2020 AUDI A3 brake sensor

8V2012721BK
Care and cleaning


ZA\ WARNING
—To reduce the risk of accidents, only wash
the vehicle when the ignition is off and fol-
low the instructions from the car wash oper-
ator.
—To reduce the risk of cuts, protect yourself
from sharp metal components when wash-
ing the underbody or the inside of the wheel
housings.
— After washing the vehicle, the braking effect
may be delayed due to moisture on the
brake rotors or ice in the winter. This in-
creases the risk of an accident. The brakes
must be dried with a few careful brake appli-
cations.

() Note
— If you wash the vehicle in an automatic car
wash, you must fold the exterior mirrors in
to reduce the risk of damage to the mirrors.
Power folding exterior mirrors* must only
be folded in and out using the power folding
function.
—To reduce the risk of paint damage, do not
wash the vehicle in direct sunlight.
—To reduce the risk of damage, do not wash
decorative decals* with a pressure washer.
—To reduce the risk of damage, do not wash
the power top* with a pressure washer.
—To reduce the risk of damage to the surface,
do not use insect removing sponges, kitchen
sponges, or similar items.
— When washing matte finish painted vehicle
components:
— To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax.
— Never use protective wax. It can destroy
the matte finish effect.
— Do not place any stickers or magnetic
signs on vehicle components painted with
matte finish paint. The paint could be
damaged when the stickers or magnets
are removed.
(@) For the sake of the environment
Only wash the vehicle in facilities specially de-
signed for that purpose. This will reduce the
risk of dirty water contaminated with oil from
entering the sewer system.
Cleaning and care information
When cleaning and caring for individual vehicle
components, refer to the following tables. The
information contained there is simply recommen-
dations. For questions or for components that
Exterior cleaning
are not listed, consult an authorized Audi dealer
or authorized Audi Service Facility. Also follow
the information found in > A.





Component Situation Solution
Windshield wiper | Deposits Soft cloth with glass cleaner > page 50
blades
Headlights/ Deposits Soft sponge with a mild soap solution®
Tail lights
Sensors/ Deposits Sensors: soft cloth with solvent-free cleaning solution
Camera lenses Camera lenses: soft cloth with alcohol-free cleaning solu-
tion
Snow/ice Hand brush/solvent-free de-icing spray
Wheels Road salt Water
Brake dust Acid-free special cleaning solution >

343

8V2012721BK
Fuses and bulbs

Fuse assignment - Interior

No. Equipment



RAZ-0793,
PO ee
15°16°17-18 19 20 21
PZ ply lip y ips}
ei Hes ole” So}
32°33 34 35 36 37
F15
Electronic steering column lock, conven-
ience access control module

F16 TV tuner, telephone antenna

F17 Instrument cluster

F18 Rearview camera

F1I9 Vehicle positioning

F20
Engine components, AdBlue, charging sys-
tem

F221
Steering column, steering wheel heating
switch module

F24
Right vehicle electrical system control
module

F25 Driver's side front/rear power windows

F26 Seat heating

F27 Vehicle electrical system control module

F28 Power top control module


Fig. 281 Vehicle interior: fuse assignment
F29
Vehicle electrical system control module,
interior lighting


No. Equipment
F30 Diagnostic connector


FL Engine components, AdBlue

F2 Seat adjustment
F32
Front camera, parking system, ACC sensor,
lane change assist


F4
Infotainment control panel, Infotainment
components
F33 Airbag


FS Gateway

Fo
Selector lever (automatic transmission),
steering lock
F34
Hold assist button, interior sound, back-up
light switch, temperature sensor, neck
heating and sockets, power top operation
button


Air conditioning/heating controls, auxiliary F35
Air quality sensor, automatic dimming
rearview mirror, diagnostic connector, cen-












F7 |heating, rear window defogger, tire pres- ter console power supply
sure monitor F36 | Right headlight (LED, Matrix LED)
Electromechanical parking brake switch, F37 | Left headlight (LED, Matrix LED)
light switch, rain/light sensor, anti-theft F38 | High-voltage battery
ae ene eee dent F39 | Passenger's side front/rear power windows
range control F40 | Cigarette lighter, sockets
F9 |Steering column electronics F41 | Passenger's side safety belt tensioner
F10 | Infotainment system display F42 | Central locking area
Tl Left vehicle electrical system control mod- F44 al ee
ule, airbag FAS | Driver's side seat adjustment
F12 | Infotainment components F47 | Rear window wiper
F13 | Driver's side safety belt tensioner, airbag F48 | Outer sound actuator
F14 | Heating and A/C system blower control
361

Fuses and bulbs


No. | Equipment No. | Equipment

Clutch sensor, engine start, high-voltage
F49 3
battery, power electronics

F52 F53 Level control system control module


Rear window defogger

The power seats* are protected via circuit break-
ers that automatically switch on after a few sec-
onds after the overload has been reduced.
Fuse assignment - Engine compartment

RAZ-0794)
1 0
&
F:}
vi
6
5
4
5}


Fig. 282 Engine compartment: fuse assignment


No. | Equipment
F3 | Engine control module
FA Engine components, engine cooling, aux-
iliary heater, exhaust treatment

Engine components, fuel tank system
(diesel), CNG cut-off valve
Brake light switch
E5

Fo

Engine components, water pumps, tank
F7 ; . ee cae
system (gasoline engine), electrification

