wheel AUDI A4 2021 Owner´s Manual

Fuses and bulbs






Fuse panel @) (brown) Fuse panel (© (black)
14 | Fuel injectors, engine control module 11 Left rear door control module, left rear
15 |Ignition coils, heated oxygen sensors power window
16 | Fuel pump 12 | Parking heater
Fuse panel (®) (red) Fuse panel (0) (black)
No. | Equipment No. | Equipment

Anti-theft alarm system

Front seat electronic, seat ventilation,
rearview mirror, rear climate control sys-

































tem control panel, windshield heating, di-
agnostic connection
2 Diagnostic interface, vehicle electrical sys-
tem control module
3 |Sound generator
4 |Clutch position sensor
5S |Engine start, emergency shut-off
6 Diagnostic connection, traffic information
antenna (TMC)
7 |USB input
8 |Garage door opener
9 Audi adaptive cruise control, distance reg-
ulation
11 | Front camera
12 | Right headlight
13 | Left headlight
14 | Transmission fluid cooling
Fuse panel (©) (red)
No. | Equipment
1 {Ignition coils
2 |Climate control system compressor
S |Left headlight
6 |Automatic transmission
7 |Instrument panel
8 | Climate control system blower
9 |Right headlight
10 | Dynamic steering
11 | Engine start



2 | Engine control module
3 Left front seat electronics, lumbar sup-
port, massaging seat
4 | Automatic transmission selector lever
5 |Horn
6 |Parking brake
7 | Diagnostic interface
8 | Roof electronics control module
9 |Emergency call module
10 | Airbag control module
11 Electronic Stabilization Control (ESC), An-
ti-Lock Braking System (ABS)
12 | Diagnostic connection, light/rain sensor
13 | Climate control system
14 | Right front door control module
15 | Climate control system compressor
16 | Brake system pressure reservoir
Fuse panel (©) (black)
No. | Equipment
Front seat heating
2 |Windshield wipers
Left headlight electronics
4 Panoramic glass roof / sliding/tilting sun-
roof
5 |Left front door control module
6 | Sockets
7 Right rear door control module, right rear
power window
All wheel drive control module
9 | Right headlight electronics
10 Windshield washer system/headlight

washer system control module

274

8W1012721BC
Fuses and bulbs

Fuse assignment - Driver's side of the
(ole 4o)ig

Fig. 186 Driver side cockpit: fuse panel with plastic bracket

Fuse panel

No. Equipment

B
Convenience access and start authoriza-
tion control module





Fuse assignment - Left side of the luggage
compartment
GU -

|_8aw-0013]




2 | Audi phone box, USB input
4 |Head-up display
5 |Audi music interface, USB input
6 | Front climate control system control panel eet ofihe uagage compartment: fuse panel
7 |Steering column lock
8 |Center display Fuse panel @) (black)
9 |Instrument cluster No. | Equipment
10 | Volume control 2 |Windshield defroster
11 | Light switch, switch module 3 |Windshield defroster
12 | Steering column electronics 5 |Suspension control
14 | Infotainment system 6 |Automatic transmission
16 Steering column electronics, steering 7 |Rear window defogger
wheel heating 8 |Rear seat heating
9 |Left tail lights

10 Airbag control module

ig
Luggage compartment lid lock, fuel filler
door lock, convenience system control
module

12 Luggage compartment lid

Fuse panel @) (red)

No. Equipment

Electric compressor

Fuse panel (©) (brown)
No. Equipment


Exterior antenna

275

Fuses and bulbs


2 | Audi phone box

Right front seat electronics, lumbar sup-
port, massaging seat
4 |Side assist


6 |Tire pressure monitoring system

Convenience access and start authoriza-
tion control module

8 | Auxiliary heating, tank module

TV tuner, data exchange and telematics
10 control module

11 | Auxiliary battery control module

12 | Garage door opener

13 | Rearview camera, peripheral cameras
14 | Right tail lights
16 | Airbag control module



