2021 AUDI Q8 brake light

4M8012721BF
Checking and Filling


accident. Do not continue driving. See an au-
thorized Audi dealer or authorized Audi
Service Facility for assistance.
— If the brake fluid is old, bubbles may form in
the brake system during heavy braking. This
could impair braking performance and driv-
ing safety, which increases the risk of an ac-
cident.
— The brake fluid in your vehicle must meet
the standard VW 501 14 and is available at
an authorized Audi dealer or authorized
Audi Service Facility. If this brake fluid is not
available, another high-grade brake fluid of
equivalent quality may be used, and it must
meet
the U.S. Federal Motor Vehicle Stand-
ard (FMVSS) 116 DOT 4, Class 6.


Switch off all electrical equipment that is not
needed. If necessary, some equipment will be
switched off automatically. Vehicle functions or
driving stability may be limited. Drive to an au-
thorized Audi dealer or authorized Audi Service
Facility immediately.
= Electrical system: low battery charge. Bat-
tery
will be charged while driving
The starting ability may be impaired.
If this message turns off after a little while, the
vehicle battery has charged enough while driving.
If this message does not turn off, drive immedi-
ately to an authorized Audi dealer or authorized
Audi Service Facility.

@) Note
— If the brake fluid level is above the MAX
marking, brake fluid may leak out over the
edge of the reservoir and result in damage
to the vehicle.
— Do not allow any brake fluid to come into
contact with the vehicle paint, because it
will corrode the paint.
Electrical system
If the = f B or = indicator light turns on,
there is a malfunction in the power supply, the
battery, or the vehicle electrical system.
= f B Electrical system: malfunction! Safely
stop vehicle
Do not continue driving and switch the ignition
off > A\. See an authorized Audi dealer or author-
ized Audi Service Facility for assistance.
= Electrical system: malfunction! Restart not
possible. Please contact Service
If you switch the ignition off, you will not be able
to restart the vehicle. Vehicle functions or driving
stability may be limited. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately.
= Electrical system: malfunction! Please con-
tact Service
Z\ WARNING
When there is an electrical system malfunc-
tion, vehicle functions may not work and driv-
ing stability may be limited, which increases
the risk of an accident. Do not continue driv-
ing and switch the ignition off. See an author-
ized Audi dealer or authorized Audi Service Fa-
cility for assistance.


Battery
lala Meme cd)
Because of the complex power supply, all work on
batteries such as disconnecting, replacing, etc.,
should only be performed by an authorized Audi
dealer or authorized Audi Service Facility > A\.
Multiple batteries with different technologies
may be installed in your vehicle:
— Vehicle battery (for example, for starting the
engine, basic power supply) > page 252, 12
Volt vehicle battery or > page 253, Other bat-
tery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 253, Other bat-
tery types
Not running the vehicle for long periods of
time
The battery will gradually drain if the vehicle
does not run for long periods of time. To ensure
251
>

4M8012721BF
Care and cleaning


height and width of the inside of the car
wash.
ZA WARNING
—To reduce the risk of accidents, only wash
the vehicle when the ignition is off and fol-
low the instructions from the car wash oper-
ator.
—To reduce the risk of paint damage, do not
wash the vehicle in direct sunlight.
—To reduce the risk of damage, do not wash
decorative decals* with a pressure washer.
—To reduce the risk of damage to the surface,
do not use insect removing sponges, kitchen
sponges, or similar items.
— When washing matte finish painted vehicle
components:
—To reduce the risk of cuts, protect yourself
from sharp metal components when wash-
ing the underbody or the inside of the wheel
housings.
— After washing the vehicle, the braking effect
may be delayed due to moisture on the
brake rotors or ice in the winter. This in-
creases the risk of an accident. The brakes
must be dried with a few careful brake appli-
cations.
— To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax.
— Never use protective wax. It can destroy
the matte finish effect.
@) Note — Do not place any stickers or magnetic
signs on vehicle components painted with
matte finish paint. The paint could be
damaged when the stickers or magnets
are removed.

