Audi MIB Series Manual

Service Training
Audi
Modular Infotainment System (MIB)
Self Study Programme 994618AG Audi

The material in this Self Study Program (SSP) may contain technical information or reference vehicle systems and configurations which are not available in the Canadian market.Please ensure you reference ElsaPro for the most current technical information and repair procedures.

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Modular Infotainment System (MIB*)
The Modular Infotainment System is another milestone achieved by the Volkswagen Group and in future will replace the information and
entertainments systems used up to now.
The control unit architecture allows the hardware to be easily and economically updated so that it always incorporates the latest advances.
An important component is the fast 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 cars in the future.
The new platform means that it will be possible to use the same central processing units (electronic information systems control unit 1
J794) across the entire Group. So in future it will be possible to run brand-specific variants on four standardised hardware platforms. For
the purposes of dierentiation, features such as the user interfaces and controls will be individually adapted for each brand. Customers will
thus be able to identify distinctive dierences between the systems. And the system used in an Audi will always be recognisable as a
genuine Audi MMI.
The Modular Infotainment System (MIB) was first used on the Audi A3 ’13.
In all Audi oers three MIB configuration levels:
• Entry MIB
• Standard MIB
• High-spec MIB
One Group brand is responsible for each of those configuration levels. Audi is responsible for developing the High-spec MIB, Volkswagen for
the Standard MIB and Skoda for the Entry MIB.

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Contents
Note
Reference
• The self-study programme provides information on the fundamentals of the design and function of new
vehicle models, new automotive components or new technologies.
The self-study programme is not a repair manual! Any figures quoted merely serve the purpose of facili-
tating understanding and relate to the software version valid at the time the SSP was produced.
For details of servicing and repair operations, it is imperative that you refer to the latest technical literature.
* Terms written in italics and marked with an asterisk are explained in the Glossary at the end of this self-
study programme.
Introduction __________________________________________________________ 4
Entry MIB _____________________________________________________________ 6
Entry Plus MIB ________________________________________________________ 7
Standard MIB _________________________________________________________ 8
Standard MIB radio version _________________________________________________________________________________________________________________________________ 8
Standard MIB navigation system version _________________________________________________________________________________________________________________ 9
High-spec MIB ______________________________________________________ 12
Navigation system with High-spec MIB _________________________________________________________________________________________________________________ 14
Radio tuner _________________________________________________________ 15
Analogue tuner reception concept _______________________________________________________________________________________________________________________ 15
DAB tuner reception concept _____________________________________________________________________________________________________________________________ 20
Disk drives and storage media ______________________________________ 22
Media playback _____________________________________________________________________________________________________________________________________________ 22
Telephone options __________________________________________________ 26
Bluetooth interface ________________________________________________________________________________________________________________________________________ 26
Universal mobile phone pre-wiring (Audi Phone Box) __________________________________________________________________________________________________ 27
Bluetooth car phone online (Audi connect inc. car phone) ____________________________________________________________________________________________ 28
Audi connect (market-dependent) _______________________________________________________________________________________________________________________ 29
Address book _______________________________________________________________________________________________________________________________________________ 31
MMI display J685 ___________________________________________________ 33
Video transmissions to J794 ____________________________________________________________________________________________________________________________ 34
Control panel _______________________________________________________________________________________________________________________________________________ 36
Networking _________________________________________________________ 38
Optical data bus system MOST150 ______________________________________________________________________________________________________________________ 39
Fault diagnosis______________________________________________________ 40
Overview of PR numbers for MIB _________________________________________________________________________________________________________________________ 41
General overview of MIB on Audi A3 ’13 ________________________________________________________________________________________________________________ 42
Appendix ___________________________________________________________ 44
Glossary* ___________________________________________________________________________________________________________________________________________________ 44

