oil AUDI A8 2021 Owners Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2021, Model line: A8, Model: AUDI A8 2021Pages: 362, PDF Size: 99.29 MB
Page 4 of 362
![AUDI A8 2021 Owners Manual Table of contents
About this Owner's Manual......
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About this Owner's Manual......
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Table of contents
About this Owner's Manual......
SUMIMAry: < = exe : eens: Seen cs sens
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Cockpit. ...... 0... eee eee eee eee
Indicator lights overview...........4..
Display and operation...........
Instrument cluster...............
Instrument cluster overview...........
Operating. ecccuse w+ were oo wens oo ayes 9 ¥
Adjusting the display.................
Coolant temperature display...........
Tachometer’ series i ewe so snes ¥ & ome
Power meter...............0 00000005
QUOOMEtEr as + 2 ame < gas = papas s ¥ HERS &
Outside temperature display...........
Engine oil temperature indicator.......
Boost indicator’: 2 2c« «= sesa ¢ x sews «x 2x8
Vehicle functions « seis ss emis ee mes ee
Touch displays....................
General touch display operation........
Multi Media Interface................
Rear Seat Remote...............2...
Screens (NPCs « s wees s eae se wee as ee
Head-up display..................
Descriptionis: ss gem = x eames ¢ eee ge eee
Voice recognition system........
General information.................
DeSeriptionis = ssssas « « wens s + eres « + aes
External voice operation..............
Global functions.................
Additional function buttons...........
Starting and driving.............
Personalization..................
Luggage compartment lid.............
Child safety lock.............0...000.
POWEr WIKdOWS 6: «oxen se aes ye eee
NOD
OO
12 12 12
13
13
14 14
15
15
15
15
16
16
18 18
20
26
29
33 33
34 34
34
35
3F 37 38 38 38
Al 41 45
48
51
52
Panoramic glass roof................. 53
Valet parking............... 0c eee eee 55
Garage door opener.........60..e sees 55
Lights and Vision................. 58
Exterior lighting « sce ss ees se eea se ees 58
Interior lighting wiv «= ssw 2 6 ese = 3 ese 62
ViSION. 0. ee eee eee 64
Windshield wipers............-..00-- 66
Digitalcomipass’s ss gos « s wasn x & were 8 3 68
Sitting correctly and safely...... 70
Correct passenger seating position...... 70
FROMUSOAES!, «areas ao axoniva 5 & aumeane wa savers 70
Rear seats... 2... eee 74
SECeriig WHEEL su: s x wou 4 x naaee ee ee 77
Head restraintsisn: «+ cscs vo asceine vo wen ws 78
Safety belts........ 0.0... cee eee eee 80
Memory function..............-.000+ 83
Aitbag System sms: «+ suscens oe sowie «5 voeusic 84
Child safety seats................000- 88
Storage and convenience........ 94
POWEPrSOUICES wece ae ete ee ore ne 94
Cup holders..............00--0 eee ee 95
Storage and compartments............ 95
Luggage compartment............... 97
Roof rack... eee eee 99
WWarmitanGicolediics «6 scien «6 eve 6 6 on 100
Climate control system............... 100
Steering
wheel heating.............-. 104
Auxiliary climate control.............- 104
Fluids in the A/C system.............. 105
BXRIMIIG)). 5 sccces 6 ase wo moms 3 o OOM 8 Ho 107
Starting the vehicle.................. 107
When driving.......-..e0ceeeee sees 108
Drive SYStC Mises oo scene +o em oo omen oo 114
Start/Stop system............00 0 eee 117
Brakes... 2.0.0... eee eee ee eee eee 119
Electromechanical parking brake....... 121
Special driving situations.............. 122
Driving dynamic.................. 124
Audi driverselectis « was «+ cine 2 6 navies a 0 124
Suspension..............0 0.02.0 000. 125
StCGKitig + scm ss caus a e seen se Sees 4 eee 127
Page 6 of 362
![AUDI A8 2021 Owners Manual Table of contents
Co | fan a 250
General information................. 250
DVD: drive « swe s 2 awe 2 ewes 2 ewe see 250
