Service bulletins for the 2009 Audi S4
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.
226 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Latches and locks are shown. Show all
| A572200202203210 | 2023-01-06. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LOCK. This technical service bulletin provides troubleshooting information for the vehicle locking system. |
|---|---|
| A551332 2023967- | 2017-12-05. Service bulletin. ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD; LATCHES/LOCKS/LINKAGES:HOOD:LATCH. Supersedes Technical Service Bulletin Group 55 number 13-30 dated May 28, 2013. "Low Oil Level" message is on in the DIS or MMI. The hood must be open for at least 30 seconds for a reset of this message to be performed. The message is not reset in the DIS/MMI because the hood has not been recognized as being opened due to an inoperative hood contact switch. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.