2024-2025 Audi MMI & Connectivity Box Software Update TSB 2079670/1

Audi has issued Technical Service Bulletin (TSB) 2079670/1 to address software-related concerns affecting the MMI (Multi Media Interface) and connectivity box in certain 2024-2025 MIB3 vehicles. This TSB provides a comprehensive software update designed to resolve various functional issues within the infotainment system and prevent the display of an "Emergency call fault" message.

This 2024 Audi MMI software update is crucial for maintaining optimal performance and safety features in affected vehicles. It targets specific software versions that have been identified as problematic, ensuring that owners experience reliable operation of their vehicle's advanced technological systems.

Symptoms

Owners of affected 2024-2025 Audi MIB3 vehicles may notice a range of issues related to their infotainment and connectivity systems. The primary symptoms include general problems with various MMI functions and the potential display of an "Emergency call fault" message in the instrument cluster. These functional problems can manifest in several areas, including:

• Infotainment system operation with the multifunction steering wheel
• Issues with the instrument cluster, displays, and screens
• Malfunctions during telephone operation or media playback
• Problems with radio, navigation, MMI, and drive device functions
• Interference with Telematics and online services
• Difficulties with operation, control, and speech input
• Malfunction display symbols, specifically an "interference display for emergency call service activates"
• Problems with screen settings or general settings
• Audio playback and audio settings issues
• Telephony and radio operation malfunctions
• Issues with audio, video, and television functions
• Problems with Online Services and navigation mode
• Difficulties controlling infotainment with buttons, controls, or the screen

Workshop findings indicate that vehicles exhibiting these symptoms typically have one of the following software versions in diagnostic address 5F (Information electronics): 4014, 4026, 4318, or 4404. The presence of these specific software versions confirms the need for the 2024 Audi MMI software update.

Important Warnings and Owner Advisories

Owners and technicians should be aware of several critical points regarding this TSB and the software update process:

• Do not carry out Guided Fault Finding: Diagnostic entries logged in diagnostic address 0075 will be repaired by this software update. Therefore, the Guided Fault Finding test plans should not be carried out and cannot be invoiced under warranty.
• Warranty Billing: When carrying out this TSB, time stamps are not required for billing under warranty. This allows technicians to work on other vehicles during the extended inactive periods of the software update.
• USB-C Stick Requirements: Please prepare the required USB-C sticks (minimum USB 2.0 with 32 GB capacity) before starting the repair. The update media can be used for multiple vehicles. It is critical to note: "You must not use an SD card with an adapter USB stick." Also, "Please do not use a USB-C stick with a larger storage capacity as such USB sticks have a different formatting process."
• Invoicing Restrictions: "The USB-C stick and downloading the software via FMC cannot be invoiced."
• User Input Notifications: The vehicle uses acoustic signals and flashing lights to indicate when user input is required during and at the end of the test program.
• Interrupted Procedure: "If the procedure has been interrupted, please repeat step 1. The test program will then automatically perform the missing part of the update."
• Emergency Call LED Check: After the update, check whether the emergency call LED in the roof module lights up green. If the LED does not turn green, technicians should refer to TSB 2079652, titled "Emergency call LED in roof module not lit up in green," for further diagnosis and resolution.

Diagnosis and Trigger Conditions

The primary trigger for this TSB is the customer experiencing any of the MMI or connectivity issues described above, particularly the "Emergency call fault" message. Technicians will confirm the need for the software update by checking the software version in diagnostic address 5F (Information electronics). If the vehicle has software version 4014, 4026, 4318, or 4404, it is a candidate for this 2024 Audi MMI software update.

Repair Procedure Summary

The repair involves a comprehensive software update for the emergency call module (diagnostic address 0075), gateway (diagnostic address 0019), and information electronics (diagnostic address 005F). The procedure is performed using the ODIS diagnostic system and a prepared USB-C stick.

