eSelf Study Program 970143

Modular Infotainment Platform (MIB)

Audi of America, LLC
Service Training
Created in the U.S.A.
Created 11/2013
Course Number 970143
©2013 Audi of America, LLC
All rights reserved. Information contained in this manual is based on
the latest information available at the time of printing and is subject to
the copyright and other intellectual property rights of Audi of America,
LLC., its affiliated companies and its licensors. All rights are reserved
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Always check Technical Bulletins and the latest electronic service repair
literature for information that may supersede any information included
in this booklet.

Revision 3: 12/2013

Contents
Introduction.........................................................................................1
Standard MIB.......................................................................................3
Standard MIB (MMI® radio).................................................................................................................... 3

High spec MIB with navigation.............................................................5
Radio tuner...........................................................................................8
Analog tuner reception concept...........................................................8
Disk drives and storage media............................................................10
Media playback......................................................................................................................................10

iPod adapter plus................................................................................12
Front Information Display Control Head J685....................................15
Video transmissions to J794 ................................................................................................................16
Multimedia System Control Head E380..............................................................................................18

Network systems................................................................................20
Optical data bus system MOST150......................................................................................................21

Bluetooth interfaces...........................................................................22
Bluetooth interface for MMI® radio.....................................................................................................22
Bluetooth interface for MMI® navigation plus and MMI® navigation plus with Audi connect.......23

Audi Connect......................................................................................25
Overview.................................................................................................................................................25
Audi connect requirements..................................................................................................................26
Audi connect advantages......................................................................................................................26
Audi connect availability.......................................................................................................................26
Audi connect feature overview.............................................................................................................27
myAudi....................................................................................................................................................28
Audi connect app (2015 Audi A3)........................................................................................................28

Navigation and mobility.....................................................................29
Communication..................................................................................31
Glossary..............................................................................................32

i

This eSSP contains video links which you
can use to access interactive media.

This eSelf Study Program provides a basic knowledge of the design and functions of new models,
new automotive components or technologies.
It is not a Repair Manual! All values given are intended as a guideline only.
For maintenance and repair work, always refer to the current technical literature.

Note

Reference

Introduction
In response to the speed at which the development cycles
for information and entertainment systems occur, the
automotive industry has had to shorten its development
cycles as well. Keeping up to date with the latest advances is
a growing challenge for car makers.
To meet this challenge, the Volkswagen Group has introduced the Modular Infotainment Platform (MiB*).
Central to the development of the MIB, Information Electronics Control Module 1 J794, has been re-designed as a
modular component. The control module architecture allows
the hardware to be easily and economically updated so that
it always incorporates the latest technological advances.
An important component is the graphics processor made by
market-leader Nvidia, with whom Audi enjoys a very
successful business relationship. The latest Nvidia processors will continue to be used in Audi vehicles in the future.
The new platform means that it will be possible to use the
same central processing units (J794) across the entire
Group. So, in the future it will be possible to run brand-specific variants on four standardized hardware platforms.

differences between the systems. The systems used by Audi
will always be recognizable as genuine Audi MMI®.
With the MIB, components that are not subject to rapid
development, such as radio tuners or audio amplifiers, can
remain as they are. Put simply, that means that only the
MMX (Multi Media Extension) board in J794 is upgraded.
On the 2015 Audi A3, the MMX is equipped with an Nvidia
Tegra T20 dual-core processor with a clock speed of 1.2 GHz.
If the MMX board is upgraded in the future, the changes
required can be compared with replacing the motherboard
and graphics card in a home PC to make it faster.
The software for the MIB is also modular in design. This
means that in the future both “old” and “new” software will
be used together on a new control module.
The “old” software might be the CAN data protocol, while
applications such as the Bluetooth profiles are likely to
require the development of “new” software.
*Terms written in italics and marked with an asterisk are explained
in the Glossary at the end of this eSelf-Study Program.

For the purposes of differentiation, features such as the user
interfaces and controls will be individually adapted for each
brand. Customers will thus be able to identify distinctive

Information Electronics Control Module 1 J794

618_001
1

On a world-wide basis, Audi offers three main configuration
levels for the Modular Infotainment Platform:

•
•
•

Entry MIB
Standard MIB
High-spec MIB

Each of the main configurations has its own sub-configurations depending on the optional equipment installed. All of
the MIB configurations use Information Electronics Control
Module 1 J794 as the central processing unit.

