2024-2025 Audi e-tron GT MMI Software Update for Connectivity Issues

Symptoms

Owners of 2024-2025 Audi e-tron GT and RS e-tron GT vehicles may experience various MMI functions problems. Additionally, the instrument cluster might display an "Emergency call fault" message. These issues are typically observed in vehicles equipped with specific older software versions in diagnostic address 5F, including 4014, 4026, 4318, or 4404. This Audi e-tron GT MMI software update aims to resolve these connectivity and infotainment system glitches.

Important Warnings and Owner Information

Audi has provided several key advisories for technicians and owners regarding this software update:

• Diagnostic entries logged in diagnostic address 0075 will be repaired by the software update described in TSB 2079979/3. Guided Fault Finding test plans should not be carried out and cannot be invoiced for these specific entries.
• There will be extended inactive periods during some steps of the update process. Technicians are permitted to work on other vehicles during these times, which is accounted for in warranty instructions.
• When performing this TSB, time stamps are not required for billing under warranty.
• A newly developed test program is used to input the SVM code. Technicians must ensure their tester has the latest ODIS update, as the new test program for software updates is included in ODIS software.
• The vehicle uses acoustic signals and flashing lights to indicate when user input is required during and at the end of the test program.
• It is important to prepare the required USB-C sticks (see parts information below) before starting the repair. The update media can be used for multiple vehicles.
• This update package also includes new software for the MIB3 infotainment system. Further information on MIB3 software updates can be found in TSB 2060523, titled "91 MIB3: Software Update Instructions."
• The USB-C stick can be removed after completing the program.
• If the update procedure is interrupted, step 1 must be repeated. The test program will then automatically perform the missing part of the update.
• If the emergency call LED in the roof module does not turn green after the update, refer to TSB 2079652, titled "Emergency call LED in roof module not lit up in green."
• If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only.
• Guided Fault Finding test plans should not be carried out for diagnostic entries that are repaired by performing this TSB and cannot be invoiced.
• Technicians must not use an SD card with an adapter USB stick.
• The USB-C stick and downloading the software via the SD creator cannot be invoiced.
• Do not use a USB-C stick with a larger storage capacity than specified, as such sticks may have a different formatting process.

Diagnosis / Trigger Conditions

The primary trigger for this service action is the presence of customer complaints regarding MMI functions or an "Emergency call fault" message. Workshop findings confirm the issue if the vehicle's diagnostic address 5F (Information Electronics) still contains one of the following software versions: 4014, 4026, 4318, or 4404. This indicates the need for the Audi e-tron GT MMI software update detailed in TSB 2079979/3.

Repair Procedure Summary

The repair involves a software update for the emergency call module (0075), gateway (0019), and information electronics (005F). The process begins by determining the current software module version in diagnostic address 0019 using the SVM code "DUCIDENT0019". After the software update is performed, the vehicle should be put into bus sleep mode. Subsequently, the ignition is switched back on, and the MMI system is started. A critical step is to check if the emergency call LED in the roof module lights up green. If it does not, further diagnosis using TSB 2079652 is required. Finally, the diagnostic session is ended, and the diagnostic log is sent online.

Required Tools and Parts

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

• USB-C sticks: These must have a minimum capacity of 32 GB and support USB 2.0. It is crucial not to use SD cards with USB adapters or USB-C sticks with larger storage capacities, as they may have incompatible formatting.
• Software Part Numbers:
  • For MIB3 SW versions 4014, 4026, and 4404: Part number 8W0906961GB.
  • For MIB3 SW version 4318: Part number 8W0906961GF.
• ODIS Update: The diagnostic tester being used must have the latest ODIS software update, which includes the new test program for software updates.

Warranty Information

For warranty claims related to this TSB, the following details apply:

• Claim Type: If the vehicle is outside of warranty, this Technical Service Bulletin is informational only.
• Service Numbers:
  • For complaints about online services or the emergency call function: 9145.
  • For complaints about MMI functions: 9196.
• Damage Code: 0041.
• Labor Operations:
  • Prepare repair: Labor operation code 0151 0010 (20 Technical Units). This includes parking the vehicle and charging the 12V battery.
  • Launch software update for MMI and emergency call module: Labor operation code 0151 0040 (60 Technical Units). This involves connecting the tester, starting ODIS in flash mode, using the Function Authorized Multiple Code Entry, copying the code chain, and inserting the USB stick.

When performing this TSB 2079979/3, time stamps are not required for billing under warranty, and the update can be performed by non-productive personnel.

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Source: NHTSA ID: 11031023