2021 AUDI A4 USB port

Media


Audio/video files

Supported media
Audi music interface: mobile devices > page 202 such as iPhones,
MTP players, and USB storage devices in “USB Device Subclass 1 and
6” that conform to USB 2.0: USB sticks, USB MP3 players (Plug-and-
Play capable), external USB flash drives, and hard drives

USB storage devices: exFAT, FAT, FAT32, NTFS.

File system USB storage device partitions (primary/logical*): 2 per USB connec-
tion.
Album cover: GIF, JPG, PNG with max. 800x800 px. The album cover
Metadata from the medium or from Gracenote® is displayed, depending on
availability.
Playlists -M3U; .PLS; .WPL; .M3U8; .ASX

Number of files
USB mass storage device: max. 50,000 files per medium; max. 1,000
files per playlist/folder

Audio files

Format File extension

MPEG 1/2 Layer 3 -mp3

Windows Media Audio 9/10
Up to maximum 320 kbit/s
wis 48 kHz sampling frequencies
MPEG 2/4 .m4a; .m4b; .aac







Opus Opus; .0gg; .oga
FLAC flac
ALAC .m4a 48 kHz sampling frequency
Monkey's Audio -ape
Video files
Format File extension
MPEG 1/2 -Mpg; .mpeg

MPEG4 AVC (H.264) -.mp4; .m4v; .mov; .avi

Windows Media Video 9
up to maximum 15 Mbit/s and
wmv; .asf
warn, 285 1920x1080 px at maximum 30 fps
MPEG-H (H.265/HEVC) -mp4; .mov

VP8/VP9 .webm


Flash video

flv; .f4v

G) Tips
— The media sources do not support the Win-
dows Media Audio 9 Voice format.
not always display, depending on the sys-
tem language.
— The manufacturer of the storage device can
provide information about its “USB Device

— For compressing MP3 files, Audi recom-
mends a bit rate of at least 160 kbit/s. The
display showing the remaining play time
may differ for audio files with variable bit
rate.
— Special characters (such as those in ID3 tag
information) may display differently or may
208
Subclass”.
— Some MTP player functions are not support-
ed, such as rating music tracks and video
playback.

8W1012721BC
Media

Troubleshooting
The information that follows lists some trouble-
shooting options. They depend on the equip-
ment.

Problem Solution

Audi music interface/Bluetooth
audio player: the mobile device is
not supported.
Read the instructions in the chapter > page 202, Multimedia
connections/> page 201, Bluetooth audio player.

Audi music interface: the mobile
device is not recognized as a
source.
For many mobile phones or mobile devices, playback is not possi-
ble when the battery level is too low (less than 5% charge level).
The mobile device will only be recognized as a media source in
the MMI after connecting if the battery charge level is sufficient.

Audi music interface: malfunc-
tions during audio playback
through an iPod touch/iPhone.
The Bluetooth audio player function is switched on. Switch this
function off > page 213 when you are not using the Bluetooth
audio player.

Audi music interface: audio play-
back through the connected mo-
bile device is not possible.
Make sure the USB mode M7P is selected in the settings on your
mobile device.

Bluetooth audio player: interfer-
ence with track display and audio
playback.

Playback interference can occur when using the Bluetooth audio
player if a music player app from a third party provider is open.
Audi recommends using the integrated media player on your
Bluetooth device (such as a smartphone).