Front panel of J794 for Entry MIB

618_003

Front panel of J794 for Entry plus MIB

618_004

Front panel of J794 for Standard MIB,
navigation system version

618_006

Front panel of J794 for Standard MIB, radio version*

618_005

Front panel of J794 for High-spec MIB**

618_007

Front panel of J794 for High-spec MIB
with Audi Connect***

618_008

Depending on version, J794 controls the following functions:

•
•
•
•
•
•
•
•
•
•
•
•

Control of information and entertainment systems
System master and diagnostics master for MOST
Radio tuner
Digital radio tuner (SDARS*)
CD* or DVD* drive
Internal audio amplifier for Audi sound system with 180 watts
power (6 channels, 3 x 20W + 3 x 40W) (9VD)
Up to two SD* card readers
Bluetooth interface (HFP*, A2DP* and, with Bluetooth car
phone, also SAP*)
Telephone module and SIM* card reader
Navigation system
Voice control
WiFi hotspot

In the North American market, three versions of the MIB will
be available beginning with the 2015 Audi A3*. They are:

•
•
•

Standard MIB (Audi MMI® radio*)
High spec MIB (Audi MMI® navigation plus**)
High spec MIB (Audi MMI® navigation plus with Audi connect***)

Click here for a closer look at the Audi
A3 sedan Modular Infotainment
System.

2

Standard MIB
In terms of functionality and specifications, the Standard
MIB is comparable with the RMC Radio Media Center. This
will be marketed in the North American region as Audi MMI®
radio.

J794 for the Standard MIB always has a MOST bus connection. If no optional equipment requiring MOST data transfer
is installed, the MOST connection is unused.

Standard MIB (MMI® radio)
MMI® radio is based on the Standard MIB and offers the
following features:

•

•
•
•
•

Radio with phase diversity module, FM twin tuner (frequency
modulation) and AM tuner (amplitude modulation)
Single CD drive which supports MP3, WMA and AAC* files
An SD card reader for MP3, WMA and AAC files
Car menu
Motorized 5.8-inch color TFT* screen with 400 x 240 pixel
resolution
A discrete control panel in the center console
AUX IN socket (UE3)
SDARS Tuner (digital radio) (QV3)
Internal audio amplifier for Audi sound system with 180 watts

•

power (6 channels, 3 x 20W + 3 x 40W) (9VD)
Bluetooth interface for HFP and A2DP (9ZX)

•
•
•
•

MMI® screen for Standard MIB (Audi MMI® radio)

618_016a

Standard MIB can also be equipped with the following
optional feature:

•

Audi music interface (UE7)

The PR number for the Standard MIB is I8D with the suffix 7Q0.
Audi MMI® navigation plus is not available on the Standard MIB
version.

Front panel of J794 for Standard MIB, (Audi MMI® radio) 618_005

Private CAN High

Information/entertainment CAN High

FM1/AM radio signal input
FM2 radio signal input
SDARS radio signal input
Video output for MMI® display

USB* connection to AMI

Rear panel of J794 for Standard MIB, (MMI® radio)

Private CAN Low
MOST bus connection

Information/entertainment
CAN Low

618_018 3

CAR Functions
The MIB can be used to enter and view settings on various
vehicle systems. Listed and illustrated below are the systems
and functions currently supported on the 2015 Audi A3.

618_024a

Information Electronics Control Module 1 J794
− Language master >
−− GPS time >

Instrument Cluster Control Module J285
−− Time master >
−− Service interval display
(for example, oil change service) >
−− Learned keys >
−− Speed warning <
−− Units master (kph/mph, etc.) >

Vehicle Electrical System Control Module J519
−− Central locking (for example, easy-open function
for windows, locking while driving) <
−− Ambient lighting <
−− Exterior lighting
(for example, automatic headlights) <

Lane Change Assistance Control Module J769
−− Audi side assist <
ABS Control Module J104
−− Tire pressure monitoring <

Parallel Parking Assistance Control Module J791
−− Park assist <

Driver Assistance Systems Front Camera R242
−− Audi active lane assist <
Distance Regulation Control Module J428
−− Audi pre-sense <

Climatronic Control Module J255
−− Automatic air recirculation <

Key:
< Settings can be entered using the MMI®
> Information is provided
4

Data Bus On Board Diagnostic Interface J533
−− Audi drive select <
−− Ring break advisor <

618_025

High spec MIB with navigation
The High-spec MIB is the current high-end version of the
Modular Infotainment Platform. Two versions will be available in the North American market. In both versions, Information Electronics Control Module 1 J794 has a MOST bus
connection. If no other optional equipment requiring a
MOST connection is installed on the vehicle, the connection
is not used.
The High-spec MIB represents a consistent step forward
from the 3G + MMI and features new 3D screen views and
SSD* solid state drive.

