2020 AUDI S4 battery replacement

Opening and closing


RAZ-0722



BFV-0277


Fig. 29 Vehicle key (rear side): removing the battery holder
LED in the vehicle key
The LED @) indicates the vehicle key function.
> If you press a button briefly, the LED blinks
once.
> If you press and hold a button (convenience
opening/closing), the LED blinks several times.
> If the LED does not blink, the vehicle key bat-
tery is drained. Replace the battery in the vehi-
cle key.
Replacing the vehicle key battery
> Press the release buttons (2) > fig. 28 and re-
move the mechanical key.
> Press the release buttons (3) > fig. 29 while
pulling the battery holder out of the vehicle key
in the direction of the arrow.
> Insert the new battery with the “+” facing
down.
» Slide the battery holder carefully into the vehi-
cle key.
> Insert the mechanical key.
36
@) For the sake of the environment
Discharged batteries must be disposed of us-
ing
methods that will not harm the environ-
ment. Do not dispose of them in household
trash.
(i) Tips
Replacement batteries for the vehicle key
must meet the same specifications as the
original battery.
Luggage compartment
lid
General information
ZA\ WARNING
— Applies to: vehicles with anti-theft alarm
system: When the vehicle is locked from the
outside, no one - especially children - should
remain in the vehicle, because the windows
can no longer be opened from the inside
= page 33. Locked doors make it more diffi-
cult for emergency workers to enter the ve-
hicle, which puts lives at risk.


— Always close and lock the luggage compart-
ment lid and the doors when the vehicle is
not in use. Otherwise someone such as a
child could enter the vehicle through the
luggage compartment and become locked
inside it. To reduce the risk of injury, do not
allow children to play in or around the vehi-
cle.
—To reduce the risk of injuries by pinching,
make sure that no one is in the operating
area of the luggage compartment lid, in-
cluding the hinge areas and the upper and
lower edge of the luggage compartment lid.
— After closing the luggage compartment lid,
make sure that it is latched. The luggage
compartment lid could open suddenly while
driving, which would increase the risk of an
accident.
— Never drive with the luggage compartment
lid ajar or open, because poisonous gases

Fuses and bulbs


Fuse panel © (brown)
No. | Equipment


Telephone, mobile device charging func-


AN WARNING
If you still would like to try replacing the
bulbs in your vehicle yourself, read the warn-


6 |Tire pressure monitoring system
7 |Vehicle opening/start (NFC)
Auxiliary heating radio receiver, smart
module (fuel tank)



10 |TV tuner, gateway

11 | Auxiliary battery control module

12 | Garage door opener

13 | Rearview camera, peripheral cameras
14 | Right tail lights
16 | Right safety belt tensioner


Fuse panel (E) (red)
No. | Equipment


Exhaust treatment
Trailer hitch (right light)
Trailer hitch
Trailer hitch (left light)
Trailer hitch (socket)
10 |Allroad sport differential
11 | Exhaust treatment




Wl)
OIN|
Mm]
w


Bulbs
Replacing bulbs
Having a bulb replaced by an authorized Audi
dealer or authorized Audi Service Facility in cases
of doubt is recommended. 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.
268
2 |,
tion ings regarding working in the engine compart-
3 Right front seat electronics, lumbar sup- ment > A\ in General information on
port page 214.
4 |Side assist
@) Note
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

HFP
refer to Hands Free Profile............. 158
High beams
High beam assistant................... 49
Highway lights ....... 0... ccc eee eee eee 48
Hill descent assist..............002000. 105
Hill descent control..... 00... .. ce eee eee 104
Hill HOLGIASSISE « move 2 os nanos © sues oo eae woe 94
Home
refer to Home address...........-0 008 183
Home address...........0 000. c eee eee 183
HomeLink
refer to Garage door opener............. 45
Home screen... . 2... cece eee eee ee eee 17
HOM... ee eee eee 6
Hotspot
refer to Wi-Fi...........0...0e eee eee 172
I
Idle
refer to Gears » scene = een ss een es ees ees 94
Ignition
Switchitig Orand Off sc ews se wows ss wean s 92
Imbalance (wheels) ............000 eee ee 236
Immobilizer
refer to Electronic immobilizer........... 34
IndicatOrlights « aon « ¢ way x 6 aeens s ¥ wares & 2 5 7
Inspection interWals « sew: < «sees se eeps a es 226
InStrurmient clusters s ¢ ews x «aes 2 eee i os 11
Adjusting the layout...............000. 12
Cleaning....... 0... cece eee eee 249
ENGING@:COdGs ¢ = ass + © canes f eros e Sees 208
Fail @tiss 2 was 2 x nese ov wie se ere 2 ee 11
On-board computer.............0 200 eee 15
Operating...............2.. 2000-0000 12
Service interval display................ 226
Software information................. 208
Switching tabs.................2200005 12
Switching the view............. eee eee 12
Vehicle FUmetions « cnvsscs « 2 sen w a avores 0 2 tens 15
Version information...............065 208
Instruments
Adjusting illumination.................. 52
Intelligent search
Navigationiss ¢ x sews + x uews 6 wuss 6 s wee 177
Intecior UGHEING « + ews + 2 eee s pager eo me 51, 52
284
Interior MONItOriNg’s ss cows + © vesse 2 ¥ aoeeene 33
Intermittent mode (windshield wipers) ..... 55
International travel wi: ¢ sass sé mews a owen 173
Internet
FEFErTOXCONNECE 5. = esses wo eieoees =v eeavee eH 169
Internet radio
refer to Online radio.............. 191, 192
iPhone
refer to Audi music interface........... 196
J
Jump starting ........... cece eee eens 260
K
Key... eee ee eee eee 30, 34
Convenience opening and closing......... 42
Key replacement..............---0 eee 34
Mechanical key..... 0... eee eee eee eee 34
PANIC. K6W iis: = © savon ¢ ¢ eane @ § SetR ys Hem ¢ & 34
Replacing the battery.................. 36
Unlocking and locking...............005 35
Vehicle code... 1... eee eee ee 34
Key user... 22. eee ee eee ee 28
Kick-down...... 2.20... 2 eee eee 96
L
Lane assist
refer to Audi active lane assist.......... 137
Laptimer................0..0.000000. Ii
EValW@Ling’: = x came + xameon 2 pee & & teem o 3 122
SEAM Gbcis ov svvins 6 o suncans w 2 eoTueDs © a KURA 9 121
LATCH (securing child safety seats)......... 74
Leather care and cleaning............... 250
Legal information
License subscriptions................. 208
Software information................. 208
Softwale licens@Sics ss wauy as meen ay weuee a 208
Versionsnformatiomss « s ssswe ¥ ccweasm & were 208
License plate bracket................... 274
Lifting points (vehicle jack).............. 256
Light/rain sensor
Automatic headlights .................. 48
Intermittent mode (windshield wipers).... 55

