# P164B on the 2013 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 P164B

- [10122528](https://open.wenmarpro.com/bulletins/10122528), 2017-11-08: Supersedes Technical Service Bulletin Group 01 number 14\-71 dated March 13, 2014. The MIL is on. DTC P164B\(00\) is stored in the engine control module.The oil pressure switch is defective.
- [10122279](https://open.wenmarpro.com/bulletins/10122279), 2017-11-08: The MIL is on. DTC P164B\(00\) is stored in the ECM. The oil pressure switch is defective.