AUDI A8 2021 Repair Manual
Manufacturer: AUDI, Model Year: 2021, Model line: A8, Model: AUDI A8 2021Pages: 362, PDF Size: 99.29 MB
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4N0012721BF
Lights and Vision
vehicles in certain markets, the tail lights
will also turn on.
—In cool 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.
— When the parking lights are switched on
and the ignition is switched off, the 200} sym-
bol appears in the light switch module.
Turn signal and high beam lever
BFV-0012
Fig. 43 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 a or B indicator
light flashes.
@ 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 =O and headlight flasher
> Move the lever to the corresponding position:
@) High beams on (vehicles with high beam assis-
tant”) > page 59
@ High beams off or headlight flasher
The
=| 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.
High beam assistant
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 AUTO light function must be
selected and the high beam assistant must be
switched on in the MMI > page 61.
> To activate the high beam assistant, tap the
lever forward @) > page 59, fig. 43. The fa in-
dicator light will appear in the instrument clus-
ter display and the high beams will be switched
on or off automatically. The Ed 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 3) > page 59, fig. 43. The =0] in-
dicator light will turn on.
59
>
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Lights and Vision
> To deactivate the high beams manually, pull
the lever back @) > page 59, fig. 43. The high
beam assistant is deactivated.
Operating the headlight flasher
> To operate the headlight flashers, pull the lever
back @) > page 59, fig. 43. 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 150.
— High beam assistant is only intended to as-
sist the driver. The driver is responsible for
controlling the high beam headlights and
adjusting them to match the lighting and
visibility conditions.
— High beams can cause glare for other driv-
ers, which increases the risk of an accident.
For this reason, only use the high beams or
the headlight flasher when they will not cre-
ate glare for other drivers.
G) Tips
Adhere to any local applicable regulations
when using the lighting equipment, for exam-
ple in regard to reducing glare for other driv-
ers. The driver is always responsible for adher-
ing to the regulations applicable in the coun-
try where the vehicle is being operated.
60
Laser lighting
Applies to: vehicles with laser lighting
[RAZ-0102}
Fig. 44 Headlights: label
The laser lights increase the range of the head-
lights.
An additional module integrated in the headlight
converts a blue laser light into a white light using
a luminescent material.
Activating or deactivating laser lights
Requirement: the AUTO light function must be
set, and the high beam assistant and the laser
lights must be switched on in the MMI
=> page 61.
The high beam is controlled by the high beam as-
sistant. The laser lights switch on shortly after
the
LED high beams are switched on.
> To activate the high beam assistant, tap the
lever forward 3) > page 59, fig. 43. The BPA in-
dicator light will appear in the instrument clus-
ter display and the high beams will be switched
on or off automatically.
The laser lights are switched on at speeds above
approximately 44 mph (70 km/h) when the high
beams are switched on. The Ea indicator light
will turn on if the high beams are switched on. >
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The B indicator light turns on if the laser lights
are switched on.
The laser lights are switched off when the speed
decreases below approximately 30 mph (50
km/h) or when the high beam assistant switches
the LED headlights off.
Nv WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— All repair procedures on the headlights must
be performed by an authorized Audi dealer
or authorized Audi Service Facility that will
perform the work according to Audi factory
specifications. Incorrect repairs could result
in eye injury, impair the function, and may
void the vehicle's operating license.
— Opening the laser module is not permitted
and could cause permanent injuries to the
eyes.
— Dangerous exposure to laser beams may oc-
cur if the covers are removed or if the head-
lamp module housing is opened.
G) Tips
— The headlight contains a class 4 laser. The
technical design converts the laser beam so
that there is no danger when it is used for
its intended purpose.
—The laser beam emission from the head-
lamp has been classified in accordance with
IEC 60825-1:2007.
— The possible emission is below the thresh-
old for laser class 2.
—
Maximum laser beam output: 5W (continu-
ous emission), wavelength range A= 400 nm
- 700 nm.
— The headlamp light functions are rated in
accordance with IEC 62471-5:2015.
— The beam emitted from the headlamp was
classified as risk group 2.
Adjusting the exterior lighting
You can adjust the exterior lighting separately.
The settings depend on the vehicle equipment.
> Applies to: MMI: Select on the home screen:
VEHICLE > Light & Visibility > Exterior light-
ing.
Automatic headlights
You can adjust the following settings in the Auto-
matic
headlights menu:
Activation time - You can adjust if the headlights
switch on Early, Medium, or Late based on the
sensitivity of the light sensor.
High beam assistant - You can switch the high
beam assistant on and off.
Laser lights - You can switch the laser lights on
and off.
Entry/exit lighting
The Entry/exit lighting illuminates the area
around the vehicle when the vehicle is unlocked
or when the driver’s door is opened while the ig-
nition is off. The entry/exit lighting works when it
is dark and when the AUTO light function is
switched on. The front and rear daytime running
lights* switch on automatically each time the ve-
hicle is unlocked regardless of how bright it is
outside the vehicle.
Daytime running lights
USA models: The daytime running lights can be
switched on and off.
