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Technical Service Bulletin Transaction No.: 2079980/3
91 MMI software update, connectivity box for MIB3 vehicles (version MLB e-tron GT ST3BP with AED) Release date: Mar 27, 2026
Condition
Software Version
4026
e-tron GT, and RS e-tron GT 2024 All
4014
With 1u4 4404
2025
RS e-tron GT 900000 - 900949 4318
REVISION HISTORY
revision [ote [rurpore
2 | 12/04/2025 | Revised Service (Updated PR and SVM code)
11/17/2028 | Initial publication
Customer states:
There may be problems with various MMI functions or “Emergency call fault’ may be displayed in the instrument cluster.
Workshop findings:
The vehicle still has one of the following software versions in diagnostic address 5F: 4014, 4026, 4318, 4404.
Adifferent TSB may have instructed you to refer to this TSB in the context of a software update for multiple control units,
Technical Background
Software issues.
Production Solution
The new software for the affected control units was implemented in production in model year 2025.
Service
Important information before updating the software
+ Diagnostic entries logged in diagnostic address 0075 will be repaired by a software update described in this TSB. The Guided Fault Finding test
plans should not be carried out and cannot be invoiced
+ Alengthy period of inactive time is to be expected during the software update. You can work on a different vehicle during this time. This is considered
in the warranty accounting instructions.
Oven carrying out this TSB, time stamps are not required for billing under warranty.
+ Anewly developed test program is used to input the SVM code. Please ensure that the tester being used has the latest ODIS update. The new test
program for software updates is included in ODIS software
+ Note: The vehicle uses acoustic signals and flashing lights to indicate when user input is required during and at the end of the test program.
+ Asecond USB-C stick is required for the software update for the Android control unit (see parts information for part number). This update must only
be performed if the software version in diagnostic address 078E is below 0621.
+ Important: Please prepare the required USB-C sticks (see parts information) before starting the repair. The update media can be used for multiple
vehicles.
+ This update package also includes new software for the MIB infotainment system. Useful information for MIB software updates can be found in
TSB 2060523, 91 MIB3: Software Update Instructions.
Repair procedure

1. Manual software update for AED control unit (078E) via red menu
Please skip step 1 if the Android control unit (078E) already has software version 0621
The AED control unit can only be updated via the red menu in the MMI.
Insert the USB update medium in the USB connection (see parts information for part number).
Select the red menu by pressing the following buttons:
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Select “Update” and the source in which you have inserted the update medium (USB connection). Use the volume control to do this. All control units to be
updated (AED) are shown; scroll all the way down and start the update.
Once the manual update has been successfully completed, leave the red menu entirely before starting a diagnostic session.
The MMI will now restart.
Wait until the MMI has fully initialized. The home screen must be complete and display all apps.
Please restart the system by pressing and holding the volume control for 10 seconds.
Open the notification center and switch to the “Audi connect notifications” tab.
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QA Benachrichtigungen &@. Connect Benachrichtigungen
Keine Benachrichtigungen
It may take several minutes for further information to appear. Please wait.
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82 OTA Updater Service
Software Update
Software Update 0621 (814MB) wird heruntergeladen
Please note: This procedure will only work if the USB stick is still inserted.

Please wait (approx. 5 min.) until the download is complete.
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OTA Updater Service
Software Update
Download des Software Update beendet.
Ein Neustart ist erforderlich
Please restart the system by pressing and holding the volume control.
Check whether the update was successful by calling up the notification center / Audi connect notifications.
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QA Benachrichtigungen &@. Connect Benachrichtigungen
OTA Updater Service
Software Update
Gratulation! Software 0621 wurde erfolgreich installiert
Vielen Dank!
2. SVM code for AED control unit, software update for emergency call module (0075), gateway (0019) and information electronics (005F)
Use the function “SVM - Authorized Multiple Code Entry” in “Flash” mode.
For the new software update program, the following SVM code must be entered exactly, including commas and without spaces
(recommendation: scan QR code with hand-held scanner or copy and paste the SVM code chain).
Different SVM code chains / QR codes are required depending on the market and the software version of the gateway (0019).
Determine the software version in diagnostic address 0019 using SVM code in the function “SVM — Authorized Multiple Code Entry”
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You must then use the appropriate SVM code chain for the determined software version in the function “SVM — Authorized Multiple Code Entry”.

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All other software versions in diagnostic address 0019
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The test program initially prompts you to use a USB medium (see parts information for part number)
The USB-C stick can be removed after completing the program
Note: If the procedure has been interrupted, please repeat step 2. The test program will then automatically perform the missing part of the update.
3. Bus sleep mode
Put the vehicle in bus sleep mode after performing the software update.
Then switch the ignition back on and start the MMI.
4, Check emergency call LED
Check whether the emergency call LED in the roof module lights up in green again
If the LED does not turn green, please refer to TSB 2079652 Emergency call LED in roof module not lit up in green
5. End diagnostic session and send off diagnostic log online.
Warranty
Claim Type: + Ifthe vehicle is outside of any warranty, this Technical Service Bulletin is informational only.

Service Number: Complaints about emergency call function or online services
Service number: 9145
Complaints about MMI functions
Service number: 9196
Damage Code: 0041
Labor Operations: Prepare repair 0151 0010 20TU
- Vehicle parked
- Charge 12 V battery
AED update (manual) 0151 0040 100 TU
(value in brackets applies if step 1 was skipped) (60 TU)
Launch software update for MMI and emergency call module
- Connect tester, start ODIS
- Flash mode
- Function Authorized Multiple Code Entry
- Copy/paste the code chain ==> Start
- Insert the USB stick
- Program runs automatically (service technician is not required)
Conclude software update
- End the current test program
- Remove the USB stick
- Bus sleep cycle
- Check emergency call LED
- Quit the diagnostic session
- Disconnect charger
Claim Comment: As per TSB 2079980/3
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.
When carrying out this TSB, time stamps are not required for billing under warranty.
You are therefore permitted to work on other vehicles at the same time. The update can also be performed by non-productive personnel
The Guided Fault Finding test plans should not be carried out for diagnostic entries that are repaired by performing this TSB and cannot be invoiced.
Required Parts and Tools
The following applies when creating the update media:
Please prepare the 2 required USB-C sticks before starting the repair.
You must not use an SD card with an adapter USB stick.
The USB-C stick and downloading the software via the FMC cannot be invoiced.
General information on USB-C sticks for software updates can also be found in TSB 2060523 91 MIB3: Software Update Instructions.
AED control unit update media:
8Ww0906961DQ
MIB3 update media:
Download the software with the corresponding part number onto a USB-C stick (USB 2.0, 32 GB)
Please do not use a USB-C stick with a larger storage capacity as such USB sticks have a different formatting process.