ABS 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 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

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

4N0012721BF
Instrument cluster

Operating The following tabs may be available, depending
on vehicle equipment:

First tab Vehicle functions > page 16

Second tab | Driver messages (this is only dis-
played if at least one indicator -5QPM
ce light/message is being displayed)
12/05/2017 Third tab Night vision assist (this is only dis-
played if the night vision assist
has been activated) > page 159
Fourth tab |Radio > page 242
Media > page 253
Fifth tab Telephone > page 215
Sixth tab Navigation > page 230


Fig. 3 Instrument cluster: driver information system


RAH-9206|


Adjusting the display


=I eR S| >| nN x ec
Fig. 4 Left side of multifunction steering wheel
Information is organized within various tabs @)
in the instrument cluster. The tab contents are
displayed in the central area (2).

i Bad P Fig. 5 Upper display: adjusting the display
Requirement: the ignition must be switched on.
Selecting a tab Switching the view
> Press the button @) repeatedly until the
desired tab is selected.
> Press the VIEW button to switch between the
default view @ and the enhanced view (2).
Returning to functions at higher levels Adjusting the layout
> Press the *> button ©) Depending on the vehicle equipment, various lay-
outs may be available.
Opening and closing the menu
P 9 9 > Applies to: MMI: Select on the home screen:
> Press the [=] button ©). SETTINGS > Display & brightness > Audi virtu-
al cockpit. 5 firmi fi ‘
Selecting arid eantirming’s function > To adjust the desired layout, press @).
Requirement: a menu or list must be displayed.
Adjusting the additional display
> To select a function, turn the left thumbwheel , ; ; ;
@ to the desired function. Depending on the vehicle equipment, the addi-
» To confirm a selection, press the left thumb- tional displays that can be selected may vary.
wheel (2). >» Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit > Configure.
> Press the VIEW button @). > Select the desired additional display.
Switching the view
13

Sitting correctly and safely


be thrown through the vehicle interior dur-
ing sudden braking maneuvers or an acci-
dent.
Correct positioning for children
Always secure children in a child safety seat de-
signed for the body size, weight, and age of the
child.

You can secure child safety seats in your vehicle
using the lower LATCH anchors or the safety
belts. You can also secure child safety seats to
the top tether anchor. Depending on the child
safety seat, it may also be necessary to secure it
to the top tether anchor. In Canada, securing for-
ward-facing child safety seats to the top tether
anchors is required by law.
Always transport children in the rear seats
Accident statistics show that children that are se-
cured correctly in the rear seats are safer than in
front seats. Always transport children in suitable
child safety seats secured on the rear seats.
In exceptional circumstances: transporting
children in the front passenger's seat
If exceptional circumstances require the child
safety seat to be placed on the front passenger's
seat, then the front passenger's airbag must be
deactivated. Please note the important informa-
tion for this > page 86, Advanced airbag system.
If you must secure a forward-facing child safety
seat, move the front passenger's seat as far back
as possible so that it is as far as possible from the
front passenger's airbag. While doing this, make
sure the seat can be adjusted all the way.
Only switch to a larger child safety seat when
absolutely necessary
Switch to a larger child safety seat only when ab-
solutely necessary. Secure your child using a safe-
ty belt without a child safety seat only if all of the
following statements are true:
—The child is large enough to sit upright in the
seat
—The child is able to sit with his or her back rest-
ing completely on the seat backrest
90
— The child is able to sit with his or her knees
bent over the edge of the seat surface
—The child is able to sit with both of his or her
feet completely touching the floor in the foot-
well
—The lap portion of the safety belt lies flat and
securely over the hip area and never over the
stomach
—The shoulder portion of the safety belt lies flat
and securely over the center of the shoulder
and the chest, and never under the arm, behind
the back, or over the neck or face.
—The child is able to maintain this seating posi-
tion throughout the entire trip
Read and follow the important information and
warnings regarding the correct use of safety belts
=> page 80.
Gi) Tips
— Child safety seats can also be secured to
seats with side airbags. In the event of an
accident, children can also be protected by
the side airbags if the child is correctly se-
cured in a suitable child safety seat that is
attached correctly.
— The lower LATCH anchors as well as the
safety belt may be required to correctly in-
stall some child safety seats. Using both at
the same time is permitted, provided that
the fastening systems or safety belts do not
impair those in an adjacent seating position.
— All child safety seats are constructed so that
they can be secured using the lap safety belt
in the vehicle.
— Child safety seats with a load leg can only
be secured to the outer rear seats and to the
front passenger's seat.