209

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

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

Index

Software information
Legalinformation................0005 215
Software version (MMI)
Version information.................. 215
Sound
refer to Adjusting the sound............ 212
Space-saving spare tire (compact spare tire) . 266
SPaKEUEGS s 5 mane x 5 Rates EES Gs Hate Gs HE 266
Speed limit information
refer to Traffic sign recognition......... 121
Speed limits
refer to Traffic sign recognition......... 121
SPeCdOMEtEl’s sess 5 & sess s ¥ ceews « ¥ eee vee 12
Speed warning system..........-..0-0-5 121
Sport'differéntial see: < = sea ss sees se pens 112
Start/Stop system. ...........0 2-00 eee 102
Switching off ANGION « « saves 6 «ewe oe Barer 103
Starting to- drives: < s sees = « sews + ¢ ews + ¢ oes 96
Starting (CNGINe)'. sy ewes sc agus + ewer Fes 103
Steering.......... 0.0... cee eee eee eee 111
Audi drive select s sas < 2 cawa ys gown 3 a ae 110
also refer to Steering..............-.. 111
Steering locki.s © sss ev eee eo esses x v anevere 2 ¥ 95
Steering wheel
Adjusting... . 22.00... cece e eee e eee 66
Adjusting manually..............-.0005 66
Shiftipaddles » sccwose eo smn ov enews oo sreaw «3 99
Steering wheel heating................. 93
also refer to Multifunction steering wheel. . 13
Steps for determining correct load limit... 249
Stopover (navigation) .................. 185
SEOPPING eer « 6: wsszeice « exconene w 6 eaonene « 6 ecto» & arene 96
Stopping the vehicle..........6c0. ee ewes 96
SCOPpING (ENGINE) ccs s 6 swe vo swe a 6 wives 103
StOMaGelss ¢ « aay ov pawn ¢ & mews ov Hews 6 oe 83
Storage area behind the rear head restraints. 83
Storage areas « = sews 5 x wees 6 2 pes be eG 83
Stored stations
refer'to Presetsias ss meas ss cen sv emo ve 196
Straps: « ses ¢ x neers oo eeoRS ae ee Te ee 83
Sunshade
Rear doorsis « 3 wien oo sue oa weswen os amen 2 0 57
ROOF... eee eens 47
also refer to Sunshade................. 47
SUN VISOFS 2.6... eee eee 57
298
SUSPENSION « cxcisws is « somuses © v snvvaus + v soteees & oH LLL
Audi drive select..............0000008 110
Swapping calls.............-.000 22-0 168
Swerve assist... 2.0... cece eee eee 145
Symbols
Navigation .......... 0... e cece eee eee 185
"TRATHIC cure: « = seme x ¢ sees ¥ 2 ree ¢ Eee a 190
also refer to Indicator lights.............. 7
SYNG (BUTDON) bax ss see oo msc ow ocemue w wane 92
SYStEM SELCINGS + zens «= geome & x seme ee eee 212
T
TaChOMi@teP eccs = s eae 2 = ween x 2 ess ae 12,14
Tail lights
Cleanings: « = sxe 2 & semis 2 wea <2 wre ee 256
Techinical'data: « s sss « = news = 2 saree 2 ¢ oe 286
Technical modifications................. 281
Tel@phone:.« < a ccsg + hues as Seen ss HEeRs 5 162
Accepting/ending acall................ 168
Audi phone box............00 0c eee ee 164
Charging the battery (USB)............. 165
Charging the battery (wireless) ......... 165
Connecting a mobile phone............ 162
Dialing anumber................00065 168
Exterior antenna s. « ¢ sss. ¢ sews tc caw 165
Mobile device reminder signal.......... 166
Options during aphonecall............ 168
PlayitiG:(MUSie « seers + x was 4 © seme = & eerew 201
Temperature display (outside temperature).. 15
Temperature gauge
GOOlANE « seuss ¢ 2 wenn ov mew 4 & QewE a CED 12
TeXUINDUE « saws 5 = eames 5 © eae & & ewe ¥ HERE 23
TeXUHESSAGES cauve s + seme 5: SeeE xo wee 170
SOCCINGS sisson 5 & somes oy moRM & + aseRHEE & ematENG 170
also refer to Text messages............ 170
TieSAOWINS: 2 2 crmscne 2 renee 2 us enews © sacs = 87
Tightening specification
Wheel bolts.............0 0. c eee eee 266
Tightening specification (wheel bolts) ..... 266
THM. «scones oo aenane ao aera © amen © terete © 16
tiptronic
refer to Manual shifting................ 99
Tire Mobility System (tire repair set)....... 261
TIRCS © secason i 2 vnswene 6 = vouaens 6H cusaas © # amevaee vo 9 235
Changing.......... 0... eee eee ee eee ee 263
LOW=Profiletires:: seis ss newe « x gome ¥ x ae 251

