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Service campaign Circular 27BQ_REV9

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService campaign
NHTSA id11012543
Published by NHTSA2025-01-07
Manufacturer's numberCircular 27BQ_REV9
Manufacturer's date2024-12-17
Campaign id or software version27BQ
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

Under this service action, Audi dealers will replace the starter-alternator in affected vehicles at no cost to owners. A defective starter-alternator may inhibit start/stop functionality which could increase CO2 and other emissions while the vehicle is stopped. Emissions still remain within certification standards. Updated affected vehicle chart, owner notification letters, parts and claiming sections to reflect the addition of the final wave of vehicles. Updated criteria in parts section.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Vehicles listed
AUDI A62019, 2020, 2021, 2022, 2023, 2024
AUDI A6 ALLROAD2020, 2021, 2022, 2023, 2024
AUDI A72019, 2020, 2021, 2022, 2023, 2024
AUDI A82019, 2020
AUDI A82021 to 2024
AUDI Q72020, 2021, 2022, 2023, 2024
AUDI Q82019, 2020, 2021, 2022, 2023
AUDI RS 6 AVANT2021, 2022, 2023, 2024
AUDI RS 72021, 2022, 2023, 2024
AUDI RS Q82020, 2021, 2022, 2023, 2024
AUDI S62020, 2021, 2022, 2023, 2024
AUDI S72020, 2021, 2022, 2023, 2024
AUDI S82020, 2021, 2022, 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.