display AUDI A8 2021 Repair Manual

4N0012721BF
High-voltage system

> To activate timer charging, select s= until Tim-
er charging mode is displayed.
If the set departure time on the timer is too
close, it may not be possible to charge the vehicle
fully.
@) Tips
It is not possible to charge using the timer at
some charging stations.
Applies to: vehicles with plug-in hybrid drive
In case of malfunction, you can manually release
the charging port door or the charging connec-
tor.

Fig. 101 Left side of luggage compartment: emergency re-
lease cover



Fig. 102 Left side of the luggage compartment: emergen-
cy release
Manually releasing the charging port door
> Open the luggage compartment lid.
» Remove the screwdriver from the vehicle tool
kit > page 317 and pry off the cover > fig. 101.
> Loosen the red loop @ © fig. 102 from the re-
tainer and then pull on the loop carefully >@.
> To open the charging port door, press on the
right side of the door > page 134, fig. 99.
> After releasing manually, secure the loop on
the retainer and close the cover.
> Drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to have
the malfunction corrected.
Manually releasing the charging connector
If you are not able to pull the charging connector
out of the vehicle charging port, there may bea
malfunction. You must use the emergency re-
lease to release the vehicle charging connector.
Requirement: the “P” gear must be selected and
the vehicle must be unlocked.
> End the charging process > page 135.
> Open the luggage compartment lid.
» Remove the screwdriver from the vehicle tool
kit > page 317 and pry off the cover > fig. 101.
> Carefully pull on the red loop @) > fig. 102
2©.
» Remove the charging connector.
> Close the emergency release cover.
> Drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to have
the malfunction corrected.
If the charging connector still cannot be removed
after using the emergency release, see an author-
ized Audi dealer or authorized Audi Service Facili-
ty for assistance.
(@) Note
Only pull on the loop until you feel resistance.
You will not hear it release. If you continue to
pull, you could damage the emergency re-
lease mechanism.
Messages
Applies to: vehicles with plug-in hybrid drive
If the & indicator light turns on, then the range
is low or very low. Charge the high-voltage bat-
tery.
B AC charging system: malfunction! Please
contact Service
This message appears if there is a malfunction in
the charging system. Drive to an authorized Audi >
137

High-voltage system

Audi e-tron compact charging system
Applies to: vehicles with Audi e-tron compact charging system

a oho


RAZ-0726}


Fig. 104 Audi e-tron compact charging system: compo-
nents (example)
Observe the safety precautions > page 132, Im-
portant safety precautions.
The Audi e-tron compact charging system can be
used for charging with a household or industrial
socket. Depending on the country and the vehicle
equipment, the following accessories may be
available:
@ Control unit
@ Vehicle cable with vehicle charging connector
@) Power cable with power plug for household
sockets
@ Power cable with power plug for industrial
sockets
The vehicle cable is securely connected to the
control unit. The power cable is plugged into the
upper end of the control unit and can be switched
=>page 145.
Control unit overview

© | On/Off button @, charging power lev-
el and LED
© _ |Status LED:
a Power supply/household
connection
& | Vehicle
0 Control panel
@ 9
Charging




Reset

Note the instructions for charging > page 134.
140
Fig. 105 Audi e-tron compact charging system: control
unit
Requirement: the correct power plug must be in-
stalled > page 145.
— Insert the plug into the socket.
— Plug the vehicle charging connector into the ve-
hicle charging port.
— The charging process e will start automatically.
— Once the charging process has completed, un-
lock the vehicle and remove the vehicle charg-
ing connector from the vehicle charging port.
Adjusting the charging power level
The control unit automatically recognizes the
voltage and the available current strength. You
can set whether you would like to charge with full
or reduced charging power. The last setting that
was selected will be saved and used again the
next time the vehicle is charged. If multiple
items are connected to the power circuit, the
charging current may be reduced when charging
at a power outlet. This can help to prevent the
electrical equipment from overheating.
Before charging, always check if the charging
power setting that was selected last is still suita-
ble.
—To set the charging power level, press and hold
the ® button © © fig. 105 for at least two sec-
onds.
After the charging power level is set, the status
LEDs (, and [) will flash green one time. The
selected value (50% or 100%) is displayed on the
left or right side of the ® button.

4N0012721BF
Trailer towing

Hill
When you start driving uphill or downhill, trailers
may tilt or sway sooner than when driving ona
level surface. If small swaying movements have
already occurred, you can stabilize the trailer by
firmly braking immediately. Never attempt to
“straighten out” the trailer by accelerating.
Conventional drive system: Downshift before
driving on hills to utilize the engine braking ef-
fect SA.
Plug-in hybrid drive system: Reduce the speed
and use the recuperation braking effect
=> page 114 to relieve the brakes > A.
Brakes
When using a trailer with overrun brakes, first
brake gently then quickly. This reduces the risk of
jerking while braking if the trailer wheels lock up.
Engine coolant temperature
Pay attention specifically to the coolant tempera-
ture display when there are high outside temper-
atures, and when driving on long inclines
=> page 14. Shift to a higher gear in a timely man-
ner.

