shift
gate automatic transmis­
sion, fuel tank control unit,
engine control unit, brakes
control (A BS), Electronic
Stabili zation Program (ESP) ,
Anti-Slip Regulation (ASR)
Air bag
Air-conditioning (pressure
sensor, air quality sensor), button for Electronic Stabili ­
zation Program (ESP), Anti ­
Slip Regulat ion
(ASR), tire
pressure monitor display, oil
level senso r, back-up ligh t
s w itch, front se at he ati ng ,
p ark ing aid, sea t-occupancy
recognition (on USA vehi ­
cles), garage door opener,
automa tic mirror dimming,
headlight assistant, heated
windshield washer nozzles, air conditioning (control
module)
AFS headlights ( left si de)
AFS headlights (right side) Instr ument cluster
Navigation system, radio
system
1 0 digital
radio, cell phone, TV
equipment
11 Automatic mirror dimming,
headlight assistant
12 Central lock ing (front doors)
Central locking ( rear doors)
Amps
10
10
5
5
5
5
5
15
7 ,5
10
10
10

Index 265 ____________________________ ...:.:..:.=.:::.::.:
AUTO
Climate controls .. ..... ... .. .. .. .... 81
Sw itching on .... ........ ... .. .. .. .. 81
When should I use AUTO? ............ 81
Automatic air recircu lation ............ 82
Automatic belt retractor . . . . . . . . . . . . . 116
Automatic car wash
refer to Washing .................. 179
Automatic t ransmission . . . . . . . . . . . . . . . 96
D riving Notes . . . . . . . . . . . . . . . . . . . . . . 98
Emergency program ... ... .. .. .. .. . 10 1
Emergency release . . . . . . . . . . . . . . . . . 102
Ignition key safety lock . . . . . . . . . . . . . . 89
Kick-down .. ... .......... .. .. .. ... 101
Launch Contro l Program ..... .. .. .. . 101
Selector lever lock .................. 97
Selector lever pos it ions . . . . . . . . . . . . . . 96
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . 100
Tiptroni c con trols on the steering
wheel . .. .. .... ............. .. .. . 100
Automatic Transmission
Automatic T ransm ission ....... .. .. .. 99
Auto Safety Hotline . . . . . . . . . . . . . . . . . 111
Average fue l m ileage ................. 26
Average speed . . . . . . . . . . . . . . . . . . . . . . . 26
Avoid damaging the vehicle . ... .. .. .. . 17 1
B
Battery . .. .. ................. .. .. . 20 7
charging ... .. .... .... ... .. .. .. ... 209
Disconnecting and connecting . ... .. . 207
Important warn ings when working on
the battery . ............. .... .. ... 208
Low . .... .. .. .. ........... ....... 167
Replacing the batte ry ...... ... .. .. . 210
State of charge .................... 167
W inte r operation .......... ...... .. 207
Wo rking on t he battery ............. 208
Battery voltage . . . . . . . . . . . . . . . . . . . . . . 20
B efore driving . .. .. ..... ... .. .. .. ... 103
B lended gasoline . .......... ...... .. 189
Body cavity sealing .................. 183
B ooste r seats .. ........... .. .. .. ... 1 51
Brake assistant ............. ...... .. 165
Brake booster .... .. .... ... .. .. .. ... 164 Brake fluid
Changing the bra ke fluid ..... ... .. .. 206
Check ing the brake fluid level . ... .. .. 206
Reservoir . .. .. .. ................. 206
What is the correct brake fluid level? .. 206
What should I do if the brake fluid warn-
ing light comes on? .. .. .. ..... ... .. 206
Brake pads . ... .. .. .. .. .. ...... ... .. 169
B rake system ....................... 206
An ti-l ock b rake syste m . . . . . . . . . . . . . . 18
B rake fluid .. .... .. . .. .. ..... ... .. 206
Brake fluid specifications for refill and re-
placement .. .... ... .. .. ..... ... .. 206
Brake light defective ................ 21
General information ............... 163
How does moistu re or road salt affect the
brakes? .......... ................ 163
Malfunction ..... .. ................ 15
Wa rning/ind icator lights ........ .. .. . 15
Wor n bra ke pads s ymbol ............ . 19
Break-in per iod .. .. .... ....... ...... 169
B rake pads ....................... 169
T ires 169
Bul bs ............................. 246
C
California Proposition 65 Warning ... .. 195
Battery specific . ... .. ...... ... .. .. 209
Capaci ties ......................... 257
Car care . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Plastic and vinyl .. .. . .. .. ..... ... .. 181
Care of exterior .. ...... ............. 178
Cargo a rea
refer to L oading the l uggage compa rt-
ment ... .. .. .. .... . ... ...... ... .. 109
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Cata lytic converter .............. .... 170
Center armres t . . . . . . . . . . . . . . . . . . . . . . 66
Cent igrade
Switching between Centig rade and Fah-
renhe it . ..... ...... ....... ........ 83
Central locking
panoramic sliding sunroof closing .. .. . 46
Certif ication .. .... ... .. .. ..... ... .. 262
Chang ing a flat t ire ... . .. .. ..... ... .. 236
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