No. | Equipment

Exhaust treatment
Right trailer hitch light
Trailer hitch
Left trailer hitch light
Trailer hitch socket


WO)
O};N]/
Mm|
Ww

All wheel drive control module, sport dif-
10
ferential


11 | Exhaust treatment

Bulbs
Replacing bulbs
Audi recommends having a bulb replaced by an
authorized Audi dealer or authorized Audi Service
Facility in cases of doubt. These facilities have
the correct tools and replacement parts as well
as the required technical knowledge.
LED lights*
Your vehicle is equipped with maintenance-free
headlights and tail lights. However, if a light bulb
needs to be replaced, please contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty.
276

If you still would like to try replacing the
bulbs in your vehicle yourself, read the warn-
ings regarding working in the engine compart-
ment > A\ in General information on
page 221.

Make sure the covers are fitted correctly on
the headlight and tail light so that no water
will leak in from the outside and the light
function will not be impaired.

Index

Numbers and
Symbols
3-zone deluxe automatic climate control.... 91
A
A/G.cooling MOde:. 6 « vice a 6 assis av arene «ow 91
A/C system refrigerant oil............00. 287
Accelerator pedals ¢ wes 2 naan ox news s crew 99
also refer to Accelerator pedal........... 99
AGCOSSOMIES « sresis as isso 4 o ansnine ao atowen 8 He 283
Active lane assist
refer to Audi active lane assist.......... 141
Adaptive cruise control................. 130
Adaptive dampers...............0.-005 111
Adjusting air distribution (automatic climate
control system) ................0 eee eee 92
Adjusting the brightness................. 55
Adjusting the sound..............-..00- 212
Adjusting the temperature (automatic climate
control system) ......... 0.0.00 cee eee eee 92
Adjusting the volume.............0 eee ee 29
Adjusting the volume (announcements).... 212
Adjusting the welcome sound............ 212
Airbag’system . « sss 5 sees se een se cee ee 71
Alarm system
refer to Anti-theft alarm system.......... 36
Alignment pin (changing the wheel)....... 261
All-weather lights...............-.000005 51
AS@ASON tifeSmman: + » swe se meee s Hee Be 250
All wheel drive
refer toquatto sews s ween ss ween as wens 112
Amazon Alexa integration
Media:playback:. jo sscee oo cise a enero oo 202
Operating...............0..0..0.0000. 27
AMI
refer to Audi music interface........... 202
Android Auto
refer to Audi smartphone interface...... 210
Anti-lock braking system............0005 113
Anti-Slip Regulation.................05. 113
Anti-theft alarm system...........-...04. 36
Apple CarPlay
refer to Audi smartphone interface...... 210
288
ASR
refer to Anti-Slip Regulation............
Audi active lane assist...............005
Cleaning the camera area..............
Audi adaptive cruise control
Cleaning the sensors...............005
Predictive control..............000005
Traffic jam assistwax < » sees ss eeee ss eens
Audi adaptive light..............--..00-.
Audi connect
TEfEFLO CONNEC: « = ewan ss news ss Hea Fs
AUdidrive SeleCt ws s y oem s i ween ya eee 4
Audi music interface..............0000-
Audio files........ 0.00.00 cece eee eee
Safety measures... ...... eee eee e wees
Audi side assist
refer to Side assist............-..000-5
Audi smartphone interface..............
Legal information...................5
Audi virtual cockpit
refer to Instrument cluster..............
AUTO
Automatic climate control system........
Automatic headlights ..................
Auto Lock (central locking) ...............
Automatic climate control system.........
Automatic luggage compartment lid....
Automatic transmission............-...05
Automatic wipe/wash system.............
Average consumption...................
Average speed... 0... ee eee eee eee
B
Bag hooks........ 2.52.
Band
refer to Frequency band...............

