2021 AUDI A4 climate control

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

Quick access

Quick access
Cockpit

[RAZ-0886.


Fig. 1 Cockpit
@ Door handle @ Lockable glove compartment with:
@ Central locking switch ........... 35 — Valet Parking function ......... 48
@ Memory function buttons ........ 71. ~@ Front passenger's airbag ........ 71
@ Vent GO; KSC Sia auc 2 x wee so ews 2 ae 71
© Lever for: @® Climate control system .......... 90
—Turn signals and high beams .... 52. @@ Depending on equipment, buttons
— High beam assistant .......... 52 for:
— Audi active lane assist ......... 141 drive SELCCE cassis «6 sossan © 4 esr © 6s 110
— Traffic jam assist ............. 138 —Start/Stop system ............ 102
© Multifunction steering wheel with: — Electronic Stabilization Control
_iHorn' bet (ES@) we < = ween «seme se ee zea 114
—Driver's airbag .............0- 71 — Panassist ws 5 2 aque « s quae x # me 159
— Operating buttons ............ 13, 29 — Parking system ..........-..+. 150
—Shift paddles ................ 99 — FUL Fold aSSi8t cies 2 4 onus oo ees 108
@ Instrument cluster ............. 12 — Center display .............0 0s 19
Reset trip odometer ............ 15 @ Socket .......seeseeeee eens 82
© Windshield washer system lever .. 58 @ Cupholder ........ 0.0 seer eee 82
@ Emergency flashers ............ 53 @© MMI0n/Off button ............. 19,29>
@ Center display ................. 19

8W1012721BC
Opening and closing

respective rear door and turn the key switch
with the mechanical key in the direction of the
arrow or opposite the direction of the arrow
> fig. 37. This will disable the function of the
rear door handle.
> Make sure the child safety lock is working by
checking the function on the rear power win-
dow switch and door handle.
Applies to: vehicles with power child safety locks:
It is not possible to operate the rear climate con-
trol system* when the child safety lock is activat-
ed. The SET REAR function allows you to adjust
all settings in the rear using the climate control
system controls in the cockpit.
Message in the instrument cluster display
@/ Child safety lock: malfunction! Please
contact Service
There is a malfunction in the child safety lock.
Press the @/ & button again.
If the message stays on, drive immediately to an
authorized Audi dealer or authorized Audi Service
Facility to have the malfunction repaired.

Z\ WARNING
— Observe the safety precautions > page 33.
—A malfunction in the child safety lock could
allow
the rear doors to be opened from the
inside, which increases the risk of an acci-
dent.

Power windows
Opening and closing the windows

RAZ-0723


Fig. 38 Driver's door: power window switch
Power window switches:
@ Left front door
® Right front door
@® Left rear door
@ Right rear door
Opening and closing the windows
The driver can control all power windows. All
power window switches are equipped with a two-
stage function:
> To open or close the window completely, press
the switch down or pull the switch up briefly to
the second level. The operation will stop if the
switch is pressed or pulled again.
> To select a position in between opened and
closed, press or pull the switch to the first level
until the desired window position is reached.
Correcting a malfunction in the one-touch
up/down function
You can reactivate the one-touch up/down func-
tion if it malfunctions.
> Pull the power window switch up until the win-
dow is completely raised.
> Release the switch and pull it up again for at
least one second.

Z\ WARNING
— Observe the safety precautions > page 33.
— Never close the windows carelessly or in an
uncontrolled manner, because this increases

the risk of injury.

G) Tips
— You can still open and close the windows for
several minutes after turning the ignition
off. The power window switch is not disa-
bled until the driver's door or front passeng-
er's door is opened.
— The power windows are equipped with pinch
protection. The automatic window may stop
closing and will open all the way again even
if no obstacle is detected. Pull the power
window switch up until the window is com-
pletely raised.
4s

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

3-zone deluxe automatic climate control
Applies to: vehicles with 3-zone deluxe automatic climate control system

B8W-0137



Fig. 91 3-zone deluxe automatic climate control system: cockpit controls

B8W-0138


Fig. 92 3-zone deluxe automatic climate control system: rear controls
Press the knobs, buttons or rocker switches to Observe the safety precautions > A\ in Descrip-
turn the functions on or off. When the function is tion on page 90.
switched on, the LED in the respective button or
knob turns on.

OFF] Climate control system

The [OFF] button switches the climate control
system on or off. It also switches on when you
press another button or a knob. Airflow from out-
side is blocked when the climate control system
is switched off.

Some rocker switches can be assigned with multi-
ple functions. The various functions can be acti-
vated by pressing on the switch multiple times.
On right-hand drive vehicles*, the functions of
the rocker switches @) and ©) are reversed.
The driver and front passenger settings can be A/C / A/C MAX* Cooling mode
adjusted separately. You can adjust the settings You can switch the respective cooling mode on
for the rear of the vehicle using the controls in and off with the rocker switch @).
the rear > fig. 92.
91

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

Wheels

under controlled conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one
and one half (1 1/2) times as well on the govern-
ment course as a tire graded 100.
The relative performance of tires depends upon
the actual conditions of their use, however, and
may depart significantly from the norm due to
variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, Band C. Those grades represent the tire's
ability to stop on wet pavement as measured un-
der controlled conditions on specified govern-
ment test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance
oA.
Temperature
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions on
a specified indoor laboratory test wheel.
Sustained high temperature can cause the mate-
rial of the tire to degenerate and reduce tire life,
and excessive temperature can lead to sudden
tire failure > A.
The grade C corresponds to a level of perform-
ance which all passenger car tires must meet un-
der the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel than
the minimum required by law.

Z\ WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning or peak traction charac-
teristics.

252

AN WARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.

ZA\ WARNING
Temperature grades apply to tires that are
properly inflated and not over or underinflat-
ed.

Tire pressure monitoring
system
(1) General notes
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat-
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la-
bel, you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system
(TPMS)
that illuminates a low tire pressure tell-
tale when one or more of your tires is significant-
ly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a signifi-
cantly under-inflated tire causes the tire to over-
heat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop-
ping ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re-
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the level
to trigger illumination of the TPMS low tire pres-
sure telltale.