
Lights and Vision
To prevent inaccurate compass readings, do
not bring any remote controls, electrical devi-
ces or metallic objects near the mirror.
B42-0405
Fig. 55 Magnetic zone map
The magnetic zone must be adjusted correctly for > Press and hold the button @ until a C
the compass to read accurately. => page 57, fig. 54 appears in the rearview mir-
ror.
> Drive in a circle at about 6 mph (10 km/h) until
a direction is displayed in the interior rearview
mirror.
> Press and hold the button @ > page 57, fig. 54
until the number of the magnetic zone appears
in the interior rearview mirror.
> Press the button @ repeatedly to select the
correct magnetic zone. The selection mode
turns off after a few seconds.
To reduce the risk to yourself and other driv-
ers, calibrate the compass in an area where eat hark ree
there is no traffic. Applies to: vehicles with digital compass
If the display is incorrect or inaccurate, the com-
pass must be recalibrated.
58

Sitting correctly and safely
Facility and have the airbag system inspect-
ed.
—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
that PASSENGER AIR BAG OFF 3%; re-
mains on while driving. If
PASSENGER AIR BAG OFF #, does not
turn on, remove the child safety seat and in-
stall it again according to the child safety
seat manufacturer instructions. If
PASSENGER AIR BAG OFF &%; 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.
Fluids, electronic devices, or mechanical
damage on the front passenger's seat may
cause the front passenger seat occupant de-
tection to malfunction. The system may
then incorrectly detect if the front passeng-
er's seat is occupied. As a result, it could de-
ploy the front passenger’s airbag incorrectly
or fail to deploy it, which increases the risk
of serious or fatal injury. Make sure that no
wet objects (such as a wet hand towel) and
no fluids come into contact with the front
passenger's seat cushion. If the front pas-
senger's seat becomes wet, dry it immedi-
ately. Make sure no electronic devices (such
as a laptop or a retrofitted seat heater) are
on the front passenger's seat. Do not trans-
port any objects on or under the front pas-
senger's seat.
Seat covers or protective covers may prevent
the advanced airbag system from correctly
detecting child safety seats or passengers in
the front passenger's seat. You must not use
seat covers or protective covers on the front
passenger's seat that are not specifically ap-
proved for use on Audi seats with an ad-
vanced airbag system.
72
Child safety seats
General information
When installing and using child safety seats, fol-
low the information in this Owner's Manual, the
applicable state and federal regulations, and the
manufacturer instructions for the child safety
seat.
You can also obtain useful and current informa-
tion from the following sources:
U.S. National Highway Traffic Safety Adminis-
tration
http://www.nhtsa.gov
http://www.safercar.gov
National SAFE KIDS Campaign
http://www.safekids.org
SafetyBeltSafe U.S.A.
http://www.carseat.org
Transport Canada Information Centre
http://www.tc.gc.ca/roadsafety
Audi Customer Experience Center
https://www.audiusa.com/help/contact-us
https://www.audi.ca/ca/web/en/models/layer/
contact.html
ZA WARNING
To reduce the risk of serious or fatal injuries,
children must always be secured in the vehicle
with a child safety seat that is appropriate for
their body size, weight, and age.
— Children ages 12 and under must be trans-
ported using the appropriate child safety
seat. Note differences in regulations be-
tween states and countries.
— Child safety seats secured incorrectly in the
vehicle may cause serious or fatal injuries in
the event of an accident. Always secure the
child safety seat according to the manufac-
turer instructions.
— Children or babies must not under any cir-
cumstances be held on the lap of the driver
or other passengers while driving.
— Do not secure more than one child in a child
safety seat.

Sitting correctly and safely
ZA WARNING
— A safety belt that is not locked by the belt
retractor lock or a locking device cannot se-
cure a child safety seat while driving or in
the event of an accident, which increases the
risk of fatal injury. Always make sure the
belt retractor lock on the safety belt is acti-
vated if the child safety seat manufacturer
instructions require it.
— Due to the risk of fatal injury, never place a
rear-facing child safety seat on the front
passenger's seat when the front passenger's
airbag is switched on.
— For the child safety seat to offer the maxi-
mum protection, it is especially important
to route the vehicle safety belt correctly. Al-
ways follow the instructions from the child
safety seat manufacturer for routing the
safety belt correctly. Incorrectly fastened
safety belts can cause injuries, even during
minor accidents.
RAZ-0093
Additionally securing a child safety seat to
the top tethe
RAZ-0325)
Fig. 71 Version (@) rear shelf / Version @) rear backrest: top
tether anchors for securing a child safety seat with an up-
per strap
76
Fig. 72 Version @ rear shelf / Version @ rear backrest: se-
curing the upper strap on the top tether anchor
Follow the safety precautions > page 72.
There is a top tether anchor behind every seat in
the rear bench seat to additionally secure a child
safety seat with an upper belt.
> Move the head restraint behind the child safety
seat upward.
> Applies to: version 1: Fold the cover for the top
tether anchor upward.
> Guide the upper belt on the child safety seat
under the head restraint or along both sides of
it and toward the rear (depending on the child
safety seat model).
> Fasten the belt to the top tether anchor
=> fig. 72. While doing this, make sure the belt
is not twisted and is not running over any sharp
edges.
> Secure the child safety seat according to the
child safety seat manufacturer instructions.
> Pull the belt tightly so that the child safety seat
rests at the top of the seat backrest.
» If necessary, move the head restraint behind
the child safety seat downward.

