2021 AUDI A8 ECU

4N0012721BF
Driver assistance

Driver assistance
Cruise control system
Applies to: vehicles with cruise control system
The cruise control system assists the driver in
maintaining a constant speed above approxi-
mately 15 mph (20 km/h). The system maintains
the desired speed by braking and accelerating.
Switching the system on
Applies to: vehicles with cruise control system


ZA WARNING
— Always pay attention to the traffic around
your vehicle when the cruise control system
is in operation. As the driver, you are always
responsible for controlling your vehicle
speed and the distance between your vehicle
and
other vehicles.
— For safety reasons, cruise control should not
be used in the city, in stop-and-go traffic, on
winding roads, and when road conditions are
poor (such as ice, fog, gravel, heavy rain,
and conditions that could lead to hydroplan-
ing), because this increases the risk of an ac-
cident.
— Switch the cruise control off temporarily
when driving in turning lanes, highway exits,
or in construction zones.
—To reduce the risk of an accident, you should
only resume the stored speed if it is suitable
for the current traffic conditions.
BFV-0220



() Note
— Conventional drive system:Before driving
downhill a long distance on a steep hill, de-
crease your speed and select a lower gear.
This makes use of the engine braking effect
and reduces the load placed on the brakes.
— Plug-in hybrid drive: Before driving downhill
a long distance on a steep hill, decrease
your speed and use the recuperation braking
effect > page 114. This reduces the load on
the brakes.
@ Tips
The brake lights turn on when the brakes are
applied automatically.


Fig. 116 Operating lever: switching the system on
Requirement: the ignition must be switched on.
> To switch the system on, pull the lever toward
you to position ©.
The Gia or i$) indicator light and the corre-
sponding message will appear in the instrument
cluster.

ZA\ WARNING
If the brakes are malfunctioning (for example,
overheating) while the cruise control system
is switched on, the regulating functions may


shut off automatically.


Preselecting or activating a cruise con
speed
Applies to: vehicles with cruise control system
When the vehicle is stationary, you can preselect
the cruise control speed or activate the speed
while driving.
Requirement: the system must be switched on.
> To preselect a cruise control speed when the ve-
hicle is stationary, tap the lever toward @)/G)
=> page 163, fig. 116.
> To activate the cruise control speed, pull the
lever
toward position @ while driving.
> To set the current driving speed as the cruise
control speed, press the button @) on the lever.
The active cruise control speed is indicated with
the Gg or kl indicator light in the instrument
cluster.
163
>

4N0012721BF
Driver assistance

Situation symbols
Depending on vehicle equipment, the following
symbols may be shown. The symbols indicate the
situation to which the efficiency assist is respond-
ing.
Some symbols only appear if Predictive messag-
es are switched on, and some symbols only ap-
pear if Predictive control is switched on and
adaptive cruise assist* is active.


Description
Slow down
(predictive messages only)
Speed limit
(example)
Speed limit removed
Exit ahead
Intersection ahead
Traffic circle ahead
(predictive control only) If the indica-
tor light turns on in green and red, it
is indicating that there is a difference
between the speed limit and the set
speed.


ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
—Incertain situations, the recuperation may
brake proactively. However, the recuperation
braking effect is limited. Always be ready to

brake to reduce the risk of an accident.

@ Tips
— The functions depend on the navigation da-
ta* being up-to-date and correct identifica-
tion by the traffic sign recognition*.
— The system only detects traffic signs that
specify a speed limit.
— The display in the instrument cluster is
based on the units of measurement used for
speed in the country where the vehicle is be-
ing operated. As a result, a display of 50 in
the instrument cluster can mean either mph
or km/h, depending on the country.
— Except for the road network, which is re-
corded in the navigation system’s map infor-
mation, certain functions may not be availa-
ble.
Predictive messages
Applies to: vehicles with efficiency assist
The symbol BS appears in the instrument cluster
display if efficiency assist recommends removing
your foot from the accelerator pedal.
Additional symbols that indicate the situation to
which the efficiency assist is reacting are shown
in the Driver assistance display > page 165.
Requirements
— The cruise control system* or the adaptive
cruise assist* controls must not be active.
— The vehicle speed must be at least 20 mph
(30 km/h).
— The remaining distance until the situation is
reached must be large enough to allow the sys-
tem to react to the situation.
Switching Predictive messages on or off
Applies to: MMI: Select on the home screen: VE-
HICLE > Charging & Efficiency > Efficiency assist
> Predictive messages.

ZA\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— Pay attention to traffic and the area around
your vehicle when efficiency assist is switch-
ed on. The driver is always responsible for
assessing the traffic situation.
G) Tips
— The traffic signs on the road always take pri-
ority over the display. The driver is always
responsible for adhering to the regulations

165

Driver assistance

may only be able to avoid a collision by swerving
or braking strongly.
Automatic braking force increase
If there is an impending collision and you are not
applying the brakes enough, the braking force
may be increased, depending on the situation.
Automatic braking
If you do not react to the acute warning, the sys-
tem may apply the brakes with strong braking
force within the limits of the system in order to
reduce the speed of impact in the event of a colli-
sion.
If the brakes were applied until the vehicle stop-
ped, © Please take over! will appear in the in-
strument cluster and you must take over control
of the vehicle.

ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— Audi pre sense front cannot overcome natu-
ral physical laws. It is a system designed to
assist and it cannot prevent a collision in ev-
ery circumstance. The driver must always in-
tervene. The driver is always responsible for
braking at the correct time. Do not let the
increased safety provided tempt you into
taking risks. This could increase your risk of
a collision.
— Audi pre sense front does not react to cer-
tain objects, such as animals, crossing or on-
coming vehicles, bars, railings, or railcars.
— Audi pre sense front may be limited or un-
available when driving in curves.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Store objects securely while

driving.
ners of the vehicle and calculates the probability
of a rear-end collision with the vehicle behind
you.
Audi pre sense preemptive safety measures can
be initiated if the risk of a collision with the vehi-
cle behind you is detected.

ZA\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— Audi pre sense rear does not react to pedes-
trians, animals, crossing objects, and ob-
jects not detected as vehicles.
G) Tips
Audi pre sense rear functions may also switch
off if there is a malfunction in the side assist
system.
Audi pre sense side
Applies to: vehicles with Audi pre sense side

Within the limits of the system, Audi pre sense
can warn about impending collisions with cross-
traffic and vehicles approaching from the side,
and trigger Audi pre sense preemptive safety
measures.
The system uses additional sensors in the front
and rear areas and is active at speeds up to ap-
proximately 35 mph (60 km/h).
Depending on the situation, the suspension may
be lifted* on the side facing the accident.

Z\, WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— Audi pre sense side does not react to pedes-
trians, animals, and objects not detected as

vehicles.

NU Cel eat
Applies to: vehicles with Audi pre sense rear
Within the limits of the system, Audi pre sense
rear uses data from radar sensors at the rear cor-
180
@) Tips
— The suspension lift* only occurs when the
ignition is switched on, the doors and lug-
gage compartment lid are closed, and if the

4N0012721BF
Telephone

Telephone
Introduction
Applies to: vehicles with telephone
You can operate various telephone functions easi-
ly through the MMI in your vehicle.
Depending on the country and the vehicle equip-
ment, the following options may be available:
— Connecting a cell phone with Bluetooth
— Using two telephones
— Using the Audi phone box
— Using the Rear Seat Remote

Z\ WARNING
— Medical experts warn that mobile devices
can interfere with the function of pacemak-
ers. Always maintain a minimum distance of
about 7.9 inches (20 cm) between the mo-
bile device antennas and the pacemaker.
— Do not carry the mobile device in a pocket
directly over the pacemaker when the
phone is switched on.
— Switch the mobile device off immediately
if you suspect it may be interfering with
the pacemaker.
— Do not use the voice recognition system*
= page 34 in emergencies because your
voice may change in stressful situations. The
system may take longer to dial the number
or may not be able to dial it at all. Dial the
emergency number manually.
— Switch your mobile device off in areas where
there is a risk of an explosion. These loca-
tions are not always clearly marked. This
may include gas stations, fuel and chemical
storage facilities or transport vehicles, or lo-
cations where fuel vapors (such as propane
or gasoline vapor in vehicles or buildings),
chemicals or large quantities of dust parti-
cles (such as flour, sawdust or metal) may
be present in the air. This also applies to all
other locations where you would normally
turn your vehicle engine off.
— The demands of traffic require your full at-
tention. Always read the chapter > page 20,
Traffic safety information.


— Observe the safety precautions > page 26,
Rear Seat Remote.
() Note
Read the information about Audi connect, and
be sure to note the connectivity costs section
=> page 222.
G Tips
— The Bluetooth connection range is limited
to inside the vehicle.
—Aselection of supported Bluetooth devices
can be found in the database for tested mo-
bile devices at www.audi.com/bluetooth.


Setup
Connecting a mobile phone via Bluetooth
Applies to: vehicles with telephone
Requirement: the vehicle must be stationary and
the ignition must be switched on. The Bluetooth
settings must be open on your mobile device dur-
ing the connection setup. The mobile device to be
connected must not be actively connected to any
other Bluetooth device. The MMI must only be
connected to one mobile device.
> Enable the Bluetooth function and visibility on
the MMI = page 264 and the mobile phone.
> Applies to: MMI: Select on the home screen:
PHONE.
> Applies to: Rear Seat Remote: Select on the
home screen: SETTINGS > Connect > ©.
> Follow the system instructions. The available
Bluetooth devices will be displayed after sever-
al seconds.
> Press on the desired mobile device in the list of
displayed Bluetooth devices.
> To update the list, press OQ.
A PIN for a secure Bluetooth connection will be
generated.
> Confirm the PIN on your mobile device.
> Follow the system instructions.
> Follow any additional system prompts in the
MMI or on the Rear Seat Remote* and on your
mobile phone. >
209

Telephone

After connecting successfully
The cell phone contacts are automatically loaded
in the MMI. This process can take several mi-
nutes, depending on the number of contacts.
Applies to: vehicles with Rear Seat Remote: To
have contacts and call details displayed only on
the Rear Seat Remote display, activate privacy
mode > page 214/> page 218.
Depending on your cell phone and the connection
type, you can use the following functions in the
MMI:
Handsfree
Requirement: your cell phone must be connected
to the MMI via a Bluetooth Hands Free Profile
(Bluetooth HFP).
You can use the hands-free system. You can make
calls using the antenna on your mobile device.
Sending and receiving messages
See 9 page 219.
G) Tips
— Pay attention to any system prompts dis-
played on your mobile device or the MMI,
for example if the system should connect
automatically in the future. Depending on
the mobile device, you may need to down-
load contacts and confirm access to your
messages separately.
— You can also search for the MMI on your mo-
bile device using the Bluetooth device
search.
— You only have to pair your device one time.
Bluetooth devices that are already paired
automatically connect to the MMI when the
Bluetooth function is switched on, when
they are within range, and when the ignition
is switched on. The last connected mobile
device is given first priority.
— You can manage additional settings for con-
nected mobile devices in the Connected de-
vices menu > page 265.
— When leaving the vehicle, the Bluetooth
connection to the mobile device will auto-
matically disconnect. Depending on your
210
mobile device, phone calls in progress may
be automatically redirected from the MMI
to your mobile device so that you can con-
tinue the call on your phone.
eit aco 1c del
Applies to: vehicles with telephone, and Audi phone box
You can connect two mobile phones to the MMI
at the same time using the Bluetooth HFP, for ex-
ample a business phone and a private phone. You
can be reached in your vehicle through both mo-
bile phones.
Applies to: mobile devices with Bluetooth Mes-
sage Access Profile (MAP): You can send and re-
ceive messages with both mobile devices
=> page 219.
Connecting another mobile device
Requirement: a mobile device must be connected
to the MMI. and displayed in the Rear Seat Re-
mote* if available. The vehicle must be stationary
and the ignition must be switched on. The Blue-
tooth settings must be open on your mobile de-
vice during the connection setup. The mobile de-
vice to be connected must not be actively con-
nected to any other Bluetooth device.
> Enable the Bluetooth function and visibility on
the MMI = page 264 and the mobile phone.
> Applies to: MMI: Select on the home screen:
PHONE > C°, or
> Applies to: MMI: Select on the home screen:
SETTINGS > Connected devices > Telephone 1
or Telephone 2 > New connection.
> Applies to: Rear Seat Remote: Select on the
home screen: SETTINGS > [ > Connect.
> Follow the system instructions. The available
Bluetooth devices will be displayed after sever-
al seconds.
> Press on the desired mobile device in the list of
displayed Bluetooth devices.
> To update the list, press O.
A PIN for a secure Bluetooth connection will be
generated.
> Confirm the PIN on your mobile device.
> Follow the system instructions.

4N0012721BF
Telephone

> Follow any additional system prompts in the
MMI or on the Rear Seat Remote* and on your
mobile phone.
After connecting successfully
See > page 210, After connecting successfully.
Switching between two mobile devices
Requirement: phone 1 and phone 2 must be con-
nected to the MMI. and displayed in the Rear
Seat Remote* if available.
> Applies to: MMI/Rear Seat Remote: Select on
the home screen: PHONE > J.

Read the information about Audi connect, and
be sure to note the connectivity costs section
=> page 222.
Disconnecting a mobile device
Applies to: vehicles with telephone
> To disconnect a Bluetooth device from the MMI,
use the Connected devices menu > page 265.
Using the Audi phone
box

General information
Applies to: vehicles with Audi phone box





Fig. 153 Storage compartment under the center armrest:
Audi phone box with holder* and connections

D_Incertain countries.

RAZ-1106|



Fig. 154 Rear center armrest: Audi phone box with connec-
tions
Depending on vehicle equipment, you may be
able to use the following functions in the front
and in the rear!) with the Audi phone box:
— Make phone calls using the vehicle’s exterior
antenna
— Charge a mobile device using the USB input
— Charge a mobile device wirelessly
— Reminder signal
Limitations
In some situations, the functions of the Audi
phone box may be limited or temporarily unavail-
able. For example, this may happen if
— There is one more than mobile device in the
Audi phone box
— The mobile device is located in a bag or a pro-
tective case
— There are objects between the Audi phone box
and the mobile device
— The mobile device is not positioned in the cen-
ter of the Audi phone box

Loose objects can be thrown around the vehi-
cle interior during sudden driving or braking
maneuvers, which increases the risk of an ac-
cident. Store objects securely while driving.


Applicable to U.S.A.
Operation of the Audi phone box is subject to
the following requirements of the Federal
Communications Commission:
211

4N0012721BF
Audi connect

functions only have limited availability after
switching off the ignition.
— An eSIM card establishes the Internet con-
nection for Audi connect vehicle control
services. The costs for this are included in
the price of Audi connect vehicle control
services. The cell phone network, for exam-
ple, must be available to use these services.
Applies to: vehicles with Audi connect vehicle control
Create a myAudi account by registering in the
myAudi app or at my.audi.com, depending on
your country.
> Set the key user > page 38.
> Install the myAudi app on your mobile device
and log in with your access information.
@) Tips
Some services require you to enter a 4-digit
PIN that you set up during registration.
Settings
Applies to: vehicles with Wi-Fi hotspot
Requirement: the ignition must be switched on.
> Applies to: MMI: Select on the home screen:
SETTINGS > Connection settings > Wi-Fi
Depending on the country and the vehicle equip-
ment, the following functions may be available:
Wi-Fi
When the function is switched on, the MMI's Wi-
Fi hotspot is active and Wi-Fi devices can be con-
nected to the hotspot.
Wi-Fi hotspot settings
The Wi-Fi connection between the MMI and your
Wi-Fi device is encrypted. You can change the fol-
lowing information if needed.
— Access point (SSID): name of the Wi-Fi hot-
spot.

))_ Not available in every market.
— Password: an initial password was set at the
factory in the MMI. Audi recommends changing
the initial password. Only use secure passwords
that conform to the general guidelines for se-
cure passwords. For more information, refer to
reputable and current sources on password se-
curity.
Allow data connection through Wi-Fi
When the function is switched on, mobile devices
can use the Internet connection through the Wi-
Fi hotspot. A data plan is needed to do this.

Z\ WARNING
Always follow the information found in > A\
in General information on page 222.
@) Note
Always follow the information found in >@ in
General information on page 222.
peeve Mo) Elen
Applies to: vehicles with Audi connect

Data plans must be purchased in order to use cer-
tain services >@) in General information on
page 222.
You can purchase data plans at my.audi.com.

ZA\ WARNING
Always follow the information found in > A\
in General information on page 222.
() Note
Always follow the information found in >@ in
General information on page 222.
@) Tips
— Depending on the country, you may be able
to use the myAudi app or my.audi.com.
— Depending on the country, there may be re-
strictions on the use of data plans (such as
mobile phone service providers) when driv-
ing in other countries.

225

Media

Media
General information
There may be different media sources and con-
nections available depending on the vehicle
equipment. For example, you can play media files
using a connected USB drive or connect your mo-
bile devices to the Audi music interface and oper-
ate them through the MMI.
Media and format restrictions: the MMI (includ-
ing the USB storage device connection) was test-
ed with a variety of products and media on the
market. However, there may be cases where indi-
vidual devices or media and audio/video files may
not be recognized, may play only with restric-
tions, or may not play at all.
Restricted functionality: reset the MMI to the
factory default settings if functionality is restrict-
ed > page 264.
Digital Rights Management: please note that
the
audio/video files are subject to copyright pro-
tection.
Files that are protected by DRM and are identi-
fied with the symbol f@ will not play.
Data security: never store important data on
CDs/DVDs or mobile devices. Audi is not responsi-
ble for damaged or lost files and media.
Loading times: the more files/folders/playlists
there are on a storage medium, the longer it will
take to load. To reduce the amount of time it
takes the audio/video files to load, use a storage
medium that only contains audio/video files, and
create subfolders (for example, for each artist or
album).
Additional information: when playing, audio
files are automatically displayed with any addi-
tional information that is stored (such as the ar-
tist, track and album cover). If this information is
not available on the medium, the MMI will revert
to the local Gracenote metadata database or
search online if necessary. See > page 258, On-
line additional data. However, in some cases, the
additional information may not be displayed.
250
@) Note
Read the information about Audi connect, and
be sure to note the connectivity costs section
=@ in General information on page 222.
DVD drive
General information
Applies to: vehicles with a DVD drive
The functionality of individual storage mediums
may be limited due to the variety of blank CDs/
DVDs available and the various capacities. Audio
CDs or video DVDs with copy protection, CDs/
DVDs that do not conform to the standard, and
multisession CDs may have limited playback or
may not play at all. Audi recommends finalizing
the recording process when creating multisession
CDs. Multisession DVDs are not supported.
(1) Note
To reduce the risk of damaging the drive and
data carriers:
— Always store data carriers in a protective
sleeve and do not expose them to direct
sunlight
— Do not use damaged, dirty, or laminated da-
ta carriers
— Do not use single CDs/-DVDs with a 3.1 inch
(8 cm) diameter, non-circular CDs/DVDs
(shaped CDs), cleaning CDs, and protective
rings
— Never force CDs/DVDs into the drive. Discs
are pulled in automatically.
G) Tips
The thermal protection switch stops playback
temporarily when outside temperatures are
too high.