coolant AUDI A8 2021 User Guide

4N0012721BF
Checking and Filling


— Drain the oil into a container designed for
this purpose that is large enough to hold the
full amount of oil in your engine.
— Engine oil is poisonous. Always store out of
reach of children.
— Prolonged contact of used engine oil with
the skin may cause skin damage. Always
wash oil off immediately with soap and wa-
ter to protect your skin.
@) Note
Do not mix any additives with the engine oil.
Additives may cause engine damage that is
not covered by your New Vehicle Limited War-
ranty.

@ For the sake of the environment
— Before changing the engine oil, make sure
you can dispose of the used engine oil cor-
rectly.
— Engine oil must always be disposed of cor-
rectly. Do not dump it in the yard, in the for-
est, or in open water, river channels, or sew-
ers.
— Have your used engine oil recycled by bring-
ing it to a used oil collection site or contact
a gas station.
Cooling system
The engine cooling system is filled with a mixture
of purified water and coolant additive at the fac-
tory. This coolant must not be not changed.
The coolant level is monitored using the Bg indi-
cator light. However, occasionally checking the
coolant level is recommended.
Messages
g& Turn off engine and check coolant level. See
owner's manual
The coolant level is too low.
Stop driving and switch the engine off. Check the
coolant level > page 282.
— If the coolant level is too low, add coolant
=> page 282. Only continue driving once the in-
dicator light turns off.
|_| Coolant temperature: too high. Please let
engine run while vehicle is stationary
Let the engine run at idle for a few minutes to
cool off, until the indicator light turns off.
— If the indicator light does not turn off, do not
continue driving the vehicle. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
if Coolant system: malfunction! Please turn
off engine
Do not continue driving, shut the engine off, and
switch the ignition off.
— See an authorized Audi dealer or authorized
Audi Service Facility for assistance.
Applies to: vehicles with plug-in hybrid drive
B Electric drive: malfunction! Cooling system.
Please contact Service
There is a malfunction in the cooling system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately.
Coolant additive
The coolant additive is made of anti-freezing and
corrosion protection agents. Only add the follow-
ing coolant additives mixed with distilled water.

Coolant additive
Gl12evo
Specification
TL774L


The amount of coolant additive that needs to be
mixed with water depends on the climate where
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) >

281

Checking and Filling

@) 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.

RAZ-0540

MIN


Fig. 183 Engine compartment - Coolant expansion tank:
@ cover with release button; @) markings
Observe the safety precautions > page 274, Gen-
eral information.
282
Applies to: vehicles with plug-in hybrid drive:
Your vehicle has two coolant expansion tanks
that are separate from each other > page 277,
fig. 181. One expansion tank for the combustion
engine and one tank for the high-voltage system.
The coolant expansion tank for the high-voltage
system is sealed and must not be opened > /\
and> A\.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 276.
> Check the coolant level in the coolant expan-
sion tank > page 277, fig. 181 using the outer
markings (2) > fig. 183. 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.
> Conventional drive system: When you add cool-
ant to the expansion tank, please refer to
=> page 281, Cooling system.
>» Plug-in hybrid drive: If you add coolant to the
coolant expansion tank for the combustion en-
gine, see > page 281, Cooling system.
» Plug-in hybrid drive: If coolant is missing from
the high-voltage system coolant expansion
tank, do not continue driving. Contact an au-
thorized Audi dealer or authorized Audi Service
Facility immediately > A\.
Adding coolant
Applies to: coolant expansion tank for combustion engine
When adding coolant to the combustion engine
expansion tank, please observe the following in-
structions.
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. 183 on the
cap and carefully turn it to the left until you
feel resistance > /\.

4N0012721BF
Checking and Filling

> Push the release button again and remove the
cap completely.
> Add coolant mixed in the correct ratio
=> page 281 up to the MAX marking.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
> 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.

der any circumstances > page 277, fig. 181.
If the coolant expansion tank for the high-
voltage system is not sealed, please contact
an authorized Audi dealer or authorized
Audi Service Facility.
— When adding coolant, it may leak into the
inside of high-voltage components and
cause a short circuit, increasing the risk of

fire.