Bluetooth audio player............... 251
Amazon Alexa.... 2.0.0. cece AUDI A8 2021 Owners Manual Table of contents
Co | fan a 250
General information................. 250
DVD: drive « swe s 2 awe 2 ewes 2 ewe see 250
Bluetooth audio player............... 251
Amazon Alexa.... 2.0.0. cece](/img/6/57605/w960_57605-5.png)
Table of contents
Co | fan a 250
General information................. 250
DVD: drive « swe s 2 awe 2 ewes 2 ewe see 250
Bluetooth audio player............... 251
Amazon Alexa.... 2.0.0. cece eee eee 251
Multimedia connections.............. 252
Playing medias. « & ssc 2c ewae « owe oo ee 253
Options and settings................. 257
Supported media and file formats...... 258
Troubleshooting ewies 2 < sce se enw so xy 259
Audi smartphone interface...... 261
S@tUD « ses + y gam peas + yoms os Bene 261
Troubleshooting.............-..00005 262
Additional settings.............. 263
Systemisettingsc « + cssuene so mvswee a soseeue vs 263
Software update........... 0.0 e eee 264
Connected devices..............2---5 265
Legal.information ss « sess s+ ama sx ween « 266
Additional information.......... 268
Brands and licenses...............-4- 268
Maintenance and Care........... 269
Checking and Filling............. 269
Fuel... cee eee 269
Refueling ......... 0... ce eee ee eee eee 270
Emissions control system............. 273
Engine:compartmMentss. scsi so vec eo cee 274
Engineoil........ 00... eee eee eee 277
COOLINGSYSEEM « « sees & = nets 5 = eetew so ore 281
Brake:fluid «2 csoswe s 2 wscceve ov eevee oo erm 283
Electrical system. ...........002-0 00 284
Battery: » = sees = » mean 5 4 meee ye ee Gt BE 284
Windshield washer system...........- 287
Service interval display............... 287
WWATEBUSE. core 5 6 sae oo sms oo ee oo oe 289
Wheels and Tires...........--0000 00s 289
Tire pressure monitoring system....... 307
Care and cleaning................ 310
Generalinformation................. 310
Carwashes ; aves + + sews ss ews se eee ee 310
Cleaning and care information......... 311
Taking your vehicle out of service....... 316
DO.It YOUSUF ovis. io 6 sssicone 3 6 excess 8 4 sane 317
Emergency assistance........... Sly
Generalinformation................. 317
Equipment sncseas xo wexeas ae seems as arvuews ¥ 2 317,
Tire mobility kit.............0...000- 317
Replacing wheels................-00. 319
Space-saving spare tire............... 323
Jump starting....................00. 323
"TOWING © szerws = i sates & 2 a £ § See 5g ee 325
Fuses and bulbs.................. 328
Fuses... 0... eee eee eee 328
BULDS ccs = seme x eens ot ewe ve ee a Pe 332
Customer information........... 333
Data Privaes:s ss seus ss gown se wom ss 333
PRIVAGY, MOLICE «sues 2 w avin w semecwns w vues a 333
Image recording..............00-000- 333
DatainieMmories:: < + sen x = wees sp eee eas 333
Transmitted information.............. 335
Accessories and technical
OMAMGES. « & cicrees 5 2 sn. 6 a snore 0 soe wo 338
Warranty... . 0. ee eee cece 338
Audi Literature Shop..............--- 338
Driving in other countries............. 338
Maintenance, repairs, and technical
modifications. ........ 0... cee eee eee 338
Accessories and parts.............0-. 340
Reporting Safety Defects.............. 340
Declaration of compliance for
telecommunications equipment and
electronic systeMS........0 cece ee eeee 341
Teennical datas: ¢ «ox. is meen ss ees 343
Identification data................ 00% 343
Vehicle data... 2... . ee eee eee eee ee 343
TAA Sis scence: oo cesses 2 v wee © o omen © 2 ove 345
Page 10 of 362
![AUDI A8 2021 Owners Manual Quick access
Brake system
=> page 120, > page 122,
=> page 283
Lane departure warning
=> page 177,
Emergency assist
Brake system => page 186
=> page 120, > page 122,
=> page 283
Audi pre AUDI A8 2021 Owners Manual Quick access
Brake system
=> page 120, > page 122,
=> page 283
Lane departure warning
=> page 177,
