NHTSA ID Number: 10144685
Manufacturer Communication Number: SSP-990293
TSB/Document Date: 2018-09-17
Summary
eSelf-Study Program 990293 - 2019 Audi
A8
process. Adaptation is done through Guided Functions via
the Scan Tool. This process bonds the remote control to the
vehicle via SVM (Software Version Management).
666_065
Note
Because there are no handsfree microphones in the rear of the Audi A8, the rear passenger can only make and receive calls
using the remote control.
36
Networking
Topology
As many as 27 control modules are needed for all the
functions of the infotainment and Audi connect systems in
the 2019 Audi A8. The number of modules would of course
increase if all those responsible for carrying out a service
(for example, unlocking) were shown here. Therefore, this
diagram only shows the control modules which are directly
necessary in the maximum equipment version.
Multimedia Display
Unit 4
Y32
Left Rear Information Display
Control Head Control Module
J648
Multimedia Display
Unit 3
Y31
Right Rear Information Display
Control Head Control Module
J649
Information Electronics Control Module 1 J794 exchanges
the majority of data with other control modules via the
MOST or CAN buses. Exceptions to this include various
image data and software update data for Instrument
Cluster Control Module J285 and Driver Assistance Systems
Control Module J1121.
Driver Volume Control
E67
A new type of data connection (Ethernet) has been added
to J794. It is currently used to transfer data for a J794
software update to Driver Assistance Systems Control
Module J1121 (zFAS). J794 receives the data from an SD
card inserted in the USB hub.
Front Information Display Control
Head 2
J1060
Front Information Display
Control Head
J685
Transfer rates of individual bus systems:
Bus system
Wire
color
Data transfer
rate↗
Infotainment CAN
500 kbit/s
Convenience CAN
500 kbit/s
MOST bus
150 Mbit/s
MIB-CAN (local CAN
data bus)
500 kbit/s
Sub-bus system
500 kbit/s
Ethernet
100 Mbit/s
Data Bus On Board Diagnostic
Interface
J533
LVDS
USB connection
Composite video
Comfort System Central
Control Module
J393
Close Range Communication Control Module
J1169
¹) Connections only present if surround view cameras installed
²) Only installed from control module version B onwards
³) Not installed if surround view cameras installed
37
Close Range Communication
Control Module 2
J1170
Auxiliary Display Control Head 1
E857
Wireless Control Head 1
E859
Mobile Device Charger 2
J1147
Mobile Device Charger 1
J1146
USB Connection 1
U41
USB Distributor
R293
Windshield Projection Head Up
Display Control Module
J898
Instrument Cluster Control Module
J285
DVD Changer
R161
Information Electronics Control Module
J794
¹)
²)
Driver Assistance Systems
Control Module
J1121
Digital Sound System Control Module
J525
Rearview Camera System
Control Module
J772³)
666_066
38
Image transfer
There are various image sources on MIB2+. They are sent to the devices on which they are displayed in different ways.
The transfer methods are:
››
››
››
››
››
MOST bus.
LVDS.
Composite video.
Wi-Fi.
USB.
Information Electronics Control
Module 1 J794
Instrument Cluster Control Module
J285 (Audi virtual cockpit)
J794 receives image data from various sources, which it
then forwards to other control modules.
The Audi virtual cockpit receives image data from J794 via
LVDS and MOST bus as follows:
The following control modules provide images and use the
following transfer methods:
›› LVDS:
›› The large navigation map and the detailed intersection maps.
›› From mobile devices connected at USB Distributor R293
or USB Connection 1 U41, via USB.
›› From DVD Changer R161, via MOST bus.
›› From Driver Assistance Systems Control Module J1121,
via LVDS.
›› From Rearview Camera System Control Module J772, via
composite video.
Front Information Display Control Head
J685
J685 receives image data for itself and Front Information
Display Control Head 2 J1060 as one image from Information Electronics Control Module 1 J794 via LVDS. An integrated splitter separates this image into the section for
J685 and J1060.
Lower touch display
(display unit 2 for Front Information Display Control Head 2
J1060)
The lower touch display receives the image data from the
MMI display J685 via LVDS.
39
›› MOST bus:
›› All other content, such as list menus or covers. In
addition, the MOST bus is used to transfer data for
software updates.
Windshield Projection Head Up Display
Control Module J8898 (Head up display)
Detailed intersection maps and highway exits have been
added to the navigation information on J898 for the Audi
A8. As the images consist of a large amount of data, J898
receives them from J794 via MOST bus.
Image transfer via Wi-Fi
Wireless Control Head 1 E859 (Rear Seat Remote) and
Multimedia Display Units 3 and 4 Y31/Y32 (Audi tablets)
receive display content from Information Electronics
Control Module 1 J794 via Wi-Fi. The 5 GHz frequency is
generally used to do this. Data are only sent via the 2.4 GHz
frequency in countries where the 5 GHz frequency is not
approved. The Audi tablets do not receive any videos via the
2.4 GHz frequency if they come from drives connected to
J794 (DVD player, SD card reader, USB connection).
Rear Seat Entertainment
Rear Seat Entertainment
The Rear Seat Entertainment system consists of the Audi
tablet in the Audi A8 . This is the second generation of the
Audi tablet. It can only be ordered via PR number 9WF and
is only available as a set of two. Its design and functions
largely correspond to the MIB2 Audi tablet in the
2017 Audi Q7.
The difference compared to the MIB2 Audi tablet is in the
menus; they have been adapted to the new MMI design.
