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P0456 on the 2010 Audi A8

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
0113992027732112023-01-03. Service bulletin. 01 MIL on, no leak in EVAP system (DTC P045600 in ECM. Software update needed.
0113992027732112022-10-31. Service bulletin. 01 MIL on, no leak in EVAP system (DTC P045600 in ECM. Software update needed.
0113992027732112022-09-26. Service bulletin. 01 MIL on, no leak in EVAP system (DTC P045600 in ECM. Software update needed.
A011399 2027732-2018-02-05. Service bulletin. Supersedes Technical Service Bulletin Group 01 number 13-85 dated April 11, 2013. MIL on. DTC P045600 (very small EVAP leak) stored in engine control module (ECM), J623 (address word 01). No leaks found in the EVAP system. Software update needed.
A011321 2027732-2017-12-05. Service bulletin. Supersedes Technical Service Bulletin Group 01 number 13-99 dated May 17, 2013. MIL on. DTC P045600 (very small EVAP leak) stored in engine control module (ECM), J623 (address word 01). No leaks found in the EVAP system. Software update needed.
A011385 2027732-2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 01 number 13-84 dated April 3, 2013. MIL on. DTC P0456 (very small EVAP leak) stored in engine control module (ECM), J623 (01). No leaks found in the EVAP system.

6 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.