# B1BF4 on the 2026 Audi S5

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.

## Bulletins for this model year that name B1BF4

- [11035844](https://open.wenmarpro.com/bulletins/11035844), 2026-08-05: This bulletin provides information when DTC B1BF4F3 is stored; control unit for low\-voltage power distribution.