2021 AUDI S4 fuel pressure

8W1012721BC
Fuses and bulbs

@) Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili-
t y.
G@) Tips
— The following table does not list fuse loca-
tions that are not used.
— Some of the equipment listed in the follow-
ing tables applies only to certain model ver-
sions or certain optional equipment.

Fig. 184 Driver's footwell (left-hand drive vehicle): fuse
panel with plastic clip
3
=f
= & a

x
Ss $ 2 8

Fig. 185 Front passenger's footwell (right-hand drive vehi-
cle): fuse panel with plastic clip


f ) (brown)
No. | Equipment

1 | Catalytic converter heating

2 | Engine components

Exhaust doors, fuel injectors, radiator in-
let, crankcase housing heating

Vacuum pump, hot water pump, NOx sen-
4 |sor, particulate sensor, biodiesel sensor,
exhaust doors

Brake light sensor

6 | Engine valves, camshaft adjustment

Heated oxygen sensors, mass airflow sen-
sor, water pump

Water pump, high pressure pump, high
8 |pressure regulator valve, temperature
valve, engine mount

Hot water pump, motor relay, 48 V drive-
train generator, 48 V water pump

10 | Oil pressure sensor, oil temperature sensor

Clutch position sensor, 48 V drivetrain
11 |generator, water pump, 12 V drivetrain
generator

12 | Engine valves, engine mount


13 | Engine cooling

273

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
Technical data

Capacities
Fuel tank 15.3 gal (58 L)


Windshield and headlight washer system*

5.1 qt (4.8L)

A/C system refrigerant oil
The exact type and amount of refrigerant oil in
the A/C system is specified on the sticker on the
refrigerant compressor.
Refrigerant oil 100/110 g® +/-10g

@) The specifications depend on vehicle equipment.


Le
|
|



Applies to: sedan
Fig. 190 Safety certificate

B8U-0380


Applies to: allroad
Fig. 191 Safety certificate
Gross Vehicle Weight Rating (GVWR)
The maximum permitted total weight @ of the
vehicle is listed on the safety certificate on the
side area of the door or on the driver's door pillar.
Gross Axle Weight Rating (GAWR)
The maximum permitted load on the front axle
@ or the rear axle @) is listed on the safety cer-
tificate on the side area of the door or on the
driver's door pillar.
Load
The maximum permitted load is listed on the tire
pressure label on the driver's door pillar.
Roof load
The maximum permitted roof load is 198 lbs
(90 kg).
287

Index

Parking lock
Manually releasing.............00000- 100
also refer to Gears... 6... eee e eee eee 97
Partition W@t sca < ssces v enees s aren ase 86, 87
Pass-through... .... cc eee cence eens 86
Pedals... 2... cece eee eee eee 99
Perchlorate ....... 0. eee eee ee eee 281
Peripheral cameras............0.000085 152
Phone
Connecting a second mobile device...... 163
Disconnecting a mobile device.......... 164
SONGS ccsain » iam © © wravens a % aosmem w v soveTs 6 169
Phonebook
refer to Directory.......... 0. e ee eae 167
PIN
A-digit myAudi PIN.................00. 30
PROLECHON sev: « ¢ cee x o cares § e oem oe ee 31
Playback (media). . sss. ss sees ie cease ee 203
Podcast
refer to Online radio.............. 197,198
POLISHINGisax « ¢ eee + & eee Eee a Ree a ee 257
Pollen filter
refer to Pollutant filter................. 90
Pollutant filter’: . aces ss seee s bees ween as 90
POWEP SOUPCES:: « = seme: =v seme ee meee e 82, 202
Power WiINdOWS ......... 0 eee e eee eens 45
Malfunction ns san 2 wean es ween a 2 wees = 45
Power windows malfunction.............. 45
Predictive control.............-.00e000- 133
Predictive messages..............--005- 129
pre sense
refer to Audi presense................ 143
Presentation mode..............-+-008 192
Presets
RadiGicres s ¢ eves 5 2 neues x 5 Haus oe ROWS FB: 196
Presets list
Feferto Presetsicis <2 sais Pressure
Tire pressure monitoring system........ 253
Tif@S': + : asvox ¢ & eaime & & eG 3 5 HORS 7 ES 245
Profile picture... . eee eee eee ee eee 30
Protecting ..... 0... 0c cece cece eee 257
Pyrotechnic elements..............000 281
296
Q
quattro... 2... eee 112
Selective wheel torque control.......... 113
R
RSGiG}: = : suse » 5 mews ¢ 2 Swe 2 a eee x eee 193
RadiOteXtiscn casi a i ance @ a anemia oo anew 196
Station list... 2.0.0... ee eee 193
Radio communications equipment........ 283
Radio‘equipment ....... eeen ee een ee eee 283
Radio Standards Specification (RSS) ....... 284
Rain/light sensor
Automatic headlights.................. 51
Intermittent mode (windshield wipers).... 58
Random
refer to Shuffle: . s sses s+ ovens peewee: 205
Range (fuel level) .................00000. 16
Reading lights.............. 2.000 eee eee 54
Rear cross-traffic assist.............0005 156
Rear lid
refer to Luggage compartment lid........ 41
Rear seatS.. 1... . cee eee eee 85, 86
Rear shelf
refer to Storage area behind the rear head
FEStrAINES wssve 2 o wawere oo esi ¥ 6 Rae @ 8 eens 83
Rearview camera... 12.1... ee eee eee eenes 152
Rear window defogger...............000 93
Rear wiper blades
Changing sec = wee ws were ov nee oo ae 8 60
Cleaning..... 2... . 6. cece eee 60
Recirculation mode..............--00005 92
RECUPERATION cesses vu suceae « & cameson ww eames ow Re 16
Refrigerant Oilivics = 5 wean eo wenn eo wwe 2 a0 287
Refueling’: ss sees 2 = saws 7 5 tees Fe ewe ro: 218
Remote access authorization (key user)..... 31
Remote control
Garage door opener..............2+-00. 48
Remote control key.............---.e eee 37
Convenience opening and closing......... 46
Key replacement...............--000-- 37
LED = suse 3 = wens = » owime oy ceeme se Rees ee 39
PANICTUMECIONS: « cscsses cs wrencce so ansnesa 3 8 arene 37
Replacing the battery.................. 39
Unlocking and locking...............005 38
also refer to Vehicle key..............-. 37