2021 AUDI A8 service indicator

Checking and Filling

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.

ZA\ 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
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.

@) 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 = / B or = indicator light turns on,
there is a malfunction in the power supply, the
battery, or the vehicle electrical system.
284
= / 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
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.

ZA\ 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
Battery general information
Because of the complex power supply, all work on
batteries such as disconnecting, replacing, etc., >

Checking and Filling

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.
Applies to: MMI: To reset the display, select on
the home screen: VEHICLE > Settings & Service
> Service intervals.
@) 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.
288

Wheels


not permitted can lead to ve-
hicle damage or accidents.
—If you install wheel covers on
the vehicle, make sure they al-
low enough air circulation to
cool the brake system. If they
do not, this could increase the
risk of an accident.

Tire wear and damage

B4H-0415

a
Fig. 188 Tire profile: treadwear indica-
tor
Tire wear
Check the tires regularly for wear.
—Inflation pressure that is too low
or high can increase tire wear
considerably.
—Driving quickly through curves,
rapid acceleration, and heavy
braking increase tire wear.
—Have an authorized Audi dealer
or authorized Audi Service Facili-


D Obey any applicable regulations in the
country where the vehicle is being oper-
ated.
298
ty check the wheel alignment if
there is unusual wear.
—Have the wheels rebalanced if an
imbalance is causing noticeable
vibration in the steering wheel.
If you do not, the tires and other
vehicle components could wear
more quickly.
Treadwear indicator
Original equipment tires contain
treadwear indicators in the tread
pattern, which are bars that are
1/16 inch (1.6 mm) high and are
spaced evenly around the tire per-
pendicular to the running direc-
tion > fig. 188. The letters “TWI”
or triangles on the tire sidewall
indicate the location of the tread-
wear indicators.
The tires have reached the mini-
mum tread depth !) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones > A.
Tire rotation
Rotating the tires regularly is rec-
ommended to ensure the tires
wear evenly. To rotate the tires, >

Wheels

be five 150 lbs. passengers in
your vehicle, the amount of
available cargo and luggage
load capacity is 650 lbs.
(1400-750 (5 x 150) = 650
lbs.)
5. Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely ex-
ceed the available cargo and
luggage load capacity calculat-
ed in Step 4.
6. If your vehicle will be towing a
trailer, load from your trailer
will be transferred to your vehi-
cle. Consult this manual to de-
termine how this reduces the
available cargo and luggage
load capacity of your vehicle.
>Check the tire sidewall
(=> page 290, fig. 187) to deter-
mine the designated load rating
for a specific tire.
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/tighten
easily.
Rims
Rims with a bolted rim ring* or with bolted wheel
covers* consist of multiple pieces. These compo-
nents were bolted together using special bolts
and a special procedure. You must not repair or
disassemble them > A\.
304

ZA WARNING
Wheel bolts that are tightened or repaired in-
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an accident. For the correct tightening specifi-
cation, see > page 323, Finishing.
— Always keep the wheel bolts and the threads
in the wheel hub clean and free of grease.
— Only use wheel bolts that fit the rim.
— Always have damaged rims repaired by an
authorized Audi dealer or authorized Audi
Service Facility. Never repair or disassemble
rims yourself, because this increases the risk
of an accident.
Loose wheel warning
Applies to: vehicles with loose wheel warning


Within the limits of the system, the loose wheel
warning in the instrument cluster warns you if
one or more wheels are loose.
Using the ABS sensors, the loose wheel warning
system compares the vibration characteristics of
the individual tires. If one or more wheels are
loose, it will be indicated in the instrument clus-
ter display with the fi indicator light and a mes-
sage. If only one wheel is affected, the location
of that wheel will be indicated.
Messages
fi Wheel bolts loose. Please safely stop the ve-
hicle and check all wheel bolts!
Loose wheel warning for at least one wheel > A\.
Check the wheel bolts on all wheels with the
wheel wrench (vehicle tool kit). Have the tighten-
ing specification checked as soon as possible with
a torque wrench. Drive carefully until then. For
the correct tightening specification, see
=> page 323, Finishing.
fl Wheel assessment active. Please continue
driving carefully
After this message appears and you have checked
the wheel bolts, the assessment phase begins
when the vehicle is in motion. This may take sev-
eral minutes.

