2020 AUDI A3 engine

8V2012721BK
Media

Two USB charging ports* are located at the back
of the center console.
— USB adapter: refer to > page 217, USB adapter
for Audi music interface.
— Charging a mobile device using the USB
adapter: connect your mobile device to a USB
charging port using a suitable USB adapter.
— Disconnecting a mobile device from the charg-
ing port: remove the USB adapter from the USB
charging port.
— Disconnecting mobile devices with an Apple
Dock connector: remove the Apple Dock con-
nector from the Apple device with the release
tabs pressed in.

ZA\ WARNING
Driving requires your complete and undivided
attention. As the driver, you have complete re-
sponsibility for safety in traffic. Never operate
your mobile devices while driving, because
this increases the risk of an accident.

@ Note
Extremely high or low temperatures that can
occur inside vehicles can damage mobile devi-
ces and/or impair their performance. Never
leave mobile devices in the vehicle in ex-
tremely high or low temperatures.
G) Tips
— Always follow the information found in
=> page 59.
— When you switch the ignition off, the USB
ports are still supplied with power until the
energy management intervenes.
— Do not use any additional USB extension ca-
bles or adapters to connect mobile devices
to the USB charging port that have already
been connected by a USB adapter. Using an
additional adapter or US extension cable
may impair functionality.
— USB hubs are not supported.
— Refer to the manufacturer's operating man-
ual for important information regarding the
operation of your mobile device.
— Correct function of all mobile devices can-
not be guaranteed.
— The vehicle battery drains when mobile de-
vices are turned on but the engine is off.
Playing media
\ La Coton
(2
©-«n ei]
So
eTocs
yee Per
Fig. 191 Infotainment system: possible sources in the Me-
dia menu
o~ Se eC e Ng
Cela ttn ant)

Eitan en Ns
7:

Fig. 192 Infotainment system: possible sources in the Me-
dia menu
You can start and operate various media through
the MMI control panel.
Requirement: a media source must contain au-
dio/video* files > page 212.
> Press the [MEDIA] button. Press the left control
button until the sources overview is displayed.
> Select and confirm the desired source, or
> press the [MEDIA] button repeatedly until the
desired source is selected.

Depending on the vehicle equipment, the follow-
ing sources may be displayed in the Media menu:
GD) Jukebox? sc. so secose so series ween ns 213
@) DVD/CD drive® ss ¢ « seas: eames ne 212, 212
@ SDeardreader ................ 212
@ Audi music interface* ........... 217
such as an iPhone, USB stick
© External audio player ........... 217
such as an MP3 player connected to
the AUX input >
219

Checking and Filling

Checking and Filling
Fuel
Types of gasoline
The correct gasoline grade is stated on the inside
of the fuel filler door.
The vehicle is equipped with a catalytic converter
and must only be driven with unleaded gasoline.
Audi recommends using TOP TIER Detergent Gas-
oline. For additional information on TOP TIER De-
tergent Gasoline, visit www.toptiergas.com.
The individual gasoline grades are differentiated
by octane ratings. This value is given with (R
+M)/2 equating to AKI or in RON.
The headings below match the sticker in the fuel
filler door (examples):
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular / MIN. RON 91 Regular
Use regular gasoline with minimum 87 AKI /
91 RON > ©.
Audi recommends using premium gasoline with
minimum 91 AKI / 95 RON to achieve the rated
horsepower and torque.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 91 / SUPER MIN. RON 95
Using premium gasoline with minimum 91 AKI /
95 RON is recommended.
If premium gasoline is not available, you can also
use regular gasoline 87 AKI / 91 RON. However
this does reduce the engine power slightly.
() Note
— Filling the tank just one time with leaded
fuel or other metallic additives will cause
permanent deterioration to the catalytic
converter function.
— When gasoline with an octane rating that is
too low is used, high speeds or heavy engine
load can lead to engine damage.
298
G) Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is required by
the engine.
Gasoline mixture
Gasoline with alcohol or MTBE (Methyl-Tert-
Butyl-Ether)
You can use unleaded gasoline mixed with alco-
hol or MTBE (generally labeled as oxygenated
compounds) as long as the fuel meets the follow-
ing conditions:
Gasoline with methanol content (methyl alco-
hol
or methanol)
— Anti-Knock Index is at least 87 AKI
—No more than 3% methanol
— More than 2% solvent
Gasoline with ethanol content (ethyl alcohol or
ethanol)
— Anti-Knock Index is at least 87 AKI
—No more than 15% ethanol
Gasoline with MTBE content
— Anti-Knock Index is at least 87 AKI
—No more than 15% MTBE
Gasoline adapted to the season
Many gasoline fuels are adapted to the seasons.
When the season changes, we recommend refu-
eling at high-traffic gas stations. It is more likely
that the gasoline will be suitable for the season
there.
() Note
— Gasoline with methanol content that does
not meet the specified conditions may cause
corrosion damage and damage to plastic or
rubber components in the fuel system.
— Do not use gasoline that does not meet the
specifications.
— If you are unable to find out if a specific gas-
oline mixture meets the specifications, ask
the gas station operator or their fuel suppli-
er.