Z\ WARNING
Constant braking causes the brakes to over-
heat and can substantially reduce braking per-
formance, increase braking distance, or cause
complete failure of the brake system.

149

Assist systems

Assist systems
General information
SP ae eel idol ay

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 151.

@ 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 or by
using another user.
150
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.
G) 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.

4N0012721BF

Assist systems

Surrounding area
detection

SY d camera coverage areas

RAZ-0610)




B8V-0687


Fig. 109 Rearview camera coverage area
The assist systems analyze the data from various
sensors and cameras installed in the vehicle. Do
not use any assist systems if there is damage to
the vehicle in an area where sensors and cameras
are located or on the vehicle underbody, or if the
vehicle was involved in a collision. The functional-
ity of the sensors and cameras could be impaired,
or they could malfunction. Have an authorized
Audi dealer or authorized Audi Service Facility
check their function.
Radar sensors
Depending on the vehicle equipment, the area
surrounding the entire vehicle may be detected
> fig. 108 @.
The wheel sensors on the rear corners of the vehi-
cle are positioned so that the adjacent lanes to
the left and right are detected on roads with a
normal lane width.
Ultrasonic sensors
Depending on vehicle equipment, various areas
may be displayed in the MMI using the ultrasonic
sensors > fig. 108.
The range of the displays depends on the location
of the ultrasonic sensors:
@ Approximately 4 feet (1.20 m)
@® Approximately 3 feet (0.90 m)
@® Approximately 5.2 feet (1.60 m)
© Approximately 3 feet (0.90 m)
© Approximately 3 feet (0.90 m)
The side area © is detected and evaluated when
passing. There may have been changes to the sur-
rounding area after switching the ignition off and
on again, after opening the doors, or if the vehi-
cle is left stationary for a period of time. In this
case, the area will appear black until the area has
been detected and evaluated.
Cameras
Use the camera image on the display to assist you
only if it shows a good, clear picture. Keep in
mind that the image in the display is enlarged
and distorted. Under certain circumstances, ob-
jects may appear different and unclear on the dis-
play.
The rearview camera can only detect the area
marked in red > fig. 109. Only this area is dis-
played on the upper display > A\.

ZA WARNING
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 detected at all.
Always monitor the traffic and the vehicle's >


151

Assist systems


surroundings directly and do not become dis-
tracted.

C) Note
— Obstacles may disappear from the measure-
ment range when approaching them, even if
they were already detected.
—Insome situations, the ability of the sen-
sors and cameras to detect and display cer-
tain objects may be limited.
— Objects located above the coverage area,
such as bumpers on parked cars, garage
doors that are partially open, or objects
that are hanging
— Low obstacles
— Narrow objects, such as barrier chains, fo-
liage, poles, or fences
— Projecting objects, such as trailer draw
bars
— Objects with certain surfaces and struc-
tures,
such as fabric
@) Tips
— The sensors and cameras and the areas
around them must not be obstructed be-
cause this can impair the function of the
systems that depend on them. Make sure
that the sensors and cameras are free of
snow, ice, and other deposits. Do not use
any accessories, stickers, or other objects
that extend into the range of the sensors
and cameras.
— On vehicles that have factory-installed li-
cense plate brackets on the front of the ve-
hicle, the brackets may only be replaced
with ones that are the same size and made
of the same material. Do not install any li-
cense plate brackets on the front of vehicles
that do not have factory-installed brackets.
Otherwise, the function of the system could
be impaired.
— The function of the sensors and cameras
may be limited when light and visibility con-
ditions are poor, for example when driving
into a tunnel, when there is glare, or when
there are reflective objects.
152
— External ultrasonic sensors, such as those in
other vehicles, can interfere with the sen-
sors.
— The coverage areas of the sensors > fig. 108
and cameras > fig. 109 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 341.
Locations of the sensors and cameras


RAZ-0920



Fig. 110 Front area: sensors and cameras






Fig. 111 Rear area: sensors and cameras
Front area
Depending on the vehicle equipment, the follow-
ing sensors and cameras may be installed:
— Laser scanner in the front of the radiator grille
oA
— Camera behind the windshield
— Peripheral cameras on the exterior mirrors
— Front peripheral camera in the radiator grille
— Night vision camera in the radiator grille
— Front and side ultrasonic sensors
— Radar sensors at the front corners of the vehi-
cle
— Radar sensor in the front in the bumper

