2021 AUDI A4 heating

Table of contents

About this Owner's Manual......
SUMIMAry: < = exe : eens: Seen cs sens
QutckeaeCe ssh: «i esis se ois a eaves @
Cockpit. ...... 0... eee eee eee eee
Indicator lights overview...........4..
Display and operation...........
Instrument cluster...............
Instrument cluster overview...........
Operating. ecccuse w+ were oo wens oo ayes 9 ¥
Adjusting the display.................
Coolant temperature display...........
Tachometer’ series i ewe so snes ¥ & ome
Odometer.............. cee eee eee ee
Outside temperature display...........
Engine oil temperature indicator.......
Boost indicator...............0--000.
Vehicle functions...............-----
Touch display.....................
General touch display operation........
Multi Media Interface................
Head-up display..................
DeSeriptions: s wees « x wows ¢ cess so eee
Voice recognition system........
Generalinformation.................
DeSeriptions. «+ seams x x arucsms x 0 seine oo coer
External voice operation..............
Global FUNGtHIONS:. icc: 5 6 ese. 6 6 sce
Additional function buttons...........
Starting and driving.............
Personalization..................
Opening and closing.............
Central locking..............00-e eee
Child safety lock.............00.-000
Power WindOWSic« s < sews ys wey 5 2 em 5
Sliding/tilting:SUNTOOF escinie os wise a 6 soe
Panoramic glass roof.................
NOD
OO
12 12 12
13
13
14 14
15
15
15
15
16 17 17 19
Z5
25
26 26 26 27
29;
29
30 30 30
33
33)
37
40
44
45
46 47
Valetiparking = s ss-e «x cscs ov cree a ¥ os 48
Garage door opener..........--.00 eee 48
Lights and Vision................. 51
Exterior lighting...................4. 51
Interior liQhting ss =e aves ss eews so eos 54
ViSIOMsn « 3 ses 3 3 ema oo wena vo ae © ove 55
Windshield wipers.............-..45- 58
Digital compass.............-.-0000- 61
Sitting correctly and safely...... 63
Correct passenger seating position...... 63
Frontseats:: » ssw. « ¢ sews & » saws +s ewe < 63
Steering wheel seis < «cies ¥ eerie ss eee 66
Head restraints.................0000. 67
Safety Beltsi: s sass x eeups ¢ < saves 2 e cee 68
Memory function . « scons ecw ee cro ee 71
Airbag system... ... 2.62... 0 ee eee eee 7X
Child safety seats.................04- 76
Storage and convenience........ 82
POWErSOURCES coisa gs seen ss wae se aes 82
Gup holders. ¢ ssn ss wee 2 2 see 2 & pee 82
Storage and compartments............ 83
Luggage compartment............... 83
ROOF hacks « = weies x = wae 2 s eae 2 & ween 2 88
Warm and cold................... 90
Climate control system............... 90
3-zone deluxe automatic climate control. 91
Steering wheel heating............... 93
Fluids in the A/C system. .........0065 93
Driving .............. 0.0... eee eee 95
Starting the vehicle...............0.0. 95
When driving isis ss iovsvie se aerswce oo anes oe 96
Drive system... 2.2... ee eee eee eee 101
Start/Stop system .........ee cece eee 102
BrakeS's so isemi 2 wane w aman a 2 oer as ie 104
Electromechanical parking brake....... 106
Special driving situations.............. 107
Driving: dynamic. . « sic. 6 6 see a 6 se 110
Audi drive select..................00. 110
SUSPENSION es « + exes ¢ ¢ eres +o ees vv eae 111
SUECOMIING 6 vessse oo csisweue io & stone 6 a toma ww Bs Lid