8W1012721BB
Index

Parking lock
Manually releasing..............00 000s 97
also refer to: Gears « car. se ees ye ess eee 94
Partition Wetaas + s same 3 c eee ¢ & eee so eee 83
Pass-through... ..... ccc eee e ee eee eee 84
Passing prevention..............000000e 129
Paths. 0... eee eee eee eee 17
Pause (media files)................0000. 197
Pedal Sic: os anoene « somine © seen © wanes xe purer a 96
Perchlorate « sis os wns a 2 wie 2 a ween 3 oe 272
Peripheral cameras............---000-5 149
Phone
Connecting a second mobile device...... 159
Disconnecting a mobile device.......... 159
SOttiiGSivax = « wes sv seme : ees s Re ee 165
Phonebook
POfer WO DirettONys: eas + ¢ ean sg waa se 163
PIN
A-digit MyAUGIPIN « ces 2 vce e 6 em so oe 27
Protection........ 0... ce eee eee eee eee 28
Playback (media) ..............2--000-4 197
Podcast
refer to Online radio.............. 191,,192
Polishing... 6.0.0... e cece cece eee eee 249
Pollen filter
refer to Pollutant filter................. 87
Pollutant filter... 0.0... 0.0.0... e eee eee 87
Power SOUrCES ... 6... eee eee eee 78, 196
Power windows............00 000s eee 42
Malfunction. .............. eee eee eee 42
Power windows malfunction.............. 42
Predictive control..............00 eee eae 126
Predictive messageS.............00e0 eee 125
pre sense
refer to Audi presense................ 139
Presentation mode..............---005- 187
Presets
Radio... 2.2.2.2... eee eee 190
Presets list
refer to PresetS....... cece eee eee eee 190
Pressure
Tire pressure monitoring system........ 245
Tir€S eee 237
Protectitngss « «cmc 5 a omare wa svonsd oo nienen ao 249
Pyrotechnic elements............-....- 272
Q

quattro... 2... eee 108
Selective wheel torque control.......... 109
R
Radios < s ase : eee © + eeue © ¢ eeme 2 eee oe 188
RagiOTOXb rsa «acces + maven @ = awn « 2 wae 191
Station list... 2.0.0.0... eee ee 188
Radio communications equipment........ 274
Radioequipmentt eave Radio Standards Specification (RSS) ....... 275
Rain/light sensor
Automatic headlights.................. 48
Intermittent mode (windshield wipers).... 55
Range (fuel level) ...............0e eee 15
Reading LIGHtS ian. «a sere » manennce + utesene wine 51
Rear center armrest
refer to Cup holders...........2..00000- 78
Rear cross-traffic assist............20005 152
Rear fog lights. ...... 0... cece eee eee ee 48
Rear lid
refer to Luggage compartment lid........ 37
Rearview camera... ..... eee eee eee ee 149
Rear window defogger............-.00005 90
Rear wiper blades
Changing.......... 0... eee eee eee 57
GlEANING!s « s swans & = eee & eeR «EMER oon 57
Recirculation mode.............--.000es 89
Recuperation.......... 000 cece eee eee 15
Refueling. ......... 00.00 eee eee eee eee 211
Remote control
Garage door Opener’: seas ss sees st ees ees 45
Remote control key 34
Convenience opening and closing......... 42
Key replacement.........-.. eee eee eee 34
LED 2... 36
Replacing the battery.................. 36
Unlocking and locking... . sco. 6 ceve es coe 35
also refer to Vehicle key..............-. 34
Removing the caps (wheel bolts) ......... 256
REPAIItS smssiss oo senege @ © tmmame oo semnne © o oeUEES oo 272
REpeatis oo csseiss ss ssn 6 wsmnna s wanes 6 197,199
Replacement key... 0.0... 00sec ceee econ 34
Replacement parts's 5 « sais ¢ wows se ews ae 274
Replacing BULBS wes = = ssa ys sews x © ewe ¢ 268