Wheels

If the tire pressure monitoring indicator
appears
Applies to: vehicles with Tire Pressure Monitoring System in-
dicator
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too low
or if there is a system malfunction.
Using the ABS sensors, the tire pressure monitor-
ing system compares the tire tread circumference
and vibration characteristics of the individual
tires. If the pressure changes in one or more
tires, this is indicated in the instrument cluster
display with an indicator light (J and a message.
If only one tire is affected, the location of that
tire will be indicated.
The tire pressures must be stored again each
time you change the pressures (switching be-
tween partial and full load pressure) or after
changing or replacing a tire on your vehicle
= page 308. The tire pressure monitoring system
only monitors the tire pressure you have stored.
Refer to the tire pressure label for the recom-
mended tire pressure for your vehicle
=> page 299, fig. 190.
Tire tread circumference and vibration character-
istics can change and cause a tire pressure warn-
ing if:
— The tire pressure in one or more tires is too low
— The tires have structural damage
— The tire was replaced or the tire pressure was
changed and it was not stored > page 308
— Tires that are only partially used are replaced
with new tires
Indicator lights
If the @ indicator light turns on, there is a loss
of pressure in at least one tire .> A\ Check the
tires and replace or repair if necessary. Check and
correct
the pressures of all four tires and store
the pressure again > page 308.
ia Tire pressure: malfunction! See owner's
manual
if io appears after switching the ignition on or
while driving and the @ indicator light in the in-
strument cluster blinks for approximately one
308
minute and then stays on, there is system mal-
function. Try to store the correct tire pressures
= page 308. In some cases, you must drive for
several minutes after storing the pressures until
the indicator light turns off. If the indicator light
does turn off or turns on again after a short peri-
od of time, drive to an authorized Audi dealer or
authorized Audi Service Facility immediately to
have the malfunction corrected.

Z\ WARNING
— If the tire pressure indicator appears in the
display, reduce your speed immediately and
avoid any hard steering or braking maneu-
vers. Stop as soon as possible and check the
tires and their pressure.
— The driver is responsible for maintaining the
correct tire pressure. You must check the
tire pressure regularly.
— Under certain conditions (such as a sporty
driving style, winter conditions, or unpaved
roads), the tire pressure monitoring system
indicator may be delayed.

G) Tips
—The tire pressure monitoring system can al-
so stop working when there is an ESC mal-
function.
— Using snow chains may result in a system
malfunction.
—The tire pressure monitoring system in your
Audi was calibrated with “Audi Original
Tires” > page 296. Audi recommends using
these tires.
Storing tire pressures
Applies to: vehicles with Tire Pressure Monitoring System in-
dicator
If the tire pressure changes or a tire is replaced,
it must be confirmed in the MMI.
> Before storing the tire pressures, make sure the
tire pressures in all four tires meet the speci-
fied values and are adapted to the load
> page 299.
> Switch the ignition on.
>» Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Tire pressure >

