Service bulletins for the 2014 Audi S5
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
728 on file from NHTSA, as of 2026-10-19.
About P0456 on the 2014 Audi S5: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0456 are shown. Show all
| A201431 2035073- | 2017-11-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Supersedes Technical Service Bulletin Group 20 number 13-28 dated November 14, 2013. The MIL is on. DTC P045600 (EVAP System Leak Detected NVLD (very small leak)) is stored in the ECM. Drivability is not affected. The NVLD pressure switch may erroneously detect a very small leak. |
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| A201328 2035073- | 2017-10-31. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 20 number 13-27 dated October 16, 2013. MIL 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.