warning light AUDI S4 2021 User Guide

Opening and closing

@ PANIC button
In an emergency, you can press the PANIC button
to trigger the alarm for the anti-theft alarm sys-
tem. The vehicle horn and emergency flashers
will turn on if you trigger the alarm.

PANIC —To trigger the alarm, press the but-
ton @) © fig. 26.
—To turn the alarm off, press the
again.

PANIC button
Lost key/replacing a key
If a vehicle key is lost, contact an authorized Audi
dealer or authorized Audi Service Facility. Have
this vehicle key deactivated. It is important to
bring all keys with you.
If a key is lost, you should report it to your insur-
ance company.
Electronic immobilizer
The immobilizer prevents unauthorized use of
the vehicle.
In some cases, it may not be possible to start the
vehicle if there is a vehicle key from a different
vehicle manufacturer on the key chain.
Data in the vehicle key
When driving, service and maintenance-relevant
data is continuously stored in your vehicle key. An
authorized Audi dealer or authorized Audi Service
Facility can read out this data and tell you about
the work your vehicle needs.

ZA\ WARNING
Observe the safety precautions > page 33.

@) Note
Protect the key against high temperatures
and direct sunlight.
@ For the sake of the environment
XE Do not dispose of vehicle keys in household
trash. They contain materials that can be re-
cycled. Contact an authorized Audi dealer or
authorized Audi Service Facility for more in-
formation.
38
G) 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 selecting
on the home screen: VEHICLE > Settings &
Service > Vehicle information.
— The system complies with United States FCC
regulations and ISED regulations
=> page 284.
Unlocking and locking the vehicle


_—.
Seis

Fig. 27 Door handle: sensor for locking
Depending on the vehicle equipment, you may
have various options for unlocking and locking
your vehicle. The settings in the MMI specify
which doors will unlock > page 34.
Unlocking or locking using the vehicle key
buttons
> To unlock the vehicle, press the @ button
=> page 37, 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.
> To lock the vehicle, close the door and touch
the 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 >

8W1012721BC
Opening and closing

— Applies to: vehicles with fixed rear backr-
ests: The luggage compartment lid can be
unlocked from the inside in an emergency
=> page 44.
Opening and clo
compartment lid
e luggage
2 3 S z
= zt a

Fig. 30 Driver's door: opening the luggage compartment
lid
Opening the luggage compartment lid
> Applies to: vehicles without convenience key:
Unlock the vehicle or the luggage compartment
lid using the @/ As button on the vehicle key
and press the handle in the luggage compart-
ment lid. 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. Or
> When the ignition is switched off, press and
hold the As button on the vehicle key twice. Or
> Engage the "P" selector lever position and pull
the < button* in the driver's door.
Closing the luggage compartment lid
» Applies to vehicles without automatic luggage
compartment lid: Use the inside grip to pull the
luggage compartment lid down and allow it to
drop gently to close it. Or
> Applies to vehicles with automatic luggage
compartment lid: Note > page 41.

ZA WARNING

Observe the safety precautions > page 40.

Automatic luggage compartment lid
Applies to: vehicles with automatic luggage compartment lid
8 3] I?) ny
| |


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 40.
Opening the luggage compartment lid
> When the ignition is switched off, press and
hold the 4s button on the vehicle key twice. Or
>» Engage the "P" selector lever position and pull
the <2 button* 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 41, fig. 30
until the luggage compartment lid is closed. Or
> Applies to: vehicles with convenience key: Press
and hold the 4s 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: When
the ignition is switched off, press the << / fi*
41
>

Opening and closing


ZN WARNING
— Applies to: vehicles with folding backrests:
If you have folded the backrests into the up-
right position, always check if the lock is se-
cured by pulling forward on the backrest.
— Applies to: vehicles with fixed backrest: Af-
ter the emergency release on the luggage
compartment lid is activated, make sure
that the bracket under the rear bench seat
engages securely in the lifting eye.

luggage compartment
fro ide in an emergency
Applies to: vehicles with fixed rear backrests
Opening
SI 2
I
a ae

Fig. 35 Inner luggage compartment lid: lever
> Press the lever in the direction of the arrow un-
til the luggage compartment lid opens.
G) Tips
Never close the luggage compartment lid us-
ing
the emergency handle.
44

Child safety lock
The child safety lock prevents the rear doors
from being opened from the inside and the rear
power windows from being operated.

