# P0456 on the 2023 Audi TT

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.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0456

- [11034668](https://open.wenmarpro.com/bulletins/11034668), 2026-07-07: This bulletin provides information when the fuel tank cap seal is leaking; DTC P044200, P045600 and/ or P00EF00 in stored in the ECM.
- [11025354](https://open.wenmarpro.com/bulletins/11025354), 2025-11-08: This bulletin provides information when the fuel tank cap seal is leaking; DTC P044200, P045600 and/ or P00EF00 in stored in the ECM.
- [11022688](https://open.wenmarpro.com/bulletins/11022688), 2025-09-04: This TSB provides information when the fuel tank cap seal is leaking, DTC P044200, P045600, and/or P00EF00 stored in ECM.
- [10230589](https://open.wenmarpro.com/bulletins/10230589), 2023-02-07: This bulletin provides instructions for when the MIL is on and DTC P044200 and/or P045600 is stored in the ECM.
- [10225530](https://open.wenmarpro.com/bulletins/10225530), 2022-11-04: If DTC P044200 or P045600 are present, the GX36 may need to be replaced.