ZA 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 274, 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.
CG) 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.
Brake fluid

BFV-0229|




ZA WARNING
Applies to: vehicles with plug-in hybrid drive
The coolant expansion tank for the high-volt-
age system may only be opened or filled by an
authorized Audi dealer or authorized Audi
Service Facility.
— The coolant expansion tank cap is equipped
with a seal that must never be removed un-


Fig. 184 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 274, 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 277, fig. 181. The brake fluid lev-
el must be between the MIN and MAX markings
oA.
The brake fluid level is monitored automatically.
Messages
EG 7 @ Brakes: stop vehicle and check brake
fluid level
283
>

Wheels

Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto-
matic transmission, power steer-
ing, power brakes, power win-
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in-
stalled equipment (whether in-
stalled or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent.
Numbers of 55 or lower indicate a
low sidewall for improved steer-
ing response and better overall
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim.
Bead separation
means a breakdown of the bond
between components in the bead.
292
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the tire pressure recom-
mended by the vehicle manufac-
turer for a tire of a designated
size that has not been driven for
more than a couple of miles (kilo-
meters) at low speeds in the three
hour period before the tire pres-
sure is measured or adjusted.
Curb weight
means the weight of a motor ve-
hicle with standard equipment in-
cluding the maximum capacity of
fuel, oil, and coolant, air condi-
tioning and additional weight of
optional equipment.
Extra load tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire. Extra load
tires may be identified as “XL”,
“xl”, “EXTRA LOAD”, or “RF” on
the sidewall.

Wheels


Z\ WARNING
Please note the important safe-
ty precautions regarding tire
pressure > page 299 and load
limits > page 302.
Tires and vehicle load limits
There are limits to the amount of
load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop.
Overloading can not only lead to
loss of vehicle control, but can al-
so damage important parts of the
vehicle and can lead to sudden
tire failure, including a blowout
and sudden deflation that can
cause the vehicle to crash.

Your safety and that of your pas-
sengers also depends on making
sure that load limits are not ex-
ceeded. Vehicle load includes ev-
erybody and everything in and on
the vehicle. These load limits are
technically referred to as the vehi-
cle’s Gross Vehicle Weight Rating
(“GVWR”).
The “GVWR” includes the weight
of the basic vehicle, all factory in-
stalled accessories, a full tank of
fuel, oil, coolant and other fluids
302
plus maximum load. The maxi-
mum load includes the number of
passengers that the vehicle is in-
tended to carry (“seating capaci-
ty”) with an assumed weight of
150 lbs. (68 kg) for each passen-
ger at a designated seating posi-
tion and the total weight of any
uggage in the vehicle. If you tow
a trailer, the weight of the trailer
hitch and the tongue weight of
the loaded trailer must be includ-
ed as part of the vehicle load.
The Gross Axle Weight Rating
(“GAWR’”) is the maximum load
that can be applied at each of the
vehicle’s two axles.

The fact that there is an upper
limit to your vehicle’s Gross Vehi-
cle Weight Rating means that the
total weight of whatever is being
carried in the vehicle (including
the weight of a trailer hitch and
the tongue weight of the loaded
trailer) is limited. The more pas-
sengers in the vehicle or passen-
gers who are heavier than the
standard weights assumed mean
that less weight can be carried as
luggage.
The Gross Vehicle Weight Rating
and the Gross Axle Weight Rating >