RAZ-0826






Applies to: vehicles with manual child safety locks
Fig. 37 Rear door: manual child safety lock
Vehicles with 8 button
Applies to: vehicles with power child safety locks
> To activate and deactivate the child safety lock
(door handle and power window switch) for the
a rear door, press the left or right 8 button in
the driver's door @) that corresponds to that
rear door > fig. 36. The indicator light in the
button turns on/blinks.
> Make sure the child safety lock is working by
checking the function on the rear power win-
dow switch and door handle.
Vehicles with 43 button
Applies to: vehicles with manual child safety lock
> To activate or deactivate the child safety lock
for the power window switch in the rear doors,
press the & button in the driver's door (2)
> fig. 36. The indicator light in the button turns
on/blinks.
> To activate or deactivate the manual child safe-
ty lock for the rear door handle, open the >

Opening and closing

@) Note
Always close the roof when you leave the vehi-
cle and when there is precipitation to reduce
the risk of damage to the interior equipment,
particularly the electronic equipment.
G) Tips
— After switching off the ignition, the roof and
sunshades can still be operated for several
minutes as long as neither of the front
doors have been opened.
— It is not possible to open the roof when
temperatures are too low.
Valet parking
Applies to: vehicles with valet parking function
The valet parking function can protect the lug-
gage compartment from unauthorized access.

The [VALET] button for valet parking is in the
glove compartment.
You can switch the valet parking function on, for
example when someone else is parking your vehi-
cle ). The vehicle can be driven, locked, and un-
locked using the vehicle key, but access to the
luggage compartment is blocked.
> Remove the mechanical key > page 37.
> Press the [VALET] button in the glove compart-
ment. The LED in the button turns on if the
function is switched on.
> Lock the glove compartment with the mechani-
cal key.
» Applies to: vehicles with lockable pass-through
and lockable rear seat backrests: To secure the
luggage compartment from the vehicle interior,
lock the pass-through and the rear seat backr-
ests using the mechanical key > page 86,
=> page 85.
> Give your vehicle key to the service personnel
who are parking your vehicle and keep the me-
chanical key.



D_ This function is not available in all countries.
2) The possible number of hand-held transmitters depends
on the equipment.
48
The following buttons are deactivated when the
valet parking function is switched on:
— <3 Button in the driver's door
— As Button on the vehicle key
— Handle in the luggage compartment lid
If the valet parking function is switched on, a
message will appear every time the ignition is
switched on.
@) Tips
Please note that the luggage compartment
can still be accessed from the vehicle interior
in vehicles with fixed rear seat backrests or
ones that cannot be locked, even when the
valet parking function is switched on.
Garage door opener
Applies to: vehicles with garage door opener
With the garage door opener, you can activate
systems such as the garage doors, security sys-
tems or house lights from inside your vehicle.
These functions are operated in the MMI. Multi-
ple receivers can be programmed, which can con-
trol the functions of up to eight2) hand-held
transmitters.

ZA\ WARNING
— When operating or programming the garage
door opener, make sure that no people or
objects are in the area immediately sur-
rounding the equipment. People can be in-
jured or property can be damaged if struck
when closing.
— Do not allow yourself to be distracted from
traffic by the viewing and operating the dis-
plays.
(i) Tips
— If you sell your vehicle, reset all settings to
the factory default settings > page 213.

>

8W1012721BC
Lights and Vision

Lights and Vision
Exterior lighting
Switching the lights on and off


Fig. 41 Instrument panel: light switch with button
@ Light switch
Turn the light switch @ to the corresponding po-
sition when the ignition is switched on. The 2
symbol and the selected position will turn on (ex-
cept position 0).
O - The daytime running lights* will automatical-
ly turn on. In vehicles for some markets, you can
switch the automatic daytime running lights on
and off in the MMI.
AUTO - The headlights will automatically adapt to
the surrounding brightness.
300: — Parking lights
20 - Low beam headlights
When the low beam headlights or parking lights
are switched on, the corresponding Be or 200 in-
dicator light will turn on depending on vehicle
equipment.
@ All-weather lights Zo
Requirement: the light switch must be in the AU-
TO or ZO position.
The headlights automatically adjust so that there
will be less glare, for example when the road sur-
face is wet.
Automatic headlight range control
Your vehicle is equipped with automatic head-
light range control. It reduces glare for oncoming
traffic if the vehicle load changes. The headlight
range adjusts automatically.
Audi adaptive light
Applies to: vehicles with Audi adaptive light
Audi adaptive light provides better visibility when
driving in the dark. The lights are adapted to the
road conditions based on speed, such as when
driving on expressways, rural roads, at intersec-
tions, and around curves. The adaptive lights only
function when the light switch is in the AUTO po-
sition and the all-weather lights are switched off.
ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
— Automatic headlights are only intended to
assist the driver. The driver is still responsi-
ble for controlling the headlights and may
need to switch them on and off manually
depending on light and visibility conditions.
For example, fog cannot be detected by the
light sensors. So always switch on the low
beams ZO under these weather conditions


and when driving in the dark.

