2020 AUDI A6 check engine light

Checking and Filling

Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.
@) Note
— The concentration of anti-freezing agent
must be adjusted to the vehicle operating
conditions and the climate. A concentration
that is too high can lead to vehicle damage.
— Never add radiator anti-freeze or other addi-
tives to the washer fluid.
— Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
Service interval display
The service interval display detects when your ve-
hicle is due for service.
The service interval display works in two stages:
— Inspection or oil change reminder: after driv-
ing a certain distance, a message appears in the
instrument cluster display each time the igni-
tion is switched on or off. The remaining dis-
tance or time is displayed briefly.
— Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same time, the mes-
sage Inspection due! or Oil change due! or Oil
change and inspection due! appears briefly af-
ter switching the ignition on or off.
Checking service intervals
You can check the remaining distance or time un-
til the next oil change or next inspection in the
Infotainment system.
Applies to: MMI: Select on the home screen: VE-
HICLE > Settings & Service > Service intervals.
Resetting the indicator
An authorized Audi dealer or authorized Audi
Service Facility will reset the service interval dis-
play after performing service.
If you have changed the oil yourself, you must re-
set the oil change interval.
244
Applies to: MMI: To reset the display, select on
the home screen: VEHICLE > Settings & Service
> Service intervals.
C) Note
— Only reset the oil change indicator if the oil
was changed.
— Following the service intervals is critical to
maintaining the service life and value of
your vehicle, especially the engine. Even if
the mileage on the vehicle is low, do not ex-
ceed the time for the next service.

Emergency assistance


drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to
have the vehicle battery checked.
— Read the warnings when working in the en-
gine compartment > page 231.
— Handling the jump start cables incorrectly
may cause the vehicle battery to explode

and lead to serious injuries.

©) Note
Jump start cables can cause considerable
damage to the vehicle electrical system if
they are connected incorrectly.
@ Tips
— There must be no contact between the
vehicles, or else voltage could flow when
connecting the positive terminal and drain
the vehicle battery of the vehicle providing
the jump start.
— The drained vehicle battery must be con-
nected correctly to the electrical system.
— Switch off electrical equipment that is not
needed.
aT eile tle)
Both jump start cables must be connected in the
correct order.

Fig. 177 Engine compartment: connectors for jump start
cables or a charger
280


Fig. 178 Connecting the jump start cables
The jump start cable connections are located in
the engine compartment.
Follow the information about the vehicle battery
=> page 241.
Connecting the positive cable (red) to the
positive terminal
> Open the red cover on the positive terminal
> fig. 177.
1. Attach one end of the positive cable (red) to
the jump-start pin @ © fig. 178 on your vehi-
cle.
2. Attach the other end of the positive cable
(red) to the positive terminal @) on the pow-
er source.
Connecting the negative cable (black) to the
negative terminal
3. Attach one end of the negative cable (black)
to the negative terminal @) on the power
source.
4. Attach the other end of the negative cable
(black) to the jump-start pin @ on the vehi-
cle.
Starting the engine
> Start the engine in the vehicle giving the charge
and let it run at idle.
> Now start the engine in your vehicle, which has
the drained battery.
> If the engine does not start, stop the starting
procedure after 10 seconds and then repeat it
after approximately 30 seconds.
> Turn on the rear window defogger in your vehi-
cle in order to reduce any voltage peaks that
may occur when disconnecting the jump start
cables. The headlights must be switched off. >

4K0012721BD

Fuses and bulbs


This can cause damage to the electrical sys-
tem and increases the risk of fire.

Fuse panel (@) (black)


C) 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-
ty:
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.
Fuse assignment - left footwell
RAZ-0195
ay
WOlLOINI
DI
M)WIN|
kr
i
Toren
BARRIER P ala


Fig. 184 Left footwell: fuse panel with plastic clip
The fuse assignment @) and @) is in the opposite
order on right-hand drive vehicles.
4 |Engine components

Brake light sensor

Engine valves

Engine components

Engine components

WOl/OINI
Aun
Engine components

10 | Oil pressure sensor, oil temperature sensor

11 | Engine components

12 | Engine components

13 | Engine cooling

14 | Engine control module, fuel injectors

15 | Engine sensors

16 | Fuel pump

Fuse panel @ (red)

z ° . | Equipment

Anti-theft alarm system

Engine control module

Left front lumbar support

Horn

Parking brake

Gateway control module (diagnosis)

