2020 AUDI S4 key battery

8W1012721BB
Quick access



Windshield wipers
=> page 57
Parking aid plus
=> page 148
Park assist
=> page 157
Rear cross-traffic assist
=>page 152
Tire pressure
=> page 245
Tire pressure
=>page 245
Bulb failure indicator
=> page 50
Adaptive light
=> page 50
Light/rain sensor
=> page 50, > page 57
Door lock
=> page 32
Battery in vehicle key
=> page 36
Distance warning
=> page 136
Side assist
=> page 145;
Exit warning
=>page 145
Audi adaptive cruise control
=> page 134,
Traffic jam assist
=> page 134
Steering intervention request
=> page 135, > page 138
Audi active lane assist
=> page 139
Audi pre sense
=> page 143
Emergency call function
=>page 175

Other indicator lights
Start/Stop system
=> page 99
Turn signals
= page 49
Low beam headlight
=> page 48
Parking light
=> page 48
Cruise control system
=> page 123
Cruise control system
=> page 123
Efficiency assist
=> page 124
Efficiency assist
=>page 124
Efficiency assist
=>page 124
Efficiency assist
=>page 124
Efficiency assist
>page 124
Efficiency assist
=>page 124
Audi adaptive cruise control
> page 128
Audi adaptive cruise control
=> page 128
Audi adaptive cruise control
=>page 128
Audi adaptive cruise control
=> page 128
Audi adaptive cruise control
=>page 128
Traffic jam assist
=> page 134
High beams
=>page 49
High beam assistant
=> page 49

8W1012721BB
Opening and closing

authorized Audi Service Facility for more in-
formation.
@ Tips
— The vehicle key function can be temporarily
disrupted by interference from transmitters
near the vehicle working in the same fre-
quency range (such as a mobile device or ra-
dio equipment). Always check if your vehicle
is locked.
— Applies to: MMI: You can view the number
of keys programmed to the vehicle by se-
lecting on the home screen: VEHICLE > Set-
tings & Service > Vehicle information.
— For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
=>page 275.
Unlocking and locking the vehicle
> To lock the vehicle, close the doors and touch
the outer sensor on the door handle once
=> fig. 27. Do not grasp the door handle while
locking the vehicle, or else the vehicle will not
lock. The door cannot be opened for a brief pe-
riod directly after locking it. This way you have
the opportunity to check if the doors locked
correctly.

Z\ WARNING
Follow the safety precautions > page 30.


B8W-0148


Fig. 27 Door handle: sensor for locking
You can unlock and lock your vehicle using either
the buttons on the vehicle key or using the sen-
sors* in the door handles. The settings in the
MMI specify which doors will unlock > page 31.
Unlocking or locking using the vehicle key
buttons
> To unlock the vehicle, press the G@ button
=> page 34, fig. 26.
> To lock the vehicle, press the & button once.
Unlocking or locking using the sensors
Applies to: vehicles with convenience key
> To unlock a door or the luggage compartment
lid, grasp the door handle or luggage compart-
ment lid handle.
G) Tips
— Only use the vehicle key when you can see
the vehicle.
— The vehicle can only be locked when the "P”
selector lever position is engaged.
— Do not use the vehicle key to lock and un-
lock when you are inside the vehicle. Other-
wise, you could trigger the anti-theft
alarm*. If this happens, press the @ unlock
button.
G@) Tips
Applies to: vehicles with convenience key
— When unlocking or locking the vehicle, the
convenience key cannot be more than ap-
proximately 4 feet (1.5 m) away from the
door handle or luggage compartment.
— Unlocking with the convenience key (keyless
access) can be deactivated in the MMI sys-
tem > page 31.
—To prevent the vehicle battery from dis-
charging, the energy management gradual-
ly switches off convenience functions that
are not needed. You then may no longer be
able to unlock your vehicle with the sensors.
35