4N0012721BF
Driving

This message appears when specific conditions
are not met during a Stop phase. The Start/Stop
system will not be able to restart the engine. The
engine must be started with the
START ENGINE STOP] button.


Vehicle starting system: malfunction! Please
contact Service
There is a malfunction in the Start/Stop system.
Drive the vehicle to an authorized Audi dealer or
authorized Service Facility as soon as possible to
have the malfunction corrected.
Brakes
General information
You can apply the vehicle's brakes using the brake
pedal.
Operating noise
Noises may occur when braking depending on the
speed, braking force, and outside conditions such
as temperature and humidity.
Braking effect
The response time from the brakes depends on
the weather and environmental conditions. To
ensure the optimal braking effect, the brake sys-
tem is cleaned at regular intervals. This is done
by applying the brake pads to the brake rotors for
a short period of time when driving at high
speeds when the windshield wipers are switched
on.
If the brake system becomes damp, for example
after driving in heavy rain, the braking effect may
be delayed. Other factors that could temporarily
increase the response time of the brakes include:
— Wet conditions
— Low temperatures, ice, and snow
— Roads covered in salt
— Dirty brake pads
Corrosion
Corrosion may form on the brake rotors if there is
no heavy braking, if the vehicle is not driven for
long periods of time, or if the vehicle is not driv-
en
frequently or for long distances. In this case,
braking heavily several times while driving at
high speeds can clean the brake rotors > A\.
Applies to: vehicles with plug-in hybrid drive: Se-
lect the “N” gear so that recuperation is not used
for braking.
Brake pads
New brake pads do not achieve their full braking
effect during the first 250 miles (400 km). They
must be “broken in” first. However, you can com-
pensate for the slightly reduced braking force by
pressing firmly on the brake pedal. Avoid heavy
braking during the break-in period.
Applies to: vehicles with plug-in hybrid drive: Be-
cause recuperation is also used for braking, the
break-in period for new brake pads is 500 miles
(800 km).
Brake pad wear depends largely on the way the
vehicle is driven and on operating conditions.
Brake pad wear increases when driving frequently
in the city or short distances or when using a very
sporty driving style.
Ceramic brakes
Applies to: vehicles with ceramic brakes
Ceramic brakes provide excellent deceleration
rates.
The break-in period for new ceramic brakes may
be significantly longer than for standard brake
rotors. Due to the properties of the material,
they may cause noises at lower speeds. Ceramic
brakes also absorb more moisture in wet condi-
tions. Therefore, there will temporarily be less
braking force than when the brakes are dry. You
can compensate for this by pressing the brake
pedal harder.
Automatic post-collision braking system
The automatic post-collision braking system can
help to reduce the risk of sliding and of addition-
al collisions after an accident. If the airbag con-
trol module detects a collision, the vehicle is
braked by the ESC.
The vehicle does not brake automatically if one of
the following occurs:
— The driver presses the accelerator pedal, or >
119

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 >

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

Driving dynamic


— Accelerate carefully when driving on
smooth, slippery surfaces such as ice and
snow. The drive wheels can spin even when
these control systems are installed and this
can affect driving stability and increase the
risk of a collision.

