91 MIB3: Navigation permanently initializing/malfunctioning, DTC B126CF0 and/or B126CF1 is stored in
the 005F
91 21 30 2062115/6 September 15, 2021. Supersedes Technical Service Bulletin Group 91 number 21-10 dated
June 23, 2021 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A4, S4, A4
allroad, A5,
A5
Cabriolet,
A5
Sportback,
S5, S5
Cabriolet,
and S5
Sportback

2020 - 2021

All

MIB3 with Navigation

A6, A6
allroad, A6
Avant, S6,
RS 6 Avant,
A7, S7, RS
7, A8, S8,
Q5, SQ5,
Q7, SQ7,
Q8, SQ8,
RS Q8, RS
5, RS 5
Cabriolet,
RS 5
Sportback,
Audi e-tron
quattro, and
Audi e-tron
Sportback

2021

All

MIB3 with Navigation

Condition
REVISION HISTORY
Revision

Date

Purpose

6

-

Revised Service (Updated the formatting instructions)

5

06/23/2021

Revised title (Added DTC)
Revised header (Added new DTC)
Revised Condition (Added new DTC)
Revised Service (Updated NavDB formatting instructions)

Page 1 of 4
© 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

04/08/2021

Revised Service (Updated NavDB formatting instructions)

Customer states:
After an over the air navigation map update:
 The navigation system is permanently initializing.
Or
 The navigation map is corrupt or incomplete.
Workshop findings:
One of the following DTCs may be stored in the information electronics control module, J794 (address word
005F):
 DTC B126CF0 (Navigation system Navigation database malfunctioning).
And/Or
 DTC B126CF1 (Navigation database not available).

Technical Background
An internal reset during an over the air update can cause the navigation database to become corrupted.

Production Solution
Not applicable.

Service
1.

Contact TAC to receive a download link with instructions for the current MIB3 navigation database.

2.

Avoid using IE (Internet Explorer) and download both files from the download link provided by TAC
“download folder” then go to the PC “C drive”.

3.

Find the 32GB USB drive, right-click the USB icon, select format and select “NTFS” (if the drive is formatted
in FAT32, it might not be possible to update the vehicle via the customer update menu).

4.

Formatting the USB drive erases all files on the drive.

5.

Open 7-zip (www.7zip.org if not loaded) and locate the NAV files on the C drive and select both files and
then click the extract icon.

6.

Once the files are extracted open the new folder (Figure 1).

Page 2 of 4
© 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.

Figure 1. Example of how the extracted files appear.
7.

Open the USB drive that was formatted to NTFS and copy the files as seen above directly to the drive (they
CANNOT be in a single folder but just as they are displayed above).

8.

Then eject the USB drive.

9.

In ODIS, under Guided Fault Finding/Guided Functions, select and execute the following test plan: Self test
>> Diagnostic capable system >> 005F - Information Electronics Control Module 1 -J794- (MIB 2+ or MIB 3)
>> 005F - Information Electronics 1, functions / 005F – Basic Setting >> Erase navigation databank.

10. End the diagnostic session and await a vehicle sleep cycle.
11. Insert the USB drive into the vehicle, then go into the MMI settings section; MMI settings >> select system
maintenance >> software update.
12. At this point the software update should be available if the prior steps are performed properly.
Note:
Please keep the USB flash drive with the navigation data as a workshop tool.
It is not required to call into TAC or re-download the navigation data if the USB flash drive has already been
created and is available.
It is not required to keep the vehicle in a service bay or to supervise the update after it has been started.

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

Page 3 of 4
© 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.

Labor Operations:

Reinstall the Navigation Database

9196 9999

20 TU

Diagnostic Time:

GFF

0150 0000

Time stated on
the diagnostic
protocol (Max 15
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 # 2062115/6

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
Tool Number

Tool Description

N/A (locally sourced)

USB Flash Drive, 32GB or larger

Additional Information
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
 TSB 2037809, 91 MIB: MMI navigation map update "How-to guide" - potential customer concerns.
All parts and service references provided in this TSB (2062115) 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.
©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 4 of 4
© 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.