91 MIB2 High: Phone/Audi connect telephone and online services do not work
91 21 94 2051613/3 April 29, 2021. Supersedes Technical Service Bulletin Group 91 number 18-08 dated August
24, 2018 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A6, A7, TT,
and R8

2015 - 2019

All

MIB2

A4, Q7

2017

All

MIB2

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised header (Updated models and model years)
Revised Service (Added Step 4 and table)
Revised Required Parts and Tools (New SVM codes and SD Part numbers)

2

08/24/2018

Revised header (Updated models)

1

07/06/2018

Initial publication

Customer states:
 The customer states that a phone call is not possible or no online services are available.
Workshop findings:
 The message "Please
wait …" is permanently
shown in the phone
menu. Therefore a
mobile device cannot be
used in the hands-free
Bluetooth mode. This
message is still shown
after the vehicle sleep
cycle.

Figure 1. Message shown permanently in phone menu.

Page 1 of 11
© 2021 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.

Technical Background
The phone module is not initialized and therefore is not recognized in the infotainment control module.

Production Solution
Not applicable.

Service
Before starting the repair:
Note:
This procedure is only applicable to vehicles that require a customer SIM card. It does not apply to vehicles with
eSIM.
 Check the SIM card reader with a flashlight and magnifying glass or photo for broken or damaged pins. If the
card reader is damaged, replace the main unit.
 Remove the fuse for the information electronics control module for at least 30 minutes. If the fault is still
permanently present, continue with the TSB. Otherwise, the issue has been resolved.
 Review the Required Parts and Tools section of this bulletin.
 Obtain the telephone module retrofit kit listed in the Required Parts and Tools section of this bulletin (if
required).
 Obtain the software matching the customer’s vehicle according to the Required Parts and Tools section of
this bulletin.
Replace the phone module:
Note:
Verify that the VAS6613 ESD work surface contains three grounding straps. The repair cannot be completed
without all three grounding straps and the ESD mat.
Note:
This exchange of the telephone module should only be performed in a clean environment due to sensitive
electronics. The repair should not be performed in a workshop environment.

Page 2 of 11
© 2021 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.

1. Remove the MIB main unit from the vehicle according to the instructions in Elsa at Repair Manual, Electrical
System >> Communication >> 91 Communication >> Infotainment System >> Information Electronics
Control Module 1 J794, Removing and Installing.
2. Prepare the ESD work surface by cleaning the work area of all loose debris and then drying the area with a
towel. Doing so ensures that no debris will be rolled into the mat when it is rolled up after use, which could
cause long-term damage to the ESD work surface.
3. Place the ESD anti-static mat onto the surface. Ensure that all three grounding straps are securely strapped
to the ESD mat.
4. Ground the ESD mat by plugging the 110V
grounding strap into a wall socket or power
strip (Figure 2). If a power strip is used, it must
be plugged into a grounded wall outlet (see
attached user instructions for VAS6613 titled
“VAS6613 ESD Workspace Guide.pdf”).

Figure 2. VAS6613 ESD work surface grounding plug.

Page 3 of 11
© 2021 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.

5. Ground yourself by placing the elastic strap
around your wrist. Make sure it is securely
touching your skin. It cannot be loose-fitting or
over your shirt cuff (Figure 3).

Figure 3. VAS6613 ESD work surface grounding wrist strap.
6. Ground the MIB main unit by placing an
alligator clip on the back, ensuring that it
makes contact with the metal housing of the
main unit. The most secure location is at the
bottom of the metal bracket (Figure 4).

Figure 4. VAS6613 ESD work surface grounding device
clip.

Warning:
Your wrist, the ESD mat, and the main unit must remain grounded during the entire process.

7. Start by touching the screw driver to the ESD mat to discharge any static that may be built up in the tool.

Page 4 of 11
© 2021 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.

8. Break the white warranty seal on the
back of the main unit (Figure 5).

Figure 5. Break the white warranty seal.

9.

On the top of the main unit,
remove the two retaining
screws that hold the telephone
module in place (Figure 6).

Figure 6. Telephone module retaining screws indicated by the red arrow.

Page 5 of 11
© 2021 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.

10. Carefully lift up the telephone
module, using both ends as
points of contact when pulling
up. Use a flathead screwdriver
to lift the forward flange
(Figure 7). The module is held
in place with a computer
socket-type attachment and
will release when enough force
is used.

Figure 7. Lift up on both ends of the telephone module.
11. Place the new telephone
module into the socket, making
sure it is level before snapping
it into place. Use both ends of
the telephone module when
pressing it into place. Do not
press down using the purple
FAKRA connector (Figure 9).

Figure 8. Do not press down using the purple FAKRA connector.
12. Re-secure the telephone module retaining screws into the top of the MIB main unit.

Page 6 of 11
© 2021 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.

13. Place the new warranty seal
from the retrofit kit over the
original warranty seal (Figure
9).

Figure 9. Place the new warranty seal over the location indicated by the
yellow arrow.
14. Reinstall the MIB main unit in the vehicle and proceed to Software updates.

