2021 AUDI A4 ignition

8W1012721BC
Sitting correctly and safely

Adjusting the lumbar support
> To adjust the lumbar support, press the button
@) in the desired direction.
Adjusting the upper thigh support
> To increase or decrease the upper thigh sup-
port, lift the handle @) and move the upper
thigh support.
Massage function
> To switch the massage function on or off, press
the button ©) > fig. 57.
Adjusting the side supports
You can adjust the side bolsters using the multi-
function button @) > fig. 57.

ZA WARNING
—To reduce the risk of an accident, only adjust
the driver's seat when the vehicle is station-
ary.
— The power front seats can also be adjusted
when the ignition is switched off. To reduce
the risk of injury, children should never be
left unattended in the vehicle for this rea-
son.
— Exercise caution when adjusting the seat
height. Unsupervised or careless seat adjust-
ment could cause parts of the body to get
pinched, which increases the risk of injury.
— The front seat backrests must not be re-
clined too far back when driving, because
this impairs the effectiveness of the safety
belts and airbag system, which increases the

risk of injury.

ON em amie MR

Applies to: vehicles with seat settings in the MMI
RAZ-0873,



Fig. 58 Center display: seat settings
The settings and the number of menus and but-
tons depend on the vehicle equipment.
Operating
Applies to: MMI
> Select on the home screen: VEHICLE > Seats.
> To access the various menus (4), swipe to the
left or right.
> To display the various seats, press ) or ( @.
The red coloring in the symbol @) indicates which
seat is selected.
Massage
See > page 65
Additional seat settings
See > page 65
aces cetera (ol)
Applies to: vehicles with massage function
Selecting the massage function
> To open the Massage menu, press the button
© > page 64, fig. 57.
Switching the massage function on or off
Applies to: MMI
> To switch the massage function on or off, press
the button ©) > page 64, fig. 57.
> Press Start/Stop on the MMI.
Setting the massage type and intensity
Applies to: MMI
> To adjust the massage type, press the desired
button on the MMI, for example Wave.
> To adjust the intensity of the massage, press
Intensity on the MMI repeatedly until the de-
sired level is reached.
G) Tips
The massage function switches off automati-
cally after approximately 10 minutes.
OX CTT eerie Mg
> Applies to: MMI: Select on the home screen:
VEHICLE > Seats.
> Swipe to the left if necessary.
65

8W1012721BC
Sitting correctly and safely

Safety belt retractor
The safety belts are equipped with an automatic
belt retractor. This automatic retractor allows the
safety belt to be pulled all the way out when the
belt is pulled slowly. However, the automatic re-
tractor locks during sudden braking maneuvers.
It also locks the belts when accelerating, driving
uphill, and driving around curves.
Belt force limiter
Safety belts with belt force limiters reduce the
force placed on the body by the safety belts dur-
ing a collision.
Safety belt pretensioners
In certain driving situations, safety belts may be
tightened with reversible belt tensioners when
you start driving. If the safety belt is too loose, it
will be tightened so that the belt will rest closer
to the body.
In some collisions, pyrotechnic belt tensioners
may secure the safety belts so that they cannot
loosen. This reduces forward movement by the
vehicle passengers.
Depending on vehicle equipment, some settings
such as the driver’s seat and exterior mirror posi-
tion can be stored.
Storing and recalling a seat profile
Applies to: vehicles with memory function
The memory function buttons are located in the
door trim panel.
Storing a seat profile

> Press the [SET] button. If the LED in the button
turns on, a seat profile can be stored.
> Push one of the numbered memory buttons. A
tone confirms that the settings were stored.

Recalling a seat profile
> When the a door is open and the ignition is
switched off, press the memory button once
briefly. The seat will be fully adjusted to the
settings in the seat profile.
> If the door is closed or the ignition is switched
on, press and hold the memory button until the
seat is fully adjusted to the settings in the seat
profile.

ZA\ WARNING
The pyrotechnic system can only provide pro-
tection during one collision. If the pyrotechnic
belt tensioners deploy, the pretensioning sys-
tem must be replaced by an authorized Audi

dealer or authorized Audi Service Facility.

