Service bulletins for the 2009 Audi A4
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.
775 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Crankcase ventilation (PCV) are shown. Show all
| SB-2009 | 2012-02-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). AUDI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION PERTAINING TO CERTAIN VEHICLES REGARDING POSITIVE CRANKCASE VENTILATION (PCV) VALVE EXTENSION WARRANTY. *PE |
|---|---|
| SB-BPGBPYBWT | 2012-02-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); ENGINE AND ENGINE COOLING:ENGINE. AUDI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION PERTAINING TO CERTAIN MODEL VEHICLES WITH 2.0L ENGINE CRANKCASE VENTILATION (PCV) VALVE AND INTAKE MANIFOLD RUNNER CONTROL MOTOR WARRANTY EXTENSION. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.