Roof electronics control module

Driver assistance systems control module

BR o Airbag control module

Electronic Stabilization Control (ESC), An-
i
ti-Lock Braking System (ABS)

12 | Diagnostic connector, light/rain sensor

13 | Climate control system

14 | Right front door control module

Climate control system compressor, body
15 .
electronics

Auxiliary battery control module, brake
16 .
system pressure reservoir

Fuse panel (8) (red)


Fuse panel (@) (black)
No. | Equipment

No. | Equipment

Engine ignition coils

Catalytic converter heating High-voltage heating, compressor

2 |Engine components


Engine mount


Engine components

A)
m\/
wir
Automatic transmission

285

Index

Luggage compartment lid............... 39
Luggage compartment lid with foot motion . 41
Panoramic glass roof.............000005 45
Sunshade (roof): « = sss + «swiss + 2 enews ao wre 45
Windows........ 0. cece eee cece eee 43
Closing aid (power closing doors).......... 32
Cockpit MMM? «5 awsess so somes a 6 sumane a vee 53)
Cockpit (overview). « iss a ewes oe eee os eee 6
Collapsible spare'tir@se:. sisson occu ev were 278
Collapsible tire
refer to Collapsible spare tire........... 278
Colored ise: 5 + ssi so ese 6 vee 6H ee ee 298
Combustion engine « oss ss sees se caws see 100
Coming home/Leaving home
refer to Entry/exit lighting.............. 51
COMpact’Sparetires, & wc ao www xv owen & oe 278
Compartment as « o sss x & sass @ & saws 2 2 Bas 81
Compass:in' the Mirror: « cww sx ces se nore o 58
GOrmiplianice’s x s ems: 5 2 wemau sx seen 2 e PERG 296
Configuration wizard.................04. 20
connect ........ 0... cee eee eee eee 177
Data plaris’s s neon ss weoen = o aceem = x eanee & 3 182
Data Privatyices ws excise ss eines 3 v cmseae so csmue 291
Emergency call............0--.00 ee ee 183
Infotainment x: « : eens se ees ae ewe gees 177
Infotainment services...........000005 178
Online roadside assistance............. 184
Vehicle control services................ 179
Connected devices
Device overvieW... 5. . ccc ce eee e eens 224
Connections
refer'to Mediaie:. «2 eciace ss ences vs one 209, 213
Consumer information................0- 293
Consumption
Reducing.......... 0. eee eee eee eee 100
Consumption (Fuel) |. cscs wx sears wo ower ov oe 16
Contacts
Add destination...............000000. 194
Importing and exporting.............. 175
Memory capacity... 6 ccs. s sees se rows 175
Opening (business card)............... 169
Updating inthe MMI.................. 175
Convenience key..........0 2.0.00 eee eee 32
Convenience closing.........:seeeeeees 44
also refer to Vehicle key..............-. 36
302
Convenience opening and closing

Windows or panoramic glass roof........ 44
Coolant temperature display.............. 14
Cooling mode..... 2.6... cee ee eee eee 89
Cooling system
Adding coolant.............00- eee ee 239
Checking the coolant level............. 239
GOOLANE « scscoss = & saacs «wwe + 0 eaters ¥ wan 238
GOPM|NPING igh sce: os meses ow sxcmne v cna a 2 wees 49
Cross
traffic assist (intersection assistant) .. 153
Cruise control system..........-..20005 130
Cup holders......... 0... 2c cece eee eee 80
Current consumption...............0.005 16
D
Data plans
Data Privacy
Dake os ccerevs © scenes © eyaetses © sieitean wo sinters © = eee
Setting
Daytime running lights.............0000. 49
Declaration of compliance............... 296
DEF (instrument cluster) « « sec s «scene so see 12
Demo mode
refer to Presentation mode............. 198
Destination onthe map.............-.+- 190
Details, x x sssasws > x cass » x axcowms + 0 eesenms 4 1 oxen 189
Determining correct load limit........... 259
Digital COMPASS « vex » 2 ween 2 wewws ¥ weeH & sg 58
Dimensions: « 2 ces + = eee & x satis & o ews 298
Dimming the exterior mirrors............. 54
Dimming the rearview mirror............. 54
Directory
S@UttiNgS sane: ¢ x nome + 7 ees & 2 Rem 5 8 Ee 175
also refer to ContactS..............00. 169
Display
Cleaning......... 0... e ee eee eee 268
Disposal..... 0.0... . cee ee eee ee eee ee 293
DIStaNGe esisccs cs cswvie we aoecwne vw serene ww cee os 16
Distance warning « vse se wen s wae a 3 earn 143
Doors
Child safety lock « sencue «ss snimse = serene © sunaeie 0 43
Door contact switch. ...............005. 52
Mechanically unlocking and locking....... 35
Power closing/closing aid............... 32
Driver information system................ 13