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!
Note
If the electronic information systems control unit 1 J794 is replaced by an Audi dealer, it is replaced with an identical control
unit oering the same features.
Introduction
Why does Audi use the Modular Infotainment System?
Due to the high pace of development in the field of multimedia
applications, keeping up to date with the latest advances is a
growing challenge for car makers. One example is that many
mobile phone manufacturers update their top-of-the-range
products every year while also extending the software functional-
ity. Car owners, in turn, want to be able to connect the latest
mobile phones to the in-car entertainment and communication
systems.
To keep up with the speed at which requirements are changing,
the development cycles for information and entertainment
equipment in the automotive industry have to be made shorter as
well.
To make that achievable, the electronic information systems
control unit 1 J794 has been designed as a modular unit. That
means that in future new designs will only need to be produced
for some control units while other hardware can be retained.
Thus the components that are not subject to such rapid develop-
ment, such as radio tuners or audio amplifiers, can remain as they
are.
Put simply, that means that only the computer (MMX board) in
the electronic information systems control unit 1 is upgraded. The
MMX (Multi Media Extension) board itself is equipped with an
Nvidia dual-core processor on the Audi A3 '13. Specifically, it is
the Tegra T20 unit which has 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 so that in the
future both "old" and "new" software will be used together on a
new control unit. The "old" software might then be the CAN data
protocol, while applications such as the Bluetooth profiles are
likely to frequently require the development of "new" software.
Schematic diagram of MMX board

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Audi oers three configuration levels for the Modular Infotain-
ment System:
• Entry MIB
• Standard MIB
• High-spec MIB
With each version of the MIB, the central control unit fitted is the
electronic information systems control unit J794. On the
Audi A3 '13, for example, it is fitted in the glove compartment.
The electronic information systems control unit 1, J794, com-
prises the following control units and functions, depending on
version:
• Control of information and entertainment systems
• System master and diagnostics master for MOST
• Radio tuner
• Digital radio tuner (DAB or SDARS*)
• CD* or DVD* drive
• Audio amplifier (up to 180watts)
• 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
• SSD* solid state drive (64 GB)
• Voice control
• WiFi hotspot
Front panel of J794 for Entry MIB
Front panel of J794 for Entry plus MIB
Front panel of J794 for Standard MIB, radio version
Front panel of J794 for Standard MIB,
navigation system version
Front panel of J794 for High-spec MIB
Front panel of J794 for High-spec MIB
with Bluetooth car phone (SIM card reader)

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The Entry MIB is intended as the entry-level information and
entertainment system.
The Entry MIB is operated by means of control panel E380, which
is fitted in the dashboard and also incorporates the display unit.
No optional features are oered with the Entry MIB.
The Entry MIB oers the following features:
• Radio with phase diversity module for FM* (frequency modula-
tion) and AM (amplitude modulation)
• Single CD drive which supports MP3* and WMA* files
• Integrated amplifier with 4 x 20 watts max. power
• AUX IN* socket
• Car configuration via Setup button
• All-in-one display and control panel
The E380 control panel fitted in the dashboard features a 3.4-inch
monochrome display. On the Audi A3 '13, the control panel folds
in and out mechanically. When folded away, the media and
volume control buttons remain accessible.
The PR number for the Entry MIB is "i8A".
Entry MIB
FM2 radio signal input
FM1/AM radio signal input
Display and control panel E380 for Entry MIB
Front panel of J794 for Entry MIB
Private CAN High (to E380)
Information/entertainment CAN High
Private CAN Low (to E380) Information/entertainment CAN Low
Rear panel of J794 for Entry MIB

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The Entry plus MIB diers from the Entry MIB outwardly by virtue
of a discrete control panel and separate MMI display. In hardware
terms, it is fundamentally an Entry MIB but its outward appear-
ance is the same as the Standard MIB without optional features.
The Entry plus MIB oers the following features in addition to the
MIB Entry:
• An SD card reader for MP3 and WMA files
• Colour TFT display with 400 x 240 pixel resolution
• A discrete control panel in the centre console
On the Audi A3 '13, the MMI display has a diagonal screen size of
5.5 inches and folds in and out with the aid of a motorised mecha-
nism.
The radio station list for FM reception is automatically updated.
Optional features are available for the Entry plus MIB. They are:
• Monochrome or colour driver information system
• Multi-function steering wheel
The PR number for the Entry plus MIB is "i7X".
Entry plus MIB
FM2 radio signal input
FM1/AM radio signal input
MMI display for Entry plus MIB on Audi A3 '13
Front panel of J794 for Entry plus MIB
Private CAN High
Information/entertainment CAN High
Private CAN Low Information/entertainment CAN Low
Rear panel of J794 for Entry plus MIB
Video output for MMI display J685

