2023-2026 Audi Noise and Vibration Diagnosis TSB

Symptoms

Owners of 2023-2026 Audi vehicles may experience Audi noise vibration or general noise and vibration complaints. Technicians often find that while the concern can be duplicated, the root cause is not easily identified through standard diagnostic methods.

Diagnosis and Trigger Conditions

This Technical Service Bulletin (TSB) addresses the challenge of precisely identifying the sources of noises and vibrations. It outlines a detailed measurement process using the VAS 611 015 PICO-NVH tool, which utilizes acceleration sensors and microphones. The tool also records crucial information such as engine speed and vehicle speed via the VAS 6154 OBD adapter for subsequent analysis.

Important Warnings for Audi e-tron Vehicles

For Audi e-tron vehicles, specific software and settings are critical for accurate diagnosis:

• PICO Software Version: Ensure that the newest PICO software version is installed. Failure to do so will prevent the vehicle speed signal from being recorded via the on-board diagnosis adapter.
• 'EV' Setting: When connecting the on-board diagnosis adapter VAS 6154, the 'EV' setting must be selected within the PICO software.

Diagnostic Procedure Summary

Audi's TSB 00 23 81 2070568/2 provides comprehensive guidelines for technicians to perform professional noise analysis. The process involves several stages:

1. Setting-up Time: This includes the initial setup of the noise analysis tool. The repair operation code for this is 0161 0199, with an allocated time of 50 Time Units (TU).
2. Measurement/Test Drive: Technicians conduct a measurement drive to capture noise and vibration data. The repair operation code is XXXX 0199, and billing is based on the time required, depending on the specific component being analyzed.
3. Analysis/Evaluation: The recorded data is then analyzed and evaluated. This also uses repair operation code XXXX 0199, with billing according to the time required.
4. Repositioning Measuring Technology: If necessary, sensors may need to be repositioned for further measurements. The repair operation code for this is 0161 3199, with an allocated time of 25 TU.

Throughout this process, technicians are required to observe information on predecessors, included, and excluded items in the repair operations. They must also use repair operations from APOS for the removal of other components.

Required Tools and Software

To perform the diagnostic procedures outlined in this TSB, technicians need specific equipment and software:

• VAS 611 015 PICO-NVH Tool: This is the minimum required tool, a specialized PicoScope NVH Kit.
• VAS 6154: This OBD adapter requires the installation of specific drivers on the workshop laptop. Instructions for connecting the VAS 6154 to the VAS 611 015 PICO NVH Tool and for obtaining the necessary software can be found on Audi ServiceNet under "Workshop Equipment >> Tool Information >> Tool Software Updates."
• VAS 611 015 Software: This software is essential for the PICO-NVH tool and is also available via Audi ServiceNet.

Documentation Requirements

All work performed under this TSB must be thoroughly documented. This includes:

• Attaching photos of sensor positions, with at least one photo including the vehicle identification number (VIN).
• Labeling photos (e.g., "sensor A measurement setup 01").
• Noting the mileage before and after any test drives.
• Keeping screenshots of the measurement report from the analysis for the repair order.

Warranty Information

This Technical Service Bulletin provides important details regarding warranty claims for Audi noise vibration diagnosis:

• Claim Type: Warranty coverage is generally applicable for 110 up to 48 months or 50,000 miles. If the vehicle is outside this warranty period, the TSB is for informational purposes only.
• Service Number: Technicians should use the appropriate Service Number for the casual part.
• Damage Code: The correct Damage Code for the cause must be used.
• Claim Comment: All warranty claims must include the comment "Diagnosis per TSB 2070568/2" and adhere to the Audi Warranty Policies and Procedures Manual. Claims are subject to review or audit by Audi Warranty.

Owner Action

If you are experiencing persistent Audi noise vibration or other unusual noises in your 2023-2026 Audi, it is recommended to schedule an appointment with an authorized Audi service center. Inform them about your concerns, and mention that you are aware of Technical Service Bulletin 00 23 81 2070568/2, which provides specific diagnostic procedures for these types of complaints.

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Source: NHTSA ID: 10245285