4K0012721BD

Drives
referto Media.............00 eee 209, 213
Drive select
refer to Audi drive select............... 108
Drive systeM..... cece eee eee eee 100, 102
Audi drive Select ecw. « 2 eeay 2 ¢ severe & 2 es 108
Driving down hills...............-0000- 105
DYIVINGBIOGRaW« « sass « ¢ eases ¢ s ace a 96, 142
Driving through water...............005 106
Driving time... ... ccc eee eee eee 16
Driving tips
Driving through water...............-- 106
Efficient driving eoss «wees ae cows se an 100
Offroad driving............. cee eee eee 106
Uphill and downhill................0.. 105
Drivinguphills.................2..000. 105
Dust filter
refer to Pollutant filter................. 91
DVD drive (media drives)................ 210
Dynamic all-wheel steering.............. 110
E
E-mail
Message Options: « : ssws st oe es st wes ee 173
SOtti Sion ss suse so meson 3 ween ona Bo 173
EDL
refer to Electronic Differential Lock...... 112
EDR
Event Data Recorder............000005 289
Efficiency assist... 0.0... eee eee ee 131
Electrical systeM...... cee eee eee eee 240
Electromechanical parking brake......... 104
Electronic Differential Lock.............. 113
Electronicimmiobilizeris: . cose ss euee « sees 37
Electronic Stabilization Control........... 112
Embedded SIM card............000ee00 178
Emergency assist.............00.00000- 154
Emergency assistance .......... 0000 eee 272
Emergency braking function............. 105
Emergency calli. « + scsese a + scesene a 6 sxecene 170, 183
Emergency flashersi« « sos vs snow ss waveire 8 a a 51
Emergency! Modine: so even 2 e eees seems eo 99
Emergency operation
DOORS cisiscise » x enscane & @ sunnane © @ summa woo nee © 8 35
Fuel filler door............0.00000005- 230
Luggage compartment lid............... 42
Panoramic glass roof................005 AS
Emissions control system..............- 230
EMergy CONSUMERS. « «nares ao enon «os swe © He 17
Energy management...............00055 100
Engine
Breakingin.......... cece eee eee eee 100
COGLANE saxo x ¢ agen & 4 SatR 7s EGR EC Rew 238
Emergency'stop’s « «ces 6 oem se een ve 93
Jump starting. ......... 0... eee eee ee 279
Start/Stop system..........2--0000005 101
Starting/Stopping:. « «sae. se sae eres a 93
Engine compartment
Opening and closing the hood.......... 232
Overview... . 2... eee eee 234
Safety precautions..................-. 231
Engine oil
INGOING wc ce seve ae meee va ewe ee ere 234
Changing.......... cee cece eee eee ee 237
Checking oil level.............00--.04. 234
COMSUMPUOMs + ¢ eens 5 & eeuws & 2 Have x 2 ERE 234
Indicator light...............0022000. 235
Replacement interval................. 244
Temperature display................... 16
Engine sound
Audi drive select’. cwcica . 2 cases oo enue vv oe 109
Engine startsyst@M secs ss sen o 9 eam o ween 94
Engine stop
refer to Start/Stop system............. 101
Entry/exit ightingie: + scsi as wscom & © sow a ws 51
Entry:assistanee:: 2 eocs 2s acca ot eee ov eee 62
also refer to Exit assistance............. 62
Environment
Unleaded gasoline.................04. 227
eSIM
refer to Embedded SIM card............ 178
Event Data Recorder (EDR).............. 289
Exit assistance... 0.0... 0. eee eee eee
Exit warning.................0.0000005
Exterior lighting.................022000
Exteriormmirrorsisccss 2s sescice ve scene v 6 aserane ¥ oo

Folding settings
External voice operation................. 28
303