@ Tips
— The ABS and ASR only function correctly
when all four wheels have a similar wear
condition. Different tire sizes can lead toa
reduction in engine power.
— You may hear noises when the systems de-
scribed are working.
The So button (or #, depending on the model)
for controlling the ESC is located in the center
console, in front of the selector lever. The ESC is
automatically switched on when the ignition is
switched on.
Limiting ESC
In some situations, it may make sense to limit
the stabilizing function of the ESC so that the
wheels can spin, for example to rock a vehicle to
free it when it is stuck or to drive with snow
chains. The ESC can also be limited to provide
more sporty driving characteristics with fewer
stabilizing corrective actions.
—To limit the ESC, press the oF button briefly.
The B indicator light will turn on.
— To completely reactivate the ESC stabilization
function, press the button again. The indicator
light turns off.
Switching off ESC
For a more active control of the vehicle where the
stabilizing functions of the ESC cannot intervene,
the ESC can be switched off.
—To switch off the ESC, press and hold the Sor
button for more than three seconds. The B
and ESC OFF| indicator lights turn on.
— To completely reactivate the ESC stabilization
function, press the button again. The indicator
lights turn off.
130
ZA\ WARNING
— When the ESC is switched off or limited,
there will be no vehicle stabilization or it will
be limited. The driving wheels could spin
and the vehicle could swerve, especially on
slick or slippery road surfaces, which in-
creases the risk of an accident.
— Because of the increased risk of an accident,
only drive with the ESC switched off or limit-
ed when it is necessary. Reactivate the ESC
as soon as possible.
(i) Tips
— If the ESC is limited, switched off, or mal-
functioning, systems with an automatic
braking intervention function may not be
fully available.
— If malfunctions occur in other systems or
certain driver assist systems are active, the
ESC must be switched on by the system. The
ESC
may switch on automatically and can-
not be operated with the button.
B Ss / B & Stabilization control (ESC/
ABS): malfunction! See owner's manual

There is a malfunction in the ABS or EDL. This al-
so causes the ESC to malfunction. The brakes still
function with their normal power, but ABS is not
active.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
Other indicator lights
ita blinks while driving, the ESC is actively reg-
ulating. Operating noises may occur. If the indi-
cator light stays on, the ESC has been switched
off due to system needs. The indicator light turns
off when the system is fully functional.

4N0012721BF

High-voltage system

g or attac g the cable
icles with Audi charging system

Applies to:


B4G-0681 Nn?

— Only change cables in a dry environment.
— The Audi charging system may only be used
as a complete unit consisting of the power
cables, the control unit, and the vehicle ca-
ble. Depending on the country, the total
length of the power cable, control panel and
vehicle cable may be restricted, for example
to 24.6 feet (7.5 m) in the USA. Audi recom-



Fig. 106 Control unit: removing and attaching the cable
Requirements:
> The charging process for the high-voltage bat-
tery must be ended > page 135.
> The vehicle charging connector must be re-
moved from the vehicle charging port.
> The power cable must be removed from the
socket.
Loosening the cable
» If necessary, loosen the screw @) using the
screwdriver provided.
> Lift the lever @ all the way up.
> Pull the connector @) out just until you feel re-
sistance.
> Close the lever @ until it is resting on the con-
nector @).
» Remove the connector (2) completely.
Attaching the cable
> Lift the lever @ up slightly.
> Insert the connector (2) into the control unit
just until you feel resistance.
> Lift the lever @ all the way up.
> Insert the connector (2) all the way into the
control unit.
> Close the lever @).
> Tighten the screw @) using the screwdriver pro-
vided.

A WARNING
— Note the warnings for charging > A in
Charging on page 135.
— Before switching a cable, always unplug the
power cable from the socket.

mends using only cables approved by Audi.
Gi) Tips
The power cable with the power connector for
industrial sockets and the Audi charging sys-
tem control unit are designed to work togeth-
er. Changing the power cable to another con-
nector type may reduce the available charging
power of the entire system. Limitations on
the ability to transfer power (current capacity)
depending on the phase and the number of
available phases may affect the available
charging power.


Wall clip
Applies to: vehicles with plug-in hybrid drive and wall mount
clip

RAZ-0638,


Fig. 107 Wall mount clip: securing the Audi charging sys-
tem
Securing the Audi charging system
> First insert the control unit in the bottom tabs
on the wall mount clip and then into the upper
tabs.
> Push the control unit in the direction of the ar-
row toward the rear > fig. 107 and let it lock in-
to place.
> Wrap the excess length of cable around the
charging connector mount @) when you are not
charging the high-voltage battery.
145

>

Additional information

Additional information
Brands and licenses
This manual does not contain any symbols, such
as ® or ™, to identify trademarks or registered
trademarks. However, the absence of these sym-
bols does not constitute a waiver of any rights as-
sociated with these names.
Apple, iPhone, iPod touch, Apple CarPlay, Light-
ning, and iTunes Radio are trademarks of Apple
Inc.
10S is a trademark or, in the USA and other coun-
tries, a registered trademark of Cisco and is used
under license.
Other product and manufacturer names may be
trademarks of their respective owners.
268