F8
F9
Heat oxygen sensor

Engine components, exhaust door, glow
time control module

F10 | Fuel control module, fuel pump

362
F13 | Transmission fluid pump

F15 |Horn

Power and control electronics, engine
components, ignition coil, options mod-
ule
F1l6

Electronic Stabilization Control (ESC), en-
F17
gine control module

Terminal 30 (voltage reference), battery
F18
es
monitoring

FIO F20
F21
Windshield wipers

Anti-theft alarm system

Automatic transmission

Terminal 50 diagnosis, engine control
F22
module

F23 | Engine start

Vacuum pump, water pump, high pres-
F31. 2
sure pump, fuel injectors

F33
F34
F35
F36
F37
Brake pressure reservoir, recuperation

Brake booster

Climate control system

Left front headlamp

Parking heater


F38 | Right front headlamp

Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you.
It is becoming increasingly more and more diffi-
cult to replace vehicle light bulbs since in many
cases, other parts of the car must first be re-
moved before you are able to get to the bulb.
This applies especially to the light bulbs in the
front of your car which you can only reach
through the engine compartment.
Sheet metal and bulb holders can have sharp
edges that can cause serious cuts, parts must be
correctly taken apart and then properly put back
together to help prevent breakage of parts and >

Index

Audio player
Bluetooth audio player................ 214
Wi-Fi audio player...............00005 214
AUGIOTISCK san 4 2 wees 2 a wea.8 2 Aas a ¢ 222
Audi phone box......... 0. ce eee eee eee 171
Audi presense......... 0.00. c eee eee 125
MESSAGES saree 5 x sens 5 x seme 5 e ewe = 124,128
AUGISIGGIASSISE sivas ¢ < wacom 3 § suas 4 § Sac & 131
Cleaning the sensors...............004 343
MGSSAGES caszass » « annsoice & 0: cones @ 0 ornare « 6 cnene 135
Rear cross-traffic assist................ 134
Audi smartphone interface.......... 228, 233
Audi virtual cockpit
refer to Instrument cluster.............. 14
AUTO
Automatic headlights .................. 43
Climate control system ...........-.000. 66
Auto Lock (central locking system) ......... 25
Automatic belt retractor... .......0...05 248
Automatic transmission............-...0- 75
Automatic wipe/wash system............. 49
Auxiliary climate control................. 68
AUX input... 06. eee eee 217
Average consumption................005 22
Average speed... 1... cece eee eee 22
B
BACKIBUTEOM « seseins Bag hOoks®. « csssiecs «a seams ve connate vm eevee © # sees 60
Balance:(SOund) aii os weve av owe va neues « 234
Band
refer to Frequency band............... 206
Bassi(SOunG) «axes wo swivius 0 a awaweie w stamens oY nae 234
Battery, scorn so sccm 6 2 serene © x aor 6 MEER oo 315
Charge level display.................00. 14
CHANGING scx ¢ < sacs x § anes & ¢ Same Fk eR 316
High-voltage battery...............008. 96
Winter operation.............2.00 eee 315
Battery (vehicle)
refer to High-voltage battery............ 96
Before driving............-.0 eee eens 237
Belt temsiomensten «+ serene a axnuoe a 0 acme 0 0 ae 252
Better route (navigation)................ 205
BOWED. i seiiss a somunse a & anosans & % wwe Ho omemaun & 8 66
382

Bluetooth
Audio player... ..... cece eee eee eee 214
Connecting acell phone............... 169
SOEIAGS wines sx sesame vo arene cee a a comes 233
BOOStiis «een oo eer oo sore os ee ©» eee Y 23
Boosterséats.. « « can 2 ¢ ees os eeu ee ees 287
BOOSETUNGtION = wee < 2 seme 2 2 eee 2 e sees 76
Boost pressure indicator................. 23
Brake fluid
Checking brake fluid level
BRAKES cyecy: 2 aqme 2 ¢ atone go tem ye eee ye
Brake assist
Brake fluid
Emergency braking function
HOE ssicoes + a avo 3 orem oa Ta oe Ra BTR
New brake pads
Break-in security feature................. 30
Breaking in
New brake pads........... 00. c ee eee eee 85
NEW TIRES sc « = cows « 2 cares & eee ¢ v een 326
Newevelicles. « css: sv wns se wesc a 2 amenes 3 6 78
Browser
refer to Media center...............00. 220
BUDS: a i cconine 2 os cesnors & awanawe so avai 8 ans He 362
Buttons
Control panel (MMI)................-. 146
Multifunction steering wheel......... 17,20
Programming (multifunction steering
wheel)... 0.0.0... cece eee eee eee eens 19
Switching the Infotainment system display
ON/OFF iccen xo meron oo ee ae Se oo poe © 8 147
Cable (USB adapter/AUX connector cable).. 217
California Proposition 65 Warning........ 305
Battery specitt@inss + sccmss ux suas a 6 onawents x a 315
Galblists s secs 2 2 semen 2 waew v anor ee eR 173
Calloptions ess s seca ss pen & x dees 5 eee 180
Capacities
Fureltanke: « 2 wc 2s wise + meni os mie a oo 380
Washer fluid reservoir...............-5 380
Car key... cece eee eee eee 26
Care washes x sass i a seesiice 6 0 arovacs 6 w waneane 0 ane 342
Catalytic Converters « sesci ss wave a 8 eres 6 6 303
CD drive (media drives)................. 212