Canada models: The daytime running lights can-
not be switched off. The lights activate automati-
cally each time the ignition is switched on.
rgency flashers
Fig. 45 Center console: emergency flashers
61
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Lights and Vision
The emergency flashers help to make other driv-
ers aware of your vehicle in dangerous situations.
> Press the A @ button to switch the emergency
flashers on or off.
When the emergency flashers are turned on, the
a and B indicator lights will flash at the same
time.
You can indicate a lane change or a turn when the
emergency flashers are switched on by using the
turn signal lever. The emergency flashers stop
temporarily.
The emergency flashers also work when the igni-
tion is turned off.
@) Tips
You should switch the emergency flashers on
if:
— you are the last car ina traffic jam so that
all other vehicles approaching from behind
can see your vehicle
— your vehicle has broken down or you are
having an emergency
— your vehicle is being towed or if you are tow-
ing another vehicle
Messages
If the 8, indicator light turns on, a bulb has
failed. The displayed message indicates the cause
and possible solutions. If one of the messages re-
mains on, drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired.
By Audi adaptive light: malfunction! See own-
er's manual
Adaptive light* is not working. The headlights
still function. Drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired.
OLED tail light: malfunction! Switched off
permanently. See owner's manual
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
62
High beam assistant: malfunction! See own-
er's manual
You can still switch the high beams on or off
manually. Drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired.
High beam assistant: currently unavailable.
Camera view limited due to surroundings. See
owner's manual
This message appears if the camera's visual field
is blocked. The system will switch itself off. Try
switching the systems on later.
a Automatic headlights: malfunction! See
owner's manual
The light/rain sensor is malfunctioning. When
the AUTO light function is on, the low beams will
remain switched on at all times for safety rea-
sons. Drive immediately to an authorized Audi
dealer or authorized Audi Service Facility to have
the malfunction repaired.
Interior lighting
ry 3S
S 2
> a
oO
Fig. 46 Headliner: interior lighting
Interior lighting buttons
axs* - Interior lighting on/off
con® - Rear interior lighting on/off
4 - Door contact switch on/off. The interior light-
ing is controlled automatically.
Touch-sensitive reading lights
> To turn a reading light on or off, touch the sur-
face @ briefly.
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> To activate the manual dimming function,
touch the surface @) when the light is switched
off and keep touching it until the desired
brightness is reached.
Rear interior lighting
RAZ-0006|
Fig. 47 Headliner: reading lights
Press the 2* button to switch the rear interior
lighting on or off.
Touch-sensitive reading lights*
> To turn a reading light on or off, touch the sur-
face @ briefly.
> To activate the manual dimming function,
touch the surface @) when the light is switched
off and keep touching it until the desired
brightness is reached.
Matrix reading lights*
When the reading lights are switched on, you can
individually adjust the brightness, position, and
focus range.
» Applies to Rear Seat Remote: Select on the
home screen: LIGHTS > Matrix lights > Individ-
ual.
Interior lighting
Applies to: vehicles with interior lighting
The ambient lighting turns on when the ignition
is switched on. The ambient lighting is deactivat-
ed when the lights are set to OFF.
You can adjust the interior lighting individually.
The settings depend on the vehicle equipment.
> Applies to MMI: Select on the home screen: VE-
HICLE > Light & Visibility > Interior lighting.
> Applies to Rear Seat Remote: Select on the
home screen: LIGHTS > Interior lighting.
You can choose from various color profiles, such
as Maritime.
Additional settings and profiles:
— Brightness: you can adjust the brightness for
all of the interior lighting.
— Individual: you can adjust the brightness and
color of the interior lighting separately, divided
into contour and surface lighting.
— Audi drive select: the contour and surface
lighting color changes depending on the select-
ed drive select* mode.
@ Tips
Depending on vehicle equipment, when the
drive select function is activated, the color of
the contour and surface lighting may briefly
change to red or blue when the interior tem-
perature is manually increased or decreased.
Display brightness
You can adjust the instrument and display illumi-
nation separately. The settings depend on the ve-
hicle equipment.
> Applies to MMI: select on the home screen:
SETTINGS > Display & brightness.
> Applies to Rear Seat Remote: select on the
home screen: SETTINGS > Device.
Possible settings in the MMI:
— Cockpit dimming
— Head-up display
— MMI
— Audi virtual cockpit
Possible settings in the Rear Seat Remote:
— Brightness
— Dim display
63
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Lights and Vision
Vision
Adjusting exterior mirrors
RAZ-0150
Fig. 48 Driver's door: knob for the exterior mirrors
> Turn the knob in the driver's door to the desired
position:
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 42.
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
64
ZA 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
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.
G) 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
> The interior and exterior mirrors dim automati-
cally when light shines on them, for example
from headlights on a vehicle behind you.
ZX WARNING
— If the glass on an automatic dimming mirror
breaks, electrolyte can leak out. This liquid >
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can irritate the skin, eyes and respiratory
system. If there is contact with the fluid,
flush immediately with plenty of water. Con-
sult a physician if necessary.
