2024-2025 Audi MMI and Emergency Call System Software Update TSB 2079671/2

This Technical Service Bulletin (TSB) 2079671/2, released on October 24, 2025, addresses software issues affecting the MMI (Multi Media Interface) and connectivity box in specific 2024-2025 Audi vehicles equipped with the MIB3 system (version MLB G1 ST3BP with AED). The primary aim of this update is to resolve various MMI functionality problems and the appearance of an "Emergency call fault" message in the instrument cluster. Owners experiencing an Audi MMI emergency call fault or other infotainment glitches should consult their Audi dealer.

Symptoms and Affected Systems

Owners may notice a range of functionality issues with their MMI system. These problems can manifest across various vehicle functions, impacting the overall user experience. The TSB specifically lists the following as potential complaints:

• Radio operation functionality issues.
• Infotainment system operation with multifunction steering wheel problems.
• Online Services functionality issues.
• Operation, control, and speech input malfunctions.
• Settings functionality problems.
• Screen settings malfunctions.
• Radio, navigation, MMI, and drive device functions not working correctly.
• Navigation mode issues.
• Audio playback and audio settings problems.
• Controlling infotainment with buttons, controls, and screen difficulties.
• Malfunction display symbols, including an "interference display for emergency call service" activating.
• Instrument cluster, displays, and screens exhibiting functionality problems.
• Telematics and online services malfunctions.
• Media playback issues.
• Audio, video, and television functionality problems.
• Telephony functionality issues.
• Telephone operation problems.

The appearance of an Audi MMI emergency call fault message is a critical indicator that this software update may be necessary.

Affected Control Units and Software Versions

This software update targets several key control units within the vehicle's infotainment and connectivity architecture. The TSB identifies specific diagnostic addresses and software versions that are relevant:

• Diagnostic Address 005F - Information electronics 1: Vehicles with existing software versions 4014, 4026, 4318, or 4404 are candidates for this update.
• Diagnostic Address 0075 - Emergency call module: This module is directly involved in the "Emergency call fault" symptom.
• Diagnostic Address 0019 - Gateway: The gateway's hardware version (e.g., H08, H06) determines which SVM code chain is used for the update.
• Diagnostic Address 078E - Android control unit: A manual software update is required for this unit if its software version is below 0621.

Vehicle Identification Details

The TSB applies to specific model years and configurations, primarily focusing on MIB3-equipped vehicles. The production solution for this issue involves new software being implemented in model year 2025 vehicles.

Sales Types (MIB3 MJ24):

Type	MY	Brand	Designation	Engine code	Gearbox code	Final drive code
8W*	2024	A	*	*	*	*
F5*	2024	A	*	*	*	*
FY*	2024	A	*	*	*	*

Sales Types (MIB3 MJ25 VIN-range AED 0619):

Type	MY	Brand	Designation	Engine code	Gearbox code	Final drive code
8W*	2025	A	*	*	*	*
F5*	2025	A	*	*	*	*
FY*	2025	A	*	*	*	*

Sales Types (Q5 MMI sw 4014):

Type	MY	Brand	Designation	Engine code	Gearbox code	Final drive code
FY*	2024	A	*	*	*	*

PR Numbers:

• ? with IU4
• ? without 9M0
• ? without 7Y0
• ? without FK0
• ? without KA0

Chassis Numbers:

Manufacturer	Filler	Type	Filler	MY	Factory	From	To	Prod from	Prod to
WA1	*	FY	*	*	S	000001	031004
WUA	*	F5	*	*	SA	900000	901350
WAU	*	F4	*	*	SA	000001	002665
WAU	*	F4	*	*	SN	000001	001497
WAU	*	F5	*	*	SA	000001	002860

Important Warnings and Owner Advisories

Audi has provided several critical advisories for technicians and, by extension, for owners to be aware of regarding this software update:

• Do Not Invoice Guided Fault Finding: Diagnostic entries in diagnostic address 0075 will be resolved by this software update. Therefore, the Guided Fault Finding test plans should not be carried out and cannot be invoiced for these specific entries.
• Expect Inactive Time: A significant period of inactive time is expected during the software update process. While technicians can work on other vehicles during this time, owners should be prepared for their vehicle to be unavailable for an extended duration.
• No Time Stamps for Warranty Billing: When performing this TSB, time stamps are not required for billing under warranty, indicating a streamlined process for this specific repair.
• ODIS Update Required: Technicians must ensure their diagnostic tester has the latest ODIS update, as a newly developed test program for SVM code input is included in the ODIS software.
• Acoustic and Visual Cues: The vehicle will use acoustic signals and flashing lights to indicate when user input is required during and at the end of the test program.
• Second USB-C Stick for Android Control Unit: A second USB-C stick is required for the software update of the Android control unit (diagnostic address 078E). This update is only performed if the software version in 078E is below 0621.
• Prepare USB-C Sticks in Advance: It is crucial to prepare the necessary USB-C sticks before starting the repair. The update media can be used for multiple vehicles.
• MIB3 Software Update Instructions: This update package includes new software for the MIB3 infotainment system. Further useful information for MIB3 software updates can be found in TSB 2060523, titled "91 MIB3: Software Update Instructions."
• Do Not Use SD Card with Adapter: When preparing the update media, technicians are explicitly instructed not to use an SD card with an adapter USB stick.
• Keep USB Stick Inserted: During the manual update process, it is critical to leave the USB stick inserted until explicitly instructed to remove it later in the procedure.