Emergency assist
Brake system => page 186
=> page 120, > page 122,
=> page 283
Audi pre](/img/6/57605/w960_57605-9.png)
Quick access
Brake system
=> page 120, > page 122,
=> page 283
Lane departure warning
=> page 177,
Emergency assist
Brake system => page 186
=> page 120, > page 122,
=> page 283
Audi pre sense
=> page 179,
Intersection assist
=>page 185
Steering
=>page 127
Steering lock Yellow indicator lights
= page 127 Central indicator light
Air suspension > page 7
= page 126 Safety systems
Electrical system => page 85
=> page 284
Engine oil level (MIN)
=> page 278
Transmission
=>page 112
Drive system
=>page 117
Cooling system
> page 281
Engine oil pressure
=> page 278
Cooling system
=> page 281
Hood
=> page 276
Drive system
=>page 117
Vehicle sound
Charging system => page 117
= page 137 Engine start system
Loose wheel warning => page 108
=> page 304 Keys
Night vision assist => page 108
=> page 160 Electromechanical parking brake
Night vision assist => page 122
=> page 160 Brake system
Distance warning => page 120
=>page 175 Electronic Stabilization Control
(ESC)
=> page 129
Steering intervention request
=>page 170
Electronic Stabilization Control
(ESC)
=>page 129
Safe start monitor
=> page 173,
Driver intervention request
=> page 174 Electronic Stabilization Control
(ESC)
=> page 130
Anti-lock braking system (ABS)
=> page 130 >
Adaptive cruise assist
=> page 167
Page 11 of 362
![AUDI A8 2021 Owners Manual 4N0012721BF
Quick access
Anti-lock braking system (ABS)
=> page 130
Steering
=>page 127
Steering lock
=>page 127
All wheel drive
=>page 129
Suspension control
=>page 126
Air sus AUDI A8 2021 Owners Manual 4N0012721BF
Quick access
Anti-lock braking system (ABS)
=> page 130
Steering
=>page 127
Steering lock
=>page 127
All wheel drive
=>page 129
Suspension control
=>page 126
Air sus](/img/6/57605/w960_57605-10.png)
4N0012721BF
Quick access
Anti-lock braking system (ABS)
=> page 130
Steering
=>page 127
Steering lock
=>page 127
All wheel drive
=>page 129
Suspension control
=>page 126
Air suspension
=> page 126
Engine speed limitation
>page 14
Tank system
=> page 270
Tank system/high-voltage system
=> page 270
Electrical system
> page 284
Engine oil level (MIN)
> page 278
Engine oil level (MAX)
=> page 278
Engine oil sensor
> page 278
Malfunction Indicator Lamp (MIL)
=> page 274,
Engine warm-up request
> page 278
Washer fluid level
=> page 287
Windshield wipers
=> page 68
High-voltage battery range
=> page 137
Parking systems
=> page 190
Park assist plus
=> page 202
Maneuver assist
=> page 208
Tire pressure
=> page 307
Tire pressure
=> page 307
Loose wheel warning
=> page 304
Bulb failure indicator
=> page 62
Adaptive light
=> page 62
Light/rain sensor
=> page 62, > page 68
Door lock
=> page 43
Battery in vehicle key
=> page 47
Night vision assist
=> page 161
Intersection assist
=> page 185
Side assist
=> page 183;
Exit warning
=> page 184
Rear cross-traffic assist
=>page 195
Adaptive cruise assist
=>page 175
Steering intervention request
=>page 170, > page 177
Lane departure warning
=> page 178
Distance warning
=>page 175
Audi pre sense
=> page 182
Emergency assist
=> page 186
Emergency call function
=> page 228
Page 16 of 362
![AUDI A8 2021 Owners Manual Instrument cluster
Reducing the display
Depending on the vehicle equipment, you can
hide the central area in the instrument cluster.
> Select on the instrument cluster: vehicle func-
tions tab AUDI A8 2021 Owners Manual Instrument cluster
Reducing the display
Depending on the vehicle equipment, you can
hide the central area in the instrument cluster.
> Select on the instrument cluster: vehicle func-
tions tab](/img/6/57605/w960_57605-15.png)
Instrument cluster
Reducing the display
Depending on the vehicle equipment, you can
hide the central area in the instrument cluster.
> Select on the instrument cluster: vehicle func-
tions tab > E] button > Reduced display.
