2020 AUDI A3 air condition

8V2012721BK
Airbag system

about children and Advanced Airbags
=> page 278.
Even though your vehicle is equipped with an Ad-
vanced Airbag System, make certain that all chil-
dren, especially those 12 years and younger, al-
ways ride in the back seat properly restrained for
their age and size. The airbag on the passenger
side makes the front seat a potentially dangerous
place for a child to ride. The front seat is not the
safest place for a child in a forward-facing child
seat.
It can be a very dangerous place for an in-
fant or a child in a rearward-facing seat.
The Advanced Airbag System in your vehicle has
been certified to comply with the requirements
of United States Federal Motor Vehicle Safety
Standard (FMVSS) 208, as well as Canada Motor
Vehicle Safety Standard (CMVSS) 208 as applica-
ble at the time your vehicle was manufactured.
According to requirements, the front Advanced
Airbag System on the passenger side has been
certified for “suppression” for infants of about
12 month old and younger and for “low risk de-
ployment” for children aged 3 to 6 years old (as
defined in the standard).
The PASSENGER AIR BAG OFF light in the instru-
ment panel tells you when the front Advanced
Airbag on the passenger side has been turned off
by the electronic control unit.
Each time you switch on the ignition, the PAS-
SENGER AIR BAG OFF light will come on for a
few seconds and:
— will stay on if the front passenger seat is not
occupied,
—will stay on if the electrical capacitance meas-
ured by the capacitive passenger detection sys-
tem for the front passenger seat equals the
combined capacitance of an infant up to about
one year of age and one of the rearward-facing
or forward-facing child restraints listed in Fed-
eral Motor Vehicle Safety Standard 208 with
which the Advanced Airbag System in your vehi-
cle was certified. For a listing of the child re-
straints that were used to certify your vehicle's
compliance with the U.S. Safety Standard
=> page 280.
— will stay on if there is a small child or child re-
straint on the front passenger seat,
— will go off if the front passenger seat is occu-
pied by an adult as registered by the capacitive
passenger detection system > page 265, Moni-
toring the Advanced Airbag System.
The PASSENGER AIR BAG OFF light comes on
when electrical capacitance registered on the
front passenger seat is equal to or less than the
combined capacitance of a typical 1 year-old in-
fant and one of the rearward-facing or forward-
facing child restraints listed in Federal Motor Ve-
hicle Safety Standard 208 with which the Ad-
vanced Airbag System in your vehicle was certi-
fied.
If the total electrical capacitance registered on
the front passenger seat is more than that of a
typical 1 year-old child but less than the weight
of a small adult, the front airbag on the passen-
ger side can deploy (the PASSENGER AIR BAG
OFF light does not come on).
If the PASSENGER AIR BAG OFF light does not
come on, the front airbag on the passenger side
has not been turned off by the electronic control
unit and can deploy if the control unit senses an
impact that meets the conditions stored in its
memory.
For example, the airbag may deploy if:
—asmall child that is heavier than a typical 1
year-old child is on the front passenger seat (re-
gardless of whether the child is in one of the
child seats listed > page 280), or
—a child who has outgrown child restraints is on
the front passenger seat.
If the front passenger airbag is turned off, the
PASSENGER AIR BAG OFF light comes on in the
instrument cluster and stays on.
If the front passenger airbag deploys, the Federal
Standard requires the airbag to meet the “low
risk” deployment criteria to reduce the risk of in-
jury through interaction with the airbag. “Low
risk” deployment occurs in those crashes that
take place at lower decelerations as defined in
the electronic control unit > page 265, PASSEN-
GER AIR BAG OFF light.
255
>

Airbag system


— Never hold the steering wheel at the 12
o'clock position or with your hands any-
where inside the steering wheel or on the
steering wheel hub. Holding the steering
wheel the wrong way increases the risk of
severe injury to the arms, hands, and head if
the driver airbag deploys.