Front panel of J794 for High-spec MIB without
Audi connect (MMI® navigation plus)

618_007

Rear panel of J794 for High-spec MIB

618_027

As mentioned earlier, Information Electronics Control
Module 1 J794 MIB incorporates an Nvidia Tegra processor.
It is a multi-core processor that generates ultra-high resolution graphics as well as offering faster rendering of current
audio and video formats. The Tegra chip requires substantially less energy than previous multimedia processors and
fits perfectly with the Audi efficiency philosophy.
The Tegra chip can display entire cityscapes in three-dimensional views – the driver sees the street that he is driving
along in photo-realistic quality.
The High-spec MIB is also the only version of the MIB that
can play video files directly.
The High-spec MIB offers the following features:

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

Radio with phase diversity module, FM twin tuner (frequency
modulation) and AM tuner (amplitude modulation)
Single DVD drive for audio and video files
Two SD card readers for audio and video files
SSD solid state drive (64 GB)
Jukebox (approximately 11GB on the 2015 Audi A3)
3D navigation system with navigation data on SSD
(data supplier: Navteq)
Audi MMI® touch
Audi music interface
Car menu
Bluetooth interface for HFP and A2DP
Premium interactive voice control system
Provision of predictive route data
7.0-inch motorized TFT display

Front panel of J794 for High-spec MIB with Audi connect 618_008
(MMI® navigation plus with Audi connect)

Discrete control panel with MMI® touch in center console
AUX IN socket (UE3)
SDARS tuner (NAR spec digital radio) (QV3)
Internal audio amplifier for Audi sound system with 180 watts
power (6 channels, 3 x 20W + 3 x 40W) (9VD)

Rear panel of J794 for High-spec MIB
with Bluetooth and Audi connect

618_029

5

The High-spec MMI® can also be equipped with the following
optional features:

•
•

DIS with trip computer
Audi connect with online services

The High-spec MIB is identified by the PR numbers I8G and 7UG.

Main menu on High-spec MIB

618_030a

Jukebox with Coverflow

Private CAN High (to E380)

618_031a

Information/entertainment
CAN High

Telephone antenna connection
GPS signal input
FM1/AM radio signal input
SDARS radio signal input
FM2 radio signal input

Rear panel of J794 for High-spec MIB

6

USB connection to AMI
Video output for MMI® display
Private CAN Low (to E380)

Information/entertainment CAN Low
MOST bus connection

618_034

The High-spec MIB features a navigation system with 3D
map display. It displays the silhouettes of many city centers
as a three-dimensional view. Many places of interest are also
shown in 3D.

On the High-spec MIB, ten destinations can be entered for
each route. In other words, nine intermediate destinations
and the final destination. In all, twenty route plans can be
created.

The navigation map data for the High-spec MIB is stored on
the SSD solid state drive. The current map supplier for the
High-spec MIB is Navteq. The map data also includes predictive route data. This is sent by Information Electronics
Control Module 1 J794 via the MOST bus to Data Bus On
Board Diagnostic Interface J533. J533 distributes the data
via the various bus systems to the control modules that use
the predictive route data.

The High-spec MIB with the Audi connect option offers the
following additional services:

•
•
•
•

Google EarthTM map
Google Street ViewTM
Points-of-interest search online
Picture destinations

The navigation system has a voice control facility featuring
whole-word entry. The navigation system offers whole sentence destination entry (one-shot entry).

Main menu with navigation map

618_030b

Map view on High-spec MIB

618_033a

Navigation view with Google Earth map

618_068a

Navigation view with Picture destinations

618_068b

7

Radio tuner
The analog radio receiver for the MIB system is always integrated in Information Electronics Control Module 1 J794.
Depending on vehicle options, J794 may also include the
SDARS radio tuner. The radio tuners support most RDS*

services available today. The RDS services available depend
on the station being received at the time. The basic design of
the radio tuners for the Standard and High-spec MIB versions are explained below.

Analog tuner reception concept
Standard MIB
The analog radio receiver for the Standard MIB (MMI® radio)
has a two separate receivers in total.
Tuner 1 is an AM/FM tuner (see schematic diagrams on
pages 9 and 10). AM reception is provided exclusively by
Tuner 1. Tuner 2 is an additional FM tuner.
If FM reception is poor, the selected station is received
simultaneously by Tuner 1 and Tuner 2. The two signals are
then merged to form a combined signal.

The separate station memory can be used to create a personalized station list. It can store up to 50 stations from any
reception area and lists them in the user-defined order.
The radio supports the Radiotext and Radiotext Plus data
services. This enables program-related information to be
displayed if broadcast by the station concerned (for example,
artist, title, current program).

If the signal received by one of the tuners is good enough to
ensure interference-free reception and playback through the
speakers is possible, the other tuner is used for the station
search function. The best antenna signal is always used for
audio output (role swapping).
Because a station search is carried out at regular intervals,
the main screen of the FM radio menu is constantly updated
with the FM radio stations currently receivable. The station
list is thus kept up to date and unavailable stations removed
from the list.
The AM station list is also updated in FM mode if the reception conditions allow – in which case Tuner 2 provides the FM
audio signal and Tuner 1 performs the AM station search.

Display of radio menu during FM reception

Audio
amplifier

Sirius XM
decoder

Sirius XM tuner

618_041a

FM phase
diversity unit

Tuner 1
AM/FM

RDS

Tuner 2
FM

RDS decoder
Antenna switch
HD decoder