Coolant temperature
display
Applies to: vehicles with a coolant temperature indicator
The coolant temperature display @ > page 12
only functions when the ignition is switched on.
To reduce the risk of engine damage, please ob-
serve the following notes about the temperature
ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem-
perature yet. Avoid high engine speeds, full accel-
eration, and heavy engine loads.
Normal range
The engine has reached its operating tempera-
ture once the LEDs up to the center of the gauge
turn on. If the | indicator light in the instru-
ment cluster display turns on, the coolant tem-
perature is too high > page 281.
@) Note
— Auxiliary headlights and other accessories in
front of the air intake impair the cooling ef-
fect of the coolant. This increases the risk of
the engine overheating during high outside
temperatures and heavy engine load.
— The front spoiler also helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over-
heating will increase. See an authorized
Audi dealer or authorized Audi Service Fa-
cility for assistance.
Tachometer
The tachometer (@) 9 page 12 displays the engine
speed in revolutions per minute (RPM). The be-
ginning of the red zone in the tachometer indi-
14
cates the maximum permissible engine speed for
all gears once the engine has been broken in. Be-
fore reaching the red zone, you should shift into
the next higher gear, select the "D" or "S" selec-
tor lever position, or remove your foot from the
accelerator pedal.
Displaying the tachometer
Applies to: vehicles with plug-in hybrid drive
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit > Left dial > Tachometer or Com-
bined.
Engine speed limitation
If the Bw indicator light turns on, the engine will
be automatically limited to the RPM displayed in
the instrument cluster. This will protect the en-
gine components, for example during a cold start
or from overheating.
The engine speed limitation is deactivated if you
release the accelerator pedal while the engine is
at normal operating temperature.
If the engine speed limitation was activated by
an engine control malfunction, the indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for exam-
ple when downshifting. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately to have the malfunction corrected.
C) Note
The needle in the tachometer may only be in
the red area of the gauge for a short period of
time before there is a risk of damaging the
engine. The location where the red zone be-
gins varies depending on the engine.
Page 17 of 362
![AUDI A8 2021 Owners Manual 4N0012721BF
Instrument cluster
Power meter
Applies to: vehicles with plug-in hybrid drive
RAZ-0575,
8
©
Fig. 6 Instrument cluster: power meter
Displaying the pow AUDI A8 2021 Owners Manual 4N0012721BF
Instrument cluster
Power meter
Applies to: vehicles with plug-in hybrid drive
RAZ-0575,
8
©
Fig. 6 Instrument cluster: power meter
Displaying the pow](/img/6/57605/w960_57605-16.png)
4N0012721BF
Instrument cluster
Power meter
Applies to: vehicles with plug-in hybrid drive
RAZ-0575,
8
©
Fig. 6 Instrument cluster: power meter
Displaying the power meter
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit > Left dial > Power meter or Com-
bined.
The power meter @) > page 12 gives feedback
about the usage capacity of the drive system. The
power meter needle displays the current usage
capacity. A colored border indicates how much
the drive system can currently be utilized. The
colored borders may vary depending on the se-
lected driving program and the electric power
currently available.
Depending on the vehicle equipment, the power
meter displays the following driving statuses:
@ Drive system switched off
@ Vehicle recovering electrical energy
@® Drive system switched on
@) Vehicle is driving with the electric
motor (green)
© Vehicle is driving with the electric
motor, the combustion engine can
switch on automatically (green
dash)
© Vehicle is driving with the combus-
tion engine (orange)
@ Vehicle is driving with maximum
power from the electric motor and
combustion engine for a brief peri-
od of time
Odometer
The trip odometer and odometer are displayed in
the status bar G) > page 12.
The trip odometer shows the distance driven
since it was last reset. It can be used to measure
short distances. The odometer shows the total
distance that the vehicle has been driven.
Resetting the trip odometer
> Select on the instrument cluster: vehicle func-
tions tab > I button > Reset mi.
@) Tips
Distances are displayed in mi (miles) or km
(kilometers).
Outside temperature
display
The outside temperature is displayed in the sta-
tus bar @) > page 12.
If your vehicle is stationary or if you are driving at
very low speeds, the temperature displayed in
the instrument cluster may be slightly higher
than the actual temperature outside due to heat
radiating from the engine.
