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Service bulletins for the 2004 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.

121 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
A901341 2010353-2017-10-31. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Supersedes Technical Service Bulletin Group 90 number 10-14 dated August 10, 2010. Cigarette lighter element will not lock into the lighter socket -U1- to begin the heating process, or the lighter element will not automatically release once the heating process has completed. As a result, the socket can become inoperative when used as a power outlet.
A611321 2010342-2017-10-31. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 61 number 11-14 dated August 16, 2011. Convertible top exterior cloth appears soiled. The convertible top is made of durable fabric that has been treated at the factory with a compound that helps repel dirt and water. With proper care, the cloth will retain its function and proper appearance for a long time. It is normal, however, for the fabric to change color somewhat as it ages. This is particularly true of lighter-color tops. The cloth tension changes when the top is opened, which can cause kinks. When the top is closed, the kinks improve after a short time. However, these material-related kinks can never be completely avoided. In addition, dirt and dust can deposit in the kinks. If these dirt and dust deposits are not properly removed in a car wash, they can contribute to poor appearance
A571394 2035367-2017-10-31. Service bulletin. EQUIPMENT. Various features in the rear passenger compartment are inoperative. Some features may include power rear windows, rear climate control operating unit, rear sunroof panel, rear reading lamps, rear cigarette lighters, etc. By design, many electronically-controlled features in the rear passenger compartment, in addition to the power rear windows, are deactivated if the child lock in the driver's door is activated.
A101310 2018288-2017-10-31. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 10 number 10-02 dated September 14, 2010. Prior to engine replacement, any debris lodged in transferred assemblies must be removed. If the vehicle's engine experienced a serious mechanical problem, it is possible that small pieces of metal debris resulting from the mechanical problem may have become deposited in the intake manifold, air intake hoses, exhaust manifolds, exhaust down-pipes, turbocharger, supercharger, and/or intercooler. If these pieces are not removed prior to the installation and operation of the replacement engine, the pieces may be drawn into the combustion chamber, which can cause a knocking noise and subsequent serious engine damage.
A911598 2018187-2017-10-27. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 14-50 dated July 10, 2014. Customer may report that cracking, grinding, rattling, humming, whining, or similar interference is coming from one or more speakers. Parts of the speakers (such as the brackets, cables, or covers) or parts of the interior fittings (such as door covers, rear shelf, facings, or covers) can vibrate at certain frequencies, causing noises. The radio tuner or other control modules may be affected by electromagnetic interference from aftermarket electronic devices.
A011507 2028344-2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-69 dated February 14, 2013. Noises and inconsistent engine operation after cold start during the catalyst heating phase. The customer may misinterpret these symptoms as engine misfiring. This bulletin applies only to non-diesel engines.
A971548 2013504-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 97 number 10-15 dated October 20, 2010. Sporadic fault memory entries are stored in various control modules. Contacts may be widened (over 0.63 mm) if incorrect pins or incorrect methods for current flow tests are used. Either action may cause intermittent electrical connections, which can cause sporadic DTCs to be stored in various control modules.
A941565 2012749-2017-10-21. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. Supersedes Technical Service Bulletin Group 94 number 12-92 dated October 24, 2012. Condensation is visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, or third brake light lens.
A911579 2038824-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 14-69 dated November 4, 2014. The following message appears on the MMI display: "Device or cable type not supported". The AMI cable being used is a genuine Audi-branded cable with an Audi part number (see Required Parts and Tools for a list of valid part numbers). The "Device or cable type not supported" message may be displayed when an incorrect AMI cable type is connected to the MMI system. Only cables with an Audi part number (i.e., 4F0.XXX.XXX) are supported by the MMI system. Volkswagen-branded cables look similar, but are not guaranteed to work with Audi MMI systems. The label on the end of an Audi-branded cable has an Audi logo and Audi part number. Audi-branded cables have unique firmware inside the hardware that can determine which MMI system and iOS device are connected to the cable. Volkswagen cables do not have this firmware. The firmware is required to allow the system to function normally due to the different technology available in the different MMI systems and in the different iPhones and iPod Touch devices. In addition, the AMI system was designed to play the music stored locally on the connected device only. Music streaming (from Spotify or Pandora, for example) is not supported, and music stored in the cloud (on Google Play, Amazon Prime, or iTunes Match/iCloud, for example) may drop out, pause, and skip when played.
