2021 AUDI A4 parking sensors

8W1012721BC
Opening and closing

door cannot be opened for a brief period direct-
ly after locking it. This way you have the oppor-
tunity to check if the doors locked correctly.
Unlocking and locking with the Audi connect
vehicle control service!)
Applies to: vehicles with Audi connect vehicle control
Requirement: Audi connect vehicle control serv-
ices must be activated > page 175. The vehicle
must be parking and the ignition must be switch-
ed off.

ZA WARNING
Observe the safety precautions > page 33.

@) 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.
@ 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 34.
— 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.

D In certain countries
BS Tey ae-e am al a BC

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 @) > fig. 28 and re-
move the mechanical key.
> Press the release buttons @) > fig. 29 while
pulling the battery holder out of the vehicle key
in the direction of the arrow.
> Replace the battery and insert the new battery
with the “+” symbol facing down.
> Slide the battery holder carefully into the vehi-
cle key.
> Insert the mechanical key.
39

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

8W1012721BC
Assist systems

Assist systems
General information
Sra eel delay

ZA\ WARNING
— As the driver, you are always completely re-
sponsible for all driving tasks. The assist
systems cannot replace the driver's atten-
tion. Give your full attention to driving the
vehicle, and be ready to intervene in the
traffic situation at all times.
— Activate the assist systems only if the sur-
rounding conditions permit it. Always adapt
your driving style to the current visual,
weather, road, and traffic conditions.
— 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.
— For the assist systems to be able to react
correctly, the function of the sensors and
cameras must not be restricted. Note the in-
formation on sensors and cameras
=>page 118.


@ Tips
— Pay attention to applicable local regulations
relating to driving tasks, leaving space for
emergency vehicles, vehicle distance, speed,
parking location, wheel placement, etc. The
driver is always responsible for following
the laws that are applicable in the location
where the vehicle is being operated.
— You can cancel a steering or braking inter-
vention by the system, by braking or accel-
erating noticeably, steering, or deactivating
the respective assist system.
— Always check the assist systems settings be-
fore driving. The settings could have been
changed, for example by other drivers.
System limitations
ZA\ WARNING
—The use of an assist system cannot over-
come the natural laws of physics. A collision
cannot be prevented in certain circumstan-
ces.
— Warnings, messages, or indicator lights may
not be displayed or initiated on time or cor-
rectly, for example, if vehicles are approach-
ing very fast.
— Corrective interventions by the assist sys-
tems, such as steering or braking interven-
tions, may not be sufficient or they may not
occur. Always be ready to intervene.
@) Tips
— Due to the system limitations when detect-
ing the surrounding area, the systems may
warn or intervene unexpectedly or too late
in certain situations. The assist systems may
also interpret a driving maneuver incorrectly
and then warn the driver unexpectedly.
— The systems may not function as expected
in unusual driving situations, such as driving
offroad, on unpaved roads, on loose ground,
on inclines, or on grooves in the road.
— The systems may not function correctly in
unclear traffic situations, such as turning
lanes, exit ramps, construction zones, rises
or dips that obstruct visibility, intersections,
toll stations, or city traffic.
— The detection of the surrounding area can
be limited, for example by vehicles driving
ahead or by rain, snow, heavy spray, or light
shining into the camera.
— The steering wheel touch recognition may
be limited when you wear gloves. Steering
intervention requests from the steering as-
sist systems may occur more frequently.
— If accessories have been mounted on the
steering wheel, the steering assist systems
may
be limited. The frequency of steering
intervention requests from the steering as-
sist systems may vary as well.


117

8W1012721BC
Driver assistance

=> fig. 121. The system uses the data from the ra-
dar sensors at the rear corners of the vehicle.
Displays and warnings
If a door is opened while the vehicle is stationary,
the warning strip @ on that door and the display
@ on that side of the vehicle will blink if another
road user is detected in a critical situation, If an-
other road user that is classified as critical is ap-
proaching while a door is already open, the dis-
plays on that door will turn on.
The same messages apply for the exit warning
system and side assist > page 148.

ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
— Always pay attention to traffic and to the
area around your vehicle. The exit warning
system does not replace the attention of the
vehicle occupants. The vehicle occupants are
always responsible for opening the doors
and exiting the vehicle.
— The exit warning system does not respond
to people and cannot warn you about every
type of approaching objects, such as cyclists.
Always monitor the traffic as well as the ve-
hicle's surroundings with direct eye contact.
— The display may not appear in time when
vehicles are approaching very quickly.
— The exit warning system does not react to
stationary objects or pedestrians.
— The exit warning system will not provide
alerts if your vehicle is pulled too far into
the parking space so that it is hidden by ad-
jacent vehicles.

