2024-2025 Audi MIB3 MMI Software Update TSB 2079670/3

Introduction to Audi TSB 2079670/3

Audi has released Technical Service Bulletin (TSB) 2079670/3 to address various software-related issues affecting the Multi Media Interface (MMI) and connectivity box in specific 2024-2025 Audi models equipped with the MIB3 infotainment system. This bulletin outlines a crucial software update designed to enhance the functionality and reliability of these systems.

The update targets vehicles such as the 2024-2025 Audi A4, A5, Q5, S4, S5, RS5, and SQ5, aiming to resolve customer complaints related to MMI performance and specific warning messages. Owners experiencing problems with their infotainment system, including an "Emergency call fault" message, should be aware of this important service action. This TSB ensures that the 2024 Audi A5 MMI software update, along with updates for other models, is performed correctly.

Symptoms of MMI and Connectivity Box Issues

Owners of affected Audi vehicles may notice a range of symptoms indicating a need for this software update. The primary concerns reported include various problems with MMI functions, which can manifest as unresponsive controls, navigation glitches, or general system instability. These issues can significantly detract from the driving experience and the utility of the vehicle's advanced features.

Another critical symptom is the display of an "Emergency call fault" message in the instrument cluster. This warning indicates a potential malfunction in the vehicle's emergency call system, which is a vital safety feature. Additionally, the bulletin header mentions a "Connection offline" status, suggesting connectivity problems that could impact various online services and MMI functionalities.

Affected Software Versions

This software update specifically targets vehicles that currently have certain older software versions installed in diagnostic address 5F, which corresponds to the information electronics control unit. The identified software versions that necessitate this update include 4014, 4026, 4318, and 4404. If a vehicle's diagnostic system reports any of these versions, it is a strong indicator that the software update outlined in TSB 2079670/3 is required.

Technical Background of the Issue

The root cause of the MMI and connectivity box problems, including the "Emergency call fault," has been identified as software-related. These software issues affect the various control units responsible for the infotainment and communication systems within the vehicle. Audi has since implemented new, corrected software for these affected control units in production vehicles, but existing vehicles may still require the update.

Important Warnings for Owners and Technicians

Audi has provided several key warnings and instructions within TSB 2079670/3 to ensure the update process is handled correctly and to inform owners and technicians about specific conditions:

• Diagnostic Entries: "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." This means that for issues resolved by this TSB, specific diagnostic test plans should be bypassed to avoid unnecessary charges.
• Inactive Periods: "There will be extended inactive periods for some of the steps. You can work on a different vehicle during this time." Technicians should be aware that the update process can take a significant amount of time during which the vehicle is unusable.
• Warranty Billing: "When carrying out this TSB, time stamps are not required for billing under warranty." This simplifies the warranty claim process for this specific service.
• USB-C Stick Preparation: "Please prepare the required USB-C sticks (see parts information) before starting the repair." Proper preparation of the update media is crucial for a successful update.
• Media Type Restriction: "You must not use an SD card with an adapter USB stick." This explicit warning prevents potential issues that could arise from using incompatible storage media for the software update.
• Invoicing for Media Download: "The USB-C stick and downloading the software via FMC cannot be invoiced." This clarifies what can and cannot be charged under warranty for the update media.
• Guided Fault Finding: "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." This reiterates the importance of following the TSB's specific repair procedure over general diagnostic steps for covered issues.

Repair Procedure Summary

The repair procedure detailed in TSB 2079670/3 involves a comprehensive software update for several key control units. This process ensures that the 2024 Audi A5 MMI software update, along with updates for other models, is applied systematically.

1. Software Update Scope: The update targets the emergency call module (diagnostic address 0075), the gateway control unit (diagnostic address 0019), and the information electronics module (diagnostic address 005F). This multi-module approach ensures all interconnected systems are brought up to the latest software standard.
2. Flash Mode Activation: Technicians must initiate the update using the "SVM - Authorized Multiple Code Entry" function within the diagnostic system's flash mode. This specialized entry method is essential for correctly applying the software package.
3. Hardware Version Identification: A critical preliminary step involves accurately determining the hardware version of the vehicle's diagnostic address 0019. This is achieved by inputting the specific SVM code DUCIDENT0019. This identification is vital to ensure that the appropriate software variant is selected for the vehicle's specific configuration.
4. SVM Code Chain Entry: Following hardware identification, the correct SVM code chain must be entered into the diagnostic system. The TSB provides these codes, including convenient QR codes for scanning or direct copy-pasting, emphasizing the necessity for exact input without any alterations or spaces. This action triggers the commencement of the software update process.
5. USB-C Media Requirement: The update process mandates the use of a USB-C stick, which serves as the medium for transferring the software files to the vehicle. This USB-C stick must have a minimum storage capacity of 32 GB and support USB 2.0. The bulletin explicitly cautions against using an SD card with an adapter USB stick, as this can lead to compatibility issues and update failures. General information regarding USB-C sticks for software updates can also be found in TSB 2060523.
6. Automated Program Execution: Once the USB-C stick is connected and the process is initiated, the software update program runs automatically. During this period, the system will execute various update routines, which may involve extended inactive times. These inactive periods are factored into warranty accounting instructions, allowing technicians to manage their time efficiently.
7. Bus Sleep Mode and MMI Restart: After the software update is completed, the vehicle must be put into bus sleep mode. This step allows the newly installed software to properly integrate with the vehicle's systems. Following bus sleep, the ignition is switched back on, and the MMI system is restarted to finalize the update sequence.
8. Emergency Call LED Verification: A crucial post-update check involves verifying the status of the emergency call LED located in the roof module. The LED should illuminate green, confirming the successful operation of the emergency call system. If the LED does not turn green, technicians are instructed to refer to TSB 2079652 for further diagnostic steps.
9. Diagnostic Session Conclusion: The final step of the procedure requires ending the diagnostic session and uploading the diagnostic log online. This ensures that the service record is properly updated and the completion of the TSB is documented.

Required Tools and Parts

To perform the software update outlined in TSB 2079670/3, specific tools and parts are necessary:

• USB-C Sticks: Technicians must prepare USB-C sticks with a minimum capacity of 32 GB and USB 2.0 compatibility. These are essential for transferring the update software to the vehicle. The bulletin specifies that an SD card with an adapter USB stick must not be used.
• ODIS Software: The diagnostic tester used must have the latest version of ODIS (Offboard Diagnostic Information System) software installed. This software includes the necessary test programs for the update.
• Software Part Numbers: The specific software part numbers for the MIB3 update media are 8W0906961GC and 8W0906961GG, depending on the vehicle configuration. These part numbers correspond to the software versions 4014, 4026, 4404, and 4318 for various Audi A4, A5, and Q5 models.

Warranty Information

For warranty claims related to TSB 2079670/3, Audi provides specific guidelines:

• Claim Type: If the vehicle is outside of its warranty period, this Technical Service Bulletin is considered informational only.
• Service Numbers: For complaints regarding emergency call function or online services, use service number 9145. For complaints concerning MMI functions, use service number 9196.
• Damage Code: The applicable damage code for this service is 0041.
• Labor Operations: The labor operations are categorized as 0151 0010 for preparing the repair (20 Technical Units or TU) and 0151 0040 for launching and concluding the software update for the MMI and emergency call module (60 TU).
• Claim Comment: All warranty claims must include the comment "As per TSB 2079670/3" to ensure proper processing.

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review or audit by Audi Warranty.

NHTSA Source Citation

NHTSA ID: 11026230