ZA\ WARNING
Objects between you and the airbag will in-
crease the risk of injury in a crash by interfer-
ing with the way the airbag unfolds and/or by
being pushed into you as the airbag inflates.
— Always make sure nothing is in the front air-
bag deployment zone that could be struck
by the airbag when it inflates.
— Objects in the zone of a deploying airbag can
become projectiles when the airbag deploys
and cause serious personal injury.
— Never hold things in your hands or on your
lap when the vehicle is in use.
— Never place accessories or other objects
(such as cup holders, telephone brackets,
note pads, navigation systems, or things
that are large, heavy, or bulky) on the doors;
never attach them to the doors or the wind-
shield; never place them over or near or at-
tach them to the area marked ,, AIRBAG“ on
the steering wheel, instrument panel or the
seat backrests; never place them between
these areas and you or any other person in
the vehicle.
— Never attach objects to the windshield
above the passenger front airbag, such as
accessory GPS navigation units or music
players. Such objects could cause serious in-
jury in a collision, especially when the air-
bags inflate.
— Never recline the front passenger seat to
transport objects. Items can also move into
the deployment area of the side airbags or
the front airbag during breaking or in a sud-
den maneuver. Objects near the airbags can
fly dangerously through the passenger com-
partment and cause injury, particularly
when the seat is reclined and the airbags in-
flate.

258
Z\ WARNING
A person on the front passenger seat, espe-
cially infants and small children, will receive
serious injuries and can even be killed by be-
ing too close to the airbag when it inflates.
— Although the Advanced Airbag System in
your vehicle is designed to turn off the front
passenger airbag if an infant or a small child
is on the front passenger seat, nobody can
absolutely guarantee that deployment un-
der these special conditions is impossible in
all conceivable situations that may happen
during the useful life of your vehicle.
— The Advanced Airbag System can deploy in
accordance with the ,,low risk“ option for 3-
and 6-year-old children under the U.S. Fed-
eral Standard if a child with electrical capac-
itance greater than the combined capaci-
tance of a typical one-year old infant re-
strained in one of the forward facing or rear-
ward-facing child seats with which your ve-
hicle was certified is on the front passenger
seat and the other conditions for airbag de-
ployment are met.
— Accident statistics have shown that children
are generally safer in the rear seat area than
in the front seating position.
— For their own safety, all children, especially
12 years and younger, should always ride in
the back properly restrained for their age
and
size.
Advanced front airbag system
Your vehicle is equipped with a front Advanced
Airbag System in compliance with United States
Federal Motor Vehicle Safety Standard 208, as
well as Canada Motor Vehicle Safety Standard
(CMVSS) 208 as applicable at the time your vehi-
cle was manufactured.

The front Advanced Airbag System supplements
the safety belts to provide additional protection
for the driver's and front passenger's heads and
upper bodies in frontal crashes. The airbags in-
flate only in frontal impacts when the vehicle de-
celeration is high enough.

