2021 AUDI Q8 hood open

4M8012721BF
Checking and Filling



B8K-2120


Fig. 160 Engine compartment: engine oil filling opening
cover (example)
Observe the safety precautions > page 242, Gen-
eral information.
> Turn the engine off.
> Open the hood > page 243.
> Unscrew the cap % for the engine oil filler
opening > fig. 160.
> Carefully add 0.5 quart (0.5 liter) of the correct
oil > page 245.
> Close the engine oil filler opening cap.
> Close the hood > page 243.
> Restart the ignition after two minutes and read
the current oil level in the MMI > page 246,
Checking the engine oil level.
» Applies to: using engine oil that meets the rec-
ommended specification: Add some more en-
gine oil again if necessary.

ZA WARNING
— When adding oil, do not let oil drip onto hot
engine components. This increases the risk
of a fire.
— You must close the cap on the oil filler open-
ing correctly so that oil does not leak out on-
to the hot engine and exhaust system when
the engine is running, because this is a fire
hazard.
— Always clean skin thoroughly if it comes into
contact with engine oil.
—
Engine oil is poisonous and must be kept out
of reach of children.
— Store the engine oil securely in the original
container.

CG) Note
— The New Vehicle Limited Warranty does not
cover damage or malfunctions if the recom-
mended intended use of the vehicle and
maintenance measures listed in the Audi
Owner's Manual and the Warranty & Main-
tenance Booklet were not followed.
— Only use high-grade engine oil that explicit-
ly meets the Audi oil quality standard for
your vehicle. Using another oil may cause
severe vehicle damage.
— Do not mix any additives with the engine oil.
Additives may cause engine damage that is
not covered by your New Vehicle Limited
Warranty.
@) For the sake of the environment
— Oil should never enter the sewer system or
come into contact with the ground.
— Follow the legal regulations in the country
where you are located when disposing of
empty oil containers.
Changing engine oil
Audi recommends having the oil changed at an
authorized Audi dealer or authorized Audi Serv-
ice Facility.
Observe the safety precautions > page 242, Gen-
eral information.
The engine oil must be changed at the intervals
specified in the Warranty & Maintenance Book-
let. This is very important because the lubrication
function of the oil gradually declines during regu-
lar vehicle operation.
The engine oil should be changed more frequent-
ly under certain circumstances. Have the oil
changed more frequently if you often drive short
distances, your vehicle is predominantly in stop-
and-go traffic situations, is in very dusty environ-
ments, or is operated for long periods of time in
temperatures below zero.
Cleansing additives in the oil make fresh oil ap-
pear darker after the engine has run briefly. This
is normal and no reason to change the engine oil
more frequently than recommended.
247
>

4M8012721BF
Checking and Filling

the vehicle will be operated. If the coolant addi-
tive percentage is too low, the coolant can freeze
and damage the engine.




Coolant Freeze protec-
additive tion
Warm min. 40% min. -13 °F
regions max. 45% (25 °C)
Cold min. 50% max. -40 °F
regions max. 55% (-40 °C)

® Note
— Before the start of winter, have an author-
ized Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
— If the G12evo coolant additive is not availa-
ble in an emergency, do not add any other
additive. You could damage the engine. If
this happens, only use distilled water and
restore the correct mixture ratio with the
specified coolant additive as soon as possi-
ble.
— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
— You can continue driving if the permitted
G12evo coolant additive was not added.
However, go to an authorized Audi dealer or
authorized Audi Service Facility immediately
to have the coolant replaced to reduce the
risk of engine damage.
— Due to the risk of engine damage, the cool-
ing system should only be refilled by an au-
thorized Audi dealer or authorized Audi
Service Facility. An authorized Audi dealer or
authorized Audi Service Facility can also pro-
vide you with important information about
the recommended coolant additive.
= 5 [RAZ-0540

