2021 AUDI Q8 battery

4M8012721BF
Wheels

Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs.
(2.3 kg) in excess of those stand-
ard items which they replace, not
previously considered in curb
weight or accessory weight, in-
cluding heavy duty brakes, ride
levelers, roof rack, heavy duty
battery, and special trim.
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the
beads are laid at substantially
90 degrees to the centerline of
the tread.
Recommended inflation
pressure
see > page 259, Cold tire infla-
tion pressure.
Reinforced tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire. Rein-
forced tires may be identified as
“XL”, “xl”, “EXTRA LOAD”, or “RF”
on the sidewall.
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diameter
means nominal diameter of the
bead seat. If you change your
wheel size, you will have to pur-
chase new tires to match the new
rim diameter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between
rim flanges.
Sidewall
means that portion of a tire be-
tween the tread and bead.
Speed rating (letter code)
means the speed at which a tire is
designed to be driven for extend-
ed periods of time. The ratings
range from 93 mph (150 km/h)
to 186 mph (298 km/h) > table
on page 257. You may not find
this information on all tires be-
cause it is not required by law.
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the >
261

4M8012721BF
Emergency assistance


— Never drive using more than one collapsible
spare tire, because this increases the risk of
an accident.
— Normal tires or winter tires must not be

mounted on the collapsible spare tire rim.
@) Note
The compressor must be switched off after six
minutes at the most to reduce the risk of
overheating. Let the compressor cool down
for several minutes before using it again.

Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle
battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.

ZA WARNING
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). If the vehicle bat-
tery is frozen, it must be thawed before con-
necting the jump start cables. If it is not,
the risk of an explosion and chemical burns
increases. After jump starting the vehicle,
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 242.
— 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.
293

Emergency assistance


anal eile alate)
Both jump start cables must be connected in the
correct order.

Fig. 180 Engine compartment: connectors for jump start
cables or a charger

Fig. 181 Connecting the jump start cables
The jump start cable connections are located in
the engine compartment.
Follow the information about the vehicle battery
=> page 251.
Connecting the positive cable (red) to the
positive terminal
> Open the red cover on the positive terminal
fig. 180.
1. Attach one end of the positive cable (red) to
the jump-start pin @ 9° fig. 181 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.
294
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.
> With the engines running, remove the cables in
reverse order of the way they were installed.
> Close the red cover on the positive terminal.


Z\ WARNING
— Never connect the jump start cable directly
to your vehicle battery. Only use the connec-
tions in the engine compartment.
— Do not touch the non-insulated parts of the
terminal clamps. The cable must also not
come into contact with vehicle components
that conduct electricity when it is connected
to the positive vehicle battery terminal. This
can cause a short circuit.
—The plugs on the battery cells must not be
opened.
— Keep ignition sources (such as open flames,
burning cigarettes, etc.) away from the vehi-
cle batteries to reduce the risk of an explo-
sion.
— Route the jump start cables so they cannot
get caught in the moving parts in the other
vehicle's engine compartment.

@) Note
Please note that the connecting process previ-
ously described for the jump start cables is in-
tended for when your vehicle is being jump
started.