8W1012721BB
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 and re-
moves humidity from the air in the vehicle interi-
or. 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.
In all heating mode functions, except for defrost,
the blower only switches to a higher speed once
the refrigerant has reached a sufficient tempera-
ture.
Pollutant filter
The pollutant filter removes pollutants such as
dust and pollen from the air.
(@) For the sake of the environment
Energy can be saved by switching off the A/C
mode.
@) Tips
—To prevent interference with the heating
and cooling output and to prevent the win-
dows 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.
—The climate control settings are automati-
cally stored and assigned to the vehicle key
that is in use.
87

Warm and cold
3-zone deluxe automatic climate control
Applies to: vehicles with 3-zone deluxe automatic climate control system
B8W-0137
Fig. 96 3-zone deluxe automatic climate control: cockpit controls
B8W-0138
Fig. 97 3-zone deluxe automatic climate control system: rear controls
Press the knobs, buttons or rocker switches to
turn the functions on or off. When the function is
switched on, the LED in the respective button or
knob turns on > fig. 96.
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
adjusted separately. You can adjust the settings
for the rear of the vehicle using the controls in
the rear > fig. 97.
838
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.
A/C} / [A/C MAX|* / [A/C eco}* Cooling mode
You can switch the respective cooling mode on
and off with the rocker switch @).
The cooling mode only functions with the blower
turned on. The air is cooled and dehumidified in
cooling mode. Otherwise the windows can fog >
![AUDI S4 2020 Owners Manual 8W1012721BB
Warm and cold
up. 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 AUDI S4 2020 Owners Manual 8W1012721BB
Warm and cold
up. 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](/manual-img/6/57558/w960_57558-90.png)
8W1012721BB
Warm and cold
up. 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.
If you activate [A/C eco}*, the climate control sys-
tem will operate in energy-saving mode.
<= 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\.
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. 97.
= 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-
sure a continuous exchange of air inside the vehi-
cle. To have the blower regulated automatically,
press one of the knobs (4).
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 (a).
SYNC] Synchronization
Use the rocker switch ©) 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*). When the settings on the
front passenger's side or in the rear are changed,
the synchronization is automatically switched off
and 3-ZONE appears in the display.
SET REAR] Function
Use the rocker switch () 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.
#/ 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 a button again to de-
crease the temperature one level at a time. The
seat heating is off when all of the LEDs are off.
#5 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 #J button again to
decrease the intensity one level at a time. The
seat ventilation is off when all of the LEDs are off.
& Defrosting
The windshield and side windows are defrosted
or cleared of condensation as quickly as possible. >
89

Warm and cold
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
& 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 @ 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.
ZA 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
using the seat heating* function. To reduce
the risk of injury, these individuals should
not use seat heating”.
90
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.
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:
VEHICLE > Climate control.
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
Siem eRe
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.
G) Tips
The steering wheel heating settings are stor-
ed automatically and assigned to the vehicle
key that is in use.
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.

Driving
— If you leave the vehicle, switch the ignition
off and take the key with you. This is espe-
cially important when leaving persons or an-
imals in the vehicle. Otherwise, the vehicle
could start unintentionally, the parking
brake could release, or electronic equipment
could activate, which increases the risk of an
accident.
— No persons or animals should be left in a
locked vehicle. Locked doors make it more
difficult for emergency workers to enter the
vehicle, which puts lives at risk.
— If you do not begin driving immediately af-
ter releasing the brake pedal, your vehicle
may begin to roll backward. Press the brake
pedal or set the parking brake immediately.
@) Note
If you have to stop on an incline, always press
the brake pedal to hold the vehicle in place to
reduce the risk of the vehicle rolling back-
ward. Do not try to hold the vehicle in place
by pressing and holding the accelerator pedal.
The transmission can overheat, which increas-
es the risk of damage.
Hill hold assist
If you take your foot off of the brake pedal when
driving on hills, the braking force will be held for
several seconds. At that time, you can start driv-
ing without the vehicle rolling backward.
Requirement: the driver's door must be closed,
the engine must be on, and the vehicle must be
traveling uphill.
> To activate hill hold assist, press and hold the
brake pedal for several seconds while the vehi-
cle is stationary.
ZA\ WARNING
— If you do not begin driving immediately af-
ter releasing the brake pedal, your vehicle
may begin to roll backward. Press the brake
pedal or set the parking brake immediately.
— The hill hold assist cannot hold the vehicle
on inclines in every scenario (for example,
on slippery or icy ground).
94
Gears and driving programs
@Q—
2)—*
RAZ-0410]|
i
R
t
N
tt.
D/S
Fig. 99 Center console: selector lever
The automatic transmission shifts automatically
depending on the selected gear and the current
driving style. When driving with a moderate driv-
ing style, upshifting early and downshifting late
will help to improve fuel economy. When driving
with a sporty driving style, the transmission per-
mits higher RPMs.
The gears are displayed next to the selector lever.
— P (Park)
— R (Reverse)
—N (Neutral)
—D (Drive)
Selecting a gear
Requirement: the ignition must be switched on.
— Bring the vehicle to a full stop and press the
brake pedal.
— Press the release button (@) on the selector lev-
er.
—To select the nearest gear, move the selector
lever forward or back until you feel the first
pressure point.
—To skip a gear (for example, move from “D” to
“R”), move the selector lever past the pressure
point in the desired direction.
— The label next to the selector lever for the se-
lected gear will light up.
“N” (Neutral) gear
In the “N” gear, power is not transmitted to the
driving wheels. Use the “N” gear in a car wash
(with conveyor belts), for example.