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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.

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Only bulletins with component: Fuel system are shown. Show all

Bulletins, newest first
A011514 2014753-2017-10-21. Service bulletin. FUEL SYSTEM, GASOLINE. Supersedes Technical Service Bulletin Group 01 number 13-09 dated June 21, 2013. The use of contaminated gasoline or gasoline with a low content of deposit control additives may result in excessive accumulation of deposits on intake valves, intake manifold, fuel injectors, and combustion chambers, engine running rough after cold start, excessive engine cranking time, hesitations while driving, rough engine idle, Reduced engine performance, and/or Poor fuel economy. Conditions may be severe enough to illuminate the MIL in conjunction with storage of DTCs for misfire, lean fuel system, or air/fuel ratio imbalance in the engine control module. Condition may be caused by use of contaminated gasoline. Condition may be caused by use of gasoline with a low content of deposit control additives.
Customer Letter2017-10-21. Service bulletin. FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM. This document contains information on the warranty extension for fuel injectors.
Customer Letter2017-10-21. Service bulletin. FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM. This document contains information on the warranty extension for fuel injectors.
A201676204375842017-03-17. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO DIAGNOSE ISSUES WITH FUEL PRESSURE AND TO REPLACE THE FUEL DELIVERY UNIT IF DEVIATIONS ARE FOUND.
A201675204375832017-03-17. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO DIAGNOSE ISSUES WITH FUEL PRESSURE AND TO REPLACE THE FUEL DELIVERY UNIT IF DEVIATIONS ARE FOUND.
A201666204375812017-03-03. Service bulletin. FUEL SYSTEM, OTHER. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO DIAGNOSE ISSUES WITH FUEL PRESSURE AND TO REPLACE THE FUEL DELIVERY UNIT IF DEVIATIONS ARE FOUND.
A201676204375842017-02-28. Service bulletin. FUEL SYSTEM, OTHER. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO DIAGNOSE ISSUES WITH FUEL PRESSURE AND TO REPLACE THE FUEL DELIVERY UNIT IF DEVIATIONS ARE FOUND.
A201675204375832017-02-28. Service bulletin. FUEL SYSTEM, OTHER. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO DIAGNOSE ISSUES WITH FUEL PRESSURE AND TO REPLACE THE FUEL DELIVERY UNIT IF DEVIATIONS ARE FOUND
A201671 204375822016-10-06. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES. THIS TECHNICAL SERVICE BULLETIN PROVIDES INSTRUCTIONS FOR REPLACING THE COOLANT THERMOSTAT WITH A NEW PART NUMBER TO RESOLVE A STORED DTC.
USA B2015-07-23. 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
PRI-A2015-07-23. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. AUDI: ALL AUDI 2011-2012 MODEL YEAR WITH AN 2.0 TFSI ENGINE WILL BE EXTENDING THE WARRANTY ON ALL FUEL INJECTORS. 7/23/15 *TA
TSB-20-12-252013-02-13. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. AUDI: WHEN FUEL TANK IS COMPLETELY EMPTY, INSTRUMENT CLUSTER DISPLAY ZERO MILES FOR FUEL RANGE AND REFUELING SHOWS FUEL TANK ACCEPTS LESS GALLONS THAN OWNER'S MANUAL INDICATES. MODELS 2011-2013 A4, A5, A5 CABRIOLET, S4, S5, S5 CABRIOLET. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.