Opening and closing


RAZ-0722



BFV-0277


Fig. 29 Vehicle key (rear side): removing the battery holder
LED in the vehicle key
The LED @) indicates the vehicle key function.
> If you press a button briefly, the LED blinks
once.
> If you press and hold a button (convenience
opening/closing), the LED blinks several times.
> If the LED does not blink, the vehicle key bat-
tery is drained. Replace the battery in the vehi-
cle key.
Replacing the vehicle key battery
> Press the release buttons (2) > fig. 28 and re-
move the mechanical key.
> Press the release buttons (3) > fig. 29 while
pulling the battery holder out of the vehicle key
in the direction of the arrow.
> Insert the new battery with the “+” facing
down.
» Slide the battery holder carefully into the vehi-
cle key.
> Insert the mechanical key.
36
@) For the sake of the environment
Discharged batteries must be disposed of us-
ing
methods that will not harm the environ-
ment. Do not dispose of them in household
trash.
(i) Tips
Replacement batteries for the vehicle key
must meet the same specifications as the
original battery.
Luggage compartment
lid
General information
ZA\ WARNING
— Applies to: vehicles with anti-theft alarm
system: When the vehicle is locked from the
outside, no one - especially children - should
remain in the vehicle, because the windows
can no longer be opened from the inside
= page 33. Locked doors make it more diffi-
cult for emergency workers to enter the ve-
hicle, which puts lives at risk.


— Always close and lock the luggage compart-
ment lid and the doors when the vehicle is
not in use. Otherwise someone such as a
child could enter the vehicle through the
luggage compartment and become locked
inside it. To reduce the risk of injury, do not
allow children to play in or around the vehi-
cle.
—To reduce the risk of injuries by pinching,
make sure that no one is in the operating
area of the luggage compartment lid, in-
cluding the hinge areas and the upper and
lower edge of the luggage compartment lid.
— After closing the luggage compartment lid,
make sure that it is latched. The luggage
compartment lid could open suddenly while
driving, which would increase the risk of an
accident.
— Never drive with the luggage compartment
lid ajar or open, because poisonous gases

Opening and closing

Automatic luggage compartment li
Applies to: vehicles with automatic luggage compartment lid


Fig. 31 Luggage compartment lid: @ closing button*, @)
lock button* (vehicles with convenience key*)
The luggage compartment lid can be opened and
closed automatically > A\ in General informa-
tion on page 36.
Opening the luggage compartment lid
> When the ignition is switched off, press the 4S
button on the vehicle key twice. Or
> Select the "P" selector lever position and pull
the <3 switch* in the driver's door. Or
> Applies to: vehicles with convenience key: Press
the handle in the luggage compartment lid.
The vehicle key cannot be more than approxi-
mately 4 feet (1.5 m) away from the luggage
compartment.
Closing the luggage compartment lid
> Press the <3 button in the luggage compart-
ment lid. Or
> Press the handle in the luggage compartment
lid. Or
> Press the luggage compartment lid downward
slightly. Or
> When the ignition is switched on, pull the <
switch in the driver's door > page 37, fig. 30
until the luggage compartment lid is closed. Or
> Applies to: vehicles with convenience key: Press
and hold the Zs button on the vehicle key while
the ignition is switched off until the luggage
compartment lid closes. Make sure there is
enough distance (maximum of approximately 9
feet (3 m)) between you and the luggage com-
partment lid. Or
> Applies to: vehicles with convenience key:
While the ignition is switched off, press the
38
< / f* button in the luggage compartment
lid. The vehicle key must not be more than ap-
proximately 4 feet (1.5 m) away from the lug-
gage compartment and it must not be inside
the vehicle. If you press the f* button, then
the vehicle will lock.
Storing the luggage compartment lid
opening position
Applies to: allroad
The position must be at a certain height or higher
to store.
> Bring the luggage compartment lid into the de-
sired open position. If you want to move the
luggage compartment lid to a lower position,
move it slowly in small increments; otherwise,
the luggage compartment lid will close auto-
matically.
> Press and hold the <3 button in the luggage
compartment lid for at least four seconds to
store the new open position. A visual and audio
signal will follow.
> To set a higher open position, wait at least five
seconds and then carefully press the luggage
compartment lid upward.
> Press and hold the <3 button again for at least
four seconds to store the new open position.
The automatic opening or closing will stop if:
— You press the < button or press the handle in
the luggage compartment lid again Or
— If something blocks the luggage compartment
lid or makes it difficult for the lid to move.
If you press the <3 button or press the handle in
the luggage compartment lid again, the luggage
compartment lid will open again.