@) Tips
Smoke may be released when pyrotechnic belt
tensioners deploy. This is not a sign of a vehi-
cle fire.
Memory function
General information
Applies to: vehicles with memory function
With the memory function, you can save and call
up seat profiles using the memory buttons in the
door trim panel.
Z\ WARNING
—To reduce the risk of an accident, the seat
setting can only be recalled when the vehicle
is stationary.
— In an emergency, the recall process can be
canceled by pressing the seat adjustment
button on that seat.

Airbag system
Z\ WARNING
— If you have not fastened your safety belt,
you are in an incorrect seating position, or
you are too close to the airbag system, the
airbag system will not be able to protect
you. This increases the risk of serious or fa-
tal
injuries. Make sure that every vehicle
passenger has their safety belt correctly fas-
tened and is sitting in a correct seating posi-
tion > page 63. This is necessary regardless |>


71

Sitting correctly and safely


of whether the seat is equipped with an air-
bag or not.
— Never place your feet on the instrument
panel, out of the window, or on the seat sur-
faces. To help ensure that the airbag system
can deploy correctly, never bend forward or
lean on the door or the side window. Other-
wise, serious and possibly fatal injuries can
occur if the airbags deploy.
— People, animals, or objects between the
passengers and the airbag system can inter-
fere with the correct deployment of the air-
bag or can be thrown through the vehicle in-
terior, increasing the risk of serious or fatal
injuries. Make sure that nothing is located
between the vehicle occupants and the air-
bag system. Do not secure or transport any
objects within the deployment zone of the
airbag systems, especially on the steering
wheel, on the instrument panel, on the
doors, on the windows, or in the footwell.
— Never put stickers on the airbag system cov-
ers or cover them with any objects.
— Only lightweight clothing should be hung
from the garment hooks in the vehicle. Do
not use clothes hangers to hang clothing.
The pockets of the clothing must not con-
tain any heavy, breakable, or sharp-edged
objects. This could impair the effectiveness
of the side curtain airbags.
— You must not use seat or protective covers
that are not specifically approved for use on
Audi seats with side airbags. Since the side
airbags deploy from the seat backrest, such
covers could impair the protective function
of the side airbags.
— Damage to the original seat covers in the
side airbag deployment area must always be
repaired by an authorized Audi dealer or au-
thorized Audi Service Facility.
— Airbag system components are installed at
various locations in your vehicle. Incorrect
work or repairs on the vehicle could damage
the airbag system components or impair
their functionality. This may prevent the air-
bags from deploying or cause them to de-
ploy incorrectly in the event of an accident,
which increases the risk of serious or fatal

72
injuries. Only have an authorized Audi dealer
or authorized Audi Service Facility make re-
pairs or modifications to a vehicle.
— The airbag system can only provide protec-
tion during one collision. If there is another
collision, the airbag system will not deploy
again. If the airbag system has deployed,
have it replaced immediately by an author-
ized Audi dealer or authorized Audi Service
Facility.
— Fine dust may appear if the airbags deploy.
This is completely normal and does not indi-
cate a fire in the vehicle. The fine dust can ir-
ritate the skin and mucous membranes in
the eyes and can cause difficulty breathing,
particularly for individuals who have or have
had asthma or other health issues that af-
fect breathing. Exit the vehicle or open the
windows or doors to get access to fresh air.
(i) Tips
If you are transporting children in the vehicle,
read the information and follow the safety
precautions > page 76.
Safety systems monitoring
The ka indicator light in the instrument cluster
monitors the safety systems such as the airbags
(including the control modules, sensor, and wir-
ing) and the belt tensioners. It turns on when you
switch the ignition on and turns off after several
seconds.


If the indicator light does not turn on when the
ignition is switched on, does not turn off after
several seconds, or turns on or flashes while driv-
ing, there may be a malfunction in one of the
safety systems. Drive to an authorized Audi deal-
er or authorized Audi Service Facility immediately
to have the malfunction corrected.

ZA WARNING
Have the malfunction in the safety systems in-
spected immediately. Otherwise, there is a
risk that the systems may not activate during
an accident, which increases the risk of seri-
ous or fatal injury.

