2021 AUDI TT ECU

Telephone

secondary phone, since the directory from the
primary phone is always displayed.
Switching the primary and secondary phone
Requirement: a primary phone and a secondary
phone must be connected.

> Select: [MENU] button > Telephone > right con-
trol button > Switch primary and second.
phone.
iG) Tips
— You can see if a cell phone is connected as
the primary phone or secondary phone in
the Connection manager > page 190.

— You can also make your connected cell
phone the default phone by selecting Set as
default telephone in the Connection man-
ager > page 792.
— The device name of the connected primary
phone is shown in the Telephone menu
(such as myPhone).
— If the primary phone does not connect auto-
matically to the MMI when the ignition is
switched on, for example because it is out
of the vehicle range or the Bluetooth func-
tion is switched off, then a previously paired
secondary phone is automatically connected
as the primary phone.
— You can send and receive messages on your
primary phone as well as on your secondary
phone
> page 132, fig. 1317. You do not
need to switch your primary phone and sec-
ondary phone for this.


1) The Qi standard makes it possible to charge your mobile
device wirelessly.
130
Using the Audi phone
box
Applies to: vehicles with Audi phone box

Fig. 130 Storage compartment in the center armrest: Audi
phone box with connections
You can charge your mobile device battery using
the Audi phone box. You can make calls through
the exterior antenna* on the vehicle. Using the
external antenna* helps when there is a low sig-
nal and also provides better reception quality.
The options below are available:
— Connecting to the external vehicle antenna*:
lay the cell phone on the center of the cell
phone symbol in the Audi phone box with the
display facing up > fig. 130. Make sure there
are no objects between the Audi phone box and
the mobile device.
— Charging a cell phone wirelessly: place a Qi-ca-
pable | cell phone centered on the symbol in
the Audi phone box with the display facing up
=> fig. 130. The cell phone will charge.
— Charging a mobile device using the USB
adapter: connect your mobile device to the
Audi music interface using a USB adapter cable
@. You can charge your mobile device using
specific USB adapters > page 775, fig. 152.

ZA WARNING
— 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. >

Audi connect

— APN: the access point depends on the cell
phone service provider and is assigned auto-
matically.
— 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.

ZA WARNING
Always follow the information found in > A\
in General information on page 141.

@) Note
Always follow the information found in >@ in
General information on page 141.
@® 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.

> Select: [MENU] button > Telephone > right con-
trol button > Wi-Fi settings.

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.
Network key
The Wi-Fi connection between the MMI and your
Wi-Fi device is encrypted. You can change the fol-
lowing information if needed.
Troubleshooting
Applies to: vehicles with Audi connect Infotainment
The information that follows lists some trouble-
shooting options. They depend on the equip-
ment.
146
— Access point (SSID): name of the Wi-Fi hot-
spot.
— 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.
— Visible to others: you can switch the visibility
of the Wi-Fi hotspot on or off.
Network search
A list of available Wi-Fi networks in your area is
displayed.
Connection to personal hotspot
The MMI Wi-Fi hotspot is activated. An MMI Inter-
net connection to a personal Wi-Fi hotspot (such
as a smartphone) can be established. For addi-
tional information, see > page 142.

ZA\ WARNING
Always follow the information found in > A\
in General information on page 141.
C) Note
Always follow the information found in >@ in
General information on page 141.
G) Tips
In vehicles without Audi connect Infotain-
ment, the use of the Wi-Fi hotspot is only
possible for the Wi-Fi audio player*. A data
connection to the Internet cannot be estab-
lished.