4N0012721BF
Assist systems

Rear area
Depending on the vehicle equipment, the follow-
ing sensors and cameras may be installed:
— Rearview camera in the luggage compartment
lid
— Radar sensors at the rear corners of the vehicle
— Rear and side ultrasonic sensors
Switching the systems
on and off


ZA\ WARNING
Applies to: vehicles with laser scanner
— The surface of the laser scanner can become
hot during operation, which increases the
risk of burns.
— The laser scanner contains a class 1 laser in
accordance with IEC 60825-1:2014. When
used according to regulations, the laser is
not dangerous. Opening the laser module
and removing covers is not permitted. Doing
so could cause permanent injuries to the
eyes.
— Any repair work on the laser module must
be performed by an authorized Audi dealer
or authorized Audi Service Facility; other-
wise the vehicle's operating license may be
voided. Incorrect repairs may cause limited
functionality and eye damage.




@) Tips
Applies to: vehicles with laser scanner
— The possible emissions are below the
threshold for class 1 lasers.
— Complies with 21 CFR 1040.10 and
1040.11 except for deviations pursuant to
Laser Notice No. 50, dated June 24, 2007.
@ Tips
— The locations of the sensors may differ
slightly depending on vehicle equipment.
— Some sensors are installed under vehicle
components and cannot be seen from the
outside.
— The system complies with United States FCC
regulations and ISED regulations
=> page 341.

Fig. 112 Center console: driver assistance systems button
Description
You can switch some assist systems on and off in
the MMI. Depending on the equipment, it may be
in the standard display or the profile selection.
> Press the & button (, or
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance.
Standard display
Applies to: vehicles with standard display
> To switch a system on or off, press CD for the
desired system.
> To show the brief description of a system, press
© for the desired system.
Profile selection
Applies to: vehicles with profile selection
> To select a profile, press the profile name on
the upper display or press the & button (@ re-
peatedly until the profile is active.
> To list systems included in a profile, select E]
on the upper display.
> To show the brief description of a system, se-
lect @ for the desired system.
> To switch individual systems on and off in the
Individual profile, select ¥ and CD for the de-
sired systems.
The following profiles can be selected:
— Maximum - All available systems are switched
on in this profile.
— Individual - You can switch the systems on and
off individually in this profile.
153

4N0012721BF
Driving information

Driving information
Speed warning system
Applies to: vehicles with speed warning system
The speed warning system helps the driver to
stay below a specified maximum speed. A warn-
ing threshold can be set in the MMI for this pur-
pose.
Once the speed slightly exceeds the stored
threshold, the speed warning system will alert
the driver with an indicator in the instrument
cluster and a warning tone. Once the speed drops
below the stored maximum speed, the indicator
will turn off.
Setting a threshold is recommended if you would
like to be reminded when you reach a certain
maximum speed. Situations where you may want
to do so include driving in a country with a gener-
al speed limit or if there is a specified maximum
speed for winter tires.
@) Tips
Regardless of the speed warning system, you
should always monitor your speed using the
speedometer and make sure you are following
the legal speed limit.
Setting the warning threshold
Applies to: vehicles with speed warning system
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance > (<3) > Speed warn-
ing.
Messages
Applies to: vehicles with speed warning system
ol Manually set speed limit XX mph
(km/h) exceeded
The stored speed was exceeded.
Camera-based traffic
sign recognition
Applies to: vehicles with camera-based traffic sign recognition

Fig. 113 Instrument cluster: traffic sign recognition
The traffic sign recognition shows the traffic
signs detected by the front camera in the instru-
ment cluster display and in the head-up display”.
Data from the navigation system is also included
in the display. Up to three traffic signs can be dis-
played in the instrument cluster at once. The
speed limit that is currently applicable is dis-
played in the status line. If necessary, it will be
hidden if the system detects that turning right is
prohibited at a red light. The display in the head-
up display* can be switched off > page 33.
Within the limits of the system and depending
on the market, speed limit restrictions @ in
school zones, highways, construction zones, or at
night may be displayed.
Limitations
The traffic sign recognition is subject to certain
system limitations and may be unavailable or on-
ly partially available in the following situations:
— When visibility is poor, such as in snow, rain,
fog, or heavy spray
— When there is glare, for example from oncom-
ing traffic or the sun
— At high speeds
— If the camera&#39;s visual field > page 151 is cov-
ered, for example by dirt or stickers. For infor-
mation on cleaning, see > page 310.
— If the traffic signs are completely or partially
covered, for example by trees, snow, dirt, or
other vehicles
155

Driving information

— If traffic signs do not conform to the standard
format
— If traffic signs are damaged or bent
— If traffic signs are displayed on sign holders
with electronic signs
— If the traffic signs or the roadways have
changed, and the navigation data is no longer
up-to-date

Z\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
— Under some circumstances, traffic sign rec-
ognition may not detect traffic signs correct-
ly or detect them at all. As a result, the sys-
tem may not display the correct speed limit
or any speed limit.
@) Tips
— Traffic sign recognition does not adapt your
vehicle&#39;s speed to match the speed Limit.

