service AUDI A8 2021 Repair Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2021, Model line: A8, Model: AUDI A8 2021Pages: 362, PDF Size: 99.29 MB
Page 143 of 362
4N0012721BF
High-voltage system
Control unit: status and malfunction indicators
Indicator lights Meaning Solution
O Green The charger is ready to charge, | Starting the charging process
but is not charging. => page 134. CQ Off
O & Off
O 0 Off
9 Off
© Flashing green | The vehicle is being charged
O QO Off with the ground conductor
O B oft monitor activated.
O 6 off
9 Off
© Flashing green | The power cable has overheat- | After the cable cools down, the malfunc-
© a Yellow ed. Possible cause of the mal- | tion will be automatically cleared. Until it
O B oft function: a multi-phase socket | cools down, charging performance will be
O 6 of is being used in single-phase | reduced. If the malfunction continues,
mode. The charging perform- | have the power supply/household con-
© Off ance will be reduced. nection checked by a qualified electrician.
®) Flashing green |The control unit has overheat- | After the control unit cools down, the
O QA Off ed. The charging performance | malfunction will be automatically
will be reduced. cleared. Never leave the control panel in
O & Off P
@ 0 vel direct sunlight for long periods or time.
enow Until it cools down, charging performance
© Off will be reduced. If the malfunction con-
tinues, have the control unit checked by
an authorized Audi dealer or authorized
Audi Service Facility.
@ Yellow The charger is connected to
O O Off the vehicle. The high-voltage
O B oft battery is charged and the
charging process has ended
O 0 off successfully, or the vehicle is
© Off not requesting a charging pro-
cedure.
O Red The power cable has overheat- | After the cable cools down, the malfunc-
© Q Yellow ed. The charging process has __| tion will be automatically cleared and the
O B oft been interrupted. charging process will resume. If the mal-
O 6 of function continues, have the control unit
6 checked by an authorized Audi dealer or
Off
authorized Audi Service Facility, or have
the power supply/household connection
checked by a qualified electrician.
141
Page 144 of 362
High-voltage system
Indicator lights Meaning Solution
O Red The control unit has overheat- | After the control unit cools down, the
O A Off ed. The charging process has_ | malfunction will be automatically cleared
O @ oft been interrupted. and the charging process will resume.
Never leave the control panel in direct
© 0 Yellow sunlight for long periods or time. If the
9 Off malfunction continues, have the control
unit checked by an authorized Audi dealer
or authorized Audi Service Facility.
oO Red The charging infrastructure of | After the power supply/household con-
© Flashing yellow |the power supply/household | nection stabilizes, the malfunction will be
O @ oft connection is restricted. Possi- | automatically cleared and the charging
O 6 of ble cause of the malfunction: | process will resume. If the malfunction
low voltage or poor power fre- | continues, have the power supply/house-
9 Off quency. The charging process _ | hold connection checked by a qualified
has been interrupted. electrician.
O Red There is a malfunction inthe | After the vehicle charging system stabiliz-
O QO Off vehicle charging system. The | es, the malfunction will be automatically
© B Flashing yellow charging process has been in- | cleared and the charging process will re-
O 6 off terrupted. sume. If the malfunction continues, have
the vehicle checked by an authorized Audi
9° Off dealer or authorized Audi Service Facility.
O Red The power cable or vehicle ca- | Have the power or vehicle cable replaced
O QO Off ble is faulty. Possible cause of | by an authorized Audi dealer or author-
O 2 oft the malfunction: the coding ized Audi Service Facility.
. resistance of the power or ve-
© 0) Flashing yellow hicle cable is not compatible.
o Off The charging process has been
interrupted.
O Red There is a malfunction in the | End the charging process at the vehicle
O O Off vehicle charging system. The | and remove the vehicle cable from the ve-
@ 2 Red charging process has been in- |hicle charging port. Disconnect the charg-
O 0 oft terrupted. er from the power supply and reconnect it
after 60 seconds. Restart the charging
© Off process > page 134. If the malfunction
continues, have the vehicle checked by an
authorized Audi dealer or authorized Audi
Service Facility.
oO Red There is an overvoltage inthe | Disconnect the charger from the power
® 4 Flashing red charging infrastructure of the |supply and reconnect it after 60 seconds.
O 2B oft power supply/household con- | If the malfunction continues, have the
O 6 off nection. The charging process | power supply/household connection
© wi has been interrupted. checked by a qualified electrician.
142
Page 145 of 362
4N0012721BF
High-voltage system
Indicator lights Meaning Solution
© Red The control unit has atechni- | Disconnect the charger from the power
O A Off cal malfunction. The charging | supply and reconnect it after 60 seconds.
O @B oft process has been interrupted. |If the malfunction continues, have the
@ 30 Red control unit checked by an authorized
Audi dealer or authorized Audi Service Fa-
© Off cility.