Fuses and bulbs

15 | Passenger’s side rear safety belt tensioner

Front belt tensioner on front passenger's
side
No. | Equipment
16


1 | Active roll stabilization

6 | Voltage converter

9 | Auxiliary battery control module

15 | Thermomanagement control module


No. | Equipment

Not assigned

Bulbs
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.
302

4M8012721BF

A
A/C cooling mode..........-. eee eee eee ee
A/C system refrigerant oil...............
Acceleration measurement..............
Accelerator pedal...............--00 000s
also refer to Accelerator pedal...........
AccessorieS.... 0... 0.00. eee eee
Active lane assist
refer to Lane departure warning.........
refer to Lane guidance................
Adaptive cruise assist................04.
Cleaning the sensors......... 0.0.0.0 005
Adaptive cruise control
Predictive control..............000005
Adaptive dampers « sve « « savece ae scare 6 0 oe
Adaptive speed assist
refer to Adaptive cruise assist..........
Adjusting the air distribution.............
Adjusting the brightness.................
Adjusting the sound................0005
Adjusting the temperature...............
Adjusting the vents ccs <= csws + © sews +o oer
Adjusting the volume............. eee eee
Adjusting the volume (announcements) ... .
Adjusting the welcome sound............
Airbag system... 2.2... eee eee
AIPSUSPONSION ix o © aowees « 2 mines + omnes 5, v0
Alarm system
refer to Anti-theft alarm system..........
Alignment pin (changing the wheel).......
All-weather lights...............-..00005
All-wheel steering.............---00005
ALUS@aSOntineSies. « 3 ssasess «x aimee a & iwesane sw a8
All wheel drive
refer to quattro.............0 0. eee
Amazon Alexa integration
Media playback................00000.
Operating « « seen s » ewes se eee G s FeeE Ys BOS
AMI
refer to Audi music interface...........
Android Auto
refer to Audi smartphone interface......
Anti-lock braking system................
Anti-Slip Regulation 0.642 5 eccs «sense ees
Anti-theft alarm system...............05.
Anti-theft wheel bolts...............0... 289
Apple CarPlay
refer to Audi smartphone interface...... 231
Aspect ratio
VIdCO eee eee eee eee eee 225,.227
ASR
refer to Anti-Slip Regulation............ 116
Audi adaptive light...............-.0000- 51
Audi connect
refer to CONnNect ; «= = sass ss sees ss eee ee ae 192
Audidrive'selecticy, « + scum oz scum « x pewe yoo 111
Audi music interface...............2.-- 222
Audio files............. 0000 c cece eee eee 223
Audi phone box...........0.- 00 eee eee 183
Audi presense....... 00... cee eee eee 149
Messages ........... 0.0. e eee eee eee 153
Audi pre sense front.............-...0-- 150
Audi side assist
refer to Side assist. ........ 0... cece eee 153
Audi smartphone interface.............. 231
Legalinformation.................005 236
Audi virtual cockpit
refer to Instrument cluster.............. 12
AUTO
Automatic headlights................4. 51
Climate control system.............0005 91
Auto Lock (central locking) ............... 35
Automatic climate control system
refer to Climate control system.......... 90
Automatic luggage compartment lid.... 43,44
Automatic transmission............-.0005 97
Parking lock emergency release......... 100
Automatic wipe/wash system............. 57
Average consumption................... 16
Average speed..........-. 00. cece eee ee 16
B
Bag hooks ........ 0.0. e eee eee eee eee 83
Band
refer to Frequency band............... 212
Battery
Charging (12 Volt vehicle battery)....... 253
Vehicle battery (12 Volt)............... 2511,
Winter operation (12 Volt vehicle battery) . 252
Blinds
refer to Panoramic glass roof............ 47
315

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

Heating hwcses vs cscs vo orci we sees oo es oH oes 90
HFP
refer to Hands Free Profile............. 181
High beams
High beam assistant............00000ae 52
Highway lights...................5.0005 51
Hill descent assist.............0000 0008 109
Hill descemticomtrol. «seve + « anise a a mmo © © 108
Hill Hold assist « ccosace es wen v rane ve ramen oe 97
Home
refer to Home address.............04. 206
Hommesaddnessi, = sieves + nmawos «+ wines x 2 eens 206
HomeLink
refer to Garage door opener............. 48
Home screen... ... ee eee eee ee eee 19
FHORM « « sonst 6 o arate © oi come © a ane © senor 6
Hotspot
refer to Wi-Fi...........0 0.0 c eee eee 195
I
Ignition
Switching on and off...............0--- 95
Imbalance (wheels) ..............000005 265
Immobilizer
refer to Electronic immobilizer........... 39
Inclinometer...........-.0 0c eee eee eee 108
Indicator lights........ 0... eee eee eee 7
Inspection interval............-..2.200. 254
Instrument cluster......... 0.00. e eee ee 12
Adjusting the layout................... 13
Cleaning’: « ¢ saws so sews oy eeew ee ees ene 283
Engine code............... 0c eee eee 236
Failure... eee eee eee eee 12
On-board computer..............---65- 16
OPeratiigts » mesns s+ asses a 2 mmatews © x cemsene © 5 a 13
Service interval display................ 254
Software information..............005 236
Switching
tabs: « « sosies x + acuise 6 6 cxsueee ww enn 13
Switching the view...................0. 13
Vehicle TUNCtIONS ¢ esses ¢ ¢ exes be Sees be ee 16
Version information................-. 236
Instrument illumination................. 55
Integrated assistance...............00-. 20
Integrated Toll Module................. 132
Intelligent search
NaVigatiOntice « saeco 2 & sew o same @ 9 Bears 6 201
320
Interior lighting). «+ ccs + ween ev ween ee 54,55
Interior MONItOriNgss «saa. 6 wae as wave os 38
Intermittent mode (windshield wipers) ..... 57
International travel « « wsws s 2 gaa a x mews 196
Internet
fefer'to CONNECE se. 2 sie s ween ee ewe ee 192
Internet radio
refer to Online radio.............. 216, 217
Intersection assistant.................. 156
TONIZEf wes oo ssees o 2 srw 2 2 seem oo mR oo eo 92
iPhone
refer to Audi music interface........... 222
J
JUMPStartiNG cess 2 waves a v wees ao eeeuoes oo one 293
K
Ch ee ee ee 35, 39
Convenience opening and closing......... 47
Key replacement.........ceeeeeereeeee 39
Mechanical-key’s cccv. 2s ose v sera ee ewe 39
INGE RECOGMIZER « « cnsese 6 « ecnsece sn 6 sanaeae « © anseete 96
PANIC button..................0..0005 39
Replacing the battery.................. 41
Unlocking and locking..............0005 40
Vehicle code... 2.6.6... ee eee eee eee 39
Key user... 0... eee eee eee 33
Kick-down ... 2... eee eee eee eee 99
L
Lane assist
refer to Lane departure warning......... 147
refer to Lane guidance..............05 147
Lane departure warning................. 147
Cleaning the camera area.............. 281
Lane quidanc@sas . sees eevee a enews wee 140
Lap'timer’s « = sees ¢ 2 ean x 2 oes yo wees v8: 129.
FaSer Scanners « « aay a eegu 4 x ees x ROE 122
Cleaning wor = 2 wee se anne 2 pes oe wee © 2 x 282
LATCH (securing child safety seats)......... 78
Pane Controle»: + y sagu 2 eqs x worm & & By 100
Leather care and cleaning............... 283
Legal information
License subscriptions................. 236
Software information...............0 236