666_097
Note
Films from video sources installed in the vehicle are transmitted via the 5 GHz Wi-Fi frequency.
40
Audi connect
Introduction
The Audi A8 with MMI navigation plus is equipped with
Audi connect as standard.
In the Audi A8, a distinction is made within the Audi
connect services between infotainment and vehicle-related
services. The infotainment services are designed primarily
for the customer’s comfort and entertainment needs. The
vehicle-related services, however, relate to the car, for
example its position, condition, climate control, etc.
The infotainment services are operated via Information
Electronics Control Module 1 J794 and the vehicle-related
services via Data Bus On Board Diagnostic Interface J533.
Both control modules are equipped with their own embedded SIM card so that all Audi connect services and the
Internet in general1) can be used without the use of external SIM cards.
The Audi A8 may be equipped with up to two Bluetooth
antennas. One of them is used to connect external devices
to the MMI and is located in J794. The second one is
optional. It is integrated in the roof antenna and connected
to Driver Assistance Systems Control Module J1121. Both
antennas support Bluetooth Low Energy (standard 4.0).
This standard provides for a maximum range of approximately 10.9 yd (10 m).
Audi offers its customers a complementary six-month
Prime Plus unlimited subscription. Dealership personnel
must complete the Audi connect key user registration
process at delivery in order to initiate this free trial. For
more information, refer to the following website: https://
www.audiusa.com/technology/intelligence/audi-connect
The following conditions must be met to use certain
vehicle-related services, such as “Remote locking/unlocking” or “Audi service request”:
›› Verified user.
›› Key user added in the vehicle.
Reference
For further information on the Audi connect services, please refer to eSelf-Study Program 970663, The 2017 A4 Infotainment
and Audi Connect.
41
CARE
(up to 10 years*)
Safety & Service
Emergency Call
Audi Service
Request
Online Roadside
Assistance
Stolen Vehicle
Locator
Smartphone
Interface
Remote
lock & unlock
RE
0 years*)
PRIME
PLUS
(free 6 month trial)
ervice
(free 6 mont
$199 for 6 month
$499 for 18 month
Navigation & Infotainment
WiFi
mobile s
unlimite
(free 6 month trial)
Audi Service
Request
PRIME
Stolen Vehicle
Locator
Google Earth™
Point-of-interest
search (POI)
myAudi
destinations
Smartphone
Calendar
Weather
Parking
information
Map update
myAudi special
destinations
Online News
(RSS)
Online media
streaming
WiFi dataplans
(AT&T)
Amazon
Music
Onlin
Seamless M
A8/Q7/Q8/e-tro
Traffic information
online
Travel
information
Fuel prices
Connected
POIs
Remote & Alert
hone
ace
Traffic Light
Info
Vehicle
status report
Car finder
Geofencing
Valet Alert
Speed/Curfew
Alert
Advanc
v
Predictive route
guidance
myAudi
navigation
WiFi
PLUS
(free 6 month trial)
ion required
mobile share: $10/mo
WiFi dataplans
(AT&T)
unlimited: $20/mo
Amazon
Music
Online Radio
Seamless Mobility A6/A7/A8/Q7/Q8/e-tron/MY19
Connected
POIs
Advanced 3D city
view
Predictive route
guidance
Natural voice
recognition
myAudi
navigation
Key User Registration required
42
Natur
reco
Using the Audi connect services
There is a significant change in the use of the Audi connect
services in MIB2+: there is no longer an Audi connect menu
and the majority of services are accessed via the corresponding function.
For example, fuel prices are now shown directly in the
navigation function.
Fuel price display
666_089
MMI menu with Audi connect services
666_099
A small number of services which cannot be easily assigned
to a specific function are shown separately in the main
menu. Examples of these are the “News” and “Weather”
services.
If desired, the customer can set shortcuts for these separately provided services on the left side of the MMI display.
43
Audi connect stolen vehicle locator
The optional stolen vehicle locator (referred to in some
service literature as Vehicle Tracking System [VTS]) is one of
the vehicle-related services. It is designed to allow the
vehicle to be found quickly if it is stolen. The customer
receives a complimentary 10 year license when the vehicle
is first purchased.
Symbol for Audi vehicle tracking system
666_071
Layout in the vehicle
The vehicle tracking system has the following components
in the vehicle:
›› Data Bus On Board Diagnostic Interface J533
(connected gateway)
›› Comfort System Central Control Module (BCM2) J393
›› GPS antenna
›› Mobile phone antennas
›› Driver card (7I2 only)
The following items have been added to Data Bus On Board
Diagnostic Interface J533 for the vehicle tracking system
function:
››
››
››
››
Gyroscope
Larger battery
VTS module
Direct connection of GPS Antenna via GPS Antenna
Splitter R110
›› Software adaptations
Signal input from
roof antenna
666_070
Input for Emergency Call Module
Antenna (under bumper)
R263
GPS antenna input
LTE antenna 1 output to
J794
Emergency Call Module
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TSB/Document ID: SSP-990293
Replacement Service Bulletin Number:
MFR Communication Date: 2018-06-29
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
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