© Red The control unit has a techni- | Disconnect the charger from the power
O QO Off cal malfunction (self-test supply and reconnect it after 60 seconds.
O B oft failed). The charging process | If the malfunction continues, have the
. has been interrupted. control unit checked by an authorized
@ 0 Flashing red Audi dealer or authorized Audi Service Fa-
9 Off cility.
© Red The charging infrastructure of | Have the control unit checked by an au-
@ QC Red the power supply/household | thorized Audi dealer or authorized Audi
@ Bre connection is insufficient: the | Service Facility, and have the power sup-
O 0 of ground conductor is interrupt- | ply/household connection checked by a
ed or not present. The ground | qualified electrician. Do not use the pow-
© Off conductor monitor has inter- | er supply/household connector until the
rupted the charging process. | malfunction is corrected.
© Red The indicator light in the reset | Have the control unit replaced by an au-
@ X Red button on the control unit is | thorized Audi dealer or authorized Audi
@ & Red faulty. The charging process _| Service Facility.
@ 6 Red has been interrupted.
9 Off
O Red The control unit has detected | Press and hold the © button for at least
@ X Red residual current. The charging | two seconds. If the malfunction contin-
@ 2 Red process has been interrupted. | ues, have the control unit checked by an
@ 6 Red authorized Audi dealer or authorized Audi
Service Facility, and have the power sup-
9 Flashing red ply/household connection checked by a
qualified electrician.
O Red The charging infrastructure is | Disconnect the charger from the power
© 1 Flashing red wired incorrectly. The charging | supply. Have the power supply/household
© @ Flashing red process has been interrupted. | connection checked by a qualified electri-
© {) Flashing red can.
9 Off
O Red The control unit has atechni- | Disconnect the charger from the power
@ A Red cal malfunction. Possible supply and reconnect it after 60 seconds.
@ Bred cause of the malfunction: soft- | If the malfunction continues, have the
@ & Red ware error or the load relay control unit checked by an authorized
© Red has been switched incorrectly. | Audi dealer or authorized Audi Service Fa-
The charging process has been
interrupted.
cility, and have the power supply/house-
hold connection checked by a qualified
electrician.
143
Page 146 of 362
High-voltage system
Indicator lights Meaning Solution
@ Flashing red The control unit has a serious | Have the control unit replaced by an au-
O Q Off malfunction. The charging thorized Audi dealer or authorized Audi
O @ oft process has been interrupted. | Service Facility.
@ § Red
9 Off
O Off The indicator light in the Have the control unit replaced by an au-
@ X Red On/Off button on the control | thorized Audi dealer or authorized Audi
@ S& Red unit is faulty. The charging Service Facility.
@ 6 Red process has been interrupted.
© Red
Technical Data
Output 9.6 kw
Current rating 40 A single phase
System voltage 120V-240V
Power frequency 50 Hz/60 Hz
Overvoltage category (IEC 60664) II
Short-time current rating (EN
61439-1)
<10 kA eff.
Power plug versions NEMA 6-30; NEMA 6-50; NEMA 14-30; NEMA 14-50; NEMA
S15
Integrated residual-current device /AC: 20 mA; DC: 56 mA
Vehicle charging connector Type 1
Protection class I
IP Code 55 (USA: Enclosure 3)
Control unit mass 5.3 lbs - 7.7 lbs (2.4 - 3.5 kg)
Control unit dimensions (height x
width x depth)
12.2 inx 4.1 in x 2.8 in (310 mm x 105 mm x 72 mm)
@) Tips
—The device runs a self test after power has
been restored to the control unit. If a self
test is successful, all indicator lights will il-
luminate green for two seconds.
— The Audi e-tron compact charging system is
designed for charging at sockets with a volt-
age of 120 V/240 V. If your socket has a dif-
ferent voltage, contact and authorized Audi
dealer or authorized Audi Service Facility.
— If your Audi e-tron compact charging sys-
tem has a fixed connection, meaning can be
connected directly to the power supply
144
without a power cable, contact a qualified
electrician or an authorized Audi dealer or
authorized Audi Service Facility.
— The system complies with United States FCC
regulations and ISED regulations
=> page 342.
Page 150 of 362
Trailer towing
you are operating the vehicle. Contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty for more information.
Before you start driving, check all lighting equip-
ment on the trailer while it is hitched to the vehi-
cle.
The headlight range control automatically ad-
justs the light range of the headlights.
Safety chains
Make sure the safety chains are correctly applied
when pulling a trailer. The chains should hang
enough so that the trailer can drive around
curves. However, they must not touch the
ground.
Air suspension
Applies to: vehicles with air suspension
The Audi drive select* comfort mode > page 124
must be selected before you adjust the tongue
weight on the trailer and hitch the trailer >@,
=> page 126.
Likewise, the vehicle cannot be raised manually
using the Raise function > page 126.
