# B13B9 on the 2018 Audi A4 allroad

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 B13B9

- [10163431](https://open.wenmarpro.com/bulletins/10163431), 2019-08-07: This bulletin contains a software update for when the MMI screens go blank and the system reboots, it may have stored DTC U10CF00 and/or B13B901.