G) Tips
— If the vehicle battery has been discharging
for a while, the parking light may switch off
automatically. Avoid using the parking
lights for several hours.
— When using lighting equipment, the driver
is responsible for adhering to any local ap-
plicable regulations while driving and when
parking the vehicle.
— Only the front headlights turn on when the
daytime running lights are switched on*. In
vehicles in certain markets, the tail lights
will also turn on.
—Incool or damp weather, the inside of the
headlights, turn signals, and tail lights can
fog
over due to the temperature difference
between the inside and outside. They will
clear shortly after switching them on. This
does not affect the service life of the light-
ing.
51

Lights and Vision


Turn signal and high beam lever

BFV-0012


Fig. 42 Lever: switching on the turn signal and high beams
The lever operates the turn signals, the high
beams and the headlight flasher.
Turn signals @ >
The turn signal will activate when you move the
lever
into a turn signal position while the ignition
is switched on. The respective Kl or By indicator
light will flash.
@ Right turn signal
@® Left turn signal
The turn signal blinks three times if you tap the
lever (convenience turn signal).
If an indicator light blinks twice as fast as usual,
a turn signal bulb has failed. Carefully drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
High beams 20 and headlight flasher
> Move the lever to the corresponding position:
@) High beams on (vehicles with high beam assis-
tant*) > page 52
@ High beams off or headlight flasher
The
ED indicator light in the instrument cluster
will turn on.

Z\ WARNING
High beams can cause glare for other drivers,
which increases the risk of an accident. For
this reason, only use the high beams or the
headlight flasher when they will not create
glare for other drivers.

52
item luo
Applies to: vehicles with high beam assistant
The high beam assistant automatically turns the
high beams on or off depending on the surround-
ing conditions.
A camera on the rearview mirror mount can de-
tect light sources from other road users. The high
beams switch on or off automatically depending
on the position of vehicles driving ahead and on-
coming vehicles, the vehicle speed as well as oth-
er environmental factors and traffic conditions.
Activating high beam assistant
Requirement: the light switch must be in the AU-
TO position and the high beam assistant must be
switched on in the MMI > page 53.
> To activate the high beam assistant, tap the
lever forward @) > page 52, fig. 42. The 3&4 in-
dicator light will appear in the instrument clus-
ter display and the high beams will be switched
on or off automatically. The Ea indicator light
will turn on if the high beams are switched on.
Activating and deactivating the high beam
head lights manually
If the high beams did not switch on or off as ex-
pected, you may switch them on or off manually
instead:
> To activate the high beams manually, tap the
lever
forward @) > page 52, fig. 42. The & in-
dicator light will turn on.
> To deactivate the high beams manually, pull
the lever back @) > page 52, fig. 42. The high
beam assistant is deactivated.
Operating the headlight flasher
> To operate the headlight flashers, pull the lever
back @) > page 52, fig. 42. If the high beam
headlights are not switched on, the high beam
assistant will remain activated.

Z\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.

Lights and Vision

0 - Deactivates all adjustment functions.
Q/ #- Selects the left or right exterior mirror.
To adjust the mirror glass in a mirror, press the
knob in the desired direction.
GA - Heats the mirror glass depending on the
outside temperature.
©) - Folds the exterior mirrors*. To fold the mir-
rors out, turn the knob to one of the other posi-
tions. In the MMI, you can select if the mirrors
fold in automatically when you lock the vehicle
=> page 34.
Front passenger's exterior mirror tilt
function*
Requirement: the knob must be in the position
for the front passenger’s exterior mirror.
The mirror surfaces tilt slightly when reverse
gear is selected to provide a better view, for ex-
ample of the edge of the curb.
You can adjust the mirror surface by turning the
knob in the desired direction.
The mirror moves from the reversing position
back to the original position:
— When you switch the ignition off
— When you drive forward at speeds faster than 9
mph (15 km/h).
— When the knob is no longer in the position for
the front passenger exterior mirror

Z\ WARNING
Curved mirror surfaces (for example convex)
enlarge the field of vision. However, they
make objects in the mirror appear smaller and
farther away. When using these mirrors to es-
timate your distance to vehicles behind you
when changing lanes, you could estimate in-
correctly, which increases the risk of an acci-
dent.