1. Vehicle Preparation:

   • Park the vehicle securely.
   • Ensure the 12V battery is fully charged.
   • Prepare the required USB-C sticks with the correct software image.

2. Determine Hardware Version:

   • Connect the ODIS diagnostic tester with the latest updates.
   • Determine the hardware version in diagnostic address 0019 using the SVM code DUCIDENT0019 within the "SVM – Authorized Multiple Code Entry" function.

3. Apply Appropriate SVM Code Chain:

   • Based on the determined hardware version in diagnostic address 0019, select the correct SVM code chain:
     • If hardware version is H08: Use FLIGHTON0075MLB,ZGDOIP,CL3BPA001US,TGU1MDMVB,CL3BPA002US,FLIGHTOFF0075MLB.
     • For all other hardware versions: Use FLIGHTON0075MLB,ZGDOIP,CL3BPA001US,19A027,19B027,TGU1MDMVB,CL3BPA002US,FLIGHTOFF0075MLB.

4. Execute Software Update:

   • Initiate flash mode within the ODIS tester.
   • Copy and paste the selected SVM code chain into the appropriate field.
   • Insert the prepared USB-C stick into the vehicle's USB-C port.
   • The software update program will run automatically. Technicians are not required to monitor the process continuously, as the program handles the update autonomously.

5. Post-Update Checks and Finalization:

   • After the software update is complete, put the vehicle into bus sleep mode.
   • Switch the ignition back on and start the MMI system.
   • Verify that the emergency call LED in the roof module lights up green.
   • End the diagnostic session and send the diagnostic log online.
   • Disconnect the charger.
   • The USB-C stick can be removed after completing the program.

Required Tools and Parts

To perform this software update, specific tools and parts are necessary:

• USB-C Sticks: Required USB-C sticks (minimum USB 2.0 with 32 GB capacity). General information on USB-C sticks for software updates can be found in TSB 2060523, "91 MIB3: Software Update Instructions."
• ODIS Diagnostic Tester: A diagnostic tester with the latest ODIS update is required to input the SVM code and manage the update process.
• Software Part Numbers: The software for the MIB3 update corresponds to specific part numbers based on the current software version in diagnostic address 5F:

Vehicle Type	MIB3 SW Version	Part Number
Audi A4, A5, Q5	4014, 4026, 4404	8W0906961GC
Audi A4, A5, Q5	4318	8W0906961GG

Warranty Information

This Technical Service Bulletin (TSB 2079670/1) is informational only if the vehicle is outside of its warranty period. For in-warranty repairs, specific service and damage codes apply:

• Claim Type: If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only.
• Service Number for emergency call function or online services: 9145 (applicable for Audi A4, A5, and Q5 vehicle models).
• Service number/damage code for MMI functions: 9196 / 0041.
• Claim Comment: As per TSB 2079670/1.

When carrying out this TSB, time stamps are not required for billing under warranty. This allows technicians to work on other vehicles during the extended inactive periods of the software update. The update can also be performed by non-productive personnel. The labor operations are categorized as follows:

Labor Operation	Description	Time Units (TU)
0151 0010	Prepare repair (Vehicle parked, Charge 12 V battery)	20
0151 0040	Launch software update for MMI and emergency call module (Connect tester, start ODIS, Flash mode, Function Authorized Multiple Code Entry, Copy/paste code chain, Insert USB stick, Program runs automatically, Conclude software update, End current test program, Remove USB stick, Bus sleep cycle)	60

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

Owner Action

If you own a 2024-2025 Audi MIB3 vehicle and are experiencing any of the described MMI function problems or see an "Emergency call fault" message, it is recommended to contact your authorized Audi dealership. Inform them about the symptoms you are experiencing and mention Technical Service Bulletin 2079670/1. The dealership will be able to diagnose your vehicle's current software version and perform the necessary 2024 Audi MMI software update to resolve these issues.

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Source: NHTSA ID 11025294