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Technical Service Bulletin Transaction No.: 2079671/4
91 Software update for MMI, connectivity box for MIB3 vehicles (version MLB G1 ST3BP with AED) Release date: Mar 27, 2026
Condition
MIB3 with AED
Diagnostic Address 005F
A4, Ad allroad, $4, A5, A5 Cabriolet, AS
Sportback, S5, S5 Cabriolet, S5 Sportback, 2024 Al Software Version:
RS 5, RS 5 Sportback, Q5, Q5 e quattro, Q5 4014
Sportback, SQ5, and SQS Sport back
4026
4044
000000 - 001497
Neckarsulm
A4, S4, and A4 allroad 2025
000000 - 002665
Ingolstadt MIB3 with AED 0621
000000 — 002860 Diagnostic Address 005F
AS Sportback, and S5 Sportback 2025 Ingo'stadt Software Version:
4318
000000 - 901350
RS 5 Sportback 2025
Ingolstadt
Q5, Q5 e quattro, Q5 Sportback, SQ5, and
S05 Sportback 2025 000000 - 031004
REVISION HISTORY
revision [ote [rurpone
3 Revised header (Updated SW filter)
Revised Condition (Added model table)
Revised Service (updated SVM code)
10/24/2025 | Revised header (Updated PR numbers)
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

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8 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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8 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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8 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), and if necessary, for gateway (0019) and information
electronics (005F)
Use the function “SVM — Multiple authorized code inputs’ 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 hardware version of the gateway (0019).

Determine the hardware version in diagnostic address 0019 using SVM code DUCIDENT0019 in the function “SVM — Authorized Multiple Code Entry”
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You must then use the appropriate SVM code chain for the determined hardware version in the function “SVM - Authorized Multiple Code Entry”.
Hardware version in diagnostic address 0019 = HO8
. DUCDTCPRO075MLB,078EA001,FLIGHTON0075MLB,ZGDOIP,CL3BPA001US, TGU1MDMVB,CL3BPA002US,FLIGHTOFF0075MLB
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Only HO08 in 0019
All other hardware versions (e.g. H06) in diagnostic address 0019
DUCDTCPRO075MLB,078EA001,FLIGHTON0075MLB,ZGDOIP,CL3BPA001US, 19A027,19B027,TGU1MDMVB,CL3BPA002US,FLIGHTOFF0075MLB-
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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
The following is valid for A4, AS and Q5 vehicle models: 9145
Complaints about MMI functions
Service number/damage code: 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
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 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:

All models 8W0906961DQ
MIB3 update media:
Download the software with the corresponding part number onto a USB-C stick (min. USB 2.0 with 32 GB).
Please do not use a USB-C stick with a larger storage capacity as this type of USB stick has a different formatting process.
Audi A4,A5,Q5 4014 8W0906961GC

4026

4404
Audi A4,A5,Q5 | 4318 8W0906961GG
Additional Information
All part and service references provided in this TSB (2079671) 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.
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