Diagnosis and Workshop Findings

If a customer reports an Audi MMI emergency call fault or other MMI functionality issues, the workshop will typically find that the vehicle still has one of the older software versions in diagnostic address 5F (Information electronics 1). The specific versions identified as needing an update are 4014, 4026, 4318, and 4404. The technical background for these issues is attributed to software problems within the MIB3 system.

Repair Procedure Summary

The repair involves a multi-step software update process, beginning with a manual update for the Android control unit and followed by an SVM (Software Version Management) code update for other critical modules.

1. Manual Software Update for AED Control Unit (078E):

   • This step is skipped if the Android control unit (078E) already has software version 0621.
   • The update is performed via the red menu in the MMI. A USB update medium (USB-C stick) is inserted into the USB connection.
   • The technician navigates to the "Update" option in the red menu and selects the USB as the source. All control units to be updated (AED) are displayed.
   • After the manual update is complete, the red menu is exited before starting a diagnostic session.
   • The USB stick must remain inserted during this phase. The MMI will restart and must fully initialize, displaying all apps.
   • The system is restarted by pressing and holding the volume control for 10 seconds.
   • The technician opens the notification center and switches to the "Audi connect notifications" tab, waiting several minutes for information to appear. This procedure only works if the USB stick remains inserted.
   • After approximately 5 minutes for the download to complete, the USB stick is removed.
   • The system is restarted again by holding the volume control, and the update success is verified via the notification center.

2. SVM Code Update for Various Control Units:

   • This step updates the AED control unit, emergency call module (0075), gateway (0019), and information electronics (005F).
   • The "SVM – Multiple authorized code inputs" function in "Flash" mode is used.
   • An SVM code chain, which is a long string of characters, must be entered precisely. The TSB recommends scanning a QR code with a hand-held scanner or copying and pasting the chain.
   • Different SVM code chains are required depending on the market and the hardware version of the gateway (0019). The hardware version is determined using SVM code DUCIDENT0019 in diagnostic address 0019.
   • For gateway hardware version H08 in diagnostic address 0019, the SVM code chain is: 078EA001,FLIGHTON0075MLB,ZGDOIP,CL3BPA001US,TGU1MDMVB,CL3BPA002US,FLIGHTOFF0075MLB. A QR code is provided in the TSB for this specific chain.
   • For all other gateway hardware versions (e.g., H06) in diagnostic address 0019, the SVM code chain is: 078EA001,FLIGHTON0075MLB,ZGDOIP,CL3BPA001US,19A027,19B027,TGU1MDMVB,CL3BPA002US,FLIGHTOFF0075MLB. Another QR code is provided for this variant.
   • If the update procedure is interrupted, step 2 must be repeated, as the test program will automatically complete any missing parts of the update.

3. Bus Sleep Mode:

   • After the software update, the vehicle is put into bus sleep mode.
   • The ignition is then switched back on, and the MMI is started.

4. Check Emergency Call LED:

   • The emergency call LED in the roof module is checked to ensure it lights up green. If it does not, technicians are instructed to refer to TSB 2079652, "Emergency call LED in roof module not lit up in green."

5. End Diagnostic Session:

   • The diagnostic session is concluded, and the diagnostic log is sent online.

Required Tools and Parts

Performing this software update requires specific media and tools:

• USB-C Sticks: At least one, and potentially two, USB-C sticks (minimum USB 2.0 with 32 GB capacity) are required. It is crucial not to use an SD card with an adapter USB stick, as this can cause formatting issues.
• AED Control Unit Update Media:

Vehicle type	Part number
All models	8W0906961DQ

• MIB3 Update Media:

Vehicle type	MIB3 SW version	Part number
Audi A4, A5, Q5	4014	8W0906961GC
	4026
	4404
Audi A4, A5, Q5	4318	8W0906961GG

Warranty Information

Audi has provided specific guidelines for warranty claims related to TSB 2079671/2:

• No Time Stamps Required: Time stamps are not necessary for billing under warranty for this TSB.
• Non-Productive Personnel: The update can be performed by non-productive personnel.
• Guided Fault Finding Test Plans: These plans should not be carried out or invoiced for diagnostic entries that are resolved by this TSB.
• Out-of-Warranty Vehicles: If the vehicle is outside of warranty, this Technical Service Bulletin is informational only.

Claim Details:

• Service Number for Emergency Call Function or Online Services Complaints: 9145 (valid for A4, A5, and Q5 models).
• Service Number for MMI Functions Complaints: 9196.
• Damage Code: 0041.

Labor Operations:

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Important Warnings for Owners

This TSB contains several critical warnings that owners should be aware of:

• Do Not Drive the Vehicle if Emergency Call LED is Not Green: If, after the software update, the emergency call LED in the roof module does not light up green, it indicates a potential issue. Owners should not drive the vehicle and should immediately contact their Audi service center. Technicians are instructed to refer to TSB 2079652, "Emergency call LED in roof module not lit up in green," in such cases.
• No Consumer Notification: Audi is not notifying consumers directly about this software update. Owners experiencing MMI issues or an Audi MMI emergency call fault should proactively inquire with their dealership.
• This Update Differs from a Recall: While this is an important software update, it is a Technical Service Bulletin, not a recall. This distinction means the repair may be handled differently under warranty depending on the vehicle's status.

Revision History

The TSB has undergone the following revisions:

Revision	Date	Purpose
2	-	Revised header (Updated PR numbers.)
1	10/14/2025	Initial publication

NHTSA ID: 11025387

NHTSA ID: 11025387