— If you wash the vehicle in an automatic car
wash, you must fold the exterior mirrors in
to reduce the risk of damage to the mirrors.
Power folding exterior mirrors* must only
be folded in and out using the power folding (@) For the sake of the environment
function.
—To reduce the risk of damage to the rims
and tires, compare the width between the
wheels on your vehicle with the distance be-
tween the guide rails in the car wash.
—To reduce the risk of damage, compare the
height and width of your vehicle with the
Only wash the vehicle in facilities specially de-
signed for that purpose. This will reduce the
risk of dirty water contaminated with oil from
entering the sewer system.
Cleaning and care information
When cleaning and caring for individual vehicle are not listed, consult an authorized Audi dealer
components, refer to the following tables. The or authorized Audi Service Facility. Also follow
information contained there is simply recommen- __ the information found in > A.
dations. For questions or for components that
Exterior cleaning




Component Situation Solution
Windshield wiper | Deposits Soft cloth with glass cleaner, > page 59
blades
Headlights/ Deposits Soft sponge with a mild soap solution®
tail lights
Sensors/ Deposits Sensors: soft cloth with a solvent-free cleaning product
camera lenses Camera lenses: soft cloth with an alcohol-free cleaning sol-
ution
Snow/ice Hand brush/solvent-free de-icing spray >

281

4M8012721BF
Fuses and bulbs

@) 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. 189 Driver's footwell: fuse panel with plastic clip

Fuse panel (4) (brown)


No. | Equipment

Catalytic converter heating

Engine components

Engine components

Engine components

Fig. 188 Driver's footwell: fuse panel with plastic clip

Brake light sensor

Engine components

Engine components

Engine components

WlLOlINI
AD)
MW)
ASWIN/
PR
Engine components

BR Oo Oil pressure sensor, oil temperature sensor

b Bb Engine components

R N Engine components

H Ww Engine cooling

fa BR Engine control module

BR uw Engine sensors

Bb a Fuel pump

Fuse


No. | Equipment

1 | Ignition coils

3 | High-voltage heating


299

Fuses and bulbs


Compressor | 13 | Left headlight






































Audi music interface, USB input

4
5 |Engine mount 15 | USB input
6 |Windshield washer system control module
7 LisioTnieNe panel Nas | Equipinent
8 | Climate control system blower T | Ant-theté dlaunsystem
9 |Driver assistance systems control module :
2 | Engine control module
E UL
10. | Emergency 'callsystem 3 | Front seat electronics, lumbar support
11 | Engi
ngine start 4 |Automatic transmission selector lever
Di 5 |Horn
No. | Equipment 6 | Parking brake
1 |Front seat heating 7 |Diagnostic interface
2 |Windshield wipers 8 | Roof electronics control module
3 | Left headlight electronics 9 |48 V drivetrain generator
4 |Panoramic glass roof 10 | Airbag control module
5 |Left front door control module Electronic Stabilization Control (ESC), An-
Il | ‘
6 |Sockets ti-Lock Braking System (ABS)
7 | Right rear door control module 12 | Diagnostic connection, light/rain sensor
9 | Right headlight electronics 13 | Climate control system
10 Windshield washer system/headlight 14 | Right front door control module
washer system control module 15 | Climate control system compressor
11 | Left rear door control module
12 | Parking heater Fuse assignment - left side of cockpit
No. | Equipment
Seat ventilation, seat electronics, rearview
1 mirror, rear climate control system control
panel, diagnostic connection, traffic infor-
mation antenna (TMC)
2 Vehicle electrical system control module,
diagnostic interface
3 |Sound generator Fig. 190 Left side of the cockpit: fuse panel with plastic
4 | Transmission fluid cooling valve ete
5 |Engine start
8 | Night vision assist, active roll stabilization 5
No. | Equipment
9 |Adaptive cruise assist, front wheel sensors - -
2. |Audi phone box, exterior antenna
10 | Exterior sound generator 5
3 | Climate control system, fragrance system
Intersection assistant, driver assist sys- .
11 4 |Head-up display
tems
5
7d