Software updates (required for all repairs):
1. Turn the vehicle ignition on. When the system is fully initialized, perform TSB 2047576: 91 MIB2 Software
Update Instructions to update the ZUG software using the required software update SD card and software
code listed in the Required Parts and Tools section of this bulletin.
Tip: Ensure that the SVM portion of the update is completed successfully without errors. If any issues
arise with SVM, then contact TAC.
2. Turn the vehicle ignition on and allow the MIB main unit to fully initialize. It may take up to three minutes for
the main unit to fully initialize due to the hardware replacement. All options will be white in the Telephone
menu of the MIB when the system has fully initialized.
3. Perform a quick verification test to ensure that all functions of the MMI are operating correctly:
 Place the customer’s SIM card into the SIM card slot (if applicable). Ensure that LTE reception is
obtained.
 Check that Bluetooth pairing is working.
 Check AM/FM/SAT radio operation outside the shop.
 Check that Navigation is receiving more four or more satellites (Navigation >> Route then scroll up to top,
then Select and scroll up to top again to obtain the number of satellites being received).

Page 7 of 11
© 2021 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.

4. Repeat for 2nd Software update, if applicable.

Update

Vehicle

1

A4 & Q7
(Built
Before
CW22/16)

4M0906961CP

MHI2US2162

A4 & Q7
(Built
Before
CW22/16)

4M0906961DK

91U7C027

R8 (Built
Before
CW22/16)

4M0906961CK

MHI2US2588R8

R8 (Built
Before
CW22/16)

4M0906961DK

91U7C027

R8 (Built
On/After
CW22/16)

4M0906961BS

MHI2ER5099R8

R8 (Built
On/After
CW22/16)

4M0906961EL

MHI2US518

A6/A7
(Built
On/After
CW22/16)

4M0906961DK

91U7C027

A6/A7
(Built
On/After
CW22/16)

4M0906961DC

MHI2US3341

TT (Built
Before
CW22/16)

4M0906961DK

91U7C027

2

1

2

1

2

1

2

1

SD Creator Part number

SVM code

Page 8 of 11
© 2021 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.

1

TT (Built
On/After
CW22/16)

4M0906961EK

MHI2US518

Warranty
Claim Type:

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

Service Number:

9196

Damage Code:

0040

Labor Operations:

All models:
Software Update

0151 0000

According to TSB
#2047576

9196 1900

50 TU

ECM information display control head remove +
reinstall

9196 1900

30 TU

GFF

No allowance

0 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

0 TU

A6 and A7:
ECM information display control head remove +
reinstall
TT:

Diagnostic Time:

Claim Comment:

As per TSB #2051613/3

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.

Page 9 of 11
© 2021 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.

Required Parts and Tools
Always check with your Parts Department and/or ETKA for the latest information and parts bulletins.
Part Number

Part Description

Quantity

8W0898407A

MIB2 Telephone Module Retrofit Kit

01

VAS6613

ESD work surface

01

T10057

Radio removal tools

01

T40056A

Torx T8 screwdriver

01

A4 & Q7 (Built Before CW22/16):

Use SD Creator Program to download software
to SD Card (TWO UPDATES REQUIRED)

01

Use SD Creator Program to download software
to SD Card (TWO UPDATES REQUIRED)

01

Use SD Creator Program to download software
to SD Card (TWO UPDATES REQUIRED)

01

Use SD Creator Program to download software
to SD Card

01

UPDATE 1:
SD P/N: 4M0906961CP
SVM Code: MHI2US2162
UPDATE 2:
SD P/N: 4M0906961DK
SVM Code: 91U7C027
R8 (Built Before CW22/16):
UPDATE 1:
SD P/N: 4M0906961CK
SVM Code: MHI2US2588R8
UPDATE 2:
SD P/N: 4M0906961DK
SVM Code: 91U7C027
R8 (Built On/After CW22/16):
UPDATE 1:
SD P/N: 4M0906961BS
SVM Code: MHI2ER5099R8
UPDATE 2:
SD P/N: 4M0906961EL
SVM Code: MHI2US518
A6/A7 (Built Before CW22/16):
SD P/N: 4M0906961DK

Page 10 of 11
© 2021 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.

SVM Code: 91U7C027
A6/A7 (Built On/After CW22/16):
SD P/N: 4M0906961DC
SVM Code: MHI2US3341
TT (Built Before CW22/16):
SD P/N: 4M0906961DK

Use SD Creator Program to download software
to SD Card

01

Fasteners, Bolts, Nuts and Screws as needed
per the Repair Manual

See ETKA/ELSA

SVM Code: 91U7C027
TT (Built On/After CW22/16):
SD P/N: 4M0906961EK
SVM Code: MHI2US518
See ETKA

Additional Information
The following Technical Service Bulletin will be necessary to complete this procedure:
 TSB 2047576, 91 MIB2 Software Update Instructions.
 TSB 2011732, 00 Software Version Management (SVM), operating instructions.
All part and service references provided in this TSB (2051613) are subject to change and/or removal.
©2021 Audi of America, Inc. All rights reserved. The 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 11 of 11
© 2021 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.