P0456 on the 2016 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.
| A201553 2042166- | 2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 20 number 15-51 dated October 28, 2015. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts. |
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| A201551 2042166- | 2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 20 number 15-49 dated October 15, 2015. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts. |
| A201549 2042166- | 2017-11-17. Service bulletin. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts. In an effort to gain information, we are asking that you contact the Audi Technical Assistance Center (TAC) before replacing any parts. This will assist us in diagnosing any potential issues with the condition noted above. |
| A201557 2042166- | 2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 20 number 15-53 dated October 29, 2015. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. Various parts have been replaced under warranty for the condition noted above, but no issues were identified with these parts. In an effort to gain information, we are asking that you contact the Audi Technical Assistance Center (TAC) before replacing any parts. This will assist us in diagnosing any potential issues with the condition noted above. |
| A201658 2042166- | 2017-10-04. Service bulletin. MIL on (DTC P045600 - EVAP system leak detected NVLD (very small leak)) - Repair Authorization. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the engine control module (ECM), J623 (address word 01). Drivability is not affected. |
5 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.