B2F04 on the 2016 Audi A6
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| A9619452049284_2 | 2019-12-07. Service bulletin. This bulletin contains a software update for an intermittent error message for traffic sign recognitions or the active lane assist, DTC B2F0400. |
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| A961720 2049284 | 2018-04-16. Service bulletin. This bulletin contains a software update for an intermittent error message for traffic sign recognitions or the active lane assist, DTC B2F0400. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.