Index

Glossary of tire and loading terminology... 292
Glove compartment ........0. 0c cece scene 97
Cooled... 62... eee eee 95
Valet parking’: + exes « ¥ cans & ¢ Sees + ¥ eevee 2 55
Gross Axle Weight Rating (GAWR)........ 344
Gross Vehicle Weight Rating (GVWR) ...... 344
GVWR
refer to Gross Vehicle Weight
Rating (GVWR) « sees © 2 sorves 2 0 ssamewe « a aes 344
H
Handset
refer to Rear Seat Remote............... 26
Hamdstreeis « snscsa: x x srawaws a x sams tv aceon wx one 210
HandsiFree Profiles. «ssw oo amin ss mmm © 210
Head-up display
TAGJUSTIAG scsi «6 sxsvews «a anexsen on amma 6 suszens wo 33
Adjusting the brightness................ 63
QOPErSLING’s + aces 3 = news 3 2 mom § ede + Ee 33
Headlight range control...............00. 58
Headlights
Cleaning’: « ¢ saws = ¢ sews oy eeew ee ees ene 311
Headlight range control................ 58
Washer system... .. 0... eee eee eee eee 66
Washer system (filling washer fluid) ..... 287
Head restraints
IACJUStIN Gans s cuecem @ 3 owen « 8 wee 6 oreHeR 79
Removing and installing................ 79
Heated rear Window occ. cee eee eee 102
Heated steering wheel.............00005 104
FO atingpasies ao svsise « & smwene © & anaes @ Hanae @ 0 6 100
HFP
refer to Hands Free Profile............. 209
High-voltage battery...............008- 131
Audi e-tron compact charging system.... 140
CharginiGee: « s eves = x sees + o eee eg 131, 134
Charging display on the vehicle......... 135
Charging equipment.................. 138
Charging methods.................... 131
Charging ports on the vehicle........... 131
Charging time.......... 2... eee eee 132
Connecting the charging cable.......... 134
Messages while driving................ 137
Not running for long periods of time..... 133
Opening the charging port door......... 134
Quick:eharging sec = 2 sews 2s eves vs wens we 131
350
Setting the timer’. « « esses v6 meee ve meee vs 136
Transporting charging equipment....... 139
High-voltage system............-...00-. 131
High beams
High beam assistant............00e00u 59
Highway lights..................-.0000s 58
Hill descent control.............0 2200s 122
Hill.holdiassisty. w:cesice x ecesese w = syersim oo avoir 109
Home
refer to Home address.............005 236
Home address............ 000-00 e eee 236
HomeLink
refer to Garage door opener............. 55
Home screen... 1... 0. cece eee eee eee ee 19
HOM... eee ete teens 6
Hotspot
refer to Wi-Fi...........0.- 00 eee eee 225
I
Ignition
Switching on and off...............0-. 107
Imbalance (wheels)..................-- 298
Immobilizer
refer to Electronic immobilizer........... 45
Indicator lights: : see: ss eens sy ores x copes se 7
Inspection interval............-.00--00. 287
Instrument cluster...............-0000-5 12
Adjusting the layout................0.. 13
Cleaning iwi: © swine ¥ o cwenie 2 weve wo 2 een « © 313
Engine code... .. 2... eee eee eee 267
FailUr@lve s = eee 2 x mown a = Beers ee ee x eee 12
Onsboard:computen « sss x x wari so swans oa 16
Operating......... 00. c cece eee ee eee 13
Service interval display...............- 287
Software information................. 267
Switching tabs.................0000005 13
SWitchintg CHE VIEW ass + ans 4 s ees xo Ra 13
Vehicle functions « « sivas < siren oo mewn 6 9 oe 16
Version information...............00- 267
Instrument illumination................. 63
Integrated assistance................0.. 20
Integrated Toll Module................. 161
Intelligent search
NaVvigatlotincs + weseuire + exaueas wo avassos i # eae 231
Interference-Causing Equipment Standard
(ICES) 2... eee eee 342