@) Note
— Applies to: vehicles with power folding exte-
rior mirrors: If the mirror housing was
moved by outside forces (such as an impact
when maneuvering), you must use the pow-
er folding function to fold the mirror all the
56
way out. The mirrors will make a loud noise
when they latch into place. The mirror hous-
ing must not be moved back into place by
hand because this could impair the function
of the mirror mechanism.
— Applies to: vehicles without power folding
exterior mirrors: If the mirror housing was
moved by outside forces (such as an impact
when maneuvering), you must move it back
in place by hand.
— If you wash the vehicle in an automatic car
wash, you must fold the exterior mirrors in
to reduce the risk of damage to the mirrors.
Never fold power folding exterior mirrors*
by hand. Only fold them in and out using
the power controls.
@) Tips
If the power adjusting function malfunctions,
the glass in both mirrors can be adjusted by
pressing on the edge of it by hand.
Dimming the mirrors
Manual dimming rearview mirror
> Pull the lever on the bottom of the mirror back.
Automatic dimming rearview mirror
Applies to: vehicles with automatic dimming mirrors
> The interior and exterior mirrors dim automati-
cally when light shines on them, for example
from headlights on a vehicle behind you.

ZA WARNING
Applies to: vehicles with automatic dimming mirrors
— Electrolyte fluid can leak out from broken
mirror glass. This liquid can irritate the skin,
eyes and respiratory system. If there is con-
tact with the fluid, flush immediately with
plenty of water. Consult a physician if neces-
sary.
— Repeated or long-term exposure to electro-
lyte fluid can lead to irritation of the air-
ways, especially in people with asthma or
other respiratory conditions. Take deep
breaths immediately after leaving the vehi-
cle or, if this is not possible, open all of the
doors and windows as wide as possible.

Lights and Vision

Windshield wipers
Switching the windshield wipers on

RAZ-0149.



Fig. 51 Lever: rear window wiper (allroad)
> Move the windshield wiper lever S7 to the cor-
responding position:
@ Windshield wipers off
@ Rain sensor/intermittent mode. The wind-
shield wipers switch on once the vehicle speed
exceeds approximately 2 mph (4 km/h) and it is
raining. The higher the sensitivity of the rain sen-
sor that is set (switch © to the right), the earlier
the windshield wipers react to moisture on the
windshield. You can deactivate the rain sensor
mode, which switches the interval mode on. In
intermittent mode, you can adjust the interval
time using the switch ©.
> Applies to: MMI: Select on the home screen:
VEHICLE > Light & Visibility > Rain sensor.
@ Slow wiping
@ Fast wiping
@ Single wipe. If you hold the lever in this posi-
tion longer, the wipers switch from slow wiping
to fast wiping.
58
© Clean the windshield 7. The number of wipes
and afterwipes depends on how long the lever is
held in position ©).
The wipers wipe one time after several seconds of
driving to remove water droplets. You can switch
this function off by moving the lever to position
© within ten seconds of the afterwipe. The after-
wipe function is reactivated the next time you
switch the ignition on.
If you hold the lever in position ©) for longer
than half a second, the edge wiping feature will
be activated. This moves the windshield wipers
closer to the edge of the windshield and per-
forms an afterwipe to clean the residue that re-
sults from the wiping process from the edge of
the windshield. The function is available when
driving at speeds up to 75 mph (120 km/h).
The headlight washer system* operates only
when the low beam headlights are on. If you
move the lever into position ), the headlights
will be cleaned at fixed intervals.
Applies to: vehicles with rear window wiper: @) -
Wiping the rear window J. The number of wipes
depends on the windshield wiper movement.
The rear wiper automatically switches on when
the reverse gear is selected and the front wind-
shield wipers are on and running.
Applies to: vehicles with rear window wiper: ®) -
Cleaning the rear window &. The number of
wipes depends on how long the Lever is held in
position @).
This may also clean the rearview camera, depend-
ing on the vehicle equipment.

Z\ WARNING
— The rain sensor is only intended to assist the
driver. The driver may still be responsible for
manually switching the wipers on based on
visibility
conditions.
— The windshield must not be treated with
water-repelling windshield coating agents.
Under unfavorable conditions, such as wet-
ness, darkness, and when the sun is low,
these coatings can cause increased glare, >

Lights and Vision

> Remove the wiper blade from the windshield
wiper arm mount @).
> Insert the new wiper blade into the mount on
the wiper arm until it clicks into place.
> Place the wiper arm back on the windshield.
> Exit the wiper blade replacement position.

ZX WARNING
— For safety reasons, the windshield wiper
blades should be replaced once or twice
each year.
— Dirty windshield wiper blades can impair vi-
sion, which increases the risk of an accident.
©) Note
— The windshield wipers must only be lifted
up when in the wiper blade replacement po-
sition. Otherwise, you risk damaging the
paint on the hood or the windshield wiper
motor.