Instrument cluster

Adjusting the layout
Applies to: Audi virtual cockpit
Depending on the vehicle equipment, various lay-
outs may be available.
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit.
> To adjust the desired layout, press @).
Adjusting the additional display
Applies to: Audi virtual cockpit
Depending on the vehicle equipment, the addi-
tional displays that can be selected may vary.
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit > Configure.
> Select the desired additional display.
Reducing the display
Depending on the vehicle equipment, you can
hide the central area in the instrument cluster.
> Select on the instrument cluster: vehicle func-
tions tab > [=] button > Reduced display, or
> Press the VIEW button on the multifunction
steering wheel.
Coolant temperature
display
Applies to: vehicles with a coolant temperature indicator
The coolant temperature display @) > page 12
only functions when the ignition is switched on.
To reduce the risk of engine damage, please ob-
serve the following notes about the temperature
ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem-
perature yet. Avoid high engine speeds, full accel-
eration, and heavy engine loads.
Normal range
The engine has reached its operating tempera-
ture once the LEDs up to the center of the gauge
turn on. If the | indicator light in the instru-
14
ment cluster display turns on, the coolant tem-
perature is too high > page 227.
() Note
— Auxiliary headlights and other accessories in
front of the air intake impair the cooling ef-
fect of the coolant. This increases the risk of
the engine overheating during high outside
temperatures and heavy engine load.
— The front spoiler also helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over-
heating will increase. See an authorized
Audi dealer or authorized Audi Service Fa-
cility for assistance.
Tachometer
The tachometer @) > page 12 displays the engine
speed in revolutions per minute (RPM). The be-
ginning of the red zone in the tachometer indi-
cates the maximum permissible engine speed for
all gears once the engine has been broken in. Be-
fore reaching the red zone, you should shift into
the next higher gear, select the "D" or "S" selec-
tor lever position, or remove your foot from the
accelerator pedal.
Engine speed limitation
If the tA indicator light turns on, the engine will
be automatically limited to the RPM displayed in
the instrument cluster. This will protect the en-
gine components, for example during a cold start
or from overheating.
The engine speed limitation is deactivated if you
release the accelerator pedal while the engine is
at normal operating temperature.
If the engine speed limitation was activated by
an engine control malfunction, the By indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for exam-
ple when downshifting. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately to have the malfunction corrected. >

8W1012721BC
Storage and convenience

@) Note
Beverage containers in the cup holders should
always
have a lid. Otherwise, the liquid inside
could spill and cause damage to vehicle
equipment.
Storage and
compartments
Storage area behind the rear head
restraints
Applies to: vehicles with storage area behind the rear head re-
straints
The storage area can be used to carry light pieces
of clothing.

Z\ WARNING
The storage compartment must not be used
to transport heavy objects, hard objects, or
animals. Such objects endanger vehicle occu-
pants and increase the risk of injury during
sudden driving or braking maneuvers or in an
accident.
@) Note
Make sure that the heating grid strips for the
rear window defogger are not damaged by
abrasive objects.
@ Tips
To ensure the ventilation functions correctly,
the ventilation slots between the rear window
and the storage area must not be covered.
Additional storage options
Depending on vehicle equipment, there are a va-
riety of storage areas, compartments, and retain-
ers, such as the glove compartment, for safely
storing and securing objects.

Z\ WARNING
—To reduce the risk of injury, make sure all
storage compartments are always closed
while driving.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-

ing maneuvers, which increases the risk of
an accident. Store objects securely while
driving.
— Only use the storage compartments in the
door trim panels to store small objects that
will not stick out of the compartment and
impair the function of the side airbags.
— Due to strength reasons, only secure objects
up to 11 lbs (5 kg) with the straps* in the
luggage compartment. Heavier objects are
not adequately secured. There is risk of per-
sonal injury.
— 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.
— Make sure your view toward the rear is not
blocked, for example by hanging clothing or
objects in the vehicle.


Luggage compartment
General information
All pieces of luggage or objects must be securely
fastened in the luggage compartment. Note the
following to maintain good vehicle handling:
> Distribute the load evenly in the luggage com-
partment.
> Stow heavy luggage as far forward in the lug-
gage compartment as possible.
> Use non-elastic cords attached to the tie-downs
to secure objects.

Z\ WARNING
— Applies to: vehicles with luggage compart-
ment cover: The luggage compartment cov-
er is not a surface for storing objects. Ob-
jects placed on the cover increase the risk of
injury to all vehicle occupants during sudden
driving or braking maneuvers or in the event
of an accident. >

