2020 AUDI A3 hood open

8V2012721BK
Checking and Filling

Observe the safety precautions > A\ in General
information on page 304.
> Park the vehicle on a level surface.
> Shut the engine off when it is warm.
> Wait approximately two minutes.
> Open the hood > page 305.
> Remove the oil dipstick > page 307, fig. 248,
wipe
it off with a clean cloth and insert it all the
way in again.
> Remove the oil dipstick again and then read the
oil level > table on page 309.
> Add engine oil if necessary > page 309.

Areas on the oil dipstick > fig. 249.

@| If the engine oil level is just before the
marking (@), then engine oil must be added.
See>O.


@|Do not add engine oil.

() Note
— The engine oil level must not be below the
marking ©, because this increases the risk
of engine damage.
— After adding engine oil, the oil level must
not be above the marking (2) > fig. 249, be-
cause this increases the risk of catalytic con-
verter and/or engine damage. If the oil level
is above the marking Q), drive to an author-
ized Audi dealer or authorized Audi Service
Facility immediately to have any engine oil
extracted. Avoid high engine speeds, full ac-
celeration, and heavy engine loads.
@ Tips
— The engine oil consumption may be up to
0.5 quart/600 miles (0.5 liter/1,000 km),
depending on driving style and operating
conditions. Consumption may be higher dur-
ing the first 3,000 miles (5,000 km). The
engine oil level must be checked regularly.
It is best to check each time you refuel your
vehicle and before long drives.
— Because of the lubrication and cooling of
the engine, combustion engines consume
oil. The oil consumption varies depending
on the engine and may change during the
service life of the engine. Engines generally
consume more oil at the beginning during
the break-in period. Then oil consumption
stabilizes after the break-in period.
— Under normal conditions, oil consumption
depends on the quality and viscosity of the
oil, the engine RPM, the climate conditions,
and the road conditions. The dilution of oil
from condensation or fuel residue as well as
the age of the oil also play a role. Because
engine wear increases with mileage, oil con-
sumption will increase again over time until
it may be necessary to replace worn compo-
nents.
— Because all these variables play a role, it is
not possible to define an oil consumption
standard. Therefore, the oil level must be
checked regularly.
— If you believe that your engine has in-
creased its oil consumption, contact an au-
thorized Audi dealer or authorized Audi
Service Facility to determine the cause.
Please note that an exact oil consumption
measurement must be done with the neces-
sary care and accuracy and may take time.
An authorized Audi dealer or authorized
Audi Service Facility is trained in accurately
measuring the oil consumption.
— You can find information on engine oil and
engine oil capacities for the USA at www.
audiusa.com/help/maintenance, or for Can-
ada at www.audi.ca/ca/web/en/
customer-area/care-and-maintenance/
audi-service-schedules.html, or call
800-822-2834.
Adding engine oil

B8K-2120


Fig. 250 Engine compartment: engine oil filler opening
cover
309

Checking and Filling

Observe the safety precautions > A\ in General
information on page 304.
> Turn the engine off.
> Open the hood = page 305.
> Unscrew the cap %~ for the engine oil filler
opening > fig. 250.
> Carefully add 0.5 quart (0.5 liter) of the correct
oil > page 307.
> Check the oil level again after two minutes
=> page 308, Checking the engine oil level.
> Add more oil if necessary.
> Close the engine oil filler cap and push the dip-
stick
all the way in.
> Close the hood > page 305.

Z\ WARNING
—When adding oil, do not let oil drip onto hot
engine components. This increases the risk
of a fire.
— You must seal 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.
310
@) 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.
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 304, 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:

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.

Checking and Filling

Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
— If the appropriate coolant additive is not
available in an emergency, do not add any
other additive. You could damage the en-
gine. If this happens, only use water and re-
store the correct mixture ratio with the
specified coolant additive as soon as possi-
ble.
— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
— 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.
@® Tips
Applies to: RS models: In certain weather
conditions, moisture such as rain or snow may
evaporate on the radiator after stopping the
vehicle. This may cause steam to escape from
the front of the vehicle.
Applies to: vehicles with plug-in hybrid drive


Fig. 251 Engine compartment: coolant expansion tank
Your vehicle has two coolant expansion tanks
that are separate from each other:
@) expansion tank for gasoline engine and elec-
tric motor.
@®): expansion tank for the high-voltage area.
312
The expansion tank (@) must not be opened
oA.
> Switch the ignition off.
> Open the hood > page 305.
> Always check the coolant level in both coolant
expansion tanks (@) and @) using the outer
markings.
> When you fill coolant in the expansion tank (A),
please refer to > page 311, Cooling system.
> Do not drive any farther if the coolant level in
the expansion tank (@) is low. Contact an au-
thorized Audi dealer or authorized Audi Service
Facility immediately > A\.

