ABS AUDI A8 2021 User Guide

4N0012721BF
Wheels

differently even if they are the
same size > A.
>If you would like to equip your
vehicle with a tire and rim com-
bination that is different from
what was installed at the facto-
ry, consult with an authorized
Audi dealer or authorized Audi
Service Facility before making a
purchase > A.
Because the spare tire® is differ-
ent from the regular tires instal-
led on the vehicle (such as winter
tires or wide tires), only use the
spare tire* temporarily in case of
emergency and drive carefully
while it is in use. It should be re-
placed with a regular tire as soon
as possible.
All four wheels must be equipped
with tires that are the same brand
and have the same construction
and tread pattern so that the
drive system is not damaged by
different tire speeds. For this rea-
son, in case of emergency, only
use a Spare tire* that is the same
circumference as the regular tires.


Z\ WARNING
—Do not use steel rims that are
17 inches or larger. Otherwise,


damage to the vehicle and an
accident could result.
—Only use tire/rim combina-
tions and suitable wheel bolts
that have been approved by
Audi. Otherwise, damage to
the vehicle and an accident
could result.
—For technical reasons, it is not
possible to use tires from oth-
er vehicles. In some cases, you
cannot even use tires from the
same vehicle model.
—Make sure that the tires you
select have enough clearance
to the vehicle. Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif-
ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged
and this can reduce driving
safety and increase the risk of
an accident.
—Only use tires that are more
than six years old when abso-
lutely necessary and drive
carefully when doing so.
—Do not use run-flat tires on
your vehicle. Using them when

297

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 >

4N0012721BF
Care and cleaning


Component Situation Solution

Plastic parts Deposits Damp cloth

Heavier deposits Mild soap solution ®), detergent-free plastic cleaning solu-
tion, if necessary


Displays/instru- | Deposits Soft cloth with LCD cleaner; dust in the lower area of the
ment cluster instrument cluster can be removed using a soft brush.
Controls Deposits Soft brush, then a soft cloth with a mild soap solution®)
Safety belts Deposits Mild soap solution ), allow to dry before letting them re-
tract
Textiles, Deposits adhering to | Vacuum cleaner
artificial leather, |the surface
Alcantara Water-based deposits
such as coffee, tea,
blood, etc.
Absorbent cloth and mild soap solution®

Oil-based deposits
such as oil, make-up,
etc.
Apply a mild soap solution ®), blot away the dissolved oil or
dye, treat afterward with water, if necessary

Certain types of de-
posits such as ink,
nail polish, latex
paint, shoe polish,
etc.
Special stain remover, blot with absorbent material, treat
afterward with mild soap solution, if necessary)


Natural leather Fresh stains Cotton cloth with a mild soap solution®

Water-based deposits
such as coffee, tea,
blood, etc.
Fresh stains: absorbent cloth
dried stains: stain remover suitable for leather

Oil-based deposits
such as oil, make-up,
etc.
Fresh stains: absorbent cloth and stain remover suitable
for leather
dried stains: oil cleaning spray

Certain types of de-
posits such as ink,
nail polish, latex
paint, shoe polish,
etc.
Spot remover suitable for leather


Care

Regularly apply conditioning cream that protects from
light and penetrates into the material. Use special colored
conditioning cream, if necessary.

313

4N0012721BF
Fuses and bulbs


This can cause damage to the electrical sys-
tem and increases the risk of fire.