Steering column lock

300

Index

BOCK FOURE serene 6 & sense ¥ a cwavens ¥ Ht ceurene ¥ same 206
Blowers « sisi oe cena v6 arenes a omen ow oS Fo 91
Bluetooth
Audio player...........-000.0000 ee eee 221
Connecting a device. ....... cece ee eee 235
Connecting a mobile phone............ 181
Deleting atdevice rsicse + + scene a + soesene a 6 axece 236
Device overview............2..2-00008 235
Discoritiecting a device. sc csus xs ewes es 235
Displaying profiles................0005 236
Selecting adevice...............-.04. 235
Specifying a favorite ............00 000. 236
BOOSE:s » & sais 4 £ Saene & H GRD 4S GES TS ROS 15
Boost pressure indicator................. 15
Brake fluid
Checking the brake fluid level........... 250
BRAKGS cvax = scnay % § eesae ¢ ¥ HGS 7 E HaR FOES 104
Brake fluid: « 2 weed es wees a eee oo wees 2 250
Emergency braking function............ 107
(0) 108
New brake pads « weiss + mes se ey 2 ery 105
Brands’: « sae: x = comes 5 © pues & eeeeR © Femme « 237
Break-in security feature..............0.8. 38
Breaking in
New brake pads...........-. cece eeeee 105
INQWrtineSi: « «cerns «0 xenon © 9 semen © moons © 263
Browser
refer to Media center...............00. 224
Bulb replacement..................000- 302
Business,addressin.. . cence us oecan os aren wo 206
C
California Proposition 65 Warning........ 243
Battery specific.......... 0... ee eee 252
Calllist.. 0.0... 185
CAME ASH acess © 6 sensens % « omnes 5 vu omen & moments 122
Locations ......... cee eee eee eee 123,
Capacities
Fuel talk’: 2 sexs = = meen < ¥ tee v o Hes x He 314
Washer fluid reservoir..............005 314
Cargo MOOr ws ss wees « e meme 5 2 eee 2 pew Fe 87
Cargo Nets + 5 wee » o pew e + sees ee Bee Be ee 87
Gar wash's = Catalytic converter................00005 241
Cell phone
refer to Telephone...........-0ee eevee 181
316
Cell phone compartment
refer to Audi phone box.............4. 183
Central
locking............0 0... cece eee 35
AUTO LOCK: « saa s ana. am & § Suis G 3 Have 35
Convenience key............0 02: e eee eee 40
Convenience opening and closing......... 47
Luggage compartment lid............... 43
Mechanically unlocking and locking....... 38
MESSAGES « snc so smones oo wsme oo eames «soem 37
Remote control key............--.00005 40
SGttinGs s x cen » x eee £2 RES Fo wR 3 8 oe 36
Vehicle key sccm « 0 sss © a eenme = stonene i 3 omens 40
Central locking switch...........-...00-. 37
Ceramic DrakeSeonie. x a oeinis we seesam o secuwwe oo 5 105
Certificationts, s 2 asws « saun + ¢ sume 2 ¢ cee 311
Changing light bulbs................... 302
Charging
refer to Power sourceS.........-.-.00-05 82
Charging the battery
Mobilesdevicesis « « ssisin x « seine sw ayseie 0 as 222
USB... eee 184
Wirelessis « « saups ¢ © sues x 2 cto xe ees gb 184
Child safety lock
Climate control system controls inthe rear. 45
Power windows............0000 eee eee AS
REArdGGrSis« + s sean sa awa 2 Aaees s aeeR GS 45
Child safety seats... .. 0.0... cece eee eee 76
Securing to the top tether anchor........ 80
Securing with asafety belt... co. 6 6 coun s 79
Securing with LATCH...............-.0. 78
Cleaning... ... cece eee eee 280
Cleaning Alcantara...............000005 283
Cleaning artificial leather............... 283
Cleaning carbon components........ 282, 283
Cleaning controls’. « sees se sews & e saws x coe 283
Cleaning decorative parts andtrim........ 282
Cleaning exhaust tail pipes.............. 282
Cleaning plastic parts................0. 282
Cleaning textiles................0.000. 283
Climate control system...........-...0-- 90
Climate control system controls in the rear
Child safety lock................0 00000. 45
Closing
Automatic luggage compartment lid...... 43
Convenience closing.............+-.05 47
Hood... 1... eee eee eee 243
Luggage compartment lid............... 43