ZA WARNING
— Read and follow the warnings in
=> page 304, General information before
opening the hood and checking the coolant
level.
— The expansion tank (8) may only be opened
and filled by an authorized Audi dealer or
authorized Audi Service Facility.
— Coolant can enter the inside of the high-
voltage battery when filling the expansion
tank @) and cause a short circuit, which in-
creases the risk of fire.

Checking coolant

RAZ-0539


MIN

Fig. 252 Engine compartment - coolant expansion tank
(diagram): @ cover; @) markings
Observe the safety precautions > page 304, Gen-
eral information.
Checking the engine coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 305.

8V2012721BK
Checking and Filling

> Check the coolant level in the coolant expan-
sion tank > page 307, fig. 248 using the outer
markings (2) > fig. 252. 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
Applies to: vehicles with plug-in hybrid drive:
Your vehicle has two coolant expansion tanks
that are separate from each other. The smaller of
the two expansion tanks must not be opened
= page 312. Read and follow the important safe-
ty precautions > A\ in Coolant on page 312.
Requirement: there must be a residual amount of
coolant in the expansion tank >@).
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cover.
> Remove the cover (@) © fig. 252 carefully to the
left > AX.
» Add the correct mixture ratio of coolant
> page 311 up to the upper marking @
> fig. 252.
> 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.

— Never open the hood if you can see or hear
steam or coolant escaping from the engine
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 engine
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.

@) Note
Do not add coolant if the expansion tank is
empty. Air could enter the cooling system and
damage the engine. If this is the case, do not
continue driving. See an authorized Audi deal-
er or authorized Audi Service Facility for assis-
tance.
Brake fluid

BFV-0229)



Z\ WARNING
— The engine compartment in any vehicle can
be a dangerous area. Stop the engine and al-
low it to cool before working in the engine
compartment. Always follow the informa-
tion found in > page 304, General informa-
tion.


Fig. 253 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 304, Gen-
eral information.
Checking the brake fluid level
Read the brake fluid level on the brake fluid res-
ervoir > page 307, fig. 248. The brake fluid level
must be between the MIN and MAX markings
>A.
The brake fluid level is monitored automatically. >
313

Checking and Filling

environment. Do not dispose of them in
household trash. They contain harmful sub-
stances, such as sulfuric acid and lead, and al-
so recyclable raw materials. Contact an au-
thorized Audi dealer or authorized Audi Serv-
ice Facility for more information.
Other battery types
Explanation of warnings:

Fire, sparks, open flame, and smoking are
eS) forbidden.
Always keep children away from battery
@) acid and the battery.


@/ | Always follow the instructions in the oper-
fQ | ating manual.

ZA\ WARNING
All work on the batteries must only be per-
formed by an authorized Audi dealer or au-
thorized Audi Service Facility.
— Gases that escape from these different bat-
tery types can be poisonous or flammable.
— The contents of these battery types can be
corrosive. If any battery contents come into
contact with the skin, flush the affected
area for at least 15 minutes with clean wa-
ter. Then wash the affected area with soap.
Have the affected area examined by a medi-
cal professional.

@ Note
Components must not be connected to the
battery terminals and wires on these battery
types because this increases the risk of dam-
age, for example due to overvoltage.
@ For the sake of the environment
<2 These types of batteries must be dis-
posed of using methods that will not harm
the environment. Do not dispose of them in
household trash. They contain harmful sub-
stances and recyclable raw materials. Contact
an authorized Audi dealer or authorized Audi
Service Facility for more information.