The air suspension trailer mode must be switched
on.
Applies to MMI: select on the home screen: VE-
HICLE > Settings & Service > Air suspension:
trailer.
Switch trailer mode off again when you are no
longer towing a trailer.
When using rear carrier systems that are mount-
ed directly on the trailer hitch ball head, you can
also switch trailer mode off manually.
If you must drive on roads that are in poor condi-
tion, you can raise the vehicle again after hitching
the trailer or after adjusting the tongue weight
=> page 126.
Vehicle levels below the values set in the comfort
level will no longer be available, even if you are
lowering the vehicle manually.
148
ZA WARNING
Applies to: vehicles with air suspension
— Never turn off trailer mode while driving
when a trailer is hitched, because then the
restrictions for controlling the vehicle level
will be turned off.
— Driving with a trailer on unpaved roads when
the vehicle is raised may change the vehicle
handling. Adapt your speed.
— Note that the vehicle will lower automatical-
ly at certain speeds if you have lifted the ve-
hicle manually.
C) Note
— Applies to: vehicles with air suspension: Se-
lect the Audi drive select* comfort mode.
Otherwise, the tongue load specified for
your vehicle will no longer be applicable.
— Attachments retrofitted on the vehicle may
cause damage, especially on the trailer
hitch ball head. In cases of damage, have
the function checked by an authorized Audi
dealer or authorized Audi Service Facility.
@) Tips
— Block the wheels with chocks when parking
on inclines if the trailer is loaded.
— Audi recommends having the vehicle in-
spected between the inspection intervals if
you tow a trailer frequently.
— Avoid driving with a trailer during the vehi-
cle break-in period.
Pie Rie Relig
Driving with a trailer requires extra caution.
Speed
Adhere to the legal speed limits. Follow the legal
regulations that are applicable in the country
where you are operating the vehicle.
As the speed increases, the driving stability of
the trailer decreases. Therefore you should not
exceed the maximum legal speed limit when
there are unfavorable road, weather, and/or wind
conditions. This especially applies when driving
downhill.
Page 153 of 362
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
Page 155 of 362
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
Page 158 of 362
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'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'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'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'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.
Page 159 of 362
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'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
Page 163 of 362
4N0012721BF
Driving information
The Sl symbol will appear when pedestrian and
wild animal detection is not available.
Marking light*
To direct the driver's attention to a pedestrian,
the headlights can flash on the pedestrian when
there is a pedestrian warning.
This occurs at speeds above approximately
35 mph (60 km/h) if you are outside of illuminat-
ed areas and no detected vehicles are shown. The
marking light is not used for wild animals. The
high beam assistant* controls the marking
light*> page 59.
Adjusting the contrast
Applies to: vehicles with night vision assist
Requirement: the night vision assist must be
switched on and the 1 tab must be displayed.
> Applies to MMI: Select on the home screen: VE-
HICLE > Driver assistance > (<2) > Night vision
assist.
> To set the desired contrast, move the slider.
Messages
Applies to: vehicles with night vision assist
Night vision assist: currently unavailable.
See owner's manual
The system is not functioning correctly at the
time, so it has been switched off. If the malfunc-
tion persists, drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired.
Integrated Toll Module
Applies to: vehicles with Integrated Toll Module
Depending on the region, you can pay toll fees in
certain countries using the Integrated Toll Mod-
ule (ITM). It replaces a separate transponder for
detecting toll fees. The system electronics are in-
tegrated in the rearview mirror housing.
To use the ITM in toll zones, you must register
and activate it.
Registration
> Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Vehicle informa-
tion Toll module.
> Note the Integrated Toll Module ID.
> To register the ITM, go to the displayed web ad-
dress and follow the instructions.
Activation
> To activate the ITM, press CD in the MMI.
Entering the number of passengers
Depending on the number of passengers and the
region, a lower toll fee may be charged. You must
either enter the number of passengers or deacti-
vate the ITM based on the laws applicable in the
area where you are driving.
> To enter the number of passengers, select the
appropriate button in the MMI.
> To deactivate the ITM, press C in the MMI.
@) Tips
— The driver is responsible for specifying the
correct number of passengers and activat-
ing or deactivating the ITM.
— Malfunctions can occur when detecting tolls
if both the ITM and transponder are activat-
ed. Deactivate the system not being used or
remove it as necessary.
—Ifa rearview mirror is replaced, you must
register the new ITM and remove the old
ITM from the account.
—The system complies with United States FCC
regulations and ISED regulations
> page 341.
Display
Applies to: vehicles with Integrated Toll Module
The selected number of passengers is displayed
in the MMI status bar > page 23.
The ii symbol in the status bar and a notifica-
tion in the MMI will indicate if there is a faulty
connection between the ITM and the MMI or if
the ITM is faulty. If the connection interference
continues or the ITM is faulty, drive immediately >
161