4N0012721BF
Index

Tightening specification
Wheel bolts ......... 0... c cece eee 323
Tightening specification (wheel bolts) ..... 323
THING sscsnirs so secenis w sneer ow emmers 3m etme wo a 16
Timer (high-voltage battery)............. 136
tiptronic
refer to Manual shifting............... 111
Tire Mobility System (tire repair set)....... 317
THROS cesses x oi ores wu enews woo cranes + areas aw SK 289
Loose wheel warning...........0+e00ee 304
Low-profile tires.............02..000- 306
REPalnisetis sccm 2 3 mow @ & wemew & wasn ao one 317
Replacing.......... 0... c eee eee eee 319
SOPVICE lif@ns = s eee ¢ x eae 3 vawed HawH 298
TIRE PKESSUNE iiss so somes oo ase ov Reem we woKs 299
Tire pressure monitoring system.... 307, 308
Tire pressure table...........-..00000- 300
Tire pressure (trailer mode)............ 147
Treadwear indicators... . 0.0.6.0 ee 298
Unidirectional..................0. 291, 322
Uniform tire quality grading............ 306
Tires and wheels
Glossary of tire and loading terminology .. 292

Tires and vehicle load limits............ 302
Toll Module
refer to Integrated Toll Module......... 161
oo) Ca 317
Tool tipS.... 2... eee eee eee eee ee 20
Top tether anchor (securing the child safety
SGat) ¢ suche 7 § See od SOBRE Fo See sD ed 92
Touch display
Adjusting feedback............---..00-5 20
QPeKating « « ssessie 2 x care oo cea o seauew we > were 18
TOWING §: & & sxise @ & aves @ & aeawein & o wean @ & waK 325
TOWING OOP sves « & wave x e waves ¢ @ wow 2 2 327
Towing protection monitoring............. 44
TPMS
Tire pressure monitoring system........ 308
Traffic incidents
refer to Online traffic information....... 239
Traffic information « sic. <6 cane v weve wo eee 240
Online traffic information.............. 239
Traffic light information................ 157
Traffic sign recognition................. 155
Traffic SiQMScsic 2% arcu oa axeueve x a oeeneve w+ oer 158
Trailer mode
Air suspension ..........000ec cence eee 147
Trailer towing...........-.. cee eee eee eee 147
Tongue weight............eeceeeeeeee 147
Trailer load « « seas + + sewn 2 2 ees vo ew ve 147
TUNM@ASSISE « esc s sree: & s eevem ¢ 2 ene s x Be 181
Turtsignals = sess <2 wee = 2 eee s = HeieR gx oes 59
U
Uniform tire quality grading............. 306
Unlocking and locking................5-5 41
By remote control.............--e0eeee 46
Using the lock cylinder..............005 44
With Audi connect vehicle control........ 47
With the central locking switch.......... 43
With the convenience key............... 46
Update (software) ........ 0. cece ee eee 264
Upright positions « scsi se ess s cows s 6 vere 76
USB
Adapters « s escciis « eoasane 2 wasire a eases @ 2% 212
USB charging ports. « secs ¢ « sores & o arenes ¥ « ave 94
USB drive
Supported types/formats.............. 258
USB stick
refer to Audi music interface........... 252
Users
LOCALUSEtS sas x s anwe ¢ § earee FE Sates GS eae 38
MYAUGPUSEDSiscs: «osm oo ees oo een eo oer 38
Using residual heat.................-.. 103
V
Valet parking sxc ¢ s exes ze wewu 2 e owen 2 ee 55
Vanity MOF ccs < = seas + nen & ¥ axes ¢ ¢ Rees 65
Vehicle
Care/cleaning . es: : sesee s seeeaseewnas 310
DIMeNSIONS asco « 2 meses « 2 msn + 6 oom @ Ho 343
Identification data................... 343
Out Of S@FVICE cares sy ces sv ees ve eee ee 316
RaiSigss « cassis x 0 senxie 9 v aaeniue 6 9 cxsee @ nave 321.
Starting.......... 06. c eee ee eee eee 107
TRANS POFt wes s x eee su eeee o Bee 2 REE 125
Unlocking and locking............-...-- 46
Vehicle:car@ssiox «msn os ean oo wenn = # oes 310
Vehicle control services..............--- 224
Vehicle data label............. eee eee ee 343
Vehicle identification number............ 343