2021-2024 Audi Service Bulletin: Airbag Lights, Water Leaks, Door Issues

Audi has released an internal communication, an "On-car analysis list from June, / 2024," detailing various technical topics for its service technicians. This document, identified by NHTSA ID 11002988, provides guidance on diagnosing and addressing a range of issues affecting 2021-2024 Audi models, including the Audi e-tron. It outlines specific instructions for different fault conditions, ensuring proper analysis and repair.

This communication serves as a reference for technicians, covering diverse problems from airbag warning lights to water leaks and door functionality. It emphasizes the importance of following specific diagnostic steps and contacting Audi Helpline (TAC) for certain complex issues, particularly those that may affect the Audi e-tron service issues.

Important Warnings and Diagnostic Instructions

Audi's communication includes several critical warnings and diagnostic instructions for technicians to ensure accurate repairs and prevent further issues:

• Contact Audi Helpline: Technicians are instructed to contact Audi Helpline before attempting any repair. As of June 7, 2024, worksheets are only required if specifically listed in the topic details.
• Do Not Perform GFF Test Plan: For certain airbag light DTCs (B101704, B103604, B101C13, B101D13, B12251B), technicians are explicitly told not to perform a Guided Fault Finding (GFF) test plan.
• Do Not Erase DTCs: For airbag light issues, specifically those related to DTCs B101704, B103604, B101C13, and B101D13, technicians must not erase the Diagnostic Trouble Codes.
• Airbag Control Module (J234 da0015) with DTC B12251B: If DTC B12251B is stored in the airbag control module, technicians must contact TAC. They are warned not to perform GFF or test plans for this DTC, and crucially, not to perform any repairs or disconnect the PODS sensor mat or PODS control module.
• Sunroof Drain Hose: For water intrusion issues caused by a kinked sunroof drain hose, technicians are instructed not to disturb the lines and to contact TAC before any repairs are made.
• Window Repairs: Before making any repairs to an affected window, technicians must take a video of the customer's complaint. If the complaint is resolved (e.g., by cleaning slot seals or reinstalling the window guide), a second video of the window operation is required.

Specific Issues and Guidance

This communication addresses several distinct issues, providing targeted guidance for each. Owners experiencing any of these problems, including Audi e-tron service issues, should consult their authorized Audi dealer.

Airbag Warning Lights (DTCs B101704, B103604, B101C13, B101D13, B12251B)

Multiple airbag light issues are covered:

• Audi Q5 (2021-2024): If the "Airbag light on" is present with DTCs B101704 or B103604, technicians are directed to see TSB 2073566 for instructions. They must not perform a GFF test plan or erase the DTCs.
• Audi Q5 (2024): For a general "Q5 Airbag light" without specific DTCs listed, technicians should refer to a worksheet for instructions, again avoiding GFF test plans and DTC erasure.
• Audi Q7 (2023-2024): If the "Airbag light B12251B" is stored in the airbag control module, J234 (da0015), technicians must contact TAC. They are strictly advised not to perform GFF or test plans for this DTC, nor to perform any repairs or disconnect the PODS sensor mat or PODS control module.

Inoperative Roof Panel Buttons

• Audi Q4 e-tron (2022-2024): This issue describes "Dome light buttons unresponsive or come on with no input" and "Sunroof buttons are unresponsive" (typically in addition to the dome light). Technicians should consult a worksheet for instructions.

Water Intrusion from Kinked Sunroof Drain Hose

• Audi e-tron, Q8 e-tron (2023-2024): Owners may observe "Evidence of water intrusion from sunroof area," such as dripping from the roof electronics module or water stains on the headliner. If a "Kinked sunroof drain found," technicians are warned not to disturb the lines and to contact TAC before proceeding with repairs. This is a significant concern for Audi e-tron service issues.

Hard-to-Close Front Doors

• Audi Q5 (2024): If the "Front door(s) hard to close," technicians must measure the dimensions of the door as outlined in an associated worksheet before attempting repairs. The communication notes a specific condition: "Q5 Front door high closing effort."

Noisy or Binding Front Windows

• Audi A4, S4, A4 allroad (2023-2024): If "the front windows is noisy and/or binding," technicians are required to take a video of the customer's complaint before making repairs. After identifying the root cause (e.g., window regulator, window guide), they must take another video if the complaint was resolved (e.g., by cleaning slot seals or reinstalling the window guide).

Front Door Wind Noise

• Audi Q7 (2023-2024): For "Front door wind noise" experienced at highway speeds, technicians need to detail findings to identify the source of the noise. Further details are available in a specific worksheet.

Corrosion on Wheelhouse Cover Plate

• Audi Q7, Q8 (2017-2019): This issue requires various photos and inspections, as detailed in a specific worksheet.

What Owners Should Do

If you are experiencing any of the issues described in this communication, particularly those affecting your Audi e-tron service issues, it is recommended to contact your authorized Audi dealership. Provide them with details of the symptoms you are observing. Reference to this manufacturer communication (NHTSA ID 11002988) or specific TSB 2073566 may assist the service center in quickly identifying the appropriate diagnostic and repair procedures.

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Source: NHTSA ID 11002988