8W1012721BC

Repaltiseti. «. ico + 0 mass ov caw ¥ viemees ae os 261
Service life... . ee eee eee eee 244
TIVE PreSStiriws s < sews s ¢ eege & e ees ¥ Bo 245
Tire pressure monitoring system.... 252, 253
Tire pressure table.................00. 247
Tire pressure (trailer mode)............ 115
Treadwear indicators... 0000s sonia a een 244
Unidirectional................... 237, 266
Uniform tire quality grading............ 251.
Tires and wheels
Glossary of tire and loading terminology .. 238
Tires and vehicle load limits............ 248
Toll Module
refer to Integrated Toll Module......... 125
ToolS. 1... eee eee eee 261
Top tether anchor (securing the child safety
S@at) 6. eee eee 80
Touch display
Adjusting the brightness................ 19
Operating « « ses 2 6 mes 2 o waws s wawe we ¥ vrs 17
TOWING: + « sams 2 & eee 2 & emis 2 o pewE 2 & Bee 269
TOWING OOD. seavers «x omens ¢ x ees Fo ER a 2 oe 271
Towing protection monitoring............. 36
TPMS
Tire pressure monitoring system........ 253
Traffic incidents
refer to Online traffic information....... 190
Traffic information « secsia 2 2 wioww s owen ws acre 191,
Online traffic information.............. 190
Tiraffic famiassist 5 novos» sorte wo exes « + swore 138
Traffic light information................ 123
Traffic sign recognition................. L21
Traffic SIGNS ie: = ¢ sews + y saws 3 e ewes § ea 124
Trailer towing sc < = eee ¢ » meen 2s eee 2 ees 115
Tongue weights . visws ss sensu < w came + « eesue 115
Trailer load... 2... eee eee eee eee 115
TURMHASSISE
yess « os suneoe « 0 eestor 0 staneas a exo 146
TUM SIQMAlS eriiios oe evaens wo cnavene +o vara + renin 52
U
Uniform tire quality grading............. 251
Unlocking and locking................--. 33
BYsFEMMGTECONECOL,. cece os viaceue wo aussene © vane 38
Using the lock cylinder................. 36
With Audi connect vehicle control........ 39
With the central locking switch.......... 35
With the convenience key............... 38
Update (software) ..............2--000. 213
USB
Adapter... 0.2... ce eee eee eee eee eee 165
USB charging port..............00000005 82
USB drive
Supported types/formats.............. 207
USB stick
refer to Audi music interface........... 202
Users
LOCAL USERS sisi so eaume 6 o even © & swans #8 sere 30
myAudi users... 2.22... eee eee eee 30
Using residual heat..............00. 0000 93
V
Waletiparking siciss < «cosas no nests x 6 oneness « a ai 48
Vanity Mitotic o 3 wis 6 wanen 0 + acme & 6 coven 57
Vehicle
Care/cleaning............ cece eee eee ee 255
Dimensions .............000-.00 ee eee 286
Identification data...............0 000s 286
OUP ORSCNVICE coctine x 2 mses oo onesie wo aetne «6 260
Raising... 6... eee eee eee eee 264
StartiniG ce: « + aces « = wens 5 2 eee & o eee eo 95
Unlocking and locking...............05. 38
Vehiclescaresisns oo sca ee acer oo owen +o ons 255
Vehicle control services.............00.. 175
Vehicletdata labe@leys : « sw 2 «ewe 2 eames 2 2 2 286
Vehicle identification number............ 286
Vehicle jack... 22... ee eee eee ee eee 261
LITLINIG POINES: « o cews ¢ « www oo ews eo eee 264
Vehicle keys: « « see ys sees 4s sews se ews 33; 37
Vehicle starting system................. 103
Vehicle tool kit...............0000000-. 261
Ventilation...................0.0000 08 90
VIEW button... 2.6... eee eee eee eee 13
WoiGemalss x sas os snasnne ow winnsne 6 avateae ow « 168
Voice recognition system ...........ee sees 26
External... 6.0.0... cece eee eee ee 27
Operating’: « « ase < paves & HR B= ERE a oe 26
Ww
Warning lights
refer to Indicator lights...............0.. 7
299