316
Charging the battery

Applies to: vehicles with vehicle battery in the engine com-
partment
Fig. 254 Engine compartment: connections for charger or
jump start cable
B8V-0529

Applies to: vehicles with jump start point (+)
Fig. 255 Engine compartment: connections for charger or
jump start cable
Note the safety precautions > page 304, General
information, > /\ in Battery general informa-
tion on page 315 and > /\.
Plug-in hybrid drive: > page 365.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
Depending on the engine, the battery is located
in the engine compartment or in the luggage
compartment. For vehicles with the battery in
the luggage compartment, a jump start point
that is also used for battery charging is located in
the engine compartment. The battery is always
charged in the engine compartment. The ground
point ©) is always located on the vehicle body.
> Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 305.

8V2012721BK
Checking and Filling

» Applies to: vehicles with vehicle battery in the
engine compartment: Open the cover on the
positive terminal > fig. 254.
> Applies to: vehicles with jump start point (+):
Open the cover on the positive terminal
> fig. 255.
> Clamp the terminal clamps on the charger cor-
rectly onto the ground point ©) and the positive
terminal @).
> Insert the power cable for the charging device
into the socket and switch the device on.
> At the end of the charging process, switch the
charger off and pull the power cable out of the
socket.
> Remove the charging device terminal clamps.
> Applies to: vehicles with vehicle battery in the
engine compartment: Open the cover on the
positive terminal.
> Applies to: vehicles with jump start point (+):
Close the cover on the positive terminal.
> Close the hood > page 305.

ZA WARNING
— Applies to: vehicles with jump start connec-
tions in the engine compartment: The
charging cable must never be connected di-
rectly to the vehicle battery. Only use the
connections in the engine compartment
=> page 316.
— A highly explosive mixture of gases can form
when charging batteries. Only charge the
battery in well-ventilated areas.
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). Do not charge or
use a frozen or thawed battery. If ice forms,
the battery housing can crack and battery
electrolyte can leak out, which increases the
risk of an explosion and chemical burns.
Contact an authorized Audi dealer or author-
ized Audi Service Facility for more informa-
tion.
— Do not connect or disconnect the charging
cable while charging because this increases
the risk of an explosion.

@) Tips
Read all of the manufacturer's instructions
for the charger before charging the battery.
Windshield washer
system

B8K-2123


Fig. 256 Engine compartment: windshield washer fluid
cover (example)
Observe the safety precautions > page 304, Gen-
eral information.
The windshield washer fluid reservoir & contains
the cleaning solution for the windshield and the
headlight washer system* > page 307, fig. 248.
The reservoir capacity can be found in
=> page 380.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean water with low amounts
of calcium. Always add window cleaner to the wa-
ter. When the outside temperatures are cold, an
anti-freezing agent should be added to the water
so that it does not freeze.
Messages
gS Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.
@) Note
— The concentration of anti-freezing agent
must be adjusted to the vehicle operating
conditions and the climate. A concentration
that is too high can lead to vehicle damage.
— Never add radiator anti-freeze or other addi-
tives to the washer fluid.
— Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
317

8V2012721BK

Emergency situations

Jump start
Applies to: vehicles with plug-in hybrid drive
The
term "vehicle battery" refers to the 12 volt
battery in your vehicle.
rr B z
BS 3 & C3
1 = AT
Fig. 283 Engine compartment: connectors for a charger
and jump start cables
The vehicle is equipped with one vehicle battery
and one high-voltage battery.
If the vehicle battery is drained, it can be charged
with a charger or you can jump start the vehicle
using another vehicle's battery in the same way
as a conventional vehicle.
Read the information about charging the vehicle
battery > page 316 and for jump starting the ve-
hicle > page 364.
> Open the hood > page 305.
» Remove the fuse box cover (8) to access the
positive terminal (4) > page 307.
> Clamp the terminal clamps from the charging
device or jump start cable to the positive termi-
nal @) and to the body ground point @).
(@) Note
You must not give a jump start with your vehi-
cle. This could cause significant damage to
the electrical system in your vehicle.

A3 models: jump starting
Applies to: vehicles with conventional drive system
Both jump start cables must be connected in the
correct order.

