91 MIB2 High Scale: Bluetooth call distorted audio or black screen for Apple CarPlay after using backup
camera
91 20 07 2046294/5 September 2, 2020. Supersedes Technical Service Bulletin Group 91 number 20-82 dated
July 10, 2020 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A4

2017

All

MMI Radio Plus

Condition
REVISION HISTORY
Revision

Date

Purpose

5

-

Revised title
Revised Condition (Removed Tip and escalated Note)
Revised Service (Updated procedure)
Revised Warranty (Updated table)

4

07/10/2020

Revised Condition (Added Tip not to perform on 91U7 vehicles)

3

03/17/2017

Revised Condition (Added video clip URL and QR code)

Customer states:
 The vehicle is equipped with MMI Radio plus (PR Code 7UH).
One or both of the following concerns is applicable:
 When using Bluetooth hands-free calling the caller hears
distorted audio from the driver that can be described as a
“robotic or electronic sound”. To hear two examples of the
distorted audio during a Bluetooth call, see the video located at:
https://audi-external.kzoplatform.com:443/swf/player/336 (Figure
1).

Figure 1. QR code for an example of the
clicking noise.

Page 1 of 5
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document 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, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

 When trying to use Apple CarPlay the screen is blank only after using the backup camera. This issue occurs
immediately after exiting the camera image by driving forward or by manually pressing the parking aid button
to deactivate the backup camera image

Warning:
The vehicle was built before CW22 of 2016. All cars built after should not be updated. Doing so can damage the
MMI system, which can only be fixed by replacing the MMI hardware. This type of replacement is not covered
under Warranty.

Technical Background
These are known software concerns which only exist on 2017 A4 vehicles which were built with the base MMI
system that does not have navigation nor an internal jukebox hard drive. This MMI system is called MIB2 High
Scale (or MMI Radio Plus). The concern was resolved in vehicles built after CW22/16 with SW0110 or service
SW0118 or higher.
How to reproduce the Bluetooth hands-free call concern:
1. Pair phone to the MMI.
2. Allow the phone book to sync to the MMI.
3. Initiate a call using the MMI.
4. Ask the caller if your voice sounds distorted or electronic.
How to reproduce the CarPlay blank screen concern:
1. Let the vehicle bus go to sleep (MMI must be completely asleep and not initialized).
2. Disconnect ODIS, roll up the windows, and lock the car for 3-5 minutes.
3. Once asleep, unlock and start the vehicle.
4. Connect an iPhone to the MMI using USB slot 1.
5. Allow CarPlay to load and show in the MMI display.
6. Shift the car into reverse or push the parking aid button to activate the rear camera.
7. Shift the car into drive and drive off or manually turn off the parking aid using the button.
8. At this point, the MMI screen will go black if the customer’s car is affected. The audio playing from CarPlay will
continue, but the MMI screen will go black.
9. To fix the concern disconnect and reconnect the iPhone from the USB.

Production Solution
Page 2 of 5
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document 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, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Software improvement introduced into series production.

Service
The service solution is to update the MMI software to SW0118 to fix the Bluetooth call and CarPlay blank screen
concern when coming out of reverse only for MMI Radio plus.
Note:
If the MMI software is SW0061 then this update can possibly remove the Speech Dialog System (VR)
feature. Please test the Voice Recognition/Speech Dialog System after performing the update. If the VR/SDS
feature is no longer available, a message of “Please wait” is seen after pressing the button on the steering wheel,
then contact the Audi Technician’s helpline. If the MMI hardware has been replaced, first perform the GFF
replacement test plan before proceeding with this update.
Required equipment:
 ODIS Tester
 MIB2 High Scale Software Update on SD Card (See required parts & tools information table below)
 SVM code MI2HSNAR130 (also listed in steps below)
 Software update instructions (audi_mib_two_high_scale_software_update_instructions.pdf)
Time to complete update:
 Approximately 90 minutes (includes S/W update and SVM work)
Repair procedure:
1.

Verify the customer’s MMI requires the software
update by going to the Main Menu >> Settings >>
Left drawer option >> Version Information (Figure 2).
Note:
Software versions 0061 & 0081 are only the versions
that can be updated. If the MMI is at level 0110,
0116, or 0118, then this TSB does not apply. Cars
built after CW22/16 have SW0110 and these
vehicles are NOT compatible with this
software. Updating a car with SW0110 can damage Figure 2. MMI Version Information
the MMI.

Page 3 of 5
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document 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, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

2.

Update the MIB2 High Scale infotainment system using either Method 1 or Method 2 according to TSB
2050565: 91 MIB2 High Scale Software Update Instructions (PR Code 7UH) and use SVM code
MHS2US0138.

Vehicle

SD Creator Part Number

SVM Code

A3, A4, A5, and Q5 8V0906961AL

MHS2US0138

A3, A4, A5, and Q5 8V0906961AM

MHS2SFIX

3.

After the update in step 2 is finished, the changes from campaign 91U7 have to be reapplied by running
SVM MHS2SFIX with SD Card 8V0906961AM.

Warranty
Claim Type:

 110 up to 48 months/50,000 miles.
 G10 for CPO Covered Vehicles - Verify Owner.
 If the vehicle is outside any warranty, this Technical Service Bulletin is
informational only.

Service Number:

9196

Damage Code:

0039

Labor Operations:

Software Update (Includes checking for
DTCs)

0151 0000

See TSB
#2050565

Diagnostic Time:

GFF

No allowance

0 TU

Road test prior to the service procedure

No allowance

0 TU

Road test after the service procedure

No allowance

0 TU

Claim Comment:

As per TSB #2046294/5

All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.

Required Parts and Tools
Model

SD Card

Quantity

Page 4 of 5
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document 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, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

A3, A4, A5, and Q5

8V0906961AL

1 per dealer
(Shop tool)

A3, A4, A5, and Q5

8V0906961AM

1 per dealer
(Shop tool)

Additional Information
The following Technical Service Bulletin will be necessary to complete this procedure:
 TSB 2050565, 91 MIB2 High Scale Software Update Instructions (PR Code 7UH).
 TSB 2047812, 00 SD Creator: how to set up and use the SD Creator for obtaining vehicle software updates via
the MirrorServer.
All part and service references provided in this TSB (2046294) are subject to change and/or removal. Always
check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the
Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
©2020 Audi of America, Inc. All rights reserved. Information contained in this document 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, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these
materials be modified or reposted to other sites without the prior expressed written permission of the publisher.

Page 5 of 5
© 2020 Audi of America, Inc.
All rights reserved. Information contained in this document 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, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.