@) Tips
— The exit warning is switched on or off by the
side assist warning > page 148.
— The exit warning system can be available for
up to approximately three minutes after un-
locking the vehicle and opening the door as
well as after switching off the ignition. Then
the displays flash briefly and the system
switches off.
— The display brightness for the exit warning
system cannot be adjusted.
—The coverage areas of the sensors > fig. 121
are diagrams and do not represent a true-
to-scale image of the sensor ranges.
— The system complies with United States FCC
regulations and ISED regulations
=> page 284.
149

Parking and maneuvering

Parking and
maneuvering
Introduction
Depending on the vehicle equipment, various
parking aids will help you when parking and ma-
neuvering.
Parking aid
The parking aid plus assists you while parking
using audio and visual signals to warn you about
objects detected in front of, behind, and next to*
the vehicle > page 150.
The rearview camera shows the area behind the
vehicle in the center display. The lines in the rear-
view camera image help you to park and maneu-
ver > page 152.
The peripheral cameras are an addition to the
rearview camera and help you to see various
areas around the vehicle while parking and ma-
neuvering > page 152.
The rear cross-traffic assist can warn you of ap-
proaching cross traffic when driving in reverse or
exiting a parking space > page 156.
Assisted parking
Park assist helps you to locate suitable parking
spaces and to park in them and exit them. Park
assist controls the steering movements when
parking in free parking spaces. The driver is still
responsible for accelerating, braking, and shift-
ing gears. The driver must always monitor the
area around the vehicle and supervise the parking
Procedure > page 157.
Settings options
You can adjust parking aid functions individually.
The adjustment options depend on the vehicle
equipment.
— Automatic activation > page 150
— Front and rear volume > page 151
— Entertainment fader > page 151.
— Clean rearview camera > page 153
— View > page 154
— Rear cross-traffic assist > page 156
150


ZA WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
@ Tips
Audi recommends practicing parking in a traf-
fic-free location or parking lot to become fa-
miliar with the systems. Practice parking in
good light and weather conditions.

Parking aid plus
Ne ELS EUR

Applies to: vehicles with parking aid plus
B8W-0164
Fig. 123 Center console: parking aid button
General information
The parking aid assists when parking and maneu-
vering by providing warnings about obstacles. If
the ultrasonic sensors on the vehicle > page 119
detect an obstacle, the system will provide audio
and visual warnings.
Activating and deactivating
Requirement: the vehicle speed must be under
approximately 6 mph (10 km/h).
> Press the P” button in the center console.
When activating, a brief tone will sound and
the LED in the button will turn on.
Automatic activation
> The system activates automatically when re-
verse gear is engaged while the engine is run-
ning. A brief tone will sound.
If Automatic activation is switched on in the
MMI and if the vehicle approaches an obstacle at >

8W1012721BC
Parking and maneuvering

speeds below approximately 6 mph (10 km/h),
the parking aid will switch on automatically. Au-
dible signals will sound once the obstacle is with-
in the sensor detection area.
» Applies to: MMI: To switch Automatic activa-
tion on or off, select on the home screen: VEHI-
CLE > Parking aid > Automatic activation.
Automatic deactivation
The distance indicator for the parking aid plus
will deactivate automatically when driving for-
ward faster than approximately 6 mph (10
km/h).

ZA\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
©) Note
Keep enough distance from the curb to avoid
damage to the rims.
@ Tips
— If the parking aid is switched off, it can only
be reactivated automatically when one of
the following conditions is met:
— The vehicle speed exceeds 6 mph (10 km/h)
— The ignition was switched off and back on
again
— The parking brake was set and then released
— The “P” gear was engaged and released
again
Applies to: vehicles with parking aid plus


Fig. 124 Center display: distance display
If the sensors detect an obstacle, audible and vis-
ual signals will warn you.
Visual warnings
The visual warnings in the center display help you
to detect the critical vehicle area and to estimate
the distance to an obstacle.
Red segments (@) show detected obstacles that
are in your vehicle's path. The red lines @) mark
the expected direction of travel based on the
steering angle. A white segment (3) indicates a
detected obstacle that is outside of the vehicle's
path. The closer your vehicle comes to the obsta-
cle, the closer the segments will move to the ve-
hicle. The collision area has been reached when
the next to last segment is displayed. Obstacles
in the collision area, including those outside of
the vehicle's path, are shown in red. Do not con-
tinue driving farther.
Audio signals
The closer your vehicle gets to a detected obsta-
cle, the shorter the time between the audible sig-
nals. A continuous tone sounds when an obstacle
is less than approximately 1 foot (0.30 m) away
from the front or rear of the vehicle. A continu-
ous tone sounds when an obstacle is less than
approximately 0.7 feet (0.20 m) away from the
sides* of the vehicle. Do not continue driving for-
ward or in reverse >@).
> To deactivate audio signals while parking, press
«Jin the center display. The audio signals will
be automatically activated again the next time
the parking aid is activated.
Adjusting the volume
You can adjust the volume to your preferences.
The settings depend on the vehicle equipment.
> Applies to MMI: Select on the home screen: VE-
HICLE > Parking aid. Or:
> Press|] in the center display when the parking
aid is active.