Sitting correctly and safely

within milliseconds. Inflated airbags reduce the
movement of passengers wearing safety belts in
the direction of the impact and thus help to re-
duce the risk of injury. They can help to protect
the head, upper body, and lap, for example. How-
ever, there is the possibility that airbag deploy-
ment can cause injuries.
The airbag system only works when the ignition
is turned on.
If you or other vehicle passengers have physical
limitations that prevent sitting in a correct posi-
tion, modifications to the vehicle may be neces-
sary. For more information, contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty, or call Audi customer support at
1-800-822-2834.
@) Tips
The side curtain airbags in your vehicle have
ejection mitigation functions. This reduces
the risk of being ejected from the vehicle inte-
rior during an accident, especially in the event
of a vehicle rollover.
Advanced airbag system

Fig. 69 Headliner: indicator light to display the status of
the front passenger's airbag
The Advanced Airbag System in your vehicle has
been certified to comply with the requirements
of the 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 these requirements, the front Ad-
vanced Airbag System on the passenger’s side
has been certified for “suppression” for infants
approximately 12 months old and younger, and
74
for “low risk deployment” for children aged 3 to
6 years old (as defined in the standard).
The advanced airbag system will activate or deac-
tivate the front passenger's airbag based on the
occupancy of the seat. If a front airbag deploys
during an accident, the deployment force will
adapt to the passenger.
Components
The advanced airbag system consists of the fol-
lowing components:
— Front airbags in the steering wheel and in the
instrument panel on the front passenger's side:
these can protect the front passengers during
an accident
— Passenger occupant detection sensor in the
front passenger's seat: this detects if the front
passenger's seat is occupied (for example, by a
person or asmall child in a child safety seat)
— Seat position sensors on the front seats: these
determine the distance between the seat and
the steering wheel or instrument panel
— Sensors in the front seat belt latch: these de-
tect if the safety belts are fastened
— PASSENGER AIR BAG OFF ; ON ® indi-
cator light in the headliner:this indicates if the
front passenger's airbag is activated or deacti-
vated
- ka indicator light in the instrument cluster:
this monitors the function of the Advanced Air-
bag System components to ensure they are
functioning correctly
How the components function together
The passenger occupant detection sensor in the
front passenger's seat detects if the front pas-
senger's seat is occupied. The passenger occu-
pant detection sensor measures the electrical ca-
pacity on the front passenger’s seat. The pas-
senger's airbag is activated or deactivated de-
pending on the electrical capacity that is meas-
ured.
The passenger's airbag is activated if:
— The electrical capacity is higher than the
threshold stored in the control module

8W1012721BC
Sitting correctly and safely

— The electrical capacity is the same as or greater
than the electrical capacity of a typical adult
The passenger's airbag is deactivated if:
— The electrical capacity is lower than the thresh-
old stored in the control module
— The electrical capacity is the same as or less
than the electrical capacity of a typical one-
year-old child in a child safety seat that has
been used for certification in accordance with
FMVSS 208
If the front passenger's airbag is activated, the
PASSENGER AIR BAG ON @ indicator light
will turn on. If the front passenger's airbag is de-
activated, the PASSENGER AIR BAG OFF #;
indicator light will turn on.
The deployment force of the front airbags adapts
based on whether or not the safety belt is used
and the distance between the seat and the steer-
ing wheel/instrument panel. For example, if a
person is too close to the front airbag, the front
airbag will deploy with less force to help reduce
the risk of injury.
Meaning of PASSENGER AIR BAG OFF 3; ON
® indicator light
When the ignition is switched on, the system de-
tects whether the front passenger's seat is occu-
pied. PASSENGER AIR BAG OFF #; ON @
will turn on for several seconds during this proc-
ess. Then it will indicate whether the front pas-
senger's airbag is activated or deactivated.
— PASSENGER AIR BAG OFF #%%;: the front
passenger's airbag is deactivated and will not
deploy in the event of an accident.
— PASSENGER AIR BAG ON ®:: the front pas-
senger's airbag is activated and could deploy in
the event of an accident.
If a change to the occupancy status of the front
passenger's seat is detected
PASSENGER AIR BAG OFF #, ON @ will
flash for several seconds and will then display the
status of the front passenger's airbag.
Always make sure the indicator light corresponds
to the occupancy of the front passenger's seat.
— An adult or individual of similar size in the
front passenger's seat: the front passenger's
airbag must be activated, therefore
PASSENGER AIR BAG ON @ must remain
turned on.
— An individual of smaller size (for example, an
adolescent or small adult) in the front pas-
senger's seat: the front passenger's airbag
must be activated, so
PASSENGER AIR BAG ON @ must stay on.
— Child in a child safety seat on the front pas-
senger's seat: the front passenger's airbag
must be deactivated, so
PASSENGER AIR BAG OFF #¥; must stay on.
— Front passenger's seat not occupied: the front
passenger's airbag must be deactivated, so
PASSENGER AIR BAG OFF %; must stay on.