8S1012721BE
Media

Media
Introduction
There are various media sources and connections
available in the MMI. For example, you can play
audio/video* files from the Jukebox* or connect
your mobile device to the Audi music interface*
and operate it through the MMI.
Notes
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 available in the market.
However, there may be cases where individual de-
vices or media and audio/video” files may not be
recognized, may play only with restrictions or
may not play at all.
Digital Rights Management: please note that
the audio/video* files are subject to copyright
protection.
The media sources 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, the Jukebox*, CDs/DVDs* or mobile devi-
ces. Audi is not responsible for damaged or lost
files and media.
Loading times: the more files/folders/playlists
that are on a storage medium, the longer it will
take to load the audio/video* files. Audi recom-
mends using storage media that only contain au-
dio/video files*. To decrease the time it takes to
load audio/video files*, create subfolders (for ex-
ample, for the artist or album). The loading time
will also increase when importing files.
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.
Restricted functionality: reset the Media set-
tings to the factory default settings if functional-
ity is restricted > page 190.
If functionality is restricted, reset the Jukebox* to
the factory default settings > page 190.
For information about the properties of support-
ed media and file formats, see > page 783.
CG) Note
Always follow the information found in S@ in
General information on page 141.
CD/DVD operation
Applies to: vehicles with a CD/DVD drive
CD/DVD and format restrictions: the functionali-
ty of individual storage media 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 con-
form 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.
Using CDs/DVDs, the CD drive or the DVD drive:
to ensure correct, high-quality playback and to
prevent damage to the drive or disc reading er-
rors, always store CDs/DVDs in a protective
sleeve and do not expose them to direct sunlight.
Do not use:
— Damaged, dirty or scratched CDs/DVDs
— Single CDs/DVDs with 3 inch (8 cm) diameter
— CD/DVDs that are not round
— CDs/DVDs with labels
— Protective rings
— Cleaning CDs
Thermal protection switch: CD/DVD playback
may be temporarily unavailable if outside tem-
peratures are extremely high or low. A thermal
protection switch is installed to protect the
CD/DVD and the laser.
169

System settings

Bluetooth settings
— Bluetooth: select and confirm a setting for the
Bluetooth connection visibility. Select Visible
for the MMI to be visible to other devices. Se-
lect Invisible for the MMI to not be visible to
other devices. However, it is still possible to es-
tablish a Bluetooth connection with paired de-
vices when the visibility is switched off. Select
Off to turn visibility off. Then a Bluetooth con-
nection is not possible.
— Bluetooth audio player: when this function is
switched on [M, the Bluetooth audio player is
available as a source in the Media menu.
— Bluetooth name: the MMI Bluetooth name (for
example "AUDI MMI") is displayed and can be
changed.
Online settings
— Data connection settings: see > page 145, Cell
phone network.
— Data usage counter: the amount of data pack-
ets that are sent and received through the MMI
is displayed. You can reset the data usage infor-
mation to zero using the Reset data counter
option.
— Network status: the mobile network provider
for data service as well as the network status
are displayed.
Wi-Fi settings
See > page 146.
SIM PIN settings
— Automatic PIN entry: when this function is
switched on [M, the SIM PIN is automatically
saved in the MMI after it is entered for the first
time. The SIM PIN for four different SIM cards
can be saved in the MMI. With the function
switched off |_J, the SIM PIN that is currently
stored will be deleted from the MMI. When the
automatic PIN entry is switched on, there are
no SIM PIN prompts.
— Disable PIN query: when switched on, there are
no SIM PIN queries. The automatic PIN entry is
not used in this case.
— Change PIN: you can change the PIN on your
SIM card. First enter the current SIM PIN. The
SIM PIN may only contain digits 0-9. The new


192
SIM PIN must be entered twice for security and
then it will be saved to the SIM card.
Apple CarPlay sound settings/Android Auto
sound settings
Applies to: vehicles with Audi smartphone interface
See > page 193.
About Apple CarPlay/About Android Auto
Applies to: vehicles with Audi smartphone interface
Here you will find legal information regarding
the use of Apple CarPlay or Android Auto and in-
formation about device-specific data exchange.
Delete Apple CarPlay device/Delete Android
Auto device
Applies to: vehicles with Audi smartphone interface
Requirement: your cell phone must not be con-
nected to the Audi music interface with a USB
adapter.
Select: Audi smartphone interface > a device
from the list > right control button.
To remove your mobile device from the list, se-
lect and confirm Delete Apple CarPlay device or
Delete Android Auto device.
Gi) Tips
Some SIM cards do not allow the SIM PIN
queries to be switched off.
System update

> Select: [MENU] button > Settings > left control
button > System maintenance.
— System update: insert the storage device with
the update data into the appropriate drive
= page 170. Select and confirm: the drive >
Start update. The length of the process de-
pends on the size of the update.
— Reset driver installation: the selected media
driver package is reset to the settings at the
time of delivery.
— Version information: information on the MMI
software version and the navigation database*
software version is displayed. The Software in-
formation function also provides information >

Checking and Filling


to cause cancer and reproductive harms.
Wash hands after handling.
© 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. 166 Section from the driver's side footwell: release
lever

Fig. 167 Unlocked hood: lever
Observe the safety precautions > page 200, Gen-
eral information.