Possible settings:
Front volume - Volume for the front and side*
area.
Rear volume - Volume for the rear area.
151

Parking and maneuvering

Entertainment fader - The volume of the audio/
video source is Lowered when the parking aid is
activated.
The new level is demonstrated briefly* when the
volume is adjusted.
Error messages
If P4 appears, the sensor in the respective area
or the speaker is faulty. Drive immediately to an
authorized Audi dealer or authorized Audi Service
Facility to have the malfunction repaired.
iffy or is displayed when there is a malfunc-
tion, the parking aid functions may be unavaila-
ble or may be limited.
A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Clean the area in front of the
sensors > page 119 and try to turn on the sys-
tems again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.

ZA\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
— Sensors and cameras have spots in which
the surrounding area cannot be detected.
Objects, animals, and people may only be
detected with limitations may not be detect-
ed at all. Always monitor the traffic and the
vehicle's surroundings directly and do not
become distracted.



@) Note
— Keep enough distance from the curb to
avoid damage to the rims.
— Applies to: vehicles with park assist: If you
park in short parking spaces using park as-
sist, a continuous tone will sound from the
parking aid when the distance to an object is
less than approximately 0.7 feet (0.20 m).
Do not continue driving farther.
152
G) Tips
— The segments in the side area* are detected
and analyzed when passing. If you switch
the ignition off and on again or open the
door, or if the vehicle is stationary for a peri-
od of time, the surrounding area may have
changed in the meantime. In this scenario,
the side area* will appear black until the
area has been detected and evaluated.
— If the distance to an obstacle remains con-
stant, the volume of the distance warning
gradually lowers after a few seconds until it
is muted (this does not apply to the continu-
ous tone). If the obstacle comes closer than
it was before the sound was muted, the
tone will sound again. If the obstacle be-
comes farther away than it was before the
sound was muted, no tone will sound. Pay
attention to the vehicle's surroundings
when you start to drive.
Rearview camera and
peripheral cameras
Introduction
Applies to: vehicles with rearview camera/peripheral cameras

B8V-0629

Fig. 125 Orientation line display when parking
Depending on the vehicle equipment, a rearview
camera or multiple peripheral cameras may be
available.
The rearview camera helps you to park or maneu-
ver using the orientation lines.
The peripheral cameras expand the vehicle over-
view to include various views around the vehicle
that can be selected.

8W1012721BC
Parking and maneuvering


ZA WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and

cameras > page 117.
Activating and deactivating
Applies to: vehicles with rearview camera/peripheral cameras

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Fig. 126 Center console: parking aid button
Activating and deactivating
> Press the P4 button in the center console.
When activating, a brief tone will sound and
the LED in the button will turn on. Or
> Press CJ in the center display if the visual dis-
tance indicator is shown > page 151, fig. 124.
The system can be activated at low speeds, such
when maneuvering.
Automatic activation
The system activates automatically when reverse
gear is engaged while the engine is running. A
brief tone will sound.
Automatic deactivation
The system will deactivate automatically once
the vehicle exceeds a certain speed while driving
forward.

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


(ead a)
Applies to: vehicles with rearview camera/peripheral cameras
Depending on vehicle equipment, you may be
able to manually initiate rear view camera clean-
ing.
> Move the window wiper lever S7 into the posi-
tion for cleaning the rear window © & page 58.

ZA\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 117.
Applies to: vehicles with rearview camera/peripheral cameras


Fig. 127 Center display: aiming at a parking spot
When parking with the rearview camera or pe-
ripheral camera, the parking aid plus audio and
visual warnings* will also assist you > page 151.
Visual orientation lines
@ The orange orientation lines show the vehi-
cle's direction of travel >@. Turn the steer-
ing wheel until the orange orientation lines
align with the parking space.
@ You can use the horizontal blue markings to
help you estimate the distance to an obsta-
cle. Each marking represents approximately 3
feet (1 meter). The blue area represents an
extension of the vehicle's outline by approxi-
mately 16 feet (5 meters) to the rear.
@® You can recognize the rear bumper in the
lower display.
@ You should stop driving in reverse when the
red orientation line touches the edge of an
object, at the latest.
153