Fig. 284 Engine compartment: connecting the jump start
cable
The vehicle battery is located on the left front
side of the engine compartment. Open the cover
to access the positive terminal of the vehicle bat-
tery. The procedure for connecting jump start ca-
bles that is described next is designed to help
jump start your vehicle.
Follow the information about the vehicle battery
> page 315.
Preparations
1. Read the following carefully > page 364,
Preparation.
2. Set the parking brake and place the selector
lever in the "P" position.
3. Turn the ignition and electrical equipment off
in both vehicles.
Connecting/disconnecting the jump start
cable
4. Fold the battery cover upward.
5. Clamp the end of the red jump start cable to
the positive terminal @ > fig. 284 on your
vehicle >(@) in Preparation on page 364.
6. Clamp the other end of the red jump start ca-
ble to the positive terminal 2) on the vehicle
battery providing the current.
7. Clamp the black end of the jump start cable
preferably to the ground point, or to the
negative terminal of the vehicle battery @)
on the vehicle providing the current.
365
>

8V2012721BK
Index

Dynamic volume
refer to System volume........---.00-5 235
E
E-mail...............0000 000 c eee eee 177
eco mode (climate control system)......... 66
Economical route wives so aicava a a wsnsens a 6 aienaie 197
EDL
refer to Electronic Differential Lock....... 93
EDR
refer to Event Data Recorder........... 371
Efficiency program... ... eee eee eee eee 23
Electrical system. .......2.-.0 ee eee eee 314
Electromechanical parking brake.......... 87
Electronic Differential Lock............... 94
Electronic immobilizer..............00005 26
Electronic Stabilization Control............ 93
Embedded)SIM Cat wavy. s waves » x eee 3 5 ee 183
Emergency assistance ............0 eee 348
Emergency braking function.............. 87
Emergency flashers.............0.000005 45
Emergency mode...................2005 77
Emergency operation
DOOrs 0... eee eee 30
Fuebfillerdoor's » = sry : 4 sews s eae s pee 301
Luggage compartment lid............... 32
Panoramic glass roof................-. 35
Emergency starting..................-. 364
Emissions control system..............- 303
Energy CONSUMENS « « sick 4 este oo weirs oo ave 22
Energy management............eceeeeee 82
Energy recovery
refer to Recuperation.................. 78
Engine
Breakingin.............2..2.02020020005 78
GCoGlaiitiowen: « 2 wage « 2 germs gz eee ge EE EE 311
Emerqeney:stops « sesscc x 2 same a v answes vv ase 71
Jump starting ........ cee cece eee eee 364
Jump starting (plug-in hybrid drive)...... 365
Start/Stop'SySteM sei os wes eo sosnene o + wore 83
Starting and stopping.................. 71
Engine braking effect
refer to Recuperation..............000. 78
Engine compartment
Opening and closing the hood.......... 305
OVERVIEW ecu 3 2 cows « @ eos ¢ eae go re 307
Safety precautions.................04. 304
Engine data
refer to Sport displays............000005 24
Engine oil
Adding ......... 00. c cee ee eee eee ee 307
CHANGING ox « « caw « paawy s mews oo Romy s & 310
Checking oil:leveli. . « csscie «0 vce wn meee a 307
Consumption...........0..-0.0 eee eee 307
DiPStick:: s sees = x ween 2 2 Bowe 2 ze eees Bae 307
Indicator light & cscs. x x wow xo coon ea menos 308
Replacement interval................. 318
Temperature display................0.. 23
Engine start system. ..............0..0-. 73
Engine stop
Goastings: « sss + ¢ sees + ¢ ceeie oo ews = 78, 83
Enhanced VieW « ase > mee s soem es eee ee 19
Entering characters/numbers (speller)... .. 153
Entering letters (speller)................ 153
Entertainment sliding menu............. 151
Entry/exit lighting. ............. 0... eee 45
Entry assistance
refer to Seats... 2... eee ee 55
Environment
Unleaded gasoline................205. 298
EPB
refer to Electromechanical parking brake.. 87
eSIM
refer to Embedded SIM card............ 183
Event: Data Recorder's « «sci. e s sxcciws 2 a eon © 371
Exterior lighting: < swe « = sews sy eee = 5 oes 43
Exterior MUrrOtScs: = = seus « 2 ees ae ween eo: 47
FOldin Qian 3 5 soane vx wens 2 ¥ anewens oo shea a 2 ae 47
Folding settings................0e ee eee 29
External voice operation................ 168
F
Factory default settings
Multi Media Interface................. 231
Fader (sound) ...........- 0c eee eee eee ee 234
Fastening
Booster seats..............0-00-0000. 287
Convertible child safety seats........... 285
Infant seats.......... 0... cee eee eee ee 284