At temperatures below 41 °F (+5 °C), a snowflake
symbol appears in front of the temperature dis-
play > A.
Z\ WARNING
Do not assume the roads are free of ice based
on the outside temperature display. Be aware
that there may be ice on roads even when the
outside temperature is around 41 °F (+5 °C)
and that ice can increase the risk of accidents.
Engine oil temperature
indicator
Depending on the vehicle equipment, the engine
oil temperature %7 may be indicated by a bar in
the instrument cluster.
> Open the vehicle functions tab and switch to
the enhanced view > page 13.
15
Page 18 of 362
![AUDI A8 2021 Owners Manual Instrument cluster
When engine oil temperatures are low, the dis-
play --- °F (--- °C) appears in the instrument clus-
ter. The engine has reached its operating temper-
ature when the engine AUDI A8 2021 Owners Manual Instrument cluster
When engine oil temperatures are low, the dis-
play --- °F (--- °C) appears in the instrument clus-
ter. The engine has reached its operating temper-
ature when the engine](/img/6/57605/w960_57605-17.png)
Instrument cluster
When engine oil temperatures are low, the dis-
play --- °F (--- °C) appears in the instrument clus-
ter. The engine has reached its operating temper-
ature when the engine oil temperature is be-
tween 176 °F (80 °C) and 248 °F (120 °C) under
normal driving conditions. The engine oil temper-
ature may be higher if there is heavy engine load
and high temperatures outside. This is not a
cause for concern as long as the B or 2 indica-
tor lights do not turn on.
Boost indicator
Applies to: vehicles with boost indicator
Depending on vehicle equipment, the current en-
gine load (meaning the current boost pressure)
may be indicated by a bar in the instrument clus-
ter.
> Open the vehicle functions tab and switch to
the enhanced view > page 13.
Vehicle functions
The trip computer is displayed in the first tab of
the driver information system. Additional vehicle
functions can be accessed depending on the vehi-
cle equipment.
> Press the [=] button on the multifunction steer-
ing wheel.
— Trip computer > page 16
— Reduced display > page 14
— Reset trip odometer > page 15
— Energy flow display > page 115
—Lap times > page 158
— Lap statistics > page 159
On-board computer
Resetting values to zero
Requirement: the Consumption, Short-term
memory, or Long-term memory display must be
selected.
> To reset the values in one of the memories to
zero, press and hold the left thumbwheel on
16
the multifunction steering wheel for one sec-
ond, or
> Select on the instrument cluster: vehicle func-
tions tab > EI button > Reset mi.
Depending on the vehicle equipment, you can call
up the following displays in the on-board com-
puter one at a time by turning the left thumb-
wheel on the multifunction steering wheel:
— Time and date > page 263
— Plug-in hybrid drive: range display
— Average consumption > page 16
— Short-term memory overview
— Long-term memory overview
— Energy consumers > page 16
— Driver assistance
— Traffic sign recognition and traffic light infor-
mation
Short-term memory and long-term memory
The short-term memory collects driving informa-
tion from the time the ignition is switched on un-
til it is switched off. If you continue driving within
two hours after switching the ignition off, the
new values will be included when calculating the
current trip information.
Unlike the short-term memory, the long-term
memory is not erased automatically. You can se-
lect the time period for evaluating trip informa-
tion yourself.
Average consumption
The current consumption can be shown using a
bar graph. The average consumption stored in
the short-term memory is also displayed. If the
bar is green, your vehicle is saving energy (for ex-
ample, using recuperation).
Energy consumers
The Energy consumers view lists other equip-
ment that is currently affecting fuel consump-
tion. The display shows up to three equipment
items. The equipment using the most power is
listed first. If more than three items using power
are switched on, the equipment that is currently
using the most power is displayed. A gauge also
shows the current total consumption of all other
equipment.
Page 107 of 362
![AUDI A8 2021 Owners Manual 4N0012721BF
Warm and cold
@) Tips
— Make sure the time and date match in the
system settings so that the timer can func-
tion correctly > page 263.
— The auxiliary climate control can als AUDI A8 2021 Owners Manual 4N0012721BF
Warm and cold
@) Tips
— Make sure the time and date match in the
system settings so that the timer can func-
tion correctly > page 263.