1) The &> symbol is not available in all countries.
202
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged.
Opening the hood
> With the door open, pull the lever 2!) below
the instrument panel in the direction of the ar-
row > fig. 166.
> Raise the hood slightly > A\.
> Press the lever > fig. 167 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 struts.
> Let the hood fall lightly into the latch. Do not
press it in. > /\.
Message
EB 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.

ZA WARNING
— Never open the hood when there is steam or
coolant escaping from the motor 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 lifted.
— 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

> Applies to: using engine oil that meets the rec-
ommended specification: Add some more
engine oil again if necessary.
> Close the engine oil filler cap and push the dip-
stick
all the way in.
> Close the hood > page 202.

ZX 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.
206
Changing engine oil
Audi recommends having the oil changed at an
authorized Audi dealer or authorized Audi Serv-
ice Facility.
Observe the safety precautions > page 200, Gen-
eral 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, Audi recommends
having your engine oil changed by an authorized
Audi dealer or authorized Audi Service Facility.
If you change the engine oil yourself, please note
the following important information:

ZA\ 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. >

Checking and Filling

— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
— You can continue driving if the permitted
G12evo coolant additive was not added.
However, go to an authorized Audi dealer or
authorized Audi Service Facility immediately
to have the coolant replaced to reduce the
risk of engine damage.
— Due to the risk of engine damage, the cool-
ing system should only be refilled by an au-
thorized Audi dealer or authorized Audi
Service Facility. An authorized Audi dealer or
authorized Audi Service Facility can also pro-
vide
you with important information about
the recommended coolant additive.
Checking coolant

©) = z [RAz-0539]

MIN


Fig. 171 Engine compartment - coolant expansion tank
(diagram): @ cover; @) markings
Observe the safety precautions > page 200, Gen-
eral information.
Checking the coolant level
>» Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 202.
> Check the coolant level in the coolant expan-
sion tank > page 203, fig. 168 using the outer
markings @) > fig. 177. The coolant level must
be between the markings 2) when the engine is
cold. When the engine is warm it can be slight-
ly above the upper marking.
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank >@).
208
If you must add coolant, use a mixture of water
and coolant additive. Audi recommends mixing
the coolant additive with distilled water.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cap.
> Remove the cover (1) > fig. 777 carefully to the
left > AX.
» Add the correct mixture ratio of coolant
> page 207 up to the upper marking @)
> fig. 177.
» Make sure that the fluid level remains stable.
Add more coolant if necessary.
> Close the cap securely.
Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

Z\ WARNING
— The motor compartment in any vehicle is a
potentially dangerous area. Stop the engine
and allow it to cool before working in the
engine compartment. Always follow the in-
formation found in > page 200, General in-
formation.
— Never open the hood if you can see or hear
steam or coolant escaping from the motor
compartment. This increases the risk of
burns. The cooling system is under pressure.
When you no longer see or hear steam or
coolant escaping, you may open the motor
compartment with caution.
— When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the
coolant in the original container and away
from children. There is a risk of poisoning.

Checking and Filling

If this message turns off after a little while, the
vehicle battery has charged enough while driving.
If the message does not turn off, drive immedi-
ately to an authorized Audi dealer or authorized
Audi Service Facility to have the malfunction re-
Paired.
Battery
laa eee)
Because of the complex power supply, all work
on batteries such as disconnecting, replacing,
etc., should only be performed by an authorized
Audi dealer or authorized Audi Service Facility
>A.
Multiple batteries with different technologies
may be installed in your vehicle:
— Vehicle battery (for example, for starting the
engine, basic power supply) > page 270, Lead
battery or > page 211, Other battery types
— Auxiliary battery (for example, for recuperation
or optional equipment) > page 271, Other bat-
tery types
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 211. Contact an authorized Audi dealer or
authorized Audi Service Facility for more infor-
mation.
210
Winter operation
Cold weather places higher demands on the bat-
tery. This results in reduced starting ability. Have
the battery checked by an authorized Audi dealer
or authorized Audi Service Facility before cold
weather begins.

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
authorized Audi dealer or authorized Audi
Service Facility.
— Never connect the charging cable or jump
start cable directly to your vehicle battery.
Only use the connections in the engine com-
partment > page 217.

ZA\ 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 211, Charging the battery.
Explanation of warnings:


Always wear eye protection.


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

A highly explosive mixture of gases can

Battery acid is highly corrosive. Always
wear protective gloves and eye protection.

form when charging batteries. >