MIN


Fig. 161 Engine compartment - Coolant expansion tank:
@ cover with release button; @) markings
Observe the safety precautions > page 242, Gen-
eral information.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 243.
» Check the coolant level in the coolant expan-
sion tank > page 244, fig. 159 using the outer
markings (2) > fig. 161. The coolant level must
be between the markings (2) when the engine is
cold. When the engine is warm it can be slight-
ly above the upper marking.
>» When you add coolant to the expansion tank,
please refer to > page 248, Cooling system.
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank >@.
If you must add coolant, use a mixture of water
and coolant additive. Audi recommends mixing
the coolant additive with distilled water.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cap.
> Push the release button @) © fig. 161 on the
cap and carefully turn it to the left until you
feel resistance > A\.
> Push the release button again and remove the
cap completely.
> Add coolant mixed in the correct ratio
=> page 248 up to the MAX marking.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
249

Checking and Filling

> Turn the cap to the right to tighten it until you
feel resistance a second time.
Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

ZX WARNING
— The engine compartment in any vehicle is a
potentially dangerous area. Stop the engine,
switch the ignition off, and allow the engine
to cool before working in the engine com-
partment. Always follow the information
found in > page 242, General information.
— Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment. This increases the risk of
burns. The cooling system is under pressure.
When you no longer see or hear steam or
coolant escaping, you may open the engine
compartment with caution.
— When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the
coolant in the original container and away
from children. There is a risk of poisoning.

© Note
Do not continue driving if the coolant expan-
sion tank is empty. Do not add any coolant,
because air could enter the cooling system
and damage the engine. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
250
Brake fluid

BFV-0229]


Fig. 162 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 242, Gen-
eral information.
Checking the brake fluid level
> Slide the cover that is located below the wind-
shield wipers on the driver's side toward the
windshield and remove the cover.
> Read the brake fluid level on the brake fluid res-
ervoir > page 244, fig. 159. The brake fluid lev-
el must be between the MIN and MAX markings
ANG
The brake fluid level is monitored automatically.
Messages
GG fi @® Brakes: stop vehicle and check brake
fluid level
Stop the vehicle and check the brake fluid level.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Changing the brake fluid
Brake fluid should be changed at regular inter-
vals. Have the brake fluid changed by an author-
ized Audi dealer or authorized Audi Service Facili-
ty. The authorized Audi dealer or authorized Audi
Service Facility will inform you of the replace-
ment intervals.

A WARNING
— If the brake fluid level is below the MIN
marking, it can impair the braking effect and
driving safety, which increase the risk of an

4M8012721BF
Checking and Filling

Other battery types
Explanation of warnings:
Fire, sparks, open flame, and smoking are
& forbidden.
Always keep children away from battery
@) acid and the battery.


@/ | Always follow the instructions in the oper-
fQ | ating manual.

Z\ WARNING
All work on the batteries must only be per-
formed by an authorized Audi dealer or au-
thorized Audi Service Facility.
— Gases that escape from these different bat-
tery types can be poisonous or flammable.
— The contents of these battery types can be
corrosive. If any battery contents come into
contact with the skin, flush the affected
area for at least 15 minutes with clean wa-
ter. Then wash the affected area with soap.
Have the affected area examined by a medi-
cal professional.
@) Note
Components must not be connected to the
battery terminals and wires on these battery
types because this increases the risk of dam-
age, for example due to overvoltage.

@ For the sake of the environment

“5 J These types of batteries must be dis-
posed of using methods that will not harm
the environment. Do not dispose of them in
household trash. They contain harmful sub-
stances and recyclable raw materials. Contact
an authorized Audi dealer or authorized Audi
Service Facility for more information.
ing the 12 Volt vehicle battery

Fig. 163 Engine compartment: connectors for a charger or
jump start cables
Observe the safety precautions > page 242, Gen-
eral information, > /\ in Battery general infor-
mation on page 252 and > /\.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
The charging cable connections are located in the
motor compartment. The ground point ©) is al-
ways located on the vehicle body.
>» Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 243.
> Press the release lever on the positive terminal
and fold the cover upward > fig. 163.
> Clamp the charger terminal clamps to the jump
start pins according to the instructions. (Hex
head bolt under a cover (), ground point on the
vehicle body ©).
> Insert the power cable for the charging device
into the socket and switch the device on.
>» At the end of the charging process, switch the
charger off and pull the power cable out of the
socket.
> Remove the charging device terminal clamps.
> Close the cover on the positive terminal.
> Close the hood > page 243.