— The auxiliary climate control can als](/img/6/57605/w960_57605-106.png)
4N0012721BF
Warm and cold
@) Tips
— Make sure the time and date match in the
system settings so that the timer can func-
tion correctly > page 263.
— The auxiliary climate control can also be
switched on and off immediately when a
timer is set.
— You can operate the climate control in the
vehicle interior when the high-voltage bat-
tery is charging using the charging timer
= page 136. The climate control output de-
pends on the power supply capacity.
Additional settings
Applies to: vehicles with auxiliary climate control
> Applies to MMI: Select on the home screen: VE-
HICLE > Air conditioning > F > <2.
Start A/C after unlocking
If this function is activated, the climate control
will continue to run for five minutes after the ve-
hicle has been unlocked.
Comfort aux. A/C
Applies to: vehicles with comfort auxiliary climate control
You can set if the steering wheel heating* and
seat heating” or seat ventilation* should also be
automatically activated with auxiliary climate
control. You can select the respective zones.
Window and mirror heating*
Applies to: vehicles with comfort auxiliary climate control
You can set if the rear window and mirrors should
also be heated during auxiliary climate control.
Messages
Applies to: vehicles with auxiliary climate control
2— There is a malfunction in the auxiliary air
conditioning.
If this message appears, there is a system mal-
function. Drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired.
Fluids in the A/C system
Refrigerant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant used in the vehicle’s A/C system. The stick-
er is located in the front section of the engine
compartment or at the front or back of the hood.
Symbol | Meaning
Warning: the A/C system must only
be serviced by qualified technicians. A
Refrigerant type
wt
ot
Lubricant type
Refer to the service information
(only available for authorized Audi
dealers or authorized Audi Service
Facilities)
Y
The A/C system must only be serv-
iced by qualified technicians.
Flammable refrigerant
Se
Be
Make sure all components are dis-
posed of correctly and never install
components in the vehicle that have
been removed from old vehicles or
a
taken from recycling.
Lubricant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant oil used in the vehicle’s A/C system. For the
refrigerant oil quantity, refer to the Technical Da-
ta > page 344.
ZX WARNING
To ensure secure and safe operation, the A/C
system must only be serviced by qualified
technicians and certified technicians (SAE
standard J2845).
@) Tips
— Never repair the A/C system evaporator with
components from old vehicles or from recy-
cling.
105
>
Page 122 of 362
![AUDI A8 2021 Owners Manual Driving
— The braking force generated by the pressed
brake pedal is greater than the braking force
that
would be initiated by the system
— The ESC, the brake system, or the vehicle elec-
AUDI A8 2021 Owners Manual Driving
— The braking force generated by the pressed
brake pedal is greater than the braking force
that
would be initiated by the system
— The ESC, the brake system, or the vehicle elec-](/img/6/57605/w960_57605-121.png)
Driving
— The braking force generated by the pressed
brake pedal is greater than the braking force
that
would be initiated by the system
— The ESC, the brake system, or the vehicle elec-
trical system is not functioning
ZA WARNING
— Only apply the brakes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en-
danger other road users and increase the
risk of an accident.
— Due to the risk of injury, only have an au-
thorized Audi dealer or authorized Audi
Service Facility work on the brake system.
Incorrect repairs could impair the function.
— Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
— During automatic braking maneuvers, the
brake pedal may move downward automati-
cally. To reduce the risk of injury, do not
place your foot under the brake pedal.
@) Note
— Never let the brakes “rub” by pressing the
pedal lightly when braking is not actually
necessary. This can cause the brakes to over-
heat and increases braking distance and
causes wear.
— Observe the important information for driv-
ing downhill > page 122. This especially ap-
plies when towing a trailer.
G@) Tips
— If you retrofit your vehicle with a front spoil-
er, wheel covers or similar items, make sure
that the air flow to the brakes is not ob-
structed. Otherwise the brake system can
overheat.
— Also refer to the information about brake
fluid > page 283.
Messages
GG i @ Brakes: malfunction! Stop vehicle
safely
120
There is a malfunction in the brake system. If
[S/ Bana B also turn on, there is a malfunc-
tion in the ABS, ESC, and braking distribution. If
the brake booster is not working, you have to use
much more force when braking the vehicle.
