2024-2025 Audi MMI Connectivity and Infotainment TSB

Audi Technical Service Bulletin (TSB) 2079416/4, released on February 17, 2026, provides an essential overview of customer service packages designed for MLB and MQB platform vehicles. This TSB specifically addresses common "infotainment and connectivity complaints" experienced by owners of 2024-2025 Audi models equipped with the MIB3 system, ConBox, OCU3, AED2, and gateway components after UNECE deployment. If you are experiencing "Connection offline" messages or other related issues, this document outlines the diagnostic approach and refers to specific software update TSBs. This TSB is crucial for resolving 2024 Audi Q8 MMI connectivity issues and ensuring proper MMI system functionality.

This TSB serves as a reference point for technicians, guiding them to the appropriate software updates for various control units that may be causing the problem. It's crucial for ensuring that the vehicle's MMI system functions correctly and provides a seamless user experience.

Symptoms and Customer Complaints

Owners may report a range of "infotainment and connectivity complaints." These can manifest as intermittent or persistent problems with the vehicle's multimedia interface, navigation, phone integration, or general internet connection. The primary symptom noted in the TSB is a "Connection offline" message displayed to the user. These complaints indicate a need for a thorough diagnostic review and potential software updates for the MIB3 system components.

Affected Audi Models

This Technical Service Bulletin applies to a wide range of 2024-2025 Audi models built on the MLB and MQB platforms. This includes various A3, A4, A5, A6, A7, A8, Q3, Q5, Q7, Q8, S, RS, and e-tron GT series vehicles. For a complete list of specific models and their applicable years, please refer to the "Also applies to" section on this page, which details the vehicles linked to this document by NHTSA.

Key Control Units for MIB3 System

The TSB identifies several key control units within the MIB3 system that may require software updates to resolve connectivity issues. These control units are integral to the vehicle's infotainment and communication functions:

• 0x005F: Control unit 1 for information electronics, which is a central component for the MMI system.
• 0x0075: Emergency call module and communication unit, vital for safety and remote services.
• 0x0019: Data bus diagnostic interface (gateway), responsible for communication between various vehicle systems.
• 0X078E: Android control unit 2, specifically fitted on vehicles equipped with PR number IU4.

It's important to note that diagnostic address 0X078E (Android control unit 2) is a sub-participant of address 0x005F and therefore may not appear independently in the control unit overview during a diagnostic scan.

Diagnosing Android Control Unit Software

To diagnose potential 2024 Audi Q8 MMI connectivity issues related to the Android control unit, technicians must follow a specific procedure to determine its current software version. This process helps identify if an update is necessary:

1. Access the vehicle's system by entering Flash mode.
2. Utilize the SVM-Authorized Multiple Code Entry function within the diagnostic tool.
3. Enter the specific code DUCIDENT005F into the system.
4. When the system prompts a question about sub-participants, confirm with "yes."
5. Navigate through the system interface to select the sub-participant identified with the system name "Android control unit."
6. Read and record the displayed software version from the Android control unit.

This diagnostic step is crucial for pinpointing whether the Android control unit's software is outdated or contributing to the reported connectivity problems.

Related Service Packages and Software Updates

TSB 2079416/4 acts as an umbrella document, referring to several specific service packages that contain the actual software update instructions for various vehicle platforms and equipment configurations. These updates are designed to resolve the underlying causes of "infotainment and connectivity complaints":

MLB Gen1 Platform (Audi A4, A5, Q5)

• TSB 2079671: Provides a 91 Software update for the MMI and connectivity box in MIB3 vehicles (version MLB G1 ST3BP with AED).
• TSB 2079904: Offers a 91 Software update for the MMI and connectivity box in MIB3 vehicles (version MLB G1 ST3BP without GW + AED).
• TSB 2079813: Details a 91 Software update for the MMI and connectivity box in MIB3 vehicles (version MLB G1 ST3BP without GW without AED).
• TSB 2079670: Contains a 91 Software update for the MMI and connectivity box in MIB3 vehicles (version MLB G1 ST3BP without AED).

MLB Gen2 Platform (Audi A6, A7, A8, Q7, Q8)

• TSB 2079681: Provides a 91 Software update for the MMI and connectivity box in MIB3 vehicles (version MLB G2 ST3BP with AED).
• TSB 2079680: Offers a 91 Software update for the MMI and connectivity box in MIB3 vehicles (version MLB G2 ST3BP without AED).

e-tron GT Platform

• TSB 2079979: Details a 01 MMI software update and connectivity box update for MIB3 vehicles (version MLB e-tron GT ST3BP without AED).
• TSB 2079980: Contains a 01 MMI software update and connectivity box update for MIB3 vehicles (version MLB e-tron GT ST3BP with AED).

MQB Platform (Audi A3, Q3)

• TSB 2081007: Provides a 91 Software update for the MMI, OCU, and gateway in MIB3 vehicles (version MQB ST3BP without AED).

For MQB A3 vehicles with PR number IU4 and software version 0555 at diagnostic address 078E, the corresponding service package is anticipated by the end of Q2/26.

Important Warnings for Owners

Owners should be aware that this TSB (2079416/4) is for reference only. While it identifies potential issues and directs to solutions, the actual repair and billing information will be found in the specific TSBs listed above that detail the software update instructions. Audi explicitly states: "Please do not bill for repairs under this TSB. This TSB is for reference only; billing info can be found in the relevant TSB for the software update instructions." This means that while this document helps identify the problem, the specific repair procedure and any associated warranty claims will be handled under the individual software update TSBs.

Revision History

This TSB has undergone several revisions to ensure accuracy and provide updated information to technicians:

• Revision 4: Revised Service (Updated ETA for MQB).
• Revision 3 (December 11, 2025): Revised Condition, which included the addition of the model table.
• Revision 2 (October 30, 2025): Revised Service, providing an updated service solution.

NHTSA ID: 11029398