8V2012721BK
Checking and Filling

— Do not use any gasoline mixture whose
composition cannot be identified.
— Audi does not assume any responsibility for
damage to the fuel system or for perform-
ance problems caused by using gasoline
mixtures different from those specified.
This type of damage also does not fall under
the New Vehicle Limited Warranty or under
the emissions control system warranty.
— If you notice a higher fuel consumption or
poor handling or performance problems due
to such gasoline mixtures, we recommend
fueling with unblended gasoline.
Gasoline additives
An important issue for many automobile manu-
facturers is combustion residue in the engine
that results from the use of certain fuels.
Although types of gasoline differ depending on
the manufacturer, there are similarities. Certain
substances in the gasoline may cause deposits in
the engine. Additives in the gasoline that should
keep the engine and fuel system clean do not all
function equally.
Audi recommends using TOP TIER Detergent Gas-
oline. For additional information on TOP TIER De-
tergent Gasoline, visit www.toptiergas.com.
If you use incorrect fuels over a long period of
time, the maximum engine performance may be
impaired by combustion residue.
@) Note
— Damage or malfunctions caused by the use
of incorrect types of gasoline are not cov-
ered by the New Vehicle Limited Warranty.
— Only gasoline additives that have been ap-
proved by Audi may be used.
Refueling
Fueling procedure

B8V-0111

Applies to: vehicles with conventional drive system
Fig. 239 Right rear side of vehicle: opening the fuel filler
door

B8V-0110

Applies to: vehicles with conventional drive system
Fig. 240 Fuel filler door with tank cap on
Plug-in hybrid drive*: refer to the information un-
der > page 302, Refueling.
The fuel filler door is unlocked or locked by the
central locking system.
> Plug-in hybrid drive: read and follow the in-
structions under > page 302, Opening the fuel
filler door.
>» Unlock the vehicle if necessary.
> Conventional drive system: press on the left
side of the fuel filler door to open it > fig. 239.
> Unscrew the tank cap counterclockwise.
» Place the cap from above on the open fuel filler
door > fig. 240.
> Insert the fuel pump nozzle all the way into the
fuel filler neck.
> Begin fueling. Once the fuel pump nozzle turns
off the first time, the fuel tank is full. Do not
continue fueling, or else the expansion space in
the tank will be filled with fuel. >
299

Checking and Filling

> After the fuel pump has switched off, wait five
seconds before removing the nozzle to allow
the rest of the fuel to finish dripping into the
fuel tank.
> Turn the fuel cap clockwise until it clicks into
place.
> Close the fuel filler door and then press on the
left side until it latches.
The correct fuel type for your vehicle can be
found ona label located on the inside of the fuel
filler door. For additional information on fuel, see
=> page 298.
For the tank capacity in your vehicle, refer to the
Technical Data > page 380.
To reduce the risk of fuel leaking out or vapors
escaping, make sure that the fuel tank is closed
correctly. Otherwise the Ey indicator light will
turn on.
If the central locking system malfunctions, there
is a fuel filler door emergency release
= page 301.
Messages
Plug-in hybrid drive: for additional information
on refueling, see > page 302.
| Tank system: malfunction! Please contact
Service
There is a malfunction in the fuel tank system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.

— If you do not insert the fuel pump nozzle all
the way into the filler tube, then fuel can
leak out. Spilled fuel can ignite and start a
fire.
— Never get into the vehicle when refueling. If
there is an exceptional situation where you
must enter the vehicle, close the door and
touch a metal surface before touching the
fuel pump nozzle again. This will reduce the
risk of electrostatic discharge that can cause
flying sparks. Sparks can start a fire when
refueling.