— The display in the instrument cluster is
based on the units of measurement used for
speed in the country where the vehicle is be-
ing operated. As a result, a display of 50 in
the instrument cluster can mean either mph
or km/h, depending on the country.
Applies to: vehicles with camera-based traffic sign recognition
Accessing traffic sign recognition
> Select in the instrument cluster: vehicle func-
tions tab > Traffic signs.
Setting a traffic sign based speed warning
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance > (<3) > Speed warn-
ing.
You can select a warning threshold. If you exceed
this, then the current detected speed limit will be
shown in the display with an exclamation point
for the duration that it is exceeded and it will
blink for a short time.
156
IY ett Tel -1
Applies to: vehicles with camera-based traffic sign recognition
Traffic sign recognition: currently unavaila-
ble. Camera view limited due to surroundings
The camera’s visual field is covered. Clean the
windshield.
Traffic sign recognition: currently limited.
See owner&#39;s manual
This message appears if navigation system data
is not available, for example on newly-construct-
ed roads. The speed limit display will be tempo-
rarily limited, which increases the risk of an incor-
rect display. If this message continues to appear,
drive immediately to an authorized Audi dealer or
authorized Audi Service Facility to have the mal-
function repaired.
No traffic sign information available
Depending on the area, there is no valid naviga-
tion data and no speed limits were detected. This
may also appear if there is a recommended
speed, but no speed limit (for example when
driving on and off the expressway).
Malfunction! See owner&#39;s manual
The system may not function correctly so it has
been switched off. See an authorized Audi dealer
or authorized Audi Service Facility for assistance.
Function currently unavailable. See owner&#39;s
manual
If this message appears on vehicles without cam-
era-based traffic sign recognition, then the traffic
light
information function is currently unavaila-
ble. See > page 158.

4N0012721BF
Driving information

Traffic light information
Applies to: vehicles with traffic light information

Fig. 114 Instrument cluster: traffic light information dis-
play
The traffic light information gives you a speed
recommendation in order to reach the next traffic
light when it is green @, or it informs you of the
wait time at the next red light 2). Once traffic
light
data is received, the traffic light information
will be displayed in the instrument cluster and in
the head-up display*. If the vehicle is in an area
with traffic light information but cannot receive a
traffic light signal, then a gray traffic light sym-
bol will be displayed @).
General information
The traffic light information is subject to system
limitations and may be unavailable or only parti-
ally available in the following situations:
—If the permitted speed limit is exceeded
— If driving below a certain speed limit
— If the next traffic light is less than approxi-
mately 100 feet (30 m) away
—If the estimated wait time at a red light is less
than four seconds
— If there is no traffic light data available
— If emergency response vehicles or public transit
systems are active
— If traffic lights are in construction zones or be-
ing serviced
— If there are warnings from the camera-based
traffic sign recognition*
— If the camera-based traffic sign recognition* is
malfunctioning or not available
—If the data connection has been interrupted
— If data transmission is deactivated in the priva-
cy settings
— If the subscription has expired
If this is the case, the menu item will be grayed-
out or it will not be possible to select it.

ZX WARNING
— When traffic light information is shown, al-
so always pay attention to the traffic situa-
tion, the distance to other vehicles, and the
area around the vehicle. The driver is always
responsible for assessing the traffic situa-
tion.
— Always adapt your speed to the current
weather, road and traffic conditions. The dis
played information must never cause you to
ignore legal traffic regulations and pose a
safety risk.
— Regardless of the traffic light information,
you should always monitor your speed using
the speedometer and make sure you are ad-
hering to the legal speed limit.
— The traffic light information does not adjust
your vehicle&#39;s speed to the speed recom-
mendation shown in the display.
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 150.
(i) Tips
— Traffic light information was only available
in select cities at the time this manual was
printed.
— Traffic light information is not available na-
tionwide.


— The functions depend on the navigation da-
ta* being up-to-date and correct identifica-
tion by the traffic sign recognition*.
— Incorrect values from the camera-based
traffic sign recognition* or outdated naviga-
tion system* map data can result in missing
or incorrect display images.
— Certain traffic lights can automatically ad-
just to the current traffic situation. If this
occurs, the display of traffic light informa-
tion can change suddenly.
157