ZA WARNING
— Never connect a charging cable or jump
start cable directly to the 12 Volt vehicle
battery. Only use the connections in the en-
gine compartment > page 253. >

253

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

Index

Multi Media Interface...............0005 20
Menus and symbols.............000-008 21
OPGrAtiNG's + ease x x eee ee Kae s 2 BemE o 18,21
Switching the displays on or off.......... 20
MUEING ies: 2 secon © a women & eee ooo oN Foo eae 31.
MYAUGI 5 = ees ss pews so pews s eames ee 32,193
myAudi navigation................. 200, 203
MYAUGI USERS ¢ sicts ss caus a x ens ds Bema sa: 32
N
Narrow areaS.... 22... cece eee eee 146
Natural leather care and cleaning......... 283
Navigation. ..............0..0..0.000. 200
BetteRhOUt@aas 2 x wean s a sana s age & s a 209
CallinGiesnis ¢ = scene v awe ov ween ee wm 8 oe 203
Changing the scale.............00000e 203
also refertoMap...........--.0e ee eee 204
Navigation database
Version information.............00005 236
Navigation (instrument cluster) .......... 206
Ns 83
SY, 310
Night vision assist...............-..0004 131
Cleaning the camera...............4.- 281
Notification center. ....... 0... cee eee eee 23
Oo
Octane rating (gasoline)................ 238
Odometer... .... cece eee eee eee 14
ReS@ttinGssssx « = sees ¢ ¢ ees 3 ieee ss res 14
Office address
refer to Business address.............. 206
Offroad
refer to Offroad driving................ 108
Offroad
driving ees = ¢ swwn 2 2 wen 2 2 were so wee 108
OFF (climate control system) ............-. 91
Oil
refer to Engine Oils: «sw s vases owen 2 245
On-board computer. .......5-.0. 00 eee ee 16
On Board Diagnostic System (OBD)... 241, 303
Online map
refer to Satellite map...............05 207
ONLINE RADIO « swcomss «2 sooness 6 w sevens wo ERE oo 216
also refer to Online radio.......... 216, 217
Online roadside assistance.............. 198
322
Online services
refer toconnect.........e eee eee eee 192
Online system update.................. 234
Online traffic information............... 209
OPEN Geers so ceseons 3 v cevvans ov sumsees & 2 sume Woe ORE 35
Automatic luggage compartment lid...... 43
Convenience opening...............0085 47
Fuel filler:dOOP ss: ics cane so eae oe eas ooo 239
HOOd .... cece eee eee 243
Luggage compartment lid............... 43
Luggage compartment lid with foot motion . 44
Panoramic glass roof.............2-200. 47
Sltishiade (OT) ss i s cows 4 c teen se ree ei 47
Sunshade (Windows): s «sso so ieee oo sossan 46
Windows..... 02.00.00. cece eee ee eee 46
Opening and closing
refer to Unlocking and locking........ 35,40
Operating
Head-up display.................00000. 27
InstruMeNt ClUster s sions & eines & wave ae ove 13
Multifunction steering wheel............ 13
Multi Media Interface............... 18,21
TEXtIN PUB iss 3 2 wien 3 wens a = acer os EM 6 eo 25
Touch display.......... 0.00 eee eee eee 18
Voice recognition system............... 28
Optional equipment number............. 313
Options
MeGidiwe = » zemy s meme ¢ eee « 5 ee et 227
R@GIO sxisacs 3 smisans @ o amivens & 0 orewaun 2 0 aera 8 217
Overview (cockpit) «6 cies ce cece sce nees eee 6
P
Paint COd@z»: = » saws x 2 wee sy eee a 2 ee 313
Paint damad@ws« z = sem es ewe se eee es oe 282
PANIC button. ..............-.0..00000 39
PANIC function... 0.0.0... c cece eee eee eee 39
Panoramic glass roof..............00000- 47
Convenience opening and closing......... 47
Emergency closing..........sceeseeeees 48
Quick opening................ eee eae 48
Parental control
DVD... eee eee eee 227
Park assist plus. ........ 0.0000 e eee eee 170
Parking ..... 0.6... cee cece eee ee 96