2023-2024 Audi A3/S3/RS 3 Instrument Cluster Fault U105400

Owners of 2023-2024 Audi A3, S3, and RS 3 vehicles may encounter an issue where the instrument cluster fails to properly display call lists or media lists. Instead, the message "No entries available" appears on the screen after the list is briefly shown. This problem, identified by Audi TSB 90 24 82 2073608/1, is linked to a specific Diagnostic Trouble Code (DTC) and indicates a software-related fault within the instrument cluster.

Symptoms

The primary symptom reported by owners is that the selected call list or media list appears on the instrument cluster for only a few seconds before being discarded. Following this, the instrument cluster displays the message, "No entries available." Workshop technicians have also observed that the presence of emojis (small symbols or pictograms) within these lists can trigger the fault condition. This directly impacts the functionality of the 2023 Audi S3 instrument cluster U105400 issue.

Fault Codes / DTCs

When this condition occurs, the following Diagnostic Trouble Code (DTC) is typically stored in the instrument cluster control module J285 (address word 0017):

• U105400: Information electronics control module 1, no communication

Technical Background

Audi has determined that the root cause of this problem is a software issue within the instrument cluster. The software in earlier production models was not optimized to handle certain data, leading to the display malfunction and the storage of DTC U105400. This issue affects the 2023 Audi S3 instrument cluster U105400 and other models.

Repair Procedure Summary

The resolution for this issue involves updating the software of the instrument cluster J285. This is performed using the SVM (Software Version Management) update procedure, identified by SVM action code 17A049. Technicians must follow the instructions detailed in TSB 2011732, titled "00 Software Version Management (SVM), operating instructions."

During the update process, it is crucial to use DoIP (Diagnostics over Internet Protocol) when flashing the control module via ODIS. To activate DoIP, technicians need to navigate through the diagnostic system menu: Administration >> General >> GFF Process >> DoIP communication >> Only allow DoIP communication. This setting automatically resets once the diagnostic session concludes. A red LED on the VAS 6154(A) diagnostic tool indicates that DoIP is active.

Required Software and Parts

The software update targets specific part numbers and versions. The new software version required is 7380 or higher. The SVM Code Input for this update is 17A049.

Software Part Number (SW – HW part number)	Current Software Version	New Software Version (or higher)
8Y0920700C-8Y0920700C	7362, 7364, 7370	7380
8Y0920700J-8Y0920700C	7370	7380
8Y0920800C-8Y0920800C	7362, 7364, 7370	7380

Important Warranty Information

This Technical Service Bulletin (TSB) 90 24 82 2073608/1 outlines the warranty coverage for this repair. The claim type is 110 for vehicles up to 48 months or 50,000 miles. For Certified Pre-Owned (CPO) vehicles, claim type G10 applies, requiring owner verification. Owners should be aware of a critical detail:

• "If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only."

This means that if your 2023 Audi S3 instrument cluster U105400 issue occurs outside of the specified warranty parameters, the repair may not be covered free of charge. Always consult with your authorized Audi dealer regarding warranty eligibility.

Warranty Details

• Service Number: 9025
• Damage Code: 0039
• Labor Operations: Software Update (includes checking for DTCs) – 0151 0060. The time stated on the diagnostic protocol (maximum 100 TU) applies.
• Diagnostic Time: GFF (included above) – No allowance (0 TU)
• Road Test: No allowance (0 TU) for road tests before or after the service procedure.
• Claim Comment: As per TSB 2073608/1

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

Production Solution

Audi has implemented an optimized software solution in production for all models starting with model year 2025. This means that newer vehicles should not experience the 2023 Audi S3 instrument cluster U105400 problem.

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Source: NHTSA ID: 10253268, TSB 90 24 82 2073608/1