83

Storage and convenience


— Applies to: vehicles with luggage compart-
ment cover: The luggage compartment cov-
er must always be securely fastened when in
use to reduce the risk of an accident.
— Loose objects can be thrown around the ve-
hicle interior during sudden driving or brak-
ing maneuvers, which increases the risk of
an accident. Always stow objects securely in
the luggage compartment and secure them
at the tie-downs. Use straps suitable for
heavy objects.
— If pieces of luggage or objects are secured
to the tie-downs with unsuitable or dam-
aged straps, this can increase the risk of in-
jury during braking maneuvers or accidents.
— When transporting heavy objects, the vehi-
cle characteristics will change due to the
shift in the center of gravity, which increases
the risk of an accident. You may need to
adapt your driving style and speed to the
current conditions.
— The cargo net* is only strong enough to se-
cure light objects. Heavy objects are not ade-
quately secured. Attempting to secure heavy
objects increases the risk of injury.
— Never exceed the permitted axle and load
and vehicle weight > page 287.
— Never secure a child safety seat to the tie-
downs.
— Never leave your vehicle unattended, espe-
cially if the luggage compartment lid is
open. Children could enter the luggage com-
partment and close the luggage compart-
ment lid from the inside. This creates the
risk of fatal injury, since the children would
be locked in and may not be able to escape
by themselves.
— Do not allow children to play in or on the ve-
hicle. Close and lock the luggage compart-
ment lid as well as all other doors when you
leave
the vehicle.
— Never transport passengers in the luggage
compartment. Every passenger must be cor-
rectly secured with the safety belts in the
vehicle > page 68.
— Be careful when releasing the backrest and
folding
it forward. To reduce the risk of be-


ing pinched, pay attention and check when
folding backrests forward.
— The backrest must be securely latched so
objects cannot slide forward out of the lug-
gage compartment during sudden braking.
— The backrest must be latched securely to en-
sure that the safety belt is protecting the
center seating position.
— Always pull forward on the backrest to make
sure it is check if it is correctly locked in
place.


84
() Note
—To reduce the risk of damage, move the rear
head restraints down > page 67 before fold-
ing the rear backrests forward.
— When folding the backrest forward, make
sure the outer safety belts are in the belt
guide recess so that they do not get pinched
in the backrest lock and damaged. Other ob-
jects should be removed from the rear
bench seat to protect the backrest from
damage.
— To reduce the risk of damaging the front
seats, make sure there is enough space be-
tween the front seat and the rear seat
equipment when folding the center backrest
forward.
— If you move the front seat back when the
rear seat backrest is folded forward, you
could damage the head restraints on the
rear seat.
— Make sure that the heating grid strips for
the rear window defogger are not damaged
by abrasive objects.
— Applies to: vehicles with manual luggage
compartment cover: Let the luggage com-
partment cover roll up slowly to reduce the
risk of damage.
— Applies to: vehicles with partition net: Let
the partition net roll up slowly to reduce the
risk of damage.
(i) Tips
— The tire pressure must be adapted to the
load > page 245.
— You can purchase straps at specialty stores.

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.

Warm and cold

The cooling mode only functions with the blower
turned on. The air is not cooled and humidity is
not reduced when cooling mode is switched off.
This can cause fog on the windows. The cooling
mode switches off automatically at low outside
temperatures.
If you activate A/C ON, the cooling mode will be
automatically regulated. A/C OFF switches cool-
ing mode off.
If you activate A/C MAX*, the cooling mode will
operate with maximum output. To reduce unnec-
essary energy usage, only use this function brief-
ly.
<= Recirculation mode
In recirculation mode, the air inside the vehicle is
circulated and filtered. This prevents the unfil-
tered air outside the vehicle from entering the
vehicle interior > A\ in Description on page 90.
Pressing the <> button switches recirculation
mode on or off manually. You can also switch the
recirculation mode off by pressing the knob @ or
the §% button.
AUTO Automatic mode
Automatic mode maintains a constant tempera-
ture inside the vehicle. Air temperature, airflow
and air distribution are controlled automatically.
You can switch automatic mode on or off by
pressing the knob @).
Temperature
You can adjust the temperature between 60°F
(+16°C) and 84°F (+28°C) by turning the knob
©. If outside of this range, LO or HI will appear
in the climate control system display. In both set-
tings, the climate control runs constantly at the
maximum cooling or heating level. The tempera-
ture is not regulated.
The temperature can be adjusted in the rear us-
ing the rear controls > fig. 92.
$= Blower
You can adjust the volume of air generated by the
blower to your preference using the rocker switch
@. The blower should always run at a low setting
to prevent the windows from fogging and to en-
92
sure a continuous exchange of air inside the vehi-
cle. To have the blower regulated automatically,
press one of the knobs (@).
Air distribution
You can use the rocker switches (2) to adjust the
vents where the air will flow out of. Press the
rocker switches (2) repeatedly until the desired
air distribution setting is displayed in the climate
control system controls. To have the air distribu-
tion regulated automatically, press one of the
knobs @).
SYNC Synchronization
Use the rocker switch (5) to select the function.
When synchronization is switched on, the set-
tings for the driver's side are applied to the front
passenger's side and the rear (except for seat
heating/ventilation*). If the settings on the front
passenger's side or in the rear are changed, the
synchronization will automatically switch off and
3-ZONE will appear in the display.
SET REAR Function
Use the rocker switch G) to select the function.
When the function is switched on, you can adjust
all settings for the rear using the climate control
system controls in the cockpit. The rear climate
control system controls cannot be operated at
the same time. This function switches off auto-
matically after a certain period of time or after
leaving the menu.
a Seat heating*
The seat heating temperature can be set at mul-
tiple levels. Press the w button once to switch on
the highest level. Press the button again to de-
crease the temperature one level at a time. The
seat heating is off when all of the LEDs are off.
#4 Seat ventilation*
The seat ventilation intensity can be set to multi-
ple levels. Press the £J button once to switch on
the highest level. Press the £4 button again to
decrease the intensity one level at a time. The
seat ventilation is off when all of the LEDs are off. >