Z\ WARNING
— An adult or a person with a small stature
(such as a young person or small adult) seat-
ed on the front passenger's seat will not be
protected by the passenger's airbag in the
event of a collision if the passenger's airbag
is deactivated. This increases the risk of in-
jury and death. Always make sure that
PASSENGER AIR BAG ON @ remains on
while driving. If
PASSENGER AIR BAG ON @ does not
turn on, make sure the front passenger is
sitting correctly in the seat > page 63 and
that there is nothing covering the front pas-
senger's seat (such as blankets or pillows).
If PASSENGER AIR BAG ON ®@ still does
not turn on, the front passenger's seat must
not be used. Drive to an authorized Audi
dealer or authorized Audi Service Facility
and have the airbag system inspected.
—Achild ina child safety seat on the front
passenger's seat - especially in a rear-facing
child safety seat - can receive a severe im-
pact if the front passenger's airbag deploys,
which increases the risk of serious or fatal
injury. Always secure child safety seats on
the rear seats. If special circumstances re-
quire the use of a child safety seat on the
front passenger's seat, always make sure

75

Storage and convenience

Storage and convenience
Power sources
When the ignition is switched on, you may be
able to use multiple power sources for external
devices, depending on the vehicle equipment.
12 volt sockets
You can connect electrical accessories to the 12
volt sockets. The power usage from the sockets
must not exceed a total of 120 watts. Do not
connect multiple devices to the sockets in the ve-
hicle at the same time.
The 12 volt sockets are labeled with the 12V
symbol. They are located in the front center con-
sole, in the rear* and on the side trim panel in the
luggage compartment”*.
USB ports
Applies to: vehicles with USB port
You can charge mobile devices using the USB
ports. The USB ports are labeled with the «> or
[4 symbol or CHARGE ONLY.


ZA\ WARNING
— To reduce the risk of fatal injury, store all
connected devices securely when driving so
that they do not move around inside the ve-
hicle when braking or in the event of an acci-
dent.
— Incorrect usage can lead to serious injuries
or burns. To reduce the risk of injuries, never
leave children unattended in the vehicle
with the vehicle key.

@) Note
— Read the operating manuals for the con-
nected devices.
—To reduce the risk of damage to the vehicle
electrical system, never attempt to charge
the vehicle battery by connecting accesso-
ries that provide power to the power sour-
ces.
— Do not connect any device whose network
class (voltage) does not match the network
class designed for the socket.
82
— Disconnect the connectors from the power
sources carefully to reduce the risk of dam-
aging them.
G) Tips
Do not connect any other devices to the sock-
ets when using the compressor* provided by
the factory > page 261. The power consump-
tion in the sockets may be temporarily ex-
ceeded when using the compressor*.
Cup holders
Applies to: vehicles with cup holders
5 e
= z 8

Fig. 74 Rear center armrest*: cup holders
Depending on vehicle equipment, your vehicle
may have cup holders in the front center console
and in the rear center armrest.
Cup holders in the rear center armrest*
> Fold the center armrest* downward.
> To open the cup holders, pull the top cover on
the cup holders forward > fig. 74.
> To close the cup holder, fold the cover back un-
til it clicks into place.