8V2012721BK
Airbag system

The front Advanced Airbag System for the front
seat occupants is not a substitute for your safety
belts. Rather, it is part of the overall occupant re-
straint system in your vehicle. Always remember
that the airbag system can only help to protect
you, if you are sitting upright, wearing your safe-
ty belt and wearing it properly. This is why you
and
your passengers must always be properly re-
strained, not just because the law requires you to
be.
The Advanced Airbag System in your vehicle has
been certified to meet the “low risk” require-
ments for 3 and 6 year-old children on the pas-
senger side and very small adults on the driver
side. The low risk deployment criteria are intend-
ed to help reduce the risk of injury through inter-
action with the front airbag that can occur, for
example, by being too close to the steering wheel
and instrument panel when the airbag inflates.
In addition, the system has been certified to
comply with the “suppression” requirements of
the Safety Standard, to turn off the front airbag
for infants 12 months old and younger who are
restrained on the front passenger seat in child re-
straints that are listed in the Standard
=> page 280, Child restraints and Advanced front
airbag system.
“Suppression” requires the front airbag on the
passenger side to be turned off if:
—achild up to about one year of age is restrained
on the front passenger seat in one of the rear-
facing or forward-facing infant restraints listed
in Federal Motor Vehicle Safety Standard 208
with which the Advanced Airbag System in your
vehicle was certified. For a listing of the child
restraints that were used to certify your vehi-
cle's compliance with the US Safety Standard
=> page 280,
—a person is detected on the front passenger
seat that has an electrical capacitance that is
more than the total electrical capacitance of a
child that is about 1 year old restrained in one
of the rear-facing or forward-facing infant re-
straints (listed in Federal Motor Vehicle Safety
Standard 208 with which the Advanced Airbag
System in your vehicle was certified), the front
airbag on the passenger side may or may not
deploy.
The PASSENGER AIR BAG OFF light comes on
when the electronic control unit detects a total
electrical capacitance on the front passenger seat
that requires the front airbag to be turned off. If
the PASSENGER AIR BAG OFF light does not
come on, the front airbag on the passenger side
has not been turned off by the control unit and
can deploy if the control unit senses an impact
that meets the conditions stored in its memory.
If the total electrical capacitance registered on
the front passenger seat is more than that of a
typical 1 year-old, but less than the weight of a
small adult, the front airbag on the passenger
side may deploy (the PASSENGER AIR BAG OFF
light does not come on).
For example, the airbag may deploy if:
—asmall child that is heavier than a typical 1
year-old child is on the front passenger seat (re-
gardless of whether the child is in one of the
child seats listed S page 280),
—a child who has outgrown child restraints is on
the front passenger seat.
If the front passenger airbag is turned off, the
PASSENGER AIR BAG OFF light in the center of
the instrument panel will come on and stay on.
If the front passenger airbag deploys, the Federal
Standard requires the airbag to meet the “low
risk” deployment criteria to help reduce the risk
of injury through interaction with the airbag.
“Low risk” deployment occurs in those crashes
that take place at lower decelerations as defined
in the electronic control unit > page 265.
Always remember: Even though your vehicle is
equipped with Advanced Airbags, the safest place
for children is properly restrained on the back
seat. Please be sure to read the important infor-
mation in the sections that follow and be sure to
heed all of the WARNINGS.

ZA\ WARNING
To reduce the risk of injury when an airbag in-
flates, always wear safety belts properly. >

259

Airbag system

The PASSENGER AIR BAG OFF light will show
the status of the front seat passenger's frontal
Advanced Airbag a few seconds after the igni-
tion is switched on and the airbag indicator
light goes off. The PASSENGER AIR BAG OFF
light:
— will stay on if the front passenger seat is not
occupied;
—will stay on if the electrical capacitance meas-
ured by the capacitive passenger detection sys-
tem for the front passenger seat equals the
combined capacitance of an infant up to about
one year of age and one of the rearward-facing
or forward-facing child restraints listed in Fed-
eral Motor Vehicle Safety Standard 208 with
which the Advanced Airbag System in your vehi-
cle was certified; For a listing of the child re-
straints that were used to certify your vehicle's
compliance with the U.S. Safety Standard
=> page 280.
— will go out if the front passenger seat is occu-
pied by an adult as registered by the capacitive
passenger detection system.
— The PASSENGER AIR BAG OFF light must come
on and stay on if the ignition is on and...
—a car bed has been installed on the front pas-
senger seat, or
—arearward-facing child restraint has been in-
stalled on the front passenger seat, or
—a forward-facing child restraint has been instal-
led on the front passenger seat,
—and if the electrical capacitance registered on
the front passenger seat is equal to or less than
the combined capacitance of a typical 1 year-
old infant and one of the rearward-facing or
forward-facing child restraints listed in Federal
Motor Vehicle Safety Standard 208 with which
the Advanced Airbag System in your vehicle was
certified.
If the front passenger seat is not occupied, the
front airbag will not deploy, and the PASSENGER
AIR BAG OFF light will stay on. Never installa
rearward-facing child restraint on the front pas-
senger seat, the safest place for a child in any
kind of child restraint is at one of the seating po-
sitions on the rear seat > page 254, Child re-
266
straints on the front seat - some important
things to know and > page 278, Child safety.
If the PASSENGER AIR BAG light comes
on...
If the PASSENGER AIR BAG OFF light comes on
when one of the conditions listed above is met,
be sure to check the light regularly to make cer-
tain that the PASSENGER AIR BAG OFF light
stays on continuously whenever the ignition is
on. If the PASSENGER AIR BAG OFF light does
not appear on and does not stay on all the time,
stop as soon as it is safe to do so and
— reactivate the system by turning the ignition off
for more than 4 seconds and then turning it on
again;
— remove and reinstall the child restraint. Make
sure that the child restraint is properly installed
and that the safety belt for the front passenger
seat has been correctly routed through the
child restraint as described in the child restraint
manufacturer's instructions;
— make sure that the convertible locking retractor
on the safety belt for the front passenger seat
has been activated and that the safety belt has
been pulled tight.
— make sure that no electrical device (such as a
laptop, CD player, electronic games device,
power inverter or seat heater for child seats) is
placed or used on the front passenger seat if
the device is connected to the 12-volt socket or
the cigarette lighter socket;
— make sure that no seat heater has been retrofit-
ted or otherwise added to the front passenger
seat;
— make sure that nothing can interfere with the
safety belt buckles and that they are not ob-
structed;
— make sure that there are no wet objects (such
as a wet towel) and no water or other liquids on
the front passenger seat cushion.
If the PASSENGER AIR BAG light still does
not come on...
If the PASSENGER AIR BAG OFF light still does
not come on and does not stay on continuously
(when the ignition is switched on),