Index

ExteriOmmirrorssecs os asco w 6 aeons vo ween 9 we 55
Folding settings............. eee eee eee 34
External voice operation................. 27
F
Factory default settings
Multi Media Interface................. 213
Fast route............ 0.0.0.0. . cee eee 182
Favorites... 0.2.0.0... cee eee eee eee 21
BIW@tOOth): < seca ss ceca s i yews se ees 2s 215
NaViGatiOnices ss sescsus so aves + ware eo nena 183
Telephone ..........0 00 cece eee eee 167
Federal Communications Commission (FCC) . 284
File formats (media drives).............. 207
Filling
Tank capacities.......... eee eee eee 287
For the sake of the environment
Disposing of engine oil................ 226
FOGUING's « « supe ¢ ¢ cause 5s same 7 2 eee a eae 218
LOAKS ice ie x erences = 6 caenene a 6 aueuioe we axons 6 eae 222
Forward gear
refer to Gears... . eee eee eee 97
Free text search
Media... .... eee ee eee eee 206
RadiO sys = ¢ seove + © sees ¢ crews ge pew Es 195
also refer to Intelligent search.......... 182
Freeze protection
Coolant... ... 2... eee eee eee 227
Windshield washer system............. 233
Frequency band..........-....--.000-5 193
also refer to Frequency band........... 193
Front center armrest..............02 0005 66
Front passenger’s seat adjustment
REAR « ieiam co nasi 3 onan + wR Ts HeEEE Be RO 65
Front wiper blades
Changing.......... 00. c eee ee eee eee 59
Cleaning... .. cece eee 59
Fuel... 2. eee eee eee 217
AGGItIVES: = ess = ven e = sees os owen ee xe 218
CUFrFeENE CONSUMPTION ¢ & sesso 6 3 ese ao eee 16
Fueldisplay....... 2... cece eee eee eee 12
GaSOliNGs « sees ss ween oe eee ce een es es 217
Reducing fuel consumption............ 102
Tank capacity...........0 ee eee eee eee 287
292
Fueling
Fuel filler door. ....... 0... cece eee eee 218
Fuel filler door emergency release....... 220
Functions on demand...............4.. 175
Functions that require a license.......... 75S
also refer to Functions on demand....... 175
Fuses
ASSIQNMENKS « & senses o 8 mnmors & & mamens @ & inerer 273
Replacing......... 0. cece eee eee eee 272
G
Garage door opener...........0..000 eee 48
Garment hooks ...... 2... 0c e eee eee eee 83
GaSOUME sscwee a 2 evarnes a a omawwes vx amos ow vase 2 217
Additives... 0.0.0... eee e cece eee eee 218
GasOliNe MIXtURE cnn « : seam ct same & 2 Hew 217
GAWR
refer to Gross Axle Weight Rating (GAWR) . 287
GOSTSics + nayss = = pees = yeu se eeUR GE ROUSE 97
Glossary of tire and loading terminology... 238
Glove compartment.............--000-05 83
Valet parking: « < ews + ¢ sees se news oe ees 48
Gross Axle Weight Rating (GAWR)........ 287
Gross Vehicle Weight Rating (GVWR)...... 287
GVWR
refer to Gross Vehicle Weight
Rating (GVWR) .............0000.0005 287
H
Handstreess «sss x i souness 6 0 annwine «a auaware x 163
Hands Free: Profiles «3 inisa ao inesow a vow & 163
Head-up display
Adjusting. ........... 0c cee eee eee eee 25
Adjusting the brightness................ 55
Operatings « : vem « x ewe 5 ¢ eee g 7 eee oe 25
Headlight range control................0. §1
H@AdLIQtS: ¢ = xcs ¢ < eees x = Resa cB eS ea 51
Gleanings « 2 svc so wes 2 wea ee res ees 256
Headlight range control................ 51
Washer system.........--00 eee eee eee 58
Washer system (filling washer fluid) .... . 233
Head restraints < seus « s ems s + sates =v egops se 67
Heated rear window...........0 eee eee 93
Heated steering wheel..............000.. 93
Heating...........0.. 00.0. cee 90