Z\ WARNING
— Do not put any hot beverages in the cup
holder while the vehicle is moving. Hot bev-
erages could spill, which increases the risk
of injury.
— Do not use any breakable beverage contain-
ers (for example, made out of glass or por-
celain). You could be injured by them in the
event of an accident. >

Warm and cold

Warm and cold
Climate control system
Your vehicle has a deluxe automatic climate con-
trol system with 3 zones where the temperature,
air distribution, and air supply can be set sepa-
rately on the left front side, the right front side,
and in the rear.
The climate control system warms, cools, dehu-
midifies, and filters the air in the vehicle interior.
It is the most effective when the windows and
panoramic glass roof* are closed. If there is a
build-up of heat inside the vehicle, ventilation
can help to speed up the cooling process.
The automatic climate control system automati-
cally maintains a temperature once it has been
set. In all heating mode functions except defrost,
the blower only switches to a higher speed once
the coolant has reached a certain temperature.
Pollutant filter
The pollutant filter removes pollutants such as
dust and pollen from the air.

ZX WARNING
— You should not use the recirculation mode
for an extended period of time, because no
fresh air is drawn in and the windows can
fog when cooling mode is switched off. This
increases the risk of an accident.
— Individuals with reduced sensitivity to pain
or temperature could develop burns when

90


using the seat heating* function. To reduce
the risk of injury, these individuals should
not use seat heating”.

C) Note
To reduce the risk of damage to the seat heat-
ing* elements, do not kneel on the seats or
place heavy pressure on one area of the seat.
@) For the sake of the environment
Energy can be saved by switching off the A/C
mode.
Gi) Tips
—To prevent interference with the heating or
cooling output and to prevent the windows
from fogging over, the air intake in front of
the windshield must be free of ice, snow,
and leaves.
— Condensation from the cooling system can
drip and form a puddle of water under the
vehicle. This is normal and does not mean
there is a leak.
— The energy management system may tem-
porarily switch off certain functions, such as
the seat heating” or rear window defogger.
These systems are available again as soon as
the energy supply has been restored.
— If the front passenger's seat heating* is
turned on, it will not turn on again automat-
ically if more than 10 minutes have passed
between switching the ignition off and on
again.

8W1012721BC
Warm and cold

& Defrosting
The windshield and side windows are defrosted
or cleared of condensation as quickly as possible.
Align the outer air vents with the side windows.
The maximum amount of air flows mainly from
the vents below the windshield. Recirculation
mode switches off. The temperature should be
set at 72 °F (+22 °C) or higher. The temperature
is controlled automatically.
You can switch the defroster on or off using the
X& button. You can switch the function off by
pressing a knob (4).
@ Rear window defogger
The rear window defogger only operates when
the engine is running. It switches off automati-
cally after 10 to 20 minutes, depending on the
outside temperature.
To prevent the rear window defogger from
switching off automatically, press and hold the
® button for more than three seconds. This is
stored until the ignition is switched off.
Vents
You can open or close the center and rear vents in
the cockpit and the vents in the rear center con-
sole using the ridged thumbwheels. The levers
adjust the direction of the airflow from the vents.
Residual heat
You can activate the residual heat function when
the ignition is switched off by pressing the knob
@ (left side). The residual heat from the coolant
is used to heat the vehicle interior. The residual
heat function switches off automatically after
about 15 minutes.
Additional settings
Applies to: vehicles with 3-zone deluxe automatic climate
control system
You can adjust additional settings.
> Applies to MMI: Select on the home screen: VE-
HICLE > Air conditioning.
Auto recirculation
When switched on, automatic recirculation con-
trols the recirculation mode automatically. You
must press the && button if fog forms on the win-
dows.
Steering wheel heating
Sica Lie mola
Applies to: vehicles with steering wheel heating
> Press the @ button on the multifunction steer-
ing wheel to switch the steering wheel heating
on and off.
Applies to: vehicles with steering wheel heating
@ Steering wheel heating: on / Steering wheel
heating: off
This message appears if you switched the steer-
ing wheel heating on or off by pressing the but-
ton on the multifunction steering wheel.
Steering wheel heating: malfunction! See own-
er's manual
If this message appears, there is a malfunction.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
Fluids in the A/C system
Refrigerant in the A/C system
The sticker in the engine compartment provides
information about the type and amount of refrig-
erant used in the vehicle’s A/C system. The stick-
er is located in the front section of the engine
compartment or at the front or back of the hood.

Symbol
A
ss
at
Meaning

Warning: the A/C system must only
be serviced by qualified technicians.

Refrigerant type

Lubricant type >

93