Service bulletins for the 2015 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.
690 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Engine are shown. Show all
| A17167120381195 | 2017-03-02. Service bulletin. ENGINE. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO TEST FOR AND REPLACE A DEFECTIVE OIL LEVEL SENSOR. |
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| A15162820399952 | 2017-03-02. Service bulletin. ENGINE. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO VERIFY A RATTLING NOISE HEARD AT COLD START AND TO REPLACE BOTH UPPER CHAIN TENSIONERS OF BANK 1 AND BANK 2 WITH AN OPTIMIZED PART. |
| A20166920441821 | 2017-02-23. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. THIS TECHNICAL SERVICE BULLETIN IS REPAIR AUTHORIZATION FOR ISSUES WITH FUELING THE VEHICLE. |
| A17167520381197 | 2016-10-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO TEST FOR AND REPLACE A DEFECTIVE OIL LEVEL SENSOR. |
| SB-01-15-29 | 2015-10-15. Service bulletin. ENGINE. AUDI: ENGINE, ON SOME VEHICLES, WOULD RUN IRREGULARLY OR HAVE MALFUNCTION INDICATOR LAMP (MIL) ON OR POSSIBLE FILTER ELEMENT FOR CAMSHAFT ADJUSTMENT VALVE CAN LOOSEN AND IN OIL CIRCUIT, THERE IS NO DAMAGE FROM LOOSENED PARTICLES. MODEL ALL. ALL YEARS. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.