4N0012721BF
Index


Cleaning carbon components........ 312, 314
Cleaning control « sisi + wee x x deere se mane 313
Cleaning decorative parts andtrim........ 312
Cleaning exhaust tail pipes.............. 312
Cleaning plastic parts.................. 313
Cleaning textiles..................000, 313
Climate control system..............00. 100
Climate control system controls in the rear
Child Safety \OCKicw: ¢ : nee 5 2 cones ¥ 2 owen gy 51
Closing
Automatic luggage compartment lid...... 49
Convenience Closingtos « a sss « sazene w © enuvee 53
HOOd .. 0... cece eee 276
Luggage compartment lid............... 49
Luggage compartment lid with foot motion . 50
Panoramic glass roof................... 53
Rear window sunshade...............-. 55
Sunshades(roof)' « seissies wo sense ow amnion oo oyeu 53
Sunshade (windows). ...........5250005 52
WINGOWS = say = : wees ss eam ¢ tees a ee 52
Closing aid (power closing doors).......... 41
Coasting .... 0.0.6.0 cece eee eee eee 114
Cockpit dimming..............0ee eee eee 63
Cockpit (overview) ......... 0. cee eee ee eee 6
ColoreOdetin. « a sas + « cnewere + rises w ¥ aveanee wo 343
COMBUSHONCNGING cscs: ss wees se ewes oe wa 114
Combustion engine startup.............. 112
Comfort auxiliary climate control......... 105
Comfort:entty © sees ¢ seems sv een cv ewe ve 125
Coming home/Leaving home
refer to Entry/exit lighting «cis. eecs es vs 61
Compact Spare tire = sexs sy sews « ¢ ees g x os 323
GOMmpartiietits's « : wowy = : mews 2 : eeees 2 2 ee 95
Compass inthe mirror............-...0-- 68
Compliance ........ 0... eee eee eee eee 341
Conference call...............-.-.2.20005 217
Configuration wizard.............0...00- 20
COMMC Cina +o auveara wo wivaens ao aweiie a awa oa ae 222
Data plans...... 2... eee eee eee ee 225
Data Privaey'ss: s & seis s ¢ aces s ences se mee 336
Emergency:¢alll. sscsscx 2 cane # een + waver « 227
Infotainment
Infotainment services. ............0005 223
Online roadside assistance............. 228
Vehicle control services............200- 224
Connected devices
Device overvieW......... 0.00. cece eee 265
Connections
referto Media............eeeeeee 250, 253
Consumer information...............005 338
Consumption
Reducing ; = ess < sex ¢ s ween e x see «ee 116
Consumption (uel) « « was « asses os say & se 16
Contacts
IMPOFtlNG sews 2 « wees 2 aoe 2 BORE & e Gow 219
Updating inthe MMI...............06 219
also refer to Directory................. 216
Convenience key..........-..0 eee eee eee 41
CONVENIENCE CLOSING iss & same a 2 Hace § x HOR 53
also refer to Vehicle key..............0. 45
Convenience opening and closing
SUMSHAGE cmwsces wa ceowems «x amernte mo meneME aw one 53
Windows or panoramic glass roof........ 53
Coolant temperature display.............. 14
Cooled glove compartment............... 95
Gooling MMO eke... cesses + wenn as aineins ow te 101
Cooling system
Adding
coolant ............00 ee eee eee 282
Checking the coolant level.............- 282
GOOLANE cessawe se sevens eo seo ow oumORI wa aeRO 281
Cornering lights: « » eaves x s wewe a e mews 2 s pew 58
Cross traffic assist (intersection assistant) .. 185
Cruise Control’ system: « s wm sv esex s oes 163
Cup
holders. ...... 00... cee eee eee eee 95
Current consumption..................0. 16
Curve tilting function.................0. 125
D
Data module
Serial number (IMEI) .................. 219
Data plans........ 0... eee eee eee eee 225
Data Privacy. ... 00... cee cece eee 336
DAES ccaseus so anzee 0 0 emecen 4m cnneeis a memati © sxetone 16
Setting............ 0.0.2 263
Daytime running lights.................. 58
Declaration of compliance............... 341
DEF (instrument cluster)...............0. 12
Demo mode
refer to Presentation mode............. 240
Destination onthe map................. 233
347