8W1012721BC

HFP
refer to Hands Free Profile............. 162
High beams
High beam assistant.................4. 52
Highway lights ....... 0... cece eee eee ee ee 51
Hill descent assist..............02-000. 108
Hill descent control............0 eee eee 107
Hill hold assist... 0.0.2... ee ee eee eee 97
Home
refer to Home address...........-000% 187
Home address ....... 0.00.0. c eee eee ee 187
HomeLink
refer to Garage door opener............. 48
Home screen... ... 2. eee e eee eee eee eee 18
HOM... eee eee 6
Hotspot
refer to Wi-Fi...........0. 2.0 e eee eee 176
I
Idle
fefer to Gears ewes ¢ s ewes ce seen cs wees 8: 97
Ignition
Switching onvand Off". wes x y says « ¢ caver « 9 95
Imbalance (wheels) ............000000 0s 244
Immobilizer
refer to Electronic immobilizer........... 37
Indicatorlights » neow ¢ a wes ¢ ewer ws wares ao ee 7
INSpPectionintetWals ¢ ssw < gapen g x paves se ne 233
INStroMment ClUStErs = wasn s x wom » x eowe sy ew 12
Adjusting the layout................00. 13:
Cleaning........ 0... eee eee eee eee 258
ENGin@: code: « = sas ¢ seas ¢ eee ae Heese 215
Failures: «osc 2s mene oe pews se ee ¥ ee 12
On-board computer............00200 eee 16
Operating...............2.. 0.02.0 000 13
Service interval display................ 233
Software information................. 215
Switching tabs..................200005 13
Switching the view............ 00ers 13
Vehicle functions................00000- 16
Version information...............0-5 215
Instruments
Adjusting illumination.................. 55
Integrated Toll Module................. 125
Intelligent search
Navigation’: « s sxe 5 ¢ caw + + seein s o tees = 182
Interior lighting « . esccms ve ewe ve mes vw 54,55
Interior MONitOriNg’s + 2 wesw ce wows s ween a ae 36
Intermittent mode (windshield wipers) ..... 58
International’ travel... seessieivaseveuea Li?
Internet
veferto:connects =» ssw ss wees eo wes 2 oe 173
Internet radio
refer to Online radio.............. 197,198
iPhone
refer to Audi music interface........... 202
J
Jump starting......................00. 268
K
ROY". ccanees i a: sonra i ot samme +o anames o 9 ames @ 33,37
Convenience opening and closing......... 46
Key replacement.........c:eecceeeeees 37
Mechanical key...........0...000 02000 37
PANIC button ....... 2.20... 00 cece eee eee 38
Replacing the battery.................. 39
Unlocking and locking.............e eee 38
Vehicle code... 6.2.2... eee eee eee eee 37
Key user... 2... ee eee ee eee 31
RICK EOWING. « ccenerts «a: eames 0 a ayngen eo acne 9 me 99
L
Lane assist
refer to Audi active lane assist.......... 141
Lane departure warning
refer to Audi active lane assist.......... 141
Laptimer........... 0.000000. 0.0 2000. 124
Evaluating s « saws « & cae & & eee so ees os 125
StANEIINGsis 6 & conse w o owen 7 cummins & 7 aE & > 124
LATCH (securing child safety seats)......... 78
Leather care and cleaning............... 258
Legal information
License subscriptions................. 215
Software information................. 215
Software licenseSicx « s wews ss wee s genes 215
Version information...............000- 21S
License plate: brackets + scies 6 seen 3 6 ser 283
Lifting points (vehicle jack).............. 264
293