Index


REAR (climate control system) ............- 91
Recirculation Mode savin ss swims x sce 6 4 wee 92
Recuperationsses «= ses + 2 samen ¥ ¢ ees 9 coe 16
REfrigeranit Ollvs sz wavew xe exes ox meme 2 eae 314
RETUGLING « « wews 6 a news oe ees Fe ema ee 239
Remote access authorization (key user) ..... 33
Remote control
Garage door opener........se.ceeeeeees 48
Remote control key 39
Convenience opening and closing......... 47
Key replacement.............02-.00 eee 39
| Al
PANIGfUNCHION ¢ s wees ¢ gaseu aan ss een 39
Replacing the battery...............00. 41
Unlocking and locking..............0008 40
also refer to Vehicle key..............-. 39
Remote controlled parking.............. 173
Remote park assist plus
refer to Remote controlled parking...... 173
Remote park assist plus with garage function
refer to Remote controlled parking...... 173
Removing the caps (wheel bolts)......... 289
REPAIIS sess 6s mmo © 3 ees © a sume SF er oo 308
Replacement key.........--22e eee eee 39
Replacement parts............--..20--5 310
Replacing fuses........... 2. eee e ee eee 298
Reporting
Safety Defects................ 310
RIMS 0. eee eee eee eee 271
Cl@SNiNG's ¢ = 22m ¢ » wemn 2 2 ees yo eee sz Be 282
Road carrier... 0.6.2... eee eee eee eee 112
Rolling... .. cece cece eee eee eee 96
Rolling
ability
Electromechanical parking brake........ 106
Transmission idleis . isan si maven oo ccomea soo 98
Roof
refer to Panoramic glass roof............ 47
Roof LOad ©» awevis oo cvewsss v seavans ao sueeun ao came 314
ROORKACK asia + aon os waren 6 e naene a 2 BOR He 88
also refer to Roof rack..........--..000. 88
Route guidance
StOPPING ..... cee eee eee eee eee 204
also refer to Navigation............... 200
Running direction (tires)..............-. 291
324
Ss
Safety belts. ...... 0.0... eee eee eee 68
GCl@aNiNG ies « s wei + y ewe » eon ee Dew gE 283
LOEKING sexes ico seesene xe emevene ww maevare ¥ w anetese © 79
Securing child safety seats.............. 79
Satellite map...... 2... eee eee eee 207
Saving fuel
Energy consumers..........-.2-.020005 L7
Recuiperationts s sacs s zaee 5 s gees & x geome e 16
Screen
refer to Touch display ...........0e0eeee 18
SGrEWALIVET iss x = caves x = sae & & eerR 8 & OG s 286
Search function
refer to Free text search............... 227
Seat:heating « sci owes 2 wawn se meen 6 ¥ owe 92
Seats
Adjusting the front seats............... 63
Adjusting the rear seats................ 65
ClOaniNiG:<« = s gees + sees s been ge wees ae: 283
FOL Giaiss o wscass vo areas 6 Hama v Fame vO 86
Front passenger’s seat adjustment....... 65
Head restraititSies x « saws + = semis + eee eo 67
Massage function..........0seeeeee eee 63
Memory function..............--000 00 71
Resetting the position.................. 65
Storing aseat profile................... 71
Seat vertilationsecs so sexes 2 sce 2 2 orm 9 oo 92
Securing the vehicle............-..2+--5- 96
Selecting a source (media).............. 223
Selector lever cs x « news ¢ ¢ hoes ss eee oP eS 97
Sensors
COVETAGE ALCS « cercx : s wow so wegs + Rares o 122
LOCATIONS race x « canzone » © camsuae » & sunoane « @ meas 123
Service interval display................. 254
Setting measurement units.............. 233
S@ttiNGSiog « 5 wes = © ewes a eee ¢ Ree § Go Be 233
Announcements and tones............. 233
Bluetooth.....................000008 234
Dateanid titties: + saws x 2 eee « «ewe gs 233
LANGUAGE « sesso vo sens oo memes vo ERE vo es 233
Measurement units...............0005 233
Medidicn = 2 gaws : «meee s Hoon 4 > eu os ee 227
Navigationiccs « weve + even 6+ semen sv meres 210
Radio... 2.6... ce cece eee eee eee eee 218
SOUNG :geue ss wee 5 s seme fs meee Ee eee 233
SySteMss «+ assva 2 e eesen 2 v eeie 2 8 eae Foes 233