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

Driving

ient and environmentally-friendly

9g
Your driving style greatly influences the amount
of fuel and energy consumed, the environmental
impact, and the wear on the engine, brakes, and
tires. Note the following information for efficient
and environmentally-conscious driving:
— Turn off electrical equipment that is not need-
ed, for example seat heating*.
— Anticipate upcoming traffic situations while
driving to avoid unnecessary acceleration and
braking.
— Avoid driving at high speeds.
— Avoid adding extra weight to the vehicle if pos-
sible, for example by not leaving roof racks or
bike racks installed when they are not needed.
— Make sure the tire pressure is correct.
— Have maintenance performed regularly on the
vehicle.
— Do not let the engine run while the vehicle
parked.
— Do not drive with winter tires during the summ-
er.
— Use the Start/Stop system.
— Utilize the engine braking effect.
— Avoid driving short distances when possible.
@® Tips
The amount of noise produced by the vehicle
can increase significantly when driving with a
sporty style. Show respect to others around
you and the environment with the way you op-
erate your vehicle, especially at night.
ME ey
Your vehicle is equipped with an intelligent ener-
gy management system for distributing electrici-
ty. This significantly improves the starting ability
and increases the vehicle battery life.
@) Tips
— If you drive short distances frequently, the
vehicle battery may not charge enough
while driving. As a result, convenience func-
tions for electrical equipment may be tem-
porarily unavailable.
102
— The vehicle battery will gradually drain if
the vehicle is not driven for long periods of
time, or if electrical equipment is used
when the engine is not running. To ensure
that the vehicle can still be started, the
electrical equipment will be limited or
switched off.
I Cr Te (1
B Drive system: malfunction! Safely stop vehi-
cle
There is a malfunction in the drive system. The
brake
booster and the power steering may stop
working. Stop the vehicle immediately or as soon
as possible and do not continue driving. Secure
the vehicle against rolling before exiting the vehi-
cle > page 96. Have the problem corrected by an
authorized Audi dealer or authorized Audi Service
Facility.
B Drive system: malfunction! Please contact
Service
There is a malfunction in the drive system. Drive
slowly to an authorized Audi dealer or authorized
Audi Service Facility to have the malfunction cor-
rected.
Start/Stop system
Applies to: vehicles with Start/Stop system
The Start/Stop system can help increase fuel
economy and reduce CO2 emissions.
In Start/Stop mode, the engine shuts off auto-
matically when stopped, for example at a traffic
light. If certain conditions are met, the engine
may stop before the vehicle has come to a com-
plete stop. If you press the accelerator pedal
when this happens, the engine will start and driv-
ing power will be transmitted.
The ignition and important assist systems such
as the brake booster will remain available during
the Stop phase. The engine will restart automati-
cally when needed.
The Start/Stop system is automatically activated
once the ignition is switched on.