Detailsts » swccu © x wweove ox seivean a x seme 2 2 wees 233)
Determining correct load limit........... 303
Digital compass ..............0 eee eee 68
DIMENSIONS): « : wees « « wees sg eas ge eR ae 343
Dimming the exterior mirrors............. 64
Dimming the rearview mirror............. 64
Directory .... 2... eee cee eee eee 216
BUSINGSS;Card wen = waam 2 2 weien x > mane a o 216
SeOttiNQS: css « serene ¢ v suewas ev ere Sw eee & 219
Display
CLEARTITG Ae = «: susnens a oi urea ao cieeie « 0) anetine 0 i 313
DispOSalecie «+ sssoee a 0 ensues wo mezess vv arate @ 338
DistamC@ enc o «vse ov wasen a a oawe 2 a wm ¥ os 16
Distance warning sews so ssc + awson 9 & secon 175
Doors
Ghildisafiety lOGk seccas x 0 neue x cnemen « 0 aseasin 3 51
Door contact switch...............200-. 62
Mechanically unlocking and locking....... 44
Power closing/closing aid............... 41
Driver information system................ 13
Drives
refer to Media...............0-4- 250, 253
Drive select
refer to Audi drive select............... 124
Drive systeM.... 0.0... ee eee eee eee 114, 118
Audi drive select .............0.000008 124
Driving down hills.............2.-00 eee 122
Driving program........ see e eens 110,174
Driving through water.................. 122
Drivingueiime’, so sxeusie «i coissen © a onmvire © eaten wo 2 16
Driving tips
Driving through water...............-- 122
Efficient driving : see: sy esse ss ores 5 ces 116
Uphill and downhill................... 122
Driving UpHillsss « » sess x = wavs a & saws 2 5 wee 122
DVDidfivein: « « saves 2 = cms 5 2 ewes & ese Fe 251
Dynamic all-wheel steering.............. 127
E
| 220
S@CtiNGS news « woes © s woos 4 & ween & 3 rane 220
EDL
refer to Electronic Differential Lock...... 129
EDR
refer to Event Data Recorder (EDR)...... 333
348
Efficiency assiStccc «sows 6 = meee ow eeaee ¥ o 164
Predictive control...............00005 170
Electrical system ..... 0.0... 0. eee eee ee 284
Electric range... . 2... eee eee eee 238
Electromechanical parking brake......... 121
Electronic Differential Lock.............. 129
Electronic immobilizer sss. 5 s een so mayen 4 os 46
Electronic Stabilization Control........... 129
Embedded SIM card s « saga « ¢ secon ae was ¢ 3 223
Emergency assist. ..........00-.0ee eee 186
Emergency assistance.................. 317
Emergency braking function............. 121
Emergency call...............-00. 218, 227
Emergency flashers.............---000-- 61
Emergency Mode w icies saw es cee ee een 112
Emergency operation
DOORS iss secwous « os exewans = x caamene = exanems = > wR & = 44
Fuel filler door... ..... 00... eee eee eee 273
Luggage compartment lid............... 51
Panoramic:glass rOOF sre. 6 2 sree «2 severe o oe 54
Emissions control system.........-.0005 273
Eneroy COnsUMMersios se neww + wen a s eee a sg 16
Enéroy flow display’: sce: ss swam + s aes vee 115
Energy management............--...0- 117
Energy recovery.............0..0.0000. 114
Engine
Breakinigniti's « seus « segues x ¢ awe 3 eee Ze 114
Coolant. ascvons vs acne wo awcvces 0 a semana w stamese 281
Emergency stop.......--..00-.ee eee 107
JUMP StACING « ¢ gems + a eee gy eS 8s ee 323
Start/Stop system « secs so sews oe enews ¥ oo 117
Starting/stopping.............0.-000 107
Engine braking effect
refer to Recuperation................. 114
Engine compartment
Opening and closing the hood.......... 276
OVERVIEW « cscs +o soeces «a sserens wo aewens © a ow 277
Safety precautions..............0000 0 274
Engine oil
AGING « xsins < = cevan ¢ § Sates 7 5 Ee FS ESR 277
CHANGING ie: @ 2 ween 2s eee sa ee oe ewe 2 280
Checking oil level... .. 0... . cee ee eee eee 277
Consumption....................200- 277
Indicator lights. 5 ws s ewes » s wwe as eens 278
Replacement interval................. 287
Temperature display................0-. 1s