Index

Drives
refer to Media.............000 eee 220, 223
Drive select
refer to Audi drive select............... 111
Drive systeM..... ee eee eee ee ee 102, 104
Audi drive Select s cso 2 ¢ cawe 2 2 gence a ee 111
Driving down hills...............-0.00- 108
DriVinig Program. ¢ «mas xc ees + cess 98,145
Driving through water............-..005 109
Driving time... .. 6. cece ee eee eee eee 16
Driving tips
Driving through water................- 109
Efficientdriving
¢ wuss « ¢ cows se cows xe ea 102
Offroad driving............. cee eee eee 108
Uphill and downhill................00. 108
Driving track. . 22... . ee eee eee eee 107
Drivinguphills................02..000. 108
DVDEARIVG is 1 3 cosnees «x cemeeas =o sammate = x amemens © © 221,
E
ESimaibress « aaueos oo asawtan a x ansuw x aanwrne « ¥ sent 190
Settings................ 00. e ee eee 190
EDL
refer to Electronic Differential Lock...... 116
EDR
refer to Event Data Recorder (EDR)...... 303
Efficiency aSSiStie: + 2 swe » 2 mew 2 y aes oe: 135
Predictive comtrobenics + i ices « mesa 2 + sein 141
Electricalisystem’s « « sessce 2 seeona ee ene owe 251
Electromechanical parking brake......... 106
Electronic Differential Lock... 2.0... 006.. 116
Electronic immiobiliZer «0: se ecns ak mows sg os 40
Electronic Stabilization Control........... 116
Embedded SIM card............--.00005 193
EMMERGENCYZASSISE averse « o ssenee © oneuens «6 vnesane 157
Emergency assistance ................2. 286
Emergency braking function............. 107
Emergency call ws: <2 sce se vnc ve ee 188, 197
Emergency flashers..............---00-+ 53
Emergency mode............. essen eeee 101
Emergency operation
DOONS « sean oo een 2 5 een ©» em 2 ee Yo 38
FUCUREP OOP a. « sticesus c s want 1 aesene 6 ae 241
Luggage compartment lid............... 45
Panoraftiic Glass TOOT iss « ¢ savns s x eave 2 oc 48
318
Emissions control system..............- 241
ENergyCONSUMErSias « & sone + wae oo wae oo 0 Ly:
Energy management................005 102
Engine
Breaking iin’: « esis <0 cee & ecw ve eon ¥ 102
Coolant. ... 0... 2. eee eee eee eee 248
Enisrgency StOpiax « «sews + vee s = ees es He 95
JUMP StARtiNg so sews ov sei oo scones ow sense 293
Start/Stop system. ...... 0... eee ee eee 103
Starting/Stopping Engine compartment
Opening and closing the hood.......... 243
OVERVIEW '« eswisics oo cesses oo stance ow siete © 0 ae 244
Safety precautions..................0. 242
Engine data
refer to Sport displays.................. 15
Engine oil
AGOING & esccen 3 2 cconoa oe ee ao Sa oe 245
Changing........ 2. cece eee eee eee 247
Checking oil level.............---000-. 245
CONSUIMPUOliiss x 2 czers ¢ = wees 2 & Rew 2 owe 245
Indicator light............... 2.00000 245
Replacement interval................. 254
Temperature display.................-. 15
Engine sound
Audi driveselectix «asco: ss sseses «x seoune 9 «3 112
Engine’start system war » sw 6 2 awa 8 6 we 96
Engine stop
refer to Start/Stop system............. 103
Entry/exit Lightings «+ sci 6 « sae & 6 overan aa 53
Entry aSSistanees. « 2 sews oo sie 9 2 eee oo saree 65
also refer to Exit assistance............. 65
Environment
Unleaded gasoline..................0. 238
ESC
refer to Electronic Stabilization Control... 116
ESC Offroad... 1... eee ee eee 117
eSIM
refer to Embedded SIM card............ 193
Event Data Recorder (EDR).............. 303
Exit assistance... 0.2... eee ee eee 65
Exit warning ............... 5 eee sees 15S
Exterior antenna.............02-..0 eee 184
Exterior lighting.................02-000. 51
Exterior MUPFOPS sic 2 6 wma sv sew © meee © x 55
Folding settings ..............0000 0000s 36