Child safety

Child safety
Important information
Introduction
The rear seat is generally the safest place ina
collision.
The physical principles of what happens when
your vehicle is in a crash apply also to children
= page 246, What happens to occupants not
wearing safety belts?. But unlike adults and
teenagers, their muscles and bones are not fully
developed. In many respects children are at
greater risk of serious injury in crashes than
adults.
Because children's bodies are not fully developed,
they require restraint systems especially de-
signed for their size, weight, and body structure.
Many countries and all states of the United
States and provinces of Canada have laws requir-
ing the use of approved child restraint systems
for infants and small children.
Ina frontal crash at a speed of 20-35 mph
(30-56 km/h) the forces acting on a 13-pound
(6 kg) infant will be more than 20 times the
weight of the child. This means the weight of the
child would suddenly be more than 260 pounds
(120 kg). Under these conditions, only an appro-
priate child restraint properly used can reduce
the risk of serious injury. Child restraints, like
adult safety belts, must be used properly to be
effective. Used improperly, they can increase the
risk of serious injury in an accident.
All children, especially those 12 years and young-
er must always ride in the back seat properly re-
strained for their age and size. If you must install
a child restraint on the front passenger seat in
exceptional circumstances, be sure to read and
heed the important information and warnings
= page 254. Infants and other children who are
properly restrained in an appropriate child re-
straint that is for their size and age can benefit
from the protection that supplemental side air-
bags provide in some kinds of crashes.
For more information please see information pro-
vided by the:
278
— National Highway Traffic Safety Administration
(NHTSA), currently at : http://www.safercar.gov
(for the USA)
— Transport Canada Information Centre, currently
at: http://www.tc.gc.ca (for Canada)
Consult the child safety seat manufacturer's in-
structions in order to be sure the seat is right for
your child's size > page 282, Important safety
instructions for using child safety seats. Please
be sure to read and heed all of the important in-
formation and WARNINGS about child safety, Ad-
vanced Airbags, and the installation of child re-
straints in this chapter.
There is a lot you need to know about the Ad-
vanced Airbags in your vehicle and how they work
when infants and children in child restraints are
on the front passenger seat. Because of the large
amount of important information, we cannot re-
peat it all here. We urge you to read the detailed
information in this owner's manual about airbags
and the Advanced Airbag System in your vehicle
and the very important information about trans-
porting children on the front passenger seat.
Please be sure to heed the WARNINGS - they are
extremely important for your safety and the safe-
ty of your passengers, especially infants and
small children.

