# B18BD on the 2019 Audi S4

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 B18BD

- [10234557](https://open.wenmarpro.com/bulletins/10234557), 2023-05-05: This bulletin advises that DTCs B18BDF0 and B18BEF0 are erroneously stored and should be cleared.
- [10222106](https://open.wenmarpro.com/bulletins/10222106), 2022-10-05: This bulletin advises that DTCs B18BEF0 and/or B18BDF0 may arise due to a sensitive diagnostic routine; codes can be cleared and no parts require replacement.
- [10203601](https://open.wenmarpro.com/bulletins/10203601), 2021-12-07: This bulletin contains repair instructions for DTCs B18BE13 and B18BD13 with an SOS malfunction message.