# B143C on the 2025 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 B143C

- [11017659](https://open.wenmarpro.com/bulletins/11017659), 2025-05-03: This TSB provides information when the message "Engine/power nt start system: fault. Please contact workshop" appears; DTC B143C29.