2024-2026 Audi B&O Tweeter and Time Sync Issues

Audi has released Technical Service Bulletin (TSB) 2066297, an important document detailing an on-car analysis list for their VIN-4-PIN reporting program (V4P, vin4pin). This bulletin outlines diagnostic and reporting procedures for two distinct issues affecting various 2024-2026 Audi models: problems with the Bang & Olufsen (B&O) extendable tweeter and a time synchronization error in PPE/PPC vehicles.

This TSB is crucial for technicians to gather specific data when customers report these concerns, ensuring accurate analysis by Audi. Owners experiencing these symptoms, such as an "Audi B&O tweeter stuck" or an incorrect vehicle clock, should be aware of the detailed information their service center will need to collect.

Important Warning

Audi explicitly states: "Please contact Audi Helpline before attempting repair." This directive is aimed at technicians, emphasizing that specific procedures and data collection are required before any repair attempts are made. For owners, this means your dealership will likely follow a detailed diagnostic process before proposing a solution.

Symptoms

Owners of affected Audi vehicles may notice one of two primary symptoms:

• B&O Extendable Tweeter Malfunction: The "Tweeter gets stuck or shutters during operation" in the dash-mounted Bang & Olufsen audio system. This can manifest as the tweeter not fully extending, retracting improperly, or making unusual movements during operation.
• Time Synchronization Error: For PPE - PPC vehicles, the "time is off by 1 hour." This means the vehicle's clock consistently displays a time that is precisely one hour incorrect, which can affect navigation and other time-dependent vehicle functions.

Diagnosis and Data Collection

For both issues, TSB 2066297 provides specific instructions for technicians to gather comprehensive data for the VIN-4-PIN reporting program. This data is vital for Audi's ongoing analysis and development of potential solutions.

For B&O Extendable Tweeter Issues:

When a customer reports an "Audi B&O tweeter stuck" or shuttering, technicians are instructed to:

• Document the concern: Take a short video clearly duplicating the tweeter malfunction.
• Initial check: Manually extend the tweeter fully and then cycle the ignition key to see if the function is restored.
• Diagnostic scan: Perform an output diagnosis to ensure it works correctly, then clear any existing fault codes and re-evaluate the system.
• WEB TAC case: Create a WEB TAC case with all documentation provided.

For PPE - PPC Vehicle Time Synchronization Issues:

If a vehicle's time is consistently "off by 1 hour," technicians must collect detailed information, including:

• Photographic evidence: Capture a photo showing the time displayed in the instrument cluster, the time settings in the MMI infotainment system, and a separate photo from another phone or device showing the navigation location and the correct time, all in one image.
• Measuring Value Blocks (MVB) readings: Read all MVB's from Da0075 both when the issue is not present and when it is actively occurring. Technicians must document the log ID corresponding to the active issue.
• Location details: Provide specific location information where the duplicate concern was observed, including whether it can be replicated in other vehicles, if the area is near another time zone, and an exact address or GPS location where the problem occurs.

Repair Procedure Summary

TSB 2066297 is primarily a data-gathering bulletin rather than a direct repair procedure. It guides technicians on how to thoroughly document and report these specific issues to Audi's VIN-4-PIN program. The aim is to provide Audi with sufficient information for further analysis, which may lead to future software updates or repair instructions. Therefore, the immediate action for technicians is to follow the detailed diagnostic and reporting steps, rather than attempting an unapproved repair.

Owner Action

If your 2024-2026 Audi is experiencing an "Audi B&O tweeter stuck" or the vehicle's clock is consistently off by one hour, you should schedule an appointment with your authorized Audi dealer. Be prepared to describe the symptoms in detail. The dealer will follow the procedures outlined in TSB 2066297 to diagnose the issue and submit the necessary information to Audi for analysis. Since this is an analysis and reporting program, it's important for owners to provide as much detail as possible about when and where the issue occurs to assist the technicians.

Source: NHTSA ID: 11028396