— You should not move your vehicle or press
the windshield wiper lever when the wiper
arms are folded up from the windshield. The
windshield wipers would move back into
their original position and could damage the
hood and windshield.
Gi) Tips
— You can also use the wiper blade replace-
ment position for other reasons, for exam-
ple if you want to protect the windshield
from icing by using a cover.
— You cannot activate the wiper blade replace-
ment position when the hood is open.
(aE Th} anging the rear wiper blade
Applies to: vehicles with rear window wiper

B8R-0380



Fig. 53 Rear window wiper: installing the wiper blade
60
Cleaning the wiper blades
> Fold the wiper arm away from the rear window.
>» For information on cleaning, see > table on
page 256.
Removing the wiper blade
> Fold the wiper arm away from the rear window.
> Remove the wiper blade from its holder.
Installing the wiper blade
> Press the wiper blade mount into the retainer.
> Fold the window wiper arm back onto the rear
window.

ZA WARNING
For safety reasons, the windshield wiper
blades should be replaced once or twice each
year.
Messages
If the & indicator light turns on, then there is a
windshield wiper malfunction. The message that
is also displayed indicates the cause and possible
solutions. If one of the messages does not turn
off, drive immediately to an authorized Audi deal-
er or authorized Audi Service Facility to have the
malfunction repaired.


a Automatic wipers: malfunction! See owner's
manual
The light/rain sensor is malfunctioning. You can
still control all functions that are not controlled
by the rain sensor using the windshield wiper lev-
er. Drive immediately to an authorized Audi deal-
er or authorized Audi Service Facility to have the
malfunction repaired.

8W1012721BC
Sitting correctly and safely

Sitting correctly and
safely
Correct passenger
seating position
General information
As the driver, you are responsible for making sure
every passenger is sitting correctly in their seat
and maintaining this seating position while driv-
ing. Make sure that:
— Every passenger in the vehicle has adjusted his
or her seat correctly > page 63
— The steering wheel is adjusted correctly
=> page 66
— The mirrors are adjusted so that there is a suffi-
cient view of the area around the vehicle
=>page 55
— Every passenger in the vehicle has his or her
head restraint adjusted correctly > page 67
— Every passenger in the vehicle has his or her
safety belt fastened correctly > page 68
— The activation status of the front passenger's
airbag is suitable for the passenger in the front
passenger's seat > page 74
— Children are secured in suitable child safety
seats that are secured to appropriate vehicle
seats > page 76. Read and observe the impor-
tant safety information pertaining to the use of
child safety seats on the front passenger's seat
=> A\ in General information on page 76.
Examples of incorrect seating positions
Safety belts can only provide its optimal protec-
tion when they are routed correctly. Incorrect
seating positions significantly reduce the protec-
tive functions of the safety belts and increase the
risk of injury due to incorrect belt routing.
The following list includes examples of seating
positions that could be dangerous for all vehicle
occupants. This is not a complete list. The pur-
pose is to provide examples to increase your
awareness of the topic. The following points ap-
ply when the vehicle is in motion:
— Never stand inside the vehicle.
— Never stand on the seats.
— Never kneel on the seats.
— Never tilt your backrest too far back.
— Never lean against the instrument panel.
— Never lie down on the rear bench seat.
— Never sit only on the front section of the seat.
— Never sit sideways on the seat.
— Never lean against the window.
— Never place your feet out of the window.
— Never place your feet on the instrument panel.
— Never place your feet on the seat cushion.
— Never ride in the footwell.
— Never sit on the armrests.
— Never drive or ride in a seat without fastening
your safety belt.
— Never ride in the luggage compartment.

ZA WARNING
Incorrect seating positions, failure to wear a
safety belt, or being too close to an airbag in-
crease the risk of serious or fatal injury to ve-
hicle occupants, especially if the airbags de-
ploy and come into contact with occupants
who are not seated correctly. Note the impor-
tant information and warnings in the chapters
for the topics given above.
Gi) Tips
If you or other vehicle passengers have physi-
cal limitations that prevent sitting in a correct
position, modifications to the vehicle may be
necessary. For more information, contact an
authorized Audi dealer or authorized Audi
Service Facility, or call Audi customer support
at 1-800-822-2834.


Front seats
General information
Make sure that:
— You can press the pedals down completely
while your legs are slightly bent
— The distance between your upper body and the
steering wheel or instrument panel is at least
10 inches (25 cm)
— The distance between your knees and the in-
strument panel is at least 4 inches (10 cm)
63
>