— 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.
— If electrolyte fluid comes into contact with
the eyes, flush them thoroughly with plenty
of clean water for at least 15 minutes and
then seek medical attention.
— If electrolyte fluid comes into contact with
the skin, flush the affected area with clean
water for at least 15 minutes, and then
clean with soap and water and seek medical
attention. Clean affected clothing and shoes
thoroughly before wearing again.
— If the fluid was swallowed and the person is
conscious, flush the mouth with water for at
least 15 minutes. Do not induce vomiting
unless this is recommended by medical pro-
fessionals. Seek medical attention immedi-
ately.
G) Note
If the glass on an automatic dimming mirror
breaks, electrolyte can leak out. This liquid
damages plastic surfaces and paint. Clean
this liquid as quickly as possible, for example
with a wet sponge.
@ Tips
— If the light reaching the rearview mirror is
obstructed, the automatic dimming mirror
will not function correctly,
— The automatic dimming mirrors do not dim
when the interior lighting is turned on or
the reverse gear is selected.
Fig. 49 Roof headliner: sun visor
Sun visor
The sun visors can be moved out of their brackets
and turned toward the doors (a).
They can also be moved back and forth length-
wise in this position.
Vanity mirror
The mirror light switches on when the cover over
the
vanity mirror @) opens.
Vanity mirror in the rear
Applies to: vehicles with vanity mirrors in the rear
Nees
Fig. 50 Rear headliner: vanity mirror
> Press the button to fold the mirror open. The
mirror lighting turns on automatically.
> To change the mirror's angle, move it forward
or back with your hand.
65
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Lights and Vision
Windshield wipers
Switching the windshield wipers on
RAZ-0149.
Fig. 51 Lever: windshield wipers.
> Move the windshield wiper lever SY 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.
© Clean the windshield @. 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.
66
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 to position 6), the headlights and
the night vision assist camera”* are cleaned at in-
tervals.
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,
which increases the risk of an accident. They
can also cause wiper blade chatter.
— Properly functioning windshield wiper
blades are required for a clear view and safe
driving > page 67, Cleaning/changing wip-
er blades.
@) Note
— If there is frost, make sure the windshield
wiper blades are not frozen to the wind-
shield. Switching on the windshield wipers
when the blades are frozen to the wind-
shield can damage the wiper blades.
— Prior to using a car wash, the windshield
wiper system must be switched off (lever in
position @). This prevents the wipers from
switching on unintentionally and causing
damage to the windshield wiper system.
@) Tips
— The windshield wipers switch off when the
ignition is switched off. You can activate the
windshield wipers after the ignition is
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switched on again by moving the windshield
wiper lever to any position. The single wipe
function (lever in position @) also functions
when the ignition is switched off.
— Worn or dirty windshield wiper blades result
in streaking. This can affect the rain sensor
function. Check your windshield wiper
blades regularly.
— The washer fluid nozzles for the windshield
washer system are heated when the ignition
is on if the outside temperature is low.
— When stopping temporarily, such as at a
traffic light, the speed of the windshield
wipers automatically reduces by one level.
[eG ce a es ce wiper blades
B8V-0696]
Ae
Fig. 52 Windshield wipers: changing the wiper blades
Wiper blade replacement position
> Switch off the ignition and hold the windshield
wiper lever in position @) > page 66, fig. 51 un-
til the windshield wiper moves into the wiper
blade replacement position.
> To bring the windshield wipers into the normal
position, switch the ignition on and hold the
windshield wiper lever in position @) until the
windshield wipers go back to the original posi-
tion, or drive faster than 8 mph (12 km/h).
You can also turn the wiper blade replacement
position on or off in the MMI:
> Switch the windshield wipers off (position @
=> page 66, fig. 51).
> Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Wiper change po-
sition.
Cleaning the wiper blades
Requirement: the windshield wipers must be in
the wiper blade replacement position.
> Fold the windshield wiper arm away from the
windshield.
> For information on cleaning, see > table on
page 311.
Replacing the wiper blades
Requirement: the windshield wipers must be in
the wiper blade replacement position.
> Fold the windshield wiper arm away from the
windshield.
> Press the locking knob @) on the wiper blade.
Hold the wiper blade firmly.
» Remove the wiper blade from the windshield
wiper arm mount (2).
> 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.
ZA 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.
67
>
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Lights and Vision
G) 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.
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.
gS 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.
Digital compass
Switching the compass on and off
Applies to: vehicles with digital compass
BFV-0288
Fig. 53 Rearview mirror: digital compass is switched on
68
> To turn the compass on or off, press the button
@ until the compass display in the mirror turns
on or off.
The digital compass only works when the ignition
is turned on. The directions are indicated with ab-
breviations: N (north), NE (northeast), E (east),
SE (southeast), S (south), SW (southwest), W
(west), NW (northwest).
G) Tips
To prevent inaccurate compass readings, do
not bring any remote controls, electrical devi-
ces or metallic objects near the mirror.