A911578 2011500-2017-10-21. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Supersedes Technical Service Bulletin Group 91 number 08-129 dated November 12, 2008. Customer states that the reception of satellite radio occasionally fades or drops out. The information display may show a message related to the satellite radio, such as "Linking", "Updating", "Acquiring Signal", "Loading", "No Signal", or "No Sat".
A171557 2010043-2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 17 number 13-35 dated January 9, 2013. This bulletin lists engine oils that meet Audi oil quality standards (VW 501 01, 502 00, 505 00, 505 01, and 504 00/507 00).
A101511 2018288-2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 10 number 13-10 dated September 5, 2013. Prior to engine replacement, any debris lodged in transferred assemblies must be removed. If the engine experienced a serious mechanical problem, it is possible that small pieces of metal debris resulting from the mechanical problem may have become deposited in the intake manifold, air intake hoses, exhaust manifolds, exhaust down-pipes, turbocharger, supercharger, and/or intercooler. If these metal debris pieces are not removed prior to the installation and operation of the replacement engine, they could be drawn into the combustion chamber, which can cause a knocking noise and subsequent serious engine damage.
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.
SB-2028053/22016-05-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-01-15-292015-10-15. 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
TSB-44-13-462014-03-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. AUDI: ON CERTAIN VEHICLES, USE CALIBRATED TORQUE WRENCH AND NOT TORQUE STICKS, TORQUE EXTENSION BARS AND IMPACT GUNS/WRENCHES NOT APPROVED FOR USAGE ON WHEEL BOLTS BY MANUFACTURER, THAT CAN CAUSE DAMAGE TO BRAKE, STEERING WHEEL, HUB. MODEL 1995-2014 ALL. *PE
37-13-072013-07-10. Service bulletin. VEHICLE SPEED CONTROL. AUDI: SOME VEHICLES MAY LACK POWER OR WILL NOT MOVE AFTER STOP DUE TO SIMULTANEOUSLY DEPRESSING THE BRAKE AND ACCELERATOR PEDALS. *JS
SAC-28F2-REV2011-03-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. AUDI: GASOLINE ENGINE VEHICLES; INSPECT, AND IF NECESSARY, REPLACE IGNITION COILS. VEHICLES AFFECTED BY THIS ACTION MAY HAVE IGNITION COILS THAT COULD MALFUNCTION UNDER CERTAIN CONDITIONS. ADDED FINAL MAILING PHASE-8/10 VIN INFORMATION. MODELS A4/CABRIOLET; TT; A3; A8; A6; S4; ALLROAD; RS4; Q7; S6; S8. *PE
TSB-00-10-022011-02-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. AUDI: SOFTWARE VERSION MANAGEMENT (SVM) OPERATING INSTRUCTIONS. DETAILING THE GENERAL PROCESS FOR CARRYING OUT A SOFTWARE VERSION MANAGEMENT (SVM) SOFTWARE UPDATE FOR ANY TSB OR REQUIRED VEHICLE UPDATE (RVU). TROUBLESHOOTING INFORMATION IS INCLUDED. *PE
TSB-28F2-REV 72011-01-20. Service bulletin. ELECTRICAL SYSTEM:IGNITION. AUDI: GASOLINE ENGINE VEHICLES INSPECT, AND IF NECESSARY, REPLACE IGNITION COILS. VEHICLES AFFECTED BY THIS ACTION MAY HAVE IGNITION COILS THAT COULD MALFUNCTION UNDER CERTAIN CONDITIONS. (ADDED PHASE 7-APRIL 10 VIN INFORMATION).MALFUNCTION INDICATOR LAMP (MIL) WILL ILLUMINATE TO LET YOU KNOW VEHICLE MAY EXPERIENCE SOME DETERIORATION IN PERFORMANCE. SOME CASES, A MALFUNCTIONING IGNITION COIL MAY CAUSE VEHICLE TO EXCEED FEDERAL AND/OR CALIFORNIA EMISSIONS STANDARDS. *PE
SA-28F2 J12010-07-26. Service bulletin. ELECTRICAL SYSTEM:IGNITION; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. AUDI: (REVISED) VEHICLES AFFECTED BY THIS ACTION MAY HAVE IGNITION COILS THAT COULD MALFUNCTION UNDER CERTAIN CONDITIONS. IF THIS HAPPENS, THE MALFUNCTION INDICATOR LAMP (MIL) WILL ILLUMINATE TO LET YOU KNOW THAT THE VEHICLE MAY EXPERIENCE SOME DETERIORATION IN PERFORMANCE. IN SOME CASES, