ECU AUDI A8 2020 Repair Manual

4N0012721BD
Audi connect

Access point
The connection is configured automatically based
on the SIM card being used. The following values
can be changed. You can obtain more information
from your cell phone service provider.
— Access Point Name (APN): the access point de-
pends on the cell phone service provider and is
assigned automatically.
— User name: your cell phone service provider as-
signs the user name for your online profile.
— Password: your cell phone service provider as-
signs the password for your online profile.
— Apply settings: saves the changed settings.
— Reset configuration: resets the connection set-
tings.
Data usage counter
Your current data usage is displayed.
— Reset counter: you can reset your usage statis-
tics to zero.
— Warning limit: you can set a warning limit for
your data usage (GB/MB).

Z\ WARNING
Always follow the information found in > A\

in General information on page 216.

@) Note
Always follow the information found in >@ in
General information on page 216.
G) Tips
For more information on roaming charges,
contact your cell phone service provider.
Wi-Fi 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:

))_ Not available in every market.
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.
— Password: a random password was set at the
factory in the MMI. The password can be
changed. The encryption method requires a
password to be at least eight characters long.
Choose a secure password.
— Visible to others: you can switch the visibility
of the Wi-Fi hotspot on or off.

Z\ WARNING
Always follow the information found in > AV
in General information on page 216.
@) Note
Always follow the information found in >@ in
General information on page 216.
Applies to: vehicles with data plans

Requirement: you must have created a myAudi
account at my.audi.com. Your vehicle must be
registered in your myAudi account.
You can purchase data plans at my.audi.com.

ZA\ WARNING
Always follow the information found in > AV
in General information on page 216.
C) Note
Always follow the information found in >@ in
General information on page 216.

221
>

Media

Media
General information
There may be different media drives and connec-
tions available depending on the vehicle equip-
ment. For example, you can play media files us-
ing the SD card reader or connect your mobile de-
vices to the Audi music interface and operate
them through the MMI.
Media and format restrictions: the MMI (includ-
ing the SD card reader and the USB storage de-
vice connection) was tested with a variety of
products and media on the market. However,
there may be cases where individual devices or
media and audio/video files may not be recog-
nized, may play only with restrictions, or may not
play at all.
Restricted functionality: reset the Media to the
factory default settings if functionality is restrict-
ed.
Digital Rights Management: please note that
the audio/video files are subject to copyright pro-
tection.
The media drives do not play files that are pro-
tected by DRM and are identified with the symbol
&.
Data security: never store important data on SD
cards, CDs/DVDs, or mobile devices. Audi is not
responsible 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 storage medium, the MMI
will check the Gracenote metadata database.
However, in some cases, the additional informa-
tion may not be displayed.
250
C@) Note
Read the information about Audi connect, and
be sure to note the connectivity costs section
=>@ in General information on page 216.
SD card reader
The SD card reader is in the storage compartment
under the front center armrest.
Inserting the SD card
> The angled corner of the SD card must face to-
ward the right front side when being inserted.
> Slide the SD card into the card reader slot until
the SD card clicks into place.
The SD card reader is accessed and operated
through the MMI = page 255.
@) Note
— Only use one-piece SD cards. If adapter
cards (SD cards with more than one piece)
are used, the card could fall out of the
adapter when driving because of vibrations.
Individual pieces could then become stuck
in the drive and impair the functionality.
—To reduce the risk of damaging drives and
data carriers, always keep data carriers ina
sleeve and never expose them to direct sun-
light.
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.
C) Note
To reduce the risk of damaging the drive and
data carriers:

Media

> Ejecting all CDs: press and hold the button @)
longer.
> Canceling the loading process: press the but-
ton @) again during the loading process.
Six CDs/DVDs can be loaded into the DVD chang-
er. For information on the properties of support-
ed data mediums, refer to > page 261.
The DVD drive is accessed and operated through
the MMI > page 255.
@) Tips
Always read the chapter > page 250, General
information.
Bluetooth audio player
Applies to: vehicles with Bluetooth audio player
With the Bluetooth audio player, you can play
music wirelessly through the MMI from your
Bluetooth-capable mobile device (such as a cell
phone).
Requirement: the vehicle must be stationary and
the ignition must be switched on. The Bluetooth
settings will open on your mobile device during
the connection setup. The Bluetooth function and
visibility of the MMI = page 267 and mobile de-
vice must be switched on.
Connecting a mobile device
> Applies to: MMI: Select on the home screen:
MEDIA > Source > Connect external device >
New connection. The available Bluetooth devi-
ces will be displayed after several 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, or:
> Enter the PIN for the connection setup on your
mobile device. The time allowed for entering
the PIN is limited to approximately 30 seconds.
After connecting successfully, the mobile device
will be displayed in the Connected devices menu
as a Bluetooth audio player.
Playing media > page 255.
252
G) Tips
— Check for any connection requests on your
Bluetooth device.
— Multiple Bluetooth audio players can be
paired with the MMI, but only one at a time
can be active as a Bluetooth audio player
=> page 268.
— The supported media functions (such as
shuffle, list view, categories, search, op-
tions) depend on the Bluetooth device being
used.
— Note the volume setting on your Bluetooth
device. Audi recommends setting your mo-
bile device to the maximum volume when
using it as a Bluetooth audio player.
—Aselection of supported Bluetooth devices
can be found in the database for tested mo-
bile devices at www.audi.com/bluetooth.
Online media
Applies to: vehicles with Audi connect Infotainment and on-
line media
You can play and operate various online media
services, such as music streaming services, using
the MMI.
Requirement: a supported online media service
must be available in the country where the vehi-
cle is being operated.
Connect online media
> Connect the MMI to the Internet > page 216.
> Switch on the Wi-Fi hotspot in the MMI
=> page 221.
> Applies to: MMI: Select on the home screen:
MEDIA > Source > Connect online media.
> Switch the Wi-Fi function on in your mobile de-
vice and connect it to the MMI Wi-Fi hotspot
=> page 217.
> Install and start the myAudi app on your mo-
bile device.
> Log in to your myAudi account in the myAudi
app and select your vehicle.
Your mobile device must be connected to the
MMI and must be highlighted. When you press
the highlighted device, it will be disconnected. >

Additional settings

> To also delete the key user, select Remove key
user.
> To completely delete a smartphone that is
paired with the Audi smartphone interface, re-
set Audi smartphone interface and Bluetooth.
> Applies to Audi tablet: Select on the home
screen: SETTINGS > secure & reset > Restore to
factory settings.
» Press the RESET TABLET button. The settings
will be reset.
@) Note
Applies to: Audi tablet
Large amounts of data are loaded after the re-
set. Depending on your cell phone plan, re-
ceiving data packages through the Wi-Fi hot-
spot may result in additional charges, particu-
larly when in another country. The use of a
flat rate data plan is highly recommended.
You can obtain more information from your
cell phone service provider.
@) Tips
— Make sure that not only the settings were
deleted but also the stored data, if necessa-
ry. Data on the microSD card in the Audi tab-
let is not deleted.
— The system may restart when the settings
are reset. This may take a few minutes.
Connected devices
(ey atas time liel: (9
Requirement: the vehicle must be stationary and
the ignition must be switched on.
> Applies to: MMI: Select on the home screen:
SETTINGS > Connected devices.
Possible menu items:
— Telephone 1
— Telephone 2
— Audio player
— WLAN hotspot
— Headset
268
myAudi app
This function is available if the myAudi app is in-
stalled on your mobile device and started, and if
the mobile device is connected with the vehicle’s
Wi-Fi hotspot.
Audi smartphone interface
You can connect your smartphone to the MMI
=> page 264.
C) Note
Read the information about Audi connect, and
be sure to note the connectivity costs section
=>page 216.
Connection options
Requirement: the connected devices menu must
be displayed > page 268.
Connecting a device
Requirement: Bluetooth visibility must be acti-
vated in the MMI > page 267 and mobile device.
> Select a menu item, for example Telephone 1.
> To search for and connect your mobile device,
press the New connection button > page 200.
Selecting a connected device
> Select a menu item, for example Telephone 1.
> Select your mobile device from the list of con-
nected devices. The connection will be made.
Disconnecting a connected device
> Select a menu item, for example Telephone 1.
> Press on the connected mobile device. The se-
lected device will be disconnected from the
MMI.
Additional options
Depending on the selected function, additional
options may be available.
> Press and hold a Bluetooth device until the Op-
tions menu is displayed.
>» Select one of the items in the menu.

Checking and Filling


chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
— Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
o Note
When filling fluids, be sure not to add any flu-
ids to the wrong reservoirs. Otherwise severe
malfunctions and engine damage will occur.


@ For the sake of the environment
You should regularly check the ground under
your vehicle in order to detect leaks quickly. If
there are visible spots from oil or other fluids,
bring your vehicle to an authorized Audi deal-
er or authorized Audi Service Facility to be
checked.
Opening and closing the hood
The hood is released from inside the vehicle.


Fig. 181 Footwell: release lever (example)

RAZ-0016,

Fig. 182 Unlocked hood: lever
276

Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged.
Opening the hood
> Applies to: vehicles with plug-in hybrid drive:
Switch the ignition off before releasing the
hood so that the gasoline engine does not start
automatically.
> With the door open, pull the lever > below
the instrument panel in the direction of the ar-
row > fig. 181.
» Raise the hood slightly > page 274.
> Press the lever > fig. 182 in the direction of the
arrow. This releases the hooks.
> Open the hood.
Closing the hood
> Push the hood down until you override the
force of the strut.
> Let the hood fall lightly into the latch. Do not
press it in. > /\.
Message
B Warning! Hood is not locked. Stop vehicle
and check the lock
The hood latch is not locked correctly. Stop im-
mediately and close the hood.

Z\ WARNING
— Never open the hood when there is steam or
coolant escaping from the engine compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— For safety reasons, the hood must always be
latched securely while driving. Because of
this, always check the hood after closing it
to make sure it is latched correctly. The hood
is latched if the front corners cannot be lift-
ed.
— If you notice that the hood is not latched
while you are driving, stop immediately and
close it, because driving when the hood is
not latched increases the risk of an accident.

Checking and Filling

> Restart the ignition after two minutes and read
the current oil level in the MMI > page 278,
Checking the engine oil level.
> Add more oil if necessary.

Z\ WARNING
— When adding oil, do not let oil drip onto hot
engine components. This increases the risk
of a fire.
— You must close the cap on the oil filler open-
ing correctly so that oil does not leak out on-
to the hot engine and exhaust system when
the engine is running, because this is a fire
hazard.
— Always clean skin thoroughly if it comes into
contact with engine oil.
— Engine oil is poisonous and must be kept out
of reach of children.
— Store the engine oil securely in the original
container.

@ Note
— The New Vehicle Limited Warranty does not
cover damage or malfunctions if the recom-
mended intended use of the vehicle and
maintenance measures listed in the Audi
Owner's Manual and the Warranty & Main-
tenance Booklet were not followed.
— Only use high-grade engine oil that explicit-
ly meets the Audi oil quality standard for
your vehicle. Using another oil may cause
severe vehicle damage.
— Do not mix any additives with the engine oil.
Additives may cause engine damage that is
not covered by your New Vehicle Limited
Warranty.
@ For the sake of the environment
— Oil should never enter the sewer system or
come into contact with the ground.
— Follow the legal regulations in the country
where you are located when disposing of
empty oil containers.
280
Changing engine oil
We recommend having the oil changed at an au-
thorized Audi dealer or authorized Audi Service
Facility.
Follow the safety precautions > page 274, Gener-
al information.
The engine oil must be changed at the intervals
specified in the Warranty & Maintenance Book-
let. This is very important because the lubrication
function of the oil gradually declines during regu-
lar vehicle operation.
The engine oil should be changed more frequent-
ly under certain circumstances. Have the oil
changed more frequently if you often drive short
distances, your vehicle is predominantly in stop-
and-go traffic situations, is in very dusty environ-
ments, or is operated for long periods of time in
temperatures below zero.
Cleansing additives in the oil make fresh oil ap-
pear darker after the engine has run briefly. This
is normal and no reason to change the engine oil
more frequently than recommended.
Because correctly disposing of engine oil is diffi-
cult and special tools and technical knowledge
are needed for an oil change, having your engine
oil changed by an authorized Audi dealer or au-
thorized Audi Service Facility is recommended.
If you change the engine oil yourself, please note
the following important information:

Z\ WARNING
If you change the engine oil on the vehicle
yourself, the following precautions must be
followed:
— Wear protective eyewear.
— Due to the risk of scalding, allow the engine
to cool down sufficiently.
— Maintain enough distance when you are re-
moving the oil drain plug. While doing this,
keep your forearm parallel to the ground to
reduce the risk of hot oil dripping down your
arm.

4N0012721BD
Checking and Filling

Multiple batteries with different technologies
may be installed in your vehicle:
— Vehicle battery (for example, for starting the
engine, basic power supply) > page 285, 12
Volt vehicle battery or > page 286, Other bat-
tery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 286, Other bat-
tery types
— Applies to: Plug-in hybrid drive: High-voltage
battery (for example, for electric driving)
= page 136, Introduction.
Not running the vehicle for long periods of
time
The battery will gradually drain if the vehicle
does not run for long periods of time. To ensure
that the vehicle can still be started, the electrical
equipment will be limited or switched off. Some
convenience functions, such as interior lighting
or power seat adjustment, may not be available
under certain circumstances. The convenience
functions will be available again when you start
the
engine.
Even when electrical equipment is switched off,
the equipment can still drain the battery if the
vehicle is not driven for Long periods of time.
Deep draining results in a chemical reaction that
destroys the inside of the battery. The battery
must be charged every month to prevent this
= page 286. Contact an authorized Audi dealer or
authorized Audi Service Facility for more infor-
mation.
Winter operation
Cold weather places an especially high load on
the 12 Volt vehicle battery. Have the battery
checked by an authorized Audi dealer or author-
ized Audi Service Facility before cold weather be-
gins.

authorized Audi dealer or authorized Audi
Service Facility.
— Never connect a charging cable or jump
start cable directly to the 12 Volt vehicle
battery. Only use the connections in the en-
gine compartment > page 286.


Z\ WARNING
California Proposition 65 Warning:
— Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.

@) Note
— If the vehicle will be parked for long periods
of time, protect the battery against the cold
so that it will not be destroyed by “freezing”
=> page 286, Charging the 12 Volt vehicle
battery.
— There are electrical components under the
cargo floor behind a trim panel that warm
up during operation. To reduce the risk of
the components overheating, do not store
objects such as blankets under the cargo
floor. If the components overheat, they will
switch off temporarily. This will be indicated
by a message that will be displayed in the
instrument cluster until the temperature re-
turns to normal.
PAO A Ula wer Lasley,
Explanation of warnings:
Always wear eye protection.



ZA\ WARNING
— All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
cal burns, accidents, or burns. Because of
this, all work must be performed only by an

Fire, sparks, open flame, and smoking are
forbidden.


Battery acid is highly corrosive. Always
wear protective gloves and eye protection.
A highly explosive mixture of gases can
form when charging batteries. >


285

4N0012721BD
Emergency assistance

Replacing wheels
You must complete the preparation before
changing a tire.
> Read and follow the important safety precau-
tions > page 316.
> Set the parking brake.
> Select the “P” position.
> When towing a trailer: disconnect the trailer
from your vehicle.
> Lay out the vehicle tool kit > page 316 and the
spare tire > page 322.
> Applies to: MMI: Select on the home screen:
VEHICLE > Settings & Service > Air suspen-
sion: wheel change.
> Switch the ignition off.

Z\ WARNING
The vehicle must also be secured to prevent it
from rolling when using the vehicle jack”. Use
suitable objects to block the front and back of
the wheel that is diagonal from the wheel
Removing the caps
with the flat tire.



B4L-1337

&




[
Fig. 198 Wheel: wheel bolts with caps
> Slide the plastic clip from the vehicle tool kit
onto the cap until it engages > fig. 198.
> Remove the cap with the plastic clip.

Anti-theft wheel bolts
Applies to: vehicles with anti-theft wheel bolts
i
> all
Fig. 199 Anti-theft wheel bolt with cap and adapter


B4H-0470
v

You need a special adapter in the vehicle tool kit
to remove the anti-theft wheel bolts.
>» Remove the cap @).
> Slide the adapter @) all the way onto the anti-
theft wheel bolt @.
» Slide the wheel wrench from the vehicle tool kit
all the way onto the adapter @).
> Loosen the wheel bolt > page 319.
@) Tips
Note the code number for the wheel bolt
adapter and store it in a safe place separate
from the vehicle. If you need a replacement
adapter, contact an authorized Audi dealer or
authorized Audi Service Facility and give them
the code number.
Loosening the wheel bolts

B4S-0221

Fig. 200 Wheel: loosening the wheel bolt
319

Emergency assistance

To benefit fully from the advantages of the uni-
directional tire design, you should replace faulty
tires as soon as possible and restore the correct
running direction on all of the tires.
> Reinstall the caps on the wheel bolts if necessa-
ry.
> Store the vehicle tool kit in its designated
place.
> If the removed wheel does not fit in the spare
wheel well, store it securely in the luggage
compartment > page 100.
> Check the tire pressure on the installed wheel
as soon as possible.
> Correct the tire pressure and store it in the MMI
=> page 308.
> The wheel bolt tightening specification must be
90 ft lbs (120 Nm). Have it checked as soon as
possible with a torque wrench. Drive carefully
until then.
> Have the faulty wheel replaced as quickly as
possible.
Space-saving spare tire
Applies to: vehicles with space-saving spare tire (compact
spare tire)
The spare tire is intended for short-term use only.
Have the damaged tire checked and replaced if
necessary by an authorized Audi dealer or author-
ized Audi Service Facility as soon as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the spare tire from an-
other type of vehicle.
The compact spare tire is located in the luggage
compartment under the cargo floor cover
> page 316.
The tire pressure must be 61 PSI (420 kPA).
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
322
If you have to drive with snow chains and a front
tire fails, mount the spare tire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and install that in place of the
front tire that failed.

ZA\ WARNING
— After installing a spare tire, the tire pressure
must be checked as soon as possible.
— Do not drive faster than 50 mph (80 km/h)
with a compact spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the compact spare tire.
— To reduce the risk of an accident, never drive
with more than one compact spare tire.
— Normal summer or winter tires must not be
mounted on the compact spare wheel rim.

Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle
battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.

Emergency assistance

4. Attach the other end of the negative cable
(black) to the jump-start pin @) on the vehi-
cle.
Starting the engine
> Start the engine in the vehicle giving the charge
and let it run at idle.
> Now start the engine in your vehicle, which has
the
drained battery.
> If the engine does not start, stop the starting
procedure after 10 seconds and then repeat it
after approximately 30 seconds.
> Turn on the rear window defogger in your vehi-
cle in order to reduce any voltage peaks that
may occur when disconnecting the jump start
cables. The headlights must be switched off.
> With the engines running, remove the cables in
reverse order of the way they were installed.
> Close the red cover on the positive terminal.

ZA WARNING
— Never connect the jump start cable directly
to your vehicle battery. Only use the connec-
tions in the engine compartment.
— Do not touch the non-insulated parts of the
terminal clamps. The cable must also not
come into contact with vehicle components
that conduct electricity when it is connected
to the positive vehicle battery terminal. This
can cause a short circuit.
— The plugs on the battery cells must not be
opened.
— Keep ignition sources (such as open flames,
burning cigarettes, etc.) away from the vehi-
cle batteries to reduce the risk of an explo-
sion.
— Route the jump start cables so they cannot
get caught in the moving parts in the other
vehicle's engine compartment.

@ Note
Please note that the connecting process previ-
ously described for the jump start cables is in-
tended for when your vehicle is being jump
started.
324
G) Tips
Make sure that the connected jump start ca-
bles have sufficient contact with metal.
Towing
General information
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
Towing requires a certain amount of practice.
Audi recommends contacting a towing company
to have the vehicle transported.
You should only have your vehicle towed by an-
other vehicle when disabled in exceptional cir-
cumstances. Inexperienced drivers should not
tow.
Notes on towing
When the engine is stopped, the transmission
will not be sufficiently lubricated if traveling at
high speeds and long distances:
— The maximum permitted towing speed is 30
mph (50 km/h).
— The maximum permitted towing distance is 30
miles (50 km).
Additional information on towing with a tow
truck
The vehicle may only be towed with the front axle
raised. Do not wrap any chains or cables around
the brake lines.
Tow bar and towing cable
The vehicle can be towed with a tow bar or tow-
ing cable. Both drivers should be familiar with
the
special considerations when towing, especial-
ly when using a towing cable.
Always make sure the traction force does not ex-
ceed the permitted level and there are no shock
loading conditions. There is always the risk of the
coupling becoming overloaded when driving off-
road.
For the most safety and security, drive with a tow
bar. You should use a towing cable only ifatow >