check engine light AUDI S4 2020 Owner's Manual

8W1012721BB
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-
it 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. 187 Driver's footwell (left-hand drive vehicle): fuse
panel with plastic clip
3
=f
= & a

x
Ss $ 2 8

Fig. 188 Front passenger's footwell (right-hand drive vehi-
cle): fuse panel with plastic clip


) (brown)
No. | Equipment

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

9 |Hot water pump, engine relay

10 | Oil pressure sensor, oil temperature sensor

Clutch pedal position sensor, engine start,
water pump
i

12 | Engine valves, engine mount

13 | Radiator fan


14 | Fuel injectors, engine control module

265

Index


Driving:down HWS: sccies 2 vives ev eee = 2 eevee 104
Driving programms « «sisi. & 2 owes a 0 wasn 2 2 ime 133
Driving through water...............005 105
DIIVIGSCUTISss « = eee x & eee « nanewE s eRe a se LS
Driving tips
Driving through water................- 105
Efficient driving
Offroad driving....
Uphilland downhill. « & ssceiie ee cvawise wo sway 104
Driving up hills:; ; « s0«s : 2 sees se eee = 2 es 104
Dust filter
refer to Pollutant filter..............0.. 87
DYNAMISStEETING « wes ¢ v mews 2 exes 6 were 107
E
E-mail
Message:Optiomstan. + + ssc a 6 seca w 6 ossen 167
Settings........ 0.0... cece eee eee 167
EDL
refer to Electronic Differential Lock...... 109
EDR
Event Data Recorder iis ss ccs scana es 269
Efficiency BSSisties « a cawy xv wows vv maw a es 124
Electrical SySte@il's s s sees ¢ 2 exes i rama i re 222
Electromechanical parking brake......... 102
Electronic Differential Lock.............. 109
Electronic immobilizer.............00000. 34
Electronic Stabilization Control........... 109
Embedded SIM ear « essicscs os soci v a ssteine wo 0 170
Emergency assistance wcscs os caw s eeea a eo 253
Emergency braking function............. 103
Emergency Callies s & css s ¢ weiss s nae 165,174
Emergency flashers...............000005 50
Emergency mode......... 02. eee eee 97
Emergency operation
DOOIS « snay ¢ © agay ae eee aH eee 2 He gE 32
Fuelsilleridoorin: « suiccs ov saws x aracne <0 ans 213
Luggage compartment lid............... 40
Panoramic glass roof................--. 44
Sliding/tilting SUNTOOF wos... vee se eon ss 43
Emissions control system..............- 213
Energy CONSUMEIS:: « s svse so ee ee Hewes ewe 15
Energy management.................085 99
282

Engine
Breakingin....... eee eee eee eee eee ee 98
GOOlaNE 2 snow 4 « meay ¢ e meme 2 x eee d RoE 220
Emiengeney tpt 3 seas vx wns o siemens a ¥ a 92
Jump starting. ......... 0. cee eee eee 260
Start/Stop system............--000 eee 99
Starting/Stopping wc « «esse se enews wees 92
Engine compartment
Opening and closing the hood.......... 215
Overview... .... 2. eee eee eee 216
Safety precautions..............0e00es 214
Engine oil
AGING o cweses oo eeeirece a emeners aw onemeiee vw eeSoes
Changing
Checking oil level... sca ss yeen ee reuse: 216
CONSUMPTION bss ¢ & saves & o ceawers © 8 ere 6 0 ws 216
Indicator light..............00.000 00 217
Replacement interval................. 226
Temperature display................... 14
Engine sound
Audi drive select.............002-.00. 106
Engine Start/Stop mode
refer to Start/Stop system............55 99
Engine start system.............000 000s 93
Engine stop
refer to Start/Stop system.............. 99
Entry/exit lighting..............0.-.. eee 50
Entry assistance ....... cece eee eee eee ee 62
also refer to Exit assistance............. 62
Environment
Unleaded gasoline................200. 210
ESC Offfad sec so seus 5 vere so eae ov os 110
ESC Sport.............0 0.00.0 .000000. 110
eSIM
refer to Embedded SIM card............ 170
Event Data Recorder (EDR).............. 269
Exit assistance... 2... eee eee eee eee
Exit warning..............0..0.0000005
Exterior antenna...............0..000.
Exterior lighting.................022-00
EXCe@niO MIPKONS secs ws wasos © w cess vem a OY
Folding settings

External voice operation................. 25