Service bulletins for the 2012 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.
795 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Engine are shown. Show all
| USA B | 2015-07-23. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. AUDI: SOME 2011-2012 AUDI VEHICLES WITH 2.0 TFSI ENGINES WILL HAVE THE WARRANTY EXTENDED FOR INTAKE MANIFOLD AND FUEL INJECTORS. 7/23/15 *TA |
|---|---|
| SB-48326 | 2013-12-06. Service bulletin. ENGINE. AUDI: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION PROVIDED REGARDING WARRANTY EXTENSION ON CARBON BUILDUP REMOVAL, ENGINE CYLINDER HEAD SECONDARY AIR PORTS. MODELS 2009-2012. NO MODEL PROVIDED. *PE |
| TSB-01-12-58 | 2013-03-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. AUDI: WHILE DRIVING, MAINLY SHORT DISTANCE (STOP AND GO), HIGH CRANKCASE PRESSURE CAN LEAD TO DTCS P113700 AND P113900 CODES. CRANKCASE PRESSURE CAN BE LOWERED WITH NEW ECM (ENGINE CONTROL MODULE) SOFTWARE LEVEL AFTER CHANGING CRANKCASE PRESSURE VALVE TO IMPROVE AND ELIMINATE MENTIONED DTC CODES. MODELS 2010-2012 S4, S5, 2009-2011 A6 (C6), 2011-2012 Q7, 2012 A6, A7. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.