2022-2026 Audi Noise and Vibration Analysis TSB

Symptoms

Owners of affected Audi vehicles may experience various types of noise and vibration complaints. These can include, but are not limited to:

• Buzzing noises
• Wind noise
• Crunching, groaning, or crackling sounds
• Thumping noises
• Chattering sounds
• Shaking or general vibration

These symptoms are often difficult to pinpoint, and the root cause may not be immediately obvious to technicians.

Diagnosis / Trigger Conditions

This TSB addresses the challenge of diagnosing elusive noise and vibration issues. The primary diagnostic method involves using the VAS 611 015 PICO-NVH tool, a specialized professional noise analysis system. This tool, combined with an OBD adapter like the VAS 6154, allows technicians to precisely detect sources of noise and vibrations.

During diagnosis, acceleration sensors and microphones are used to capture data. Information such as engine speed and vehicle speed is recorded via the OBD adapter for subsequent analysis. For electric vehicles, such as the Audi e-tron, it is crucial to have the newest PICO software version installed and select the 'EV' setting in the PICO software to ensure vehicle speed signals are accurately recorded.

Repair Procedure Summary

The diagnostic process for an Audi e-tron noise vibration issue or other Audi models involves several key steps:

1. Tool Setup: Technicians will set up the VAS 611 015 PICO-NVH tool, carefully positioning sensors within the vehicle. Photos of these sensor positions, along with the vehicle identification number, must be attached to the billing documentation.
2. Measurement Drive: A test drive is conducted with the PICO-NVH tool actively recording data. The vehicle's mileage before and after the drive is noted.
3. Data Analysis: The recorded data is then analyzed using the PICO software. Screenshots of the measurement report are attached to the billing documentation.
4. Repositioning (If Necessary): If initial analysis indicates the need for different measurement points, the noise analysis tool may be repositioned. The reason for repositioning and photos of the new sensor locations must be documented.
5. Additional Testing: Further test drives and analyses may be performed as needed to thoroughly evaluate the noise or vibration issue.

Throughout this process, all work performed must be meticulously documented for accuracy and warranty purposes.

Required Tools or Parts

To perform the professional noise analysis described in this TSB, specific equipment is required:

• VAS 611 015: The PICO-NVH tool itself, central to the noise and vibration analysis.
• VAS 6154: An OBD adapter used to record engine and road speed data.
• VAS 6160/VAS 6150: A VAS tester running the current version of ODIS (Windows 10) is needed to interface with the diagnostic tools.
• PassThru driver (J2534): An additional driver must be installed to connect the diagnostic interface VAS 6154 to the PICO NVH tool for OBDII adapter functionality.

Owner Action

If you are experiencing persistent noise or vibration issues with your 2022-2026 Audi, including an Audi e-tron noise vibration concern, it is recommended to schedule an appointment with an authorized Audi dealership. This diagnostic procedure requires specialized tools and trained technicians. While the TSB is informational, the diagnostic work itself may be covered under warranty if your vehicle qualifies. Be prepared to describe the conditions under which the noise or vibration occurs to assist the technicians in their diagnosis.

NHTSA ID: 11022664