ZA\ WARNING
Improper fueling procedures and improper
handling of fuel can lead to explosions, fires,
severe burns, and other injuries.
— Do not smoke. Keep away from open flames.
— The ignition must be switched off when re-
fueling.
— Mobile devices, radio devices, and other ra-
dio equipment should always be switched
off when refueling. Electromagnetic rays


ZA WARNING
Transporting fuel containers inside the vehicle
is not recommended. Fuel could leak out of
the container and ignite, especially during an
accident. This can cause explosions, fires, and
injuries.
— If you must transport fuel in a fuel contain-
er, note the following:
— Always place the fuel container on the
ground before filling. Never fill the fuel
container with fuel while it is inside or on
the vehicle. Electrostatic discharge can oc-
cur while refueling and the fuel vapors
could ignite.
— When using fuel containers made of met-
al, the fuel pump nozzle must always re-
main in contact with the container to re-
duce the risk of static charge.
— Insert the fuel pump nozzle as far as pos-
sible into the filler opening while refuel-
ing.
— Follow the applicable legal regulations in
the country where you are driving when
using, storing and transporting fuel con-
tainers.
— Make sure that the fuel container meets
the industry standards, for example ANSI
or ASTM F852-86.


could cause sparks and start a fire.


1) Depending on the engine and country
300

8V2012721BK
Checking and Filling
— Remove fuel that has overflowed onto any If the central locking system malfunctions, the
vehicle components immediately to reduce fuel filler door can be unlocked manually.
the risk of damage to the vehicle.
— Never drive until the fuel tank is completely
empty. The irregular supply of fuel that re-
sults from that can cause engine misfires.
Uncombusted fuel may enter the exhaust
system and increase the risk of damage to
the catalytic converter.

a
s - a oO


— Do not overfill the fuel tank, or fuel could Raa SERS pplies to: version 1
leak out when the vehicle is warming up. Fig. 241 Right rear luggage compartment: emergency re-
— Fuel should never enter the sewer system or lease (example)
come into contact with the ground.


The fuel filler door on your vehicle does not
lock if you lock the vehicle from the inside us-
ing
the central locking switch.


Fuel can age and may lead to problems when

starting. Audi recommends replacing the fuel Applies to: version 2 ;
in your vehicle within six months. Fig. 242 Rear of the vehicle: right rear seat folded forward


Emergency release in the luggage
a compartment
Applies to: vehicles with plug-in hybrid drive Applies to: version 1
If the engine turned off because the fuel level
was too low, then you may need to refuel with
up to 4.0 gallons (15 liters) of fuel in order
for the vehicle to detect the new fuel level.
Otherwise, the engine may not restart. » Remove the cover in the side panel.
> To unlock the fuel filler door, loosen the loop
from the retainer and then pull on the loop
carefully in the direction of the arrow & fig. 241
>©.
> Conventional drive system: press on the left
side of the fuel filler door to open it
=> page 299, fig. 239.
The emergency opening mechanism is located
behind the right side trim panel in the luggage
compartment.
Plug-in hybrid drive*: read and follow the instruc-
tions under > page 302. >
301

Checking and Filling

Emergency release behind the rear seat
backrest
Applies to: version 2
The emergency release is located behind the
right
rear seat.
The pull cable for the emergency release is locat-
ed on the cover.
> To access the emergency release, fold the right
backrest forward > page 63.
> Remove the cover fh) from the trim panel.
> To release the fuel filler door, pull the cover in
the direction of the arrow carefully at a 45° an-
gle toward the center of the vehicle > fig. 242
>). The tab on the cover must point forward
in the direction you are pulling when pulling on
the cover.
> Press on the left side of the fuel filler door to
open it > page 299, fig. 239.
© Note
Only pull on the loop/cover until you feel re-
sistance. You will not hear it release. If you
continue to pull, you could damage the emer-
gency
release mechanism.
Refueling
Opening the fuel filler door
Applies to: vehicles with plug-in hybrid drive



B8V-0441
Fig. 243 Driver's door: button
The tank system must be vented before refueling
> Switch the ignition off with the
START ENGINE STOP] button.
> Pull the EN) switch.
> The fuel filler door will open automatically af-
ter venting is complete.