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In terms of functionality and specifications, the Standard MIB is comparable with the RMC Radio Media Center. There are radio and naviga-
tion system versions of the Standard MIB.
The electronic information systems control unit 1 J794 for the Standard MIB always has a MOST bus connection. If no additional equip-
ment that requires a MOST bus is fitted, the MOST bus connection is unused.
Standard MIB
FM2 radio signal input
FM1/AM radio signal input
Private CAN High
Information/entertainment CAN High
Private CAN Low
Information/entertainment
CAN Low
Rear panel of J794 for Standard MIB, radio version
Standard MIB radio version
The radio version of the Standard MIB oers the following fea-
tures:
• 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
• Integrated amplifier with 4 x 20 watts max. power
• Car menu
• 5.8-inch colour TFT screen with 400 x 240 pixel resolution
• A discrete control panel in the centre console
• AUX IN socket (UE3)
On the Audi A3 '13, the MMI display has a diagonal screen size of
5.8 inches and folds in and out with the aid of a motorised mecha-
nism.
The radio version of the Standard MIB can also be equipped with
the following optional features:
• DAB tuner (digital radio) (QV3)
• Internal audio amplifier for Audi sound system with 180 watts
power (6 channels, 3 x 20W + 3 x 40W) (9VD)
• Audi music interface (UE7)
• Bluetooth interface for HFP and A2DP (9ZX)
• Universal mobile phone pre-wiring (9ZE)
• Interactive voice control
The PR number for the Standard MIB is "i8D" with the sux "7Q0"
for the radio version (7Q0 means "without navigation system").
MMI screen for Standard MIB without
navigation system on Audi A3 '13
Front panel of J794 for Standard MIB, radio version
DAB radio signal input
Video output for MMI display
USB* connection to AMI MOST bus connection

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FM2 radio signal input
FM1/AM radio signal input
Private CAN High
Information/entertainment
CAN High
Private CAN Low
Information/entertainment
CAN Low
Rear panel of J794 for Standard MIB, navigation system version
Front panel of J794 for Standard MIB,
navigation system version
Display for specific destination search
DAB radio signal input
Video output for MMI display
USB connection to AMI
GPS signal input MOST bus connection
Standard MIB navigation system version
If the radio-version MMI is set up for the navigation function, it
also has the following features:
• Second SD card reader
• Navigation system hardware
If the navigation function is activated on the radio-version MMI at
the factory, the navigation map data is also available in the car on
an SD card.
The navigation system data is currently supplied by the company
Navteq. For the European version, an 8-GB SDHC* card is currently
used.
The navigation system has a two-dimensional birds-eye view map
display.On the Setup menu it is referred to as the 3D map.There is
the possibility, depending on sales market, of displaying the
currently applicable maximum speed limits or the guideline
maximum speeds for the country concerned.
The navigation system uses a real ecological route calculation
algorithm and also oers the option of choosing between three
alternative routes. In addition, you can create a route with an
intermediate destination. If the driver takes a break, the route last
used is automatically resumed.
With the Standard MIB, the navigation system now oers the
option of entering a destination using the voice control function
as well as by manually entering an address. When doing so, the
user is assisted by predefined MMI prompts.
The PR numbers below indicate whether the Standard MIB is one
that is navigation-ready or with the navigation system pre-acti-
vated:
• Navigation-ready: 7UH
• Basic navigation system activated: 7UF
MMI screen for Standard MIB with
active navigation system on Audi A3 '13

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Navigation system activation
With the navigation-ready version, all the components required
fore the navigation function are already fitted on the vehicle. An
Audi dealer can then activate the navigation function on the
electronic information systems control unit 1 J794 with the aid of
the vehicle diagnostic tester.
After activation of the navigation function, the map data to be
used must also be activated. The necessary activation documents
for doing so are obtainable from the Audi Genuine Accessories
range.
To be able to use the navigation system, two components are
therefore required:
• An activation document for the navigation function
• Up-to-date map data (on SD card) together with activation
document allowing licensed use of the navigation map
MMI display with unactivated
navigation function
Reference
More information on the activation procedure can be obtained from SSP 477, starting on page 98.