4M8012721BF

Parking aids. + csssce x2 esemne oo encase ve enmuate ¥ ¥ 159
Adjusting the volume.............0005 161
Automatic activation.................. 160
Cleaning the sensors and camera........ 281
Deactivating rear cross-traffic assist. ... . 166
Park.assist plus; < - eses ss eee% ss eeaes es 170
Parking:aid plus « cisvie s & coe 6 soos ao wre 159
Parking space search.................. 167
Peripheral cameras................-4. 162
Rearview cametaies . 2 sccm so ewan vo exe y 162
Remote controlled parking............. 173
Switching off maneuver assist.......... 179
Trailerview's 2 ssn sees 2 o meow oo eee 2 ¥ 163
Parking and maneuvering............... 159
Parking brake
refer to Electromechanical parking brake. 106
Parking lightSivn « s mew ¢ o mews o ewney 3 ween a SL
Parking lock emergency release.......... 100
Partition Wetec s = ems sv seme s s meen ob eee 86
Pass-through...........2--..0 eee eee ee 86
Pedals. .... 2.2... cece eee eee eee eee 99
Pedestrian detection................04. 131
Perchlorate ....... 0... cee eee eee 308
Performance/torque display
refer to Sport displays.................. 15
Peripheral cameras.............--000-- 162
Phone
Connecting a second mobile device...... 182
Disconnecting a mobile device.......... 183
Sete S crnics ao serene «meme « w anene © memes w 188
Phonebook
refer to Directory.............0 eee ae 186
PIN
4-digit myAudi PIN..............-..00- 32
PROLCCUONica « s wou + & wiseu s & vaewe ¢ ¥ cows 33
Playback (media) « « sscs sv sees se eee ve es 223
Podcast
refer to Online radio............6% 216,217
Polishing iss + « ccavusys @ cqees @ © meres +e Rees eee 282
POUlUtane Titers oss x = saeays & 2 emus x = eee a 90
Power closing (doors)..........seeeeeeeee 35
Power sourceS........-.-0-0-0 eee 82,222
Power window malfunction............... 46
Power windows...........--.0 eee eee eee 46
Malfunctions « < seas ss saws ¢ 2 eee de eee 46
Predictive control.............0..00000- 141
Predictive messages...............- 99,136
pre sense
refer to Audi presense................ 149
Presentation mode...............-.005- 211
Presets
Radio... 2... 2. eee eee 215
Presets list
feferto Presets. «= isas teresa veieas ce 215
Pressure
Tire pressure monitoring system.... 275,276
THRs. oo sowie oo ceusie © 6 arene © 8 aoe we meee 266
Profilespietures siswin x + scausm a 3 aimesm © 0 omawene eH 32
Progressive StESTING’s ¢ & mews ¢ x wows ¢ y news ¢ 114
Protectinng:cs < = saves ¢ = saree & © eewie +s owes 282
Pyrotechnic elements............-...0- 308
Q
QGUSUERO's sas « 5 Nees 5 EGS, eB Eo HaeeR 115
Selective wheel torque control.......... 116
R
Radio’: = «wes e s secu ss ween 5 s weree © ¥ eee = 212
Radio text. ....... cece eee eee eee 215
Station list... 00... . eee eee eee 212
Radio communications equipment........ 310
Radio equipment.............. 0c eee eee 310
Radio Standards Specification (RSS)....... 311
Railseanrion’s «ssw 2 women ae ones: ao mcm 2 © a 112
Rain/light sensor
Headlights ......... 0.0... ce eee ee eee §1
Intermittent mode (windshield wipers) .... 57
Random
Fefer to Shute: « 2 gems = 2 gems = noes 3s Fe 225
RAnGe’s « sane se neue 5 & mem 5 y ae GB ee 16
Reading lights................00. eee eee 54
Rear cross-traffic assist............000.. 166
Rear lid
refer to Luggage compartment lid........ 43
Rear lowering.......... 00.0 e cece eee eee 85
Rear seats... 0... eee cece eee 65
Rearview camera...... 0.0.2... 0 ee ee eee 162
Rear window defogger............-..0--- 92
Rear wiper blades
Changing ......... 0. cece ee eee eee eee 59
ClOaNiNG :: « s sees ¢ s ees 4 e een vo eee se oe 59