ZX WARNING
Follow the safety precautions > page 36.
@ Tips
The luggage compartment lid can be operat-
ed manually if the vehicle battery is low. It is
necessary to use more force when doing this.
Move the lid slowly to reduce the amount of
force needed.

Stowing and using

Stowing and using
Power sources
When the ignition is switched on, you may be
able to use the power sources for external devi-
ces, depending on the vehicle equipment.
12 volt sockets
You can connect electrical accessories to the 12
volt sockets. The power usage must not exceed
120 watts.
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 input
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.
— Disconnect the connectors from the power
sources carefully to reduce the risk of dam-
aging them.
78
Cup holders


Fig. 74 Rear center armrest*: cup holders
Your vehicle has 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.

ZX 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.

@) 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 areas and
compartments
Depending on the vehicle equipment, there may
be a variety of storage areas, compartments, and
retainers at various locations in the vehicle. >

Driving

Driving
Starting the vehicle
eta
Applies to: vehicles with convenience key



Fig. 98 Center console: starting the engine
Requirement: the key must be in the vehicle.
Starting the engine
> Press and hold the brake pedal.
> Press the [START ENGINE STOP] button. The
engine will start.



Equipment that uses a lot of electricity is switch-
ed off temporarily when you start the engine. If
the engine does not start immediately, the start-
ing procedure stops automatically after a short
time. If this is the case, repeat the starting pro-
cedure after approximately 30 seconds.
Stopping the engine
> Bring the vehicle to a full stop.
> Press the [START ENGINE STOP] button. The
engine will switch off.



Applies to: vehicles with steering lock: The steer-
ing is locked when you turn off the engine and
open the driver's door. The steering lock helps
prevent vehicle theft. “P” must be engaged on
vehicles with an automatic transmission.
Stopping the engine in an emergency
If necessary in an emergency, the engine can also
be stopped while driving using the emergency off
function*.

> Press the [START ENGINE STOP] button twice in
a row or press and hold it one time.

92
Switching on and off
If you would like to switch the ignition on or off
without starting the engine, follow these steps:

> Press the [START ENGINE STOP] button without
pressing the brake pedal.

Switching the ignition off automatically
To prevent the vehicle battery from draining, the
ignition and possibly the exterior lighting may
switch off automatically.
Requirements:
— The Start/Stop system must have stopped the
engine.
— You must have left the vehicle for longer than
30 seconds.
— The ignition must be switched on.
Among other indicators, the system detects that
you have left the vehicle based on the following
factors:
— The driver's door has been opened.
— The driver's safety belt has been unbuckled.
— The brake pedal is not being pressed.
The ignition will also be switched off after 30 mi-
nutes or if you lock the vehicle from the outside.

ZA\ WARNING
—To reduce the risk of asphyxiation, never al-
low the engine to run in confined spaces.
— Never turn off the engine before the vehicle
has come to a complete stop. Switching it
off before the vehicle has stopped may im-
pair the function of the brake booster and
power steering. You would then need to use
more force to steer and brake the vehicle.
The fact that you cannot steer and brake as
usual may increase the risk of accidents and
serious
injuries.
— Always select the “P” selector lever position
when parking the vehicle; otherwise, the ve-
hicle could roll away.

@) Note
— Avoid high engine speed, full throttle, and
heavy engine load if the engine has not