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Possible 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 cur-
rently supported on the Audi A3 ’13.
Electronic information systems control unit 1
J794
− Language master >
− GPS time >
Instrument panel control unit
J285
− Time master >
− Service interval display
(e.g. oil change service) >
− Taught keys >
− Speed warning <
− Units master (kph/mph, etc.) >
ABS control unit
J104
− Tyre pressure monitoring <
Adaptive cruise control unit
J428
− Audi pre-sense <
Data bus diagnostic interface
J533
− Audi drive select <
− Break advisor <
Climatronic control unit
J255
− Automatic air recirculation <
− Supplementary heater <
Key:
< Settings can be entered on MMI
> Information is provided
Driver assistance systems front camera
R242
− Audi active lane assist <
− Road sign recognition <
Park assist steering control unit
J791
− Parking assistance <
Lane change assist control unit
J769
− Audi side assist <
Electrical system control unit
J519
− Central locking (e.g. easy-open function for
windows, locking while driving) <
− Ambient lighting <
− Exterior lighting
(e.g. automatic headlights) <

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The High-spec MIB is the current high-end version of the Modular
Infotainment System. The electronic information systems control
unit 1 J794 for the High-spec MIB always has a MOST bus connec-
tion. If no additional equipment connected via MOST bus is fitted,
the MOST bus connection is unused.
The High-spec MIB represents a consistent step forward from the
3rd Generation plus MMI and features a new 3D screen views and
SSD* solid state drive.
The electronic information systems control unit 1, J794, for the
High-spec MIB incorporates an Nvidia Tegra processor. As a multi-
core processor, it generates ultra high-resolution graphics as well
as oering faster rendering of current audio and video formats.
The Tegra chip requires substantially less energy than previous
multimedia processors and so fits perfectly with the Audi e-
ciency philosophy.
The Tegra chip can display entire cityscapes in three-dimensional
views – the driver sees the street that he/she 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 oers 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 (approx. 11 GB on Audi A3 '13)
• 3D navigation system with navigation data on SSD (data
supplier: Navteq)
• Integrated amplifier with 4 x 20 watts max. power
• Audi music interface
• Car menu
• Bluetooth interface for HFP and A2DP
• Premium interactive voice control system
• Provision of predictive route data
• 7.0-inch motorised TFT display
• Discrete control panel with MMI touch in centre console
• AUX IN socket (UE3)
High-spec MIB
Front panel of J794 for High-spec MIB
Rear panel of J794 for High-spec MIB
Rear panel of J794 for High-spec MIB
with Audi connect inc. car phone
Front panel of J794 for High-spec MIB
with Bluetooth car phone

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The High-spec MMI can also be equipped with the following
optional features:
• Universal mobile phone pre-wiring (9ZE)
• Audi connect including car phone (9ZK)
• DAB tuner (digital radio) (QV3)
• 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)
If the High-spec MIB is equipped with the Bluetooth car phone, it
also has the Audi connect option. With the introduction of the
Modular Infotainment System, the marketing name for "Bluetooth
car phone" has been changed to "Audi connect including car
phone".
The High-spec MIB is identified by the PR numbers "i8G" and
"7UG".
Main menu on High-spec MIB
Jukebox with Coverflow
Video output for MMI display
GPS signal input
FM1/AM radio signal input
DAB radio signal input
Telephone aerial connection
Private CAN High (to E380)
Information/entertainment
CAN High
Private CAN Low (to E380) Information/entertainment CAN Low
MOST bus connection
Rear panel of J794 for High-spec MIB
FM2 radio signal input
USB connection to AMI

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Navigation system with High-spec MIB
The High-spec MIB features a navigation system with 3D map
display. It displays the silhouettes of many city centres as a
three-dimensional view. Many places of interest are also shown in
3D.
The navigation map data for the High-spec MIB is stored on the
SSD solid state drive. The 2012 map information for Europe, for
example, occupies approx. 23 GB of storage space. The current
map supplier for the High-spec MIB is Navteq.
The map data also includes predictive route data. This is sent by
the electronic information systems control unit 1 J794 via the
MOST bus to the data bus diagnostic interface J533. The J533
distributes the data via the various bus systems to the control
units that use the predictive route data.
The navigation system has a voice control facility featuring whole-
word entry. Depending on the country of sale, the navigation
system may also oer whole-sentence destination entry (one-shot
entry).
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.
Depending on sales market, chargeable trac information serv-
ices may be available in addition to the free-of-charge services. If
they are available as factory-fit options, the licence fees will be
included in the price of the vehicle. As an example, the following
trac information services are available in Germany:
• TMC*
• TMCpro (requires licence)
The High-spec MIB with the Audi connect option may also oer
the following additional services on the navigation system,
depending on market:
• Google EarthTM map
• Google Street ViewTM
• Trac information online
• Points-of-interest search online
• Picture destinations
Main menu with navigation map
Map view on High-spec MIB
Navigation view with Google Earth map
Reference
More information on predictive route data can be obtained from SSP 456 on page 92 under the heading "Navigation data
based vehicle support".

