2021-2024 Audi Starter-Alternator Emissions Service Action
Audi has issued Service Action 27BQ to replace the starter-alternator in certain 2021-2024 Audi Q8, A6, A7, Q7, and RS models. This service action addresses potential emissions impacts. Owners will be notified for the final wave of affected vehicles in December 2024.

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- Audi A6
- 2021–2024
- Audi A6 allroad
- 2021–2024
- Audi A7
- 2021–2024
- Audi Q7
- 2021–2024
- Audi Q8
- 2022–2023
- Audi RS 6 Avant
- 2021–2024
- Audi RS 7
- 2021–2024
- Audi RS Q8
- 2021–2024
- Audi S6
- 2021–2024
- Audi S7
- 2021–2024
- Audi S8
- 2021–2023
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Audi has issued a dealer communication, 27BQ_REV20241206, announcing a revision to its ongoing Emissions Service Action 27BQ, which addresses the starter-alternator in various 2021-2024 models. This revision, dated December 06, 2024, is specifically for "All Dealer Personnel" and signifies an important update to the campaign. The primary purpose of this revision is the addition of a fifth and final wave of vehicles to the service action, with owner notifications for these vehicles scheduled for December 2024.
What is Service Action 27BQ?
Service Action 27BQ is a manufacturer-initiated campaign by Audi designed to address a specific issue with the starter-alternator in affected vehicles. This Audi starter-alternator replacement is a critical component of the vehicle's emissions control system. As an Emissions Service Action, it aims to ensure that vehicles comply with environmental standards. The repair, including the replacement of the defective starter-alternator, is performed by authorized Audi dealers at no cost to the owner.
Key Revisions and Owner Notification
This latest communication, 27BQ_REV20241206, details significant revisions to the existing Service Action 27BQ. Crucially, a "fifth (final) wave of vehicles" has now been incorporated into the scope of this service action. Owners of these newly added vehicles can expect to receive official notification from Audi in December 2024. Furthermore, Audi has made updates to several key sections of the service action documentation, including "Parts information," "Work instructions," and "Claiming information." These updates are essential for dealers to accurately identify necessary components, correctly perform the repair procedure, and properly process warranty claims related to the Audi starter-alternator replacement.
Important Information for Dealers
Audi emphasizes the importance of this notice for all dealership personnel. To ensure a smooth and accurate execution of Service Action 27BQ, it is imperative that everyone with campaign-related responsibilities thoroughly reviews the revised circular. This updated information has been published to "ELSA" and "Service References in Elsa2Go," Audi's comprehensive technical information systems. Dealers are instructed to discard any previously printed paper copies of the service action documentation and ensure they are replaced with the most current version. This measure prevents the use of outdated information. Dealerships are also advised to ensure all personnel are aware of this notice to effectively address customer questions. For additional assistance, warranty-related inquiries should be directed to the Warranty department, and press inquiries to Audi Public Relations.
Source: NHTSA ID 11012549
Frequently Asked Questions
- What is Audi Service Action 27BQ?
- Audi Service Action 27BQ is a manufacturer communication detailing a free repair to replace a defective starter-alternator in specific 2021-2024 Audi models.
- What is the problem with the starter-alternator?
- Audi has identified an issue with the starter-alternator that requires an Emissions Service Action. While the specific details of the defect are outlined in the full service action documentation, the purpose of this action is to ensure the vehicle's emissions systems function as intended.
- Will I be notified about this service action?
- If your vehicle is part of the fifth (final) wave of affected vehicles, you should receive an owner notification from Audi in December 2024.
- Is the Audi starter-alternator replacement free?
- Yes, the replacement of the defective starter-alternator under Service Action 27BQ will be performed by Audi dealers at no cost to the owner.
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