8W1012721BB
Driving

reached operating temperature yet. You
could damage the engine.
— If the engine has been under heavy load for
an extended period of time, heat builds up
in the engine compartment after the engine
is switched off and there is a risk of damag-
ing the engine. For this reason, let the en-
gine run at idle for approximately two mi-
nutes before shutting it off.
@ Tips
— Brief noises are normal when starting and
stopping the vehicle and are no cause for
concern.
— For up to 10 minutes after stopping the en-
gine, the radiator fan may turn on again au-
tomatically or it may continue to run, even if
the ignition is switched off.
— It may not be possible to start the vehicle in
extremely low temperatures.
— Power will be fully available once the engine
is at operating temperature.
Messages
E Engine start system: malfunction! Please
contact Service
There is a malfunction in the engine start system.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
BB Remote control key: key not detected. Is the
key
still in the vehicle?
The vehicle key was removed from the vehicle
while the engine is running. If the vehicle key is
no longer in the vehicle, you cannot switch the ig-
nition on or start the engine once you stop it. You
also cannot lock the vehicle from the outside.
Remote control key: hold back of key
against the designated area. See owner's man-
ual
The battery in the vehicle key may be drained or
there may be a malfunction. To start the vehicle,
you must also hold the vehicle key against the lo-
cation shown ?) > page 92, fig. 98.
If the malfunction remains, drive immediately to
an authorized Audi dealer or authorized Audi
Service Facility to have the malfunction correct-
ed.
When driving

Starting to drive, stopping, and parking
Starting from a stop
>» Press and hold the brake pedal.
> Start the engine.
> Select a gear.
> Release the parking brake.
> Release the brake pedal. The vehicle may roll.
> Press the accelerator pedal to accelerate.
Stopping and parking
> Bring the vehicle to a full stop and press and
hold the brake pedal.
> Set the parking brake.
> Select the “P” selector lever position to secure
the vehicle from rolling away.
> Turn the steering wheel when parking on in-
clines so that the wheels will roll into the curb
if the vehicle starts moving.
> Switch off the ignition before leaving the vehi-
cle.
On hills, activate the parking brake first and then
shift into the "P" selector lever position. This pre-
vents too much stress from being placed on the
locking mechanism.

ZA\ WARNING
— Always set the parking brake when leaving
your vehicle, even if for a short period of
time. If the parking brake is not set, the ve-
hicle could roll away, increasing the risk of
an accident.
— Do not leave your vehicle unattended while
the engine is running, because this increases
the risk of an accident.
— If the parking brake is set, it can release au-
tomatically when the accelerator pedal is
pressed. To reduce the risk of an accident,
do not inadvertently press the accelerator
pedal and always shift into “P” when the ve-

hicle is stopped.

93

8W1012721BB
Audi connect

Adding a location: select: In a new city > enter
the desired location.
> To permanently set weather for a location,
press on a location.
> To always show the weather based on the vehi-
cle position, press on the crosshairs.
Requirement: route guidance must be active.
> To show the weather at the destination, press
on B.
Removing a location: select: Z > one or more lo-
cations or Select all > Delete.
Online news
» Applies to: MMI: Select on the home screen:
NEWS.

ZA\ WARNING
Always follow the information found in > A\
in General information on page 169.

@) Note
Always follow the information found in >@ in
General information on page 169.
Functions on demand
Displaying purchased functions
Applies to: vehicles with functions on demand or display of
purchased functions
Depending on the country and vehicle equip-
ment, you can purchase functions through a
myAudi account using functions on demand at
any time.
The following options are available for displaying
purchased functions in the vehicle.
> Applies to: MMI: Select on the home screen:
PURCHASES.
@ Tips
— Equipment installed at the factory may be
displayed as purchased functions.

)) Depends on the country and equipment. These services
are available for a limited time.
— At the time this manual was printed, func-
tions on demand was a planned function.
Functions on demand is not available in your
vehicle.
Audi connect vehicle
control services
Applies to: vehicles with Audi connect vehicle control
With Audi connect vehicle control services )), you
can utilize various services using the myAudi app
or online at my.audi.com.

ZA WARNING
Always follow the information found in > A\
in General information on page 169.
G) Tips
— Accessing specific data or controlling func-
tions remotely depends on the charge level
of the vehicle battery. Therefore, these
functions only have limited availability after
switching off the ignition.
— An eSIM card establishes the Internet con-
nection for Audi connect vehicle control
services. The costs for this are included in
the price of Audi connect vehicle control
services. The mobile phone network, for ex-
ample, must be available to use these serv-
ices.
Applies to: vehicles with Audi connect vehicle control

> Register at my.audi.com.
> Set the key user > page 27.
> Install the myAudi app on your mobile device
and log in with your access information.
G) Tips
It may also be necessary to enter your 4-digit
PIN set at my.audi.com when accessing some
Audi connect vehicle control services.
171