Index

Light/rain sensor
Automatic headlights...............00. 51
Intermittent mode (windshield wipers).... 58
CIGHEING': « = sex & = eees & 3 Raw & HeieE 2 F eee 51
EXteriOr’s + cess 2 vem av cen a 2 ee a 2 es 51
TCORIOR ccioe + 0 soniane » : semcace wo wsesure aw ececeat as 54
Listening to music
referto Media................-4- 201, 203
Load... . i.e eee ee 287
E@GAULUSERS ti « sietas oo exansie a « ainsi o x avesiee 8 8 30
Locking and unlocking
By remote control..............-.000-- 38
Using the lock cylinder................. 36
With the convenience key............... 38
Low beam headlights.................00. 51
LTE
refer to Exterior antenna.............. 165
Luggage compartment.................. 83
Cover (power)... ... ce eee eee eee eee 85
Increasing the size................. 85, 86
Passethroughiis « essen s sons a o cos @ sens 6 86
Power SOUrCES .... 1 ee eee eee eee 82
TIG-COWNS sss = ses & z gars se peen st wen ee 87
Valet parking’: « cca es weve ae seme se corre 48
also refer to Luggage compartment...... 83
Luggage compartment lid................ 44
Closing button... ..... 0. cee eee eee eee 4l
General information.................05 40
Mechanically unlocking..............45. 43
Opening and closing................... 41
Opening and closing with foot motion..... 42
Opening from the inside in an emergency... 44
Power opening and closing.............. 41
Luggage compartment net............... 87
Lumbar support...........2.-.000 eee eee 64
M
Maintenance’. » seica i sce ov aveasc vo acanans os 281
Maintenance intervals................-5 233:
Malfunction Indicator Lamp (MIL)........ 220
Manual SHIMING:: « « cows a « cows a x cow a 2 Hew 99
Map
Changing the scale........... 000. seen 184
Display.... 2.0... ee eee eee eee 186
Operating: « asx s x news ¢ o Rew 2 b eRe Fe 185
Setting the destination................ 184
294
MAP
refer to Message Access Profile......... 170
Map preview............0..0 0000000008 184
Map update................02..000 00 189
myAudi app... .. eee c cece eee ee eee 189
ONUNG:: s sexe + 2 wees 2 Ree es Sea Gof Here 189
USBiGONMECEION sxicase s % suncane « © sxenass « © sons 190
Massage function
Front... cece eee eee ees 65
Mechanical key........ 0.0.0 e eee eee eee 37
Media « sisi s ccinene vo anvensa we ot aweseni a aie 201, 203
Supported formats.................-- 207
Media
center.................00000 eee 204
Memory function. ......... 0.0 eee eee eee 71
Menu language
refer to Setting the language........... 212
Menu paths......... 0.0.0... eee eee eee ee 18
Message Access Profile................. 170
MesSagesins « « sows so cavewse 9 a exmnsue wv oss ¥ 6 170
Mitrorcompassy oe sic 3 2 miss oo mar 2 8 aw 61
Mirrors
Adjusting exterior mirrors............... 55
Dimming... 06... cee e eee eee eee 56
Vanity mitror's « wax » ¢ anes 2 y tows © s ewe 57
MMI Navigation plus
refer to Multi Media Interface........... 19
MMI radio
refer
to Multi Media Interface........... 19
MMI Radio plus
refer to Multi Media Interface........... 19
Mobile device
refer to Telephone.............00e000 162
Mobile device reminder signal............ 166
Mountain passes...................00. 107
Mountain roads................0000 eee 107
Multifunction steering wheel
Buttons... 0... 02... cee eee eee 13,29
Operating: « s ws « x eeu sy eee so ewe se 13
Programming buttons...............05- 29
Voice recognition system.............-. 26
Multi Media Interface................... 19
Menus and symbols...............--04- 20
Operating’: « owes 2 wae o 6 wore oo were 17,20
Switching on or off..............02.00. 19
MWC Gpceie 3 5 coveine 6 & cxemens «4 carves ww sagan © & ome 29
MYAUG Es. : aseuore & csesain o cauees oe wrens woo 30,174