302

Read and follow the directions for inserting the
fuel pump nozzle > page 302.
Read and follow the instructions for refueling
=> page 299.
Inserting the fuel pump nozzle
Applies to: vehicles with plug-in hybrid drive
a o o 2
> fay oO

Fig. 244 Fueling procedure: insert the fuel pump nozzle
correctly
Make sure when inserting the fuel pump nozzle
that you do not press on the fuel filler door open-
er @ with the fuel pump nozzle. See the label in
the fuel filler door @). Otherwise, a valve will
close in the fuel filler neck and fueling will stop
even if the tank is not full.
You must vent the tank system again if you press
on the fuel filler door opener. The fuel pump noz-
zle can stay in the fuel filler neck when doing
this. Vent the tank system by pulling the
switch again in the driver's door > page 302.
Messages
Applies to: vehicles with plug-in hybrid drive
li Fuel filler door open. Please press button
again to refuel
Fueling is possible for a little while after pressing
the Gi) button. You must press the M button
again if the time limit is exceeded.
ly Fuel filler door: malfunction! Unlock fuel
filler door manually. See owner's manual
There is a malfunction. You must manually un-
lock the fuel filler door > page 303.
la Warning! Vehicle performance may be limit-
ed

8V2012721BK
Checking and Filling

The fuel tank is almost empty. You must antici-
pate a significant power loss. Drive immediately
to a gas station.
Ey Beet Warning! Limited performance
The gasoline engine is no longer available be-
cause there is not enough fuel. Drive immediately
to agas station.
Fuel filler door emergency release
Applies to: vehicles with plug-in hybrid drive
You must use the emergency release to open the
fuel filler door when there is a malfunction
=> page 301.
The tank is not vented. You can only fill a small
amount of fuel in the tank.
> Fill only until the automatic fuel pump nozzle
turns off for the first time when it is operated
correctly.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
@ Tips.
Pressure can escape if you open the tank cap
after using the emergency release. This can
create noises.
Emissions control
system
(ee eileen)
ZX WARNING
The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
— Never touch the exhaust tail pipes once they
have become hot. This could result in burns.

— Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the emissions sys-
tem could start a fire.

— Do not apply underbody protectant in the
exhaust system area, because this increases
the risk of fire.
(el e-] Nad (mcl akg
Follow the safety precautions > page 303, Gener-
al information.


The vehicle may only be driven with unleaded
gasoline, or the catalytic converter will be de-
stroyed.
Never drive until the tank is completely empty.
The irregular supply of fuel that results from that
can cause engine misfires. Uncombusted fuel
could enter the exhaust system, which could
cause overheating and damage to the catalytic
converter.
On Board Diagnostic System (OBD)
The On Board Diagnostic System monitors the
engine and transmission components that influ-
ence emissions.


Fig. 245 Footwell on left side of the vehicle: connection
port for the On Board Diagnostic System (OBD)
On Board Diagnostic System
Engine data can be read out at the On Board Di-
agnostic System connection port using a special
testing device > fig. 245.
Indicator light
If the S indicator light blinks or turns on, there
is a malfunction that is causing poor emissions
quality and that could damage the catalytic con-
verter. Drive slowly to an authorized Audi dealer >
303

Checking and Filling

or authorized Audi Service Facility to have the
malfunction corrected.
The indicator light can also turn on if the fuel fill-
er cap is not closed correctly > page 2991).

ZA\ WARNING
Incorrect use of the connection port for the
On Board Diagnostic System can cause mal-
functions, which can then result in accidents
and serious injuries.
— Only allow an authorized Audi dealer or au-
thorized Audi Service Facility to read out the
engine data.

Engine compartment
(ee eel)
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area. > /\.

Z\ WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the engine com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the anti-freezing agent con-
tained in the coolant) can ignite.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
temperature-controlled and can turn on
suddenly, even when the ignition is switched
off.


1) Depending on the engine and country
304


— 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.
Plug-in hybrid drive: the coolant expansion
tank cap is equipped with a seal that must
never be removed under any circumstances
=> page 312, fig. 251. If the coolant expan-
sion tank for the high-voltage system is not
sealed, please contact an authorized Audi
dealer or authorized Audi Service Facility.
Plug-in hybrid drive: the sealed cap must on-
ly be opened by an authorized Audi dealer or
authorized Audi Service Facility.
The cap on the coolant expansion tank must
never be opened as long as the coolant is
hot. The cooling system is under pressure.
There is a risk of burns
To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.
Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
Due to the risk of electric shock, never touch
the ignition cable or other components in
the electronic high-voltage ignition system
when the engine is running or is starting.
If a gear is engaged while the vehicle is sta-
tionary and the engine is running, do not
press the accelerator pedal inadvertently.
Pressing the accelerator pedal will cause the
vehicle to move, and this could result in an
accident.
If inspections or repairs must be performed
while the engine is running, moving compo-
nents (such as the ribbed belt, generator,
and radiator fan) pose an additional risk.
— Set the parking brake first and select the
“p” (Park) selector lever position.
— Always make sure that no parts of the
body, jewelry, ties, loose clothing, and
long hair can be caught in moving engine