Fuse panel (2) (brown)


() Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili-
ty.
@ 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.
Fuse assignment - left footwell
Fig. 209 Left footwell: fuse panel with plastic clip

Fuse panel @ (brown)
No. | Equipment

Engine ignition coils

Engine start, electric drive clutch

Windshield wiper control module

Left headlight electronics


Ul
WIN)
eR
Climate control system blower

6 | Instrument panel

Windshield wipers

Zz
8 |High-voltage heating, compressor
9 Panoramic glass roof

Fuse panel (2) (black)
No. | Equipment

1 |Engine mount

N Left rear door control module

Windshield washer system/headlight
washer system




4 |Right headlight electronics
5 | Front seat heating
6 |Right rear door control module
7 |Sockets
8 | Left front door control module
9 |Parking heater
Fuse panel @) (red)

No. | Equipment

Anti-theft alarm system

Engine control module

Horn

Parking brake

Diagnostic interface

Roof electronics control module

WOlLOINI
DI
WIN]
rR
Driver assistance systems control module

10 | Airbag control module

Electronic Stabilization Control (ESC), An-
LL
ti-Lock Braking System (ABS)

Rear climate control unit, diagnostic con-
12
nector, light/rain sensor


Climate control system, vehicle electrical
13
system control module

14 | Right front door control module

Climate control system compressor, vehi-
15
cle electrical system control module

16 | Brake system pressure reservoir

Fuse panel (@) (black)

No. | Equipment


1 |Engine components

329

Data privacy

typically 30 seconds or less. The EDR in this vehi-
cle is designed to record such data as:
— How various systems in your vehicle were oper-
ating;
— Whether or not the driver and passenger safety
belts were buckled/fastened;
— How far (if at all) the driver was depressing the
accelerator and/or brake pedal; and,
— How fast the vehicle was traveling.
These data can help provide a better understand-
ing of the circumstances in which crashes and in-
juries occur. NOTE: EDR data are recorded by your
vehicle only if a non-trivial crash situation occurs;
no data are recorded by the EDR under normal
driving conditions and no personal data (e.g.
name, gender, age, and crash location) are re-
corded. However, other parties, such as law en-
forcement, could combine the EDR data with the
type of personally identifying data routinely ac-
quired during a crash investigation.
To read data recorded by an EDR, special equip-
ment is required, and access to the vehicle or the
EDR is needed. In addition to the vehicle manu-
facturer, other parties, such as law enforcement,
that have the special equipment, can read the in-
formation if they have access to the vehicle or the
EDR.
Assist system monitor
This vehicle is equipped with an Assist System
Monitor (ASM). The ASM collects data that is not
stored by the EDR in the event of an accident. The
main task of the ASM is to make it possible to un-
derstand the role and the behavior of the assist
systems in these accident situations. In addition
to the data that the EDR stores, the ASM records
data related to the assist systems starting sever-
al seconds before the accident or near-accident.
The data collected by ASM depends on the equip-
ment and may include the following information:
status information of the assist systems (for ex-
ample, if they are switched on or off, system
events, etc.), control interventions (for example,

D_ System availability may be limited depending on the mar-
ket.
2) In preparation at the time of printing.
334
by ESC, ABS, Audi pre sense’, etc.), and assist
systems settings (such as speed settings).
Special devices and access to the vehicle or to the
ASM are necessary in order to read the data from
the ASM memory. In addition to the vehicle man-
ufacturer, third parties such as law enforcement
authorities can also read and analyze the stored
data if they have access to the vehicle or to the
ASM.
Data usage
Audi can read out the information stored in the
data memories or similar data, or give this infor-
mation to third parties, especially in the follow-
ing situations:
— If the vehicle owner or lessee agrees
— If there is an official request from the police
— Ifa court or authorities request it
If legally permitted, Audi can also use the data
for analysis of vehicle operation and safety per-
formance or provide this data to third parties for
research purposes.
Data memory for autonomous driving!)
Applies to: vehicles with data memory for autonomous driv-
ing
When park assist plus is active > page 198, data
is stored in a memory in the vehicle. This data is
continuously overwritten by more current data
after a few seconds. The data is erased when the
ignition is switched off.
In certain situations, such as if an airbag has
been triggered or a parking process was ended,
the corresponding technical data may be stored
in the data memory for autonomous driving. The
data memory for autonomous driving is a read-
only memory that has a limited amount of stor-
age space. If the storage space is full, the oldest
data will be overwritten with the newest data. >

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