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Display of radio menu during FM reception
Reference
Information on the various RDS services can be found on page 34 of Self-study Programme 435 – Audi 3rd Generation MMI.
The analogue radio receiver unit for the Modular Infotainment System is always integrated in the electronic information systems control
unit 1 J794. Depending on the equipment options fitted, the J794 may also include a DAB radio tuner.
The radio tuners support most of the RDS* services generally available today. Which particular RDS services are actually available in each
case depends on the station being received at the time in question.
The basic designs of the radio tuners for the Standard and High-spec MIB versions are explained below.
Analogue tuner reception concept
Standard MIB
The analogue radio receiver (tuner) for the Standard MIB has a two separate receivers in total.
Tuner 1 is an AM/FM tuner (see schematic diagrams on pages 16 and 17).
AM reception is provided exclusively by Tuner 1.
Tuner 2 is an additional FM tuner.
Radio tuner
If FM reception is poor, the selected station is received simultane-
ously by Tuner 1 and Tuner 2. The two signals are then merged to
form a combined signal.
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 aerial-tuner path 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.
Furthermore, 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.
If a navigation system is fitted, a third FM tuner (Tuner 3) is fitted
for receiving TMC* data. That tuner continues to be used for
monitoring trac bulletins if the audio tuner is not tuned to a TP
station. It is also used for the station search function if the recep-
tion conditions require the use of aerial diversity.
The separate station memory can be used to create a personalised
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 programme-related information to be displayed if
broadcast by the station concerned (e.g. artist, title, current
programme).

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DAB tuner
DAB tuner
MOST interface
MOST interface
Tuner 1
AM/FM
Tuner 1
AM/FM
Tuner 2
FM
Tuner 2
FM
Tuner 3
FM
DAB decoder
DAB decoder
RDS decoder
RDS decoder
RDS decoder
FM phase
diversity unit
FM phase
diversity unit
RDS
RDS
Audio
amplifier
Audio
amplifier
Sound
processor
Sound
processor
Schematic diagram of radio tuner for Standard MIB without navigation system
Schematic diagram of radio tuner for Standard MIB with navigation system
Navigation
MMI display/instrument cluster
MMI display/instrument cluster
Aerial switch
Aerial switch

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Sirius XM
tuner
MOST interface
Tuner 1
AM/FM
Tuner 2
FM
Sirius XM
decoder
RDS decoder
HD decoder
FM phase
diversity unit
RDS
Audio
amplifier
Sound
processor
Schematic diagram of radio tuner for Standard MIB for NAR market
MMI display/instrument cluster
Aerial switch

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High-spec MIB
The analogue radio receiver for the High-spec MIB has a three
separate receivers (tuners) in total. That means that both the
station search and the aerial diversity function take place simulta-
neously.
During FM reception, the selected station is permanently simulta-
neously received by Tuners 1a and 1b. The two signals are then
merged to form a combined signal. As a result, the best possible
reception is obtained.
Tuner 2 functions as a separate tuner for permanent AM/FM
station searching and for receiving TMC data and monitoring voice
trac reports. It is not used for audio reception of the radio
station currently selected. Because the station search function is
constantly active, the main screen of the FM radio menu always
shows all FM radio stations currently receivable. The station list is
thus kept permanently up to date and unavailable stations
removed from the list.
AM reception is provided by Tuner 1a.
Tuner 2 is an additional AM tuner which constantly updates the
AM station list in the background.
The separate station memory can be used to create a personalised
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 programme-related information (e.g. artist, title,
current programme) to be displayed if broadcast by the station
concerned.
Display of radio menu during FM reception

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DAB tuner 1
Sirius XM
tuner
Sirius XM
decoder
DAB tuner 2
MOST interface
MOST interface
Tuner 1a
AM/FM
Tuner 1a
AM/FM
Tuner 1b
AM/FM
Tuner 1b
FM
Tuner 2
AM/FM
Tuner 2
FM
DAB
decoder
RDS decoder
RDS decoder
FM phase
diversity unit
FM phase
diversity unit
RDS
RDS
Audio
amplifier
Audio
amplifier
Sound
processor
Sound
processor
Schematic diagram of radio tuner for High-spec MIB for ECE market
Schematic diagram of radio tuner for High-spec MIB for NAR market
Navigation
Navigation
MMI display/instrument cluster
MMI display/instrument cluster
HD decoder