2024 Audi A5 MMI & Emergency Call System Software Update TSB

Symptoms

Owners of affected 2024 Audi A5 vehicles may experience various problems with MMI functions. Additionally, an “Emergency call fault” message might appear in the instrument cluster. These issues stem from software problems within the MIB3 infotainment system and connectivity box, specifically impacting models with the MLB G1 ST3BP version without a gateway (GW) or Acoustic Emergency Call Device (AED).

Specific MMI functionalities that could be affected include:

• Online Services
• Radio operation
• Telematics and online services
• Infotainment system operation with the multifunction steering wheel
• Settings
• Malfunction display symbols, including an “interference display for emergency call service activates”
• Navigation mode
• Telephony
• Audio playback and audio settings
• Operation, control, and speech input
• Audio, video, and television functions
• Radio, navigation, MMI, and drive device functions
• Screen settings
• Media playback
• Telephone operation
• Instrument cluster displays and screens
• Controlling infotainment with buttons, controls, and screen

Diagnosis and Trigger Conditions

Technicians can identify affected vehicles by checking the software version in diagnostic address 005F, which corresponds to the information electronics control unit. If the vehicle is running one of the following software versions, it requires the update detailed in TSB 2079813/1:

• 4014
• 4026
• 4318
• 4404

This Audi A5 MMI software update is designed to address these specific software-related concerns by updating the MMI and connectivity box for MIB3 vehicles.

Important Warnings for Owners and Technicians

Audi has provided several critical advisories regarding this software update:

• Do not perform Guided Fault Finding: Diagnostic entries logged 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 under warranty.
• USB-C stick requirements: When preparing the update media, use a USB-C stick with a minimum capacity of 32 GB (USB 2.0). Do not use a USB-C stick with a larger storage capacity as these may have a different formatting process that prevents proper function.
• Avoid SD card adapters: You must not use an SD card with an adapter USB stick for this update.
• Non-invoicable items: The USB-C stick itself and the process of downloading the software via the FMC (Flash Memory Card) cannot be invoiced.
• Interrupted procedure: If the software update procedure is interrupted, step 1 must be repeated. The test program is designed to automatically perform any missing parts of the update.
• Extended inactive periods: There will be extended inactive periods during some steps of the update. Technicians are advised that they can work on a different vehicle during this time, and this is accounted for in warranty instructions.
• Warranty billing: When carrying out this TSB, time stamps are not required for billing under warranty.
• New test program: A newly developed test program is used to input the SVM code. Technicians must ensure their ODIS diagnostic system has the latest updates, as the new test program for software updates is included in ODIS software.
• User input indicators: The vehicle uses acoustic signals and flashing lights to indicate when user input is required during and at the end of the test program.

Repair Procedure Summary

The repair outlined in TSB 2079813/1 involves a comprehensive software update for the emergency call module (0075) and information electronics (005F) in MIB3 vehicles. This Audi A5 MMI software update requires specialized tools and adherence to a specific process:

1. Preparation: The vehicle must be parked, and the 12V battery charged to ensure stable power during the update. Technicians must prepare the required USB-C sticks with the correct software, ensuring their ODIS diagnostic system has the latest updates.
2. Software Update Launch: Connect the diagnostic tester and start ODIS. Navigate to