8W1012721BC
Index

myAudi navigation................. 181, 184
MYAUI USERS asscver s 6 ease ae enue 2 eee oY oes 30
N
Natural leather care and cleaning......... 258
NaVIGAEION ccs < = cece vo eres se Hees ee oe 181
Betterrouteiis «i ccs + 2 anzens 0 cnwisme «6 cans 190
Calling... 2... eee eee eee eee 184
Changing the scale............0. ee eee 184
alsorrefer'to. Map « sss «= ews + 2 cies owes 185
Navigation database
Version information.............00005 215
Navigation (instrument cluster).......... 187
NHTSA es cases x x wana 4 x mmios oe wimaioe we omc 283
Notification center sci ¢ o ssesce so sae os ese 22
Oo
Octane rating (gasoline)................ 217
QOGOMELET way « ¢ wows & 2 wes 4 bee ee ee 1S
ReSettingien & : acum sv anm © o wties & a samen a 15
Office address
refer to Business address.............. 187
Offroad
refer to Offroad driving................ 108
Offroad
driving.......... 20sec eee eee 108
FEC
DUGEOM) wiccons = 2 exeses we stein «6 ansonoe 9 w noe 91,
Oil
refertoEngineoil.................... 224
On-board computer.............00 0-0 eee 16
On Board Diagnostic System (OBD)... 220,277
Online map
refer to Satellite map................. 188
Online radio...................0.00005 197
also refer to Online radio.......... 197,198
Online roadside assistance.............. 179
Online services
fefer tO CONNEC’: « ees ¢ ¢ eyes ce ew se He 173
Online system update.............00005 213
Online traffic information............... 190
Opening. ....... 6. eee eee cece 33
Automatic luggage compartment lid...... 41
Convenience opening...........-...005- 46
Fuel filler door...........00 eee cece eee 218
HOGG 's scvse © s mame 2 ¢ eR & 2 ERE § ee Ge 222
Luggage compartment lid............... Al
Luggage compartment lid with foot motion . 42
Panoramic glass roof............00 eee ee 47
Sliding/tilting sunroof..............0005 46
Sunshade (roof) « « wcscine ow cence mv owarne wa ow 47
Windows ...... 0... e cece eee eee eee eee 45
Opening and closing
refer to Unlocking and locking........ 33,38
Operating
Head-tip displayins « x aims s aaes = news ex xe 25
Tnstrumenticluster sissies i asians a o asneaine ow soi 13
Multifunction steering wheel............ 13
Multi Media Interface............... 17,20
TeXtINPUBss 2 2 cones ws wramrs x x seen oa ewe a ee 23
Touch display.......... 0... c eee eee eee 17
Voice recognition system............... 26
Optional equipment number............. 286
Options
Médias: = » saes ¢ = eae 9 e ames 5 © ews 3 ee 207
RaGiOiics so awinia 6 7 seanine 6 aa 6 cimRE Yo 8 198
Overview (Cockpit). cs sina ov arenas v6 aries a 6 ose 6
P
PaintiCOd Gis ¢ wees sv ween oe mews ae ees oa 286
Paint damageé:s:. = ¢ sees ss eees y = ewes se eee 257
PANIG BUttOMTs « » snus = 2 ame seme oY 37, 38
PANIC function ..............0 0c eee eens 37
Panoramic glass roof................-04. 47
Convenience opening and closing......... 46
Emergency closing: . iwc. scenes cowed ee 47
Quick opening............... eee eee eee 47
Park assist. ........ 0... ccc e eee eee eee 159
Parking. .... 0... cece cece eee eee 96
Parking aideecs os csvsens vo somes ve ssecers oa mse 150
Adjusting the volume................. 151
Automatic activation................4. 150
Cleaning the sensors/camera........... 256
Park assist... 20... eee eee eee eee 159
Parking aid plus: : sss ss sees se ewes 5 es 150
Parking space search................05. 157
Peripheral cameras...........--.000-5 152
REAlVIEW CAMEL a eins «i oes bs aes 5 a oe 152
Parking and maneuvering.............-- 150
Parking brake
refer to Electromechanical parking brake. 106
Parking lightSic 295