4N0012721BF
Index

Online services
refer toconnect.......... cece eee eee 222
Online system update.................. 264
Online traffic information............... 239
OPeniing sc» « swesius © o cwcwew w eeewesens vt euswens we eaewoue 41
Automatic luggage compartment lid...... 49
Convenience opening...............0405. 53
Fuel-fillerdoor's « s sve ¢ « weeoa ¢ 0 wanes ¥ ane 271
HOOd .... cece eee 276
Luggage compartment lid............... 49
Luggage compartment lid with foot motion . 50
Panoramic glass roof..............2000. 53
Rear window sunshade................. 55
Surishaden(root) « scons «a accuse 2 x emma oo ose 53
Sunshade (windows) ..............00005 52
Windows ......... 20. eee eee eee 52
Opening and closing
refer to Unlocking and locking........ 41, 46
Opening the charging port door.......... 134
Operating
Head-up display’: « « seis ie gees + eres + eo 33
Instrumenticluste tienes» « secre a sangse « = snees T3'
Multifunction steering wheel............ 13
Multi Media Interface............... 18,21
Rear Seat Remote..............0005 18, 28
Text input... 6.2... eee eee eee eee 25
Towchdisplay's = 2 sews « s sews & «ee ¢ eee 2 18
Voice recognition system.............-. 34
Operating¢mModes « sein «sows + wae w ¥ wae 114
Optional equipment number............. 343
Options
Medias a scasss i a susaas « o: anmwons 4 nmnuans 4 aseatas 257
Radio... ieee eee 248
Outside noise... eee eee eee eee 116
Overview: (GOCKpit):. « swine o « creme a simone « 0 scene 6
P
PaiMtCOde la . o sccvam aw seauewe & avevane & o voeaun a os 343
Paintdamagess « « wseas 6 www ve sees & o renee 312
PANIC BUGLON': ¢ mess ss wenu s y eens « ¥ ene 5 2 45
PANIG fUNCtION Se: = = sews = ¢ aeupe ¢ o ee 3 eee 45
Panoramic glass roof.......... eee ee eee 53:
Convenience opening and closing......... 53
Emergency closing............-..20-005 54
Quick opening and closing.............. 54
Parental control
DVD... oes 257
Rear Séat REMOtes s acaw 5 « meme ay wens 2 oe 28
Parkassist plUS « scas + < xan 4 e eee eRe 198
Parking... ... cece cece eee e eee 108
Parking aid... . 1.0... eee cece eee eee eee 188
Adjusting the volume................. 190
Automatic activation.................. 189
Cleaning the sensors and camera........ 311
Deactivating rear cross-traffic assist .... . 195
Parkcassist:plusiac ss scoaa «waa a 3 wien ooo 198
Parking aid plus...............02-.00. 188
Parking space search.................. 196
Peripheral
cameras............-0000-- 191
REARVICWHGAIMIEF Alcan x exessene so acenece a 0 eonsere 191
Remote controlled parking............. 202
Switching off maneuver assist.......... 208
Parking and maneuvering.............-- 188
Parking brake
refer to Electromechanical parking brake. 121
Parking heater
refer to Auxiliary climate control........ 104
Parking light Sie 2 o ccs + venues eo rece eo eoeneee 58
Parking lock emergency release.......... 112
Pass=through cscs x ¢ ogee y ees yo ewes so oe 98
Pédalsteius + 2 qeme = © aime < Roe 5 BURN FE HORE 111
Pedestrian detection..............-.00. 159
Perchlorate. ... 2.2.0.0... cece eee eee eee 338
Peripheral cameras............--0000-- 191
Phone
Connecting a second mobile device...... 210
Disconnecting a mobile device.......... 211
SO TEIIGS ssenosw 2 0 cmemeioe « oxsuemen © sitanems a oexints 218
Phonebook
refer to Directory............002--005- 216
PIN
A-digit myAudi PIN...............000488 38
Protection wssine s+ sce ww inne 6 6 anrsass ww anes 39
Playback (media) ..... 0... cess eee eee eee 253
Plug-inmhybrid drive’s « sss x x cages x « emcee a 114
Coolant.......... 00.0. e eee eee 281, 282
Power meter...........0 cece eee eee 15
Plug-in hybrid mode.................0.. 114
Podcast
refer to Online radio.............. 246, 247
Polishing ....... 0... c cece cece 312
353