Do not continue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance. Read and follow the other safety pre-
cautions > A\.
fie 7 © Brake pads: wear limit reached. You
can continue driving. Please contact Service
The brake pads are worn. Drive to an authorized
Audi dealer or authorized Audi Service Facility as
soon as possible to have the malfunction correct-
ed.
Brake booster: limited functionality. You can
continue driving. Please contact Service
There is a brake booster malfunction. The brake
booster is available, but its effectiveness is re-
duced. The braking performance may be different
compared to the usual performance. Drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
Brake booster: deactivated. See owner's manual
The brake booster remains active for a brief peri-
od of time after switching off the ignition. Secure
the vehicle against rolling > page 108.
Other indicator lights
When you switch the ignition on, the GG / @®
indicator light turns on briefly to check the func-
tion. If the indicator light does not turn on, there
is a system malfunction.
1f Ba / @ stays on, there is a malfunction in
the brake system.
@- A high load was placed on the brakes from
driving downhill for a long period of time. Follow
the instructions in the message to utilize the en-
gine braking effect and to relieve the brakes.
ZA WARNING
If a malfunction occurs in the ABS, ESC, and
braking distribution, interventions that >
Page 131 of 362
![AUDI A8 2021 Owners Manual 4N0012721BF
Driving dynamic
on curves. The vehicle is very responsive to steer-
ing. The settings depend on the selected Audi
drive select* mode.
Messages
t-3} Sport differential: malfunction AUDI A8 2021 Owners Manual 4N0012721BF
Driving dynamic
on curves. The vehicle is very responsive to steer-
ing. The settings depend on the selected Audi
drive select* mode.
Messages
t-3} Sport differential: malfunction](/img/6/57605/w960_57605-130.png)
4N0012721BF
Driving dynamic
on curves. The vehicle is very responsive to steer-
ing. The settings depend on the selected Audi
drive select* mode.
Messages
t-3} Sport differential: malfunction! Please con-
tact Service
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
r3] Sport differential: temperature too high.
Please adapt driving style
The transmission temperature has increased sig-
nificantly due to the sporty driving manner. Drive
in a less sporty manner until the temperature re-
turns to the normal range and the indicator light
switches of.
Z\ WARNING
Contact an authorized Audi dealer or author-
ized Audi Service Facility if the sport differen-
tial is faulty or malfunctioning. The repair
must be performed by trained personnel us-
ing
the correct oil in order to ensure safety.
Electronic Stabilization
Control
Electronic Stabilization Control (ESC) supports
driver safety. It reduces the risk of slipping and
improves driving stability. ESC detects critical sit-
uations, such as if the vehicle is oversteering or
understeering, or if the wheels are spinning.
The brakes are applied or the engine torque is re-
duced in order to stabilize the vehicle.
The following stabilization functions are integrat-
ed into the ESC, among others:
Anti-lock braking system (ABS)
ABS prevents the wheels from locking when brak-
ing. The vehicle can still be steered even during
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal.
A pulsing in the brake pedal indicates that the
system is acting to stabilize the vehicle.
Anti-Slip Regulation (ASR)
ASR reduces drive power when the wheels begin
spinning and adapts the power to the road condi-
tions. This will increase the driving stability.
Electronic Differential Lock (EDL)
The EDL applies the brakes to wheels that are
slipping and transfers the drive power to the oth-
er wheels. This function is not available at higher
speeds.
In extreme cases, EDL automatically switches off
to keep the brake on the braked wheel from over-
heating. The vehicle is still functioning correctly.
EDL will switch on again automatically when con-
ditions have returned to normal.
Selective wheel torque control
Selective wheel torque control is used when driv-
ing on curves. Braking is targeted toward the
wheels on the inside of the curve as needed. This
allows more precise driving in curves.
Power steering
The ESC can also support vehicle stability
through steering.
ZA\ WARNING
—The ESC and its integrated systems cannot
overcome the limits imposed by natural
physical laws. This is especially important on
slippery or wet roads. If the systems begin
acting to stabilize your vehicle, you should
immediately alter your speed to match the
road and traffic conditions. Do not let the in-
creased safety provided tempt you into tak-
ing risks. This could increase your risk of a
collision.
— Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when driv-
ing too close to objects ahead. There is still
a risk of accidents because the ESC and its
integrated systems cannot always prevent
collisions.
129