ZA WARNING
— Accident statistics have shown that children
are generally safer in the rear seat area than
in the front seating position. Always restrain
any child age 12 and under in the rear.
— All vehicle occupants and especially children
must be restrained properly whenever riding
in a vehicle. An unrestrained or improperly
restrained child could be injured by striking
the interior or by being ejected from the ve-
hicle during a sudden maneuver or impact.
An unrestrained or improperly restrained
child is also at greater risk of injury or death
through contact with an inflating airbag.
— A suitable child restraint properly installed
and used at one of the rear seating positions
provides the highest degree of protection
for infants and small children in most acci-
dent situations.

8V2012721BK
Wheels

Rims
Rims with a bolted rim ring* or with bolted wheel
covers* consist of multiple pieces. These compo-
nents were bolted together using special bolts
and a special procedure. You must not repair or
disassemble them > A\.

ZA WARNING
Wheel bolts that are tightened or repaired in-
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an accident. For the correct tightening specifi-
cation, see > page 352, After changing a
wheel.
— Always keep the wheel bolts and the threads
in the wheel hub clean and free of grease.
— Only use wheel bolts that fit the rim.
— Always have damaged rims repaired by an
authorized Audi dealer or authorized Audi
Service Facility. Never repair or disassemble
rims yourself, because this increases the risk
of an accident.
Winter tires significantly improve the vehicle's
handling when driving in winter conditions. Be-
cause of their construction (width, compound,
tread pattern), summer tires provide less traction
on ice and snow.

> Use winter tires on all four wheels.
> Only use winter tires that are approved for your
vehicle.
> Please note that the maximum permitted
speed may be lower with winter tires > A\ in
General information on page 319. An author-
ized Audi dealer or authorized Audi Service Fa-
cility can inform you about the maximum per-
mitted speed for your tires.
> Check the tire pressure after installing wheels
=> page 330.
The effectiveness of winter tires is reduced great-
ly when the tread is worn down to a depth of
0.157 inch (4 mm). The characteristics of winter
tires also decrease greatly as the tire ages, re-
gardless of the remaining tread.
(@) For the sake of the environment
Reinstall summer tires at the appropriate
time, because they provide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear, and fuel
consumption.
@) Tips
You can also use all season tires instead of
winter tires. Please note that in some coun-
tries where winter tires are required, only win-
ter tires with the 44 symbol may be permit-
ted.
Snow chains improve both driving and braking in
winter road conditions.
> Only install snow chains on the front wheels.
> Check and correct the seating of the snow
chains after driving a few feet, if necessary. Fol-
low the instructions from the manufacturer.
> Note the maximum speed of 30 mph
(50 km/h). Observe the local regulations.
Use of snow chains is only permitted with certain
rim/tire combinations due to technical reasons.
Check with an authorized Audi dealer or author-
ized Audi Service Facility to see if you may use
snow chains.
Use fine-mesh snow chains. They must not add
more than 0.53 inch (13.5 mm) in height, includ-
ing the chain lock.
You must remove the snow chains on roads with-
out snow. Otherwise, you could impair driving
ability and damage the tires.

ZA WARNING
Using incorrect snow chains or installing snow
chains incorrectly can result in loss of vehicle
control, which increases the risk of an acci-
dent.
() Note
Snow chains can damage the rims and wheel
covers* if the chains come into direct contact

335
>

Wheels

system only monitors the tire pressure you have
stored. Refer to the tire pressure label for the
recommended tire pressure for your vehicle
=> page 330, fig. 260.
Tire tread circumference and vibration character-
istics can change and cause a tire pressure warn-
ing if:
— The tire pressure in one or more tires is too low
—The tire has structural damage
— The tire was replaced or the tire pressure was
changed and it was not stored > page 338
— One side of the vehicle is more heavily loaded
than the other
— The wheels on one axle are more heavily loaded
than the others (for example, when towing a
trailer or when driving up and down hills)
— Snow chains are installed
— The spare tire* is installed
— Only one tire was replaced on each axle
Indicator lights
@ - loss of pressure in at least one tire > A\.
Check the tires and replace or repair if necessary.
Check/correct the pressures of all four tires. Then
store the tire pressures in the menu > page 338.
is (Tire Pressure Monitoring System) Tire pres-
sure: malfunction! See owner's manual. If
appears after switching the ignition on or while
driving and the @ indicator light in the instru-
ment cluster blinks for approximately one minute
and then stays on, there is system malfunction.
Check/correct the pressures on all four tires and
store the pressures > page 338. If the indicator
light does turn off or turns on again after a short
period of time, drive to an authorized Audi dealer
or authorized Audi Service Facility immediately to
have the malfunction corrected.

ZX WARNING
— If the tire pressure indicator appears in the
instrument cluster display, reduce your
speed immediately and avoid any hard steer-
ing or braking maneuvers. Stop as soon as
possible and check the tires and their pres-
sures.


338

— The driver is responsible for maintaining the
correct tire pressures. You must check the
tire pressures regularly.
— Under certain conditions (such as a sporty
driving style, winter conditions or unpaved
roads), the pressure monitor indicator may
be delayed.
— Do not use run-flat tires on your vehicle. Us-
ing them when not permitted can lead to ve-
hicle damage or accidents.
(i) Tips
—The tire pressure monitoring system can al-
so stop working when there is an ESC/ABS
malfunction.

— Using snow chains may result in a system
malfunction.
— The tire pressure monitoring system in your
Audi was calibrated with “Audi Original
Tires” > page 326. Using these tires is rec-
ommended.
—The tire pressure monitoring system can on-
ly monitor the tire pressure of the driving
tires. Check the tire pressure of the spare
wheel in the luggage compartment so that
if necessary it is ready for use.
Storing tire pressures
Applies to: vehicles with Tire Pressure Monitoring System in-
dicator
A change in tire pressure or a change in tires
must be stored in the system.
Before storing the tire pressures, make sure the
tire pressures in all four tires meet the specified
values and are adapted to the load > page 328.

> Select in the Infotainment system: [MENU] but-
ton > Vehicle > left control button > Service &
checks > Tire pressure monitoring > Store tire
pressure > Yes, store now.
(i) Tips
Do not store the tire pressures if snow chains
are installed.

8V2012721BK
Fuses and bulbs

Fuse assignment - Interior

No. Equipment



RAZ-0793,
PO ee
15°16°17-18 19 20 21
PZ ply lip y ips}
ei Hes ole” So}
32°33 34 35 36 37
F15
Electronic steering column lock, conven-
ience access control module

F16 TV tuner, telephone antenna

F17 Instrument cluster

F18 Rearview camera

F1I9 Vehicle positioning

F20
Engine components, AdBlue, charging sys-
tem

F221
Steering column, steering wheel heating
switch module

F24
Right vehicle electrical system control
module

F25 Driver's side front/rear power windows

F26 Seat heating

F27 Vehicle electrical system control module

F28 Power top control module


Fig. 281 Vehicle interior: fuse assignment
F29
Vehicle electrical system control module,
interior lighting


No. Equipment
F30 Diagnostic connector


FL Engine components, AdBlue

F2 Seat adjustment
F32
Front camera, parking system, ACC sensor,
lane change assist


F4
Infotainment control panel, Infotainment
components
F33 Airbag


FS Gateway

Fo
Selector lever (automatic transmission),
steering lock
F34
Hold assist button, interior sound, back-up
light switch, temperature sensor, neck
heating and sockets, power top operation
button


Air conditioning/heating controls, auxiliary F35
Air quality sensor, automatic dimming
rearview mirror, diagnostic connector, cen-












F7 |heating, rear window defogger, tire pres- ter console power supply
sure monitor F36 | Right headlight (LED, Matrix LED)
Electromechanical parking brake switch, F37 | Left headlight (LED, Matrix LED)
light switch, rain/light sensor, anti-theft F38 | High-voltage battery
ae ene eee dent F39 | Passenger's side front/rear power windows
range control F40 | Cigarette lighter, sockets
F9 |Steering column electronics F41 | Passenger's side safety belt tensioner
F10 | Infotainment system display F42 | Central locking area
Tl Left vehicle electrical system control mod- F44 al ee
ule, airbag FAS | Driver's side seat adjustment
F12 | Infotainment components F47 | Rear window wiper
F13 | Driver's side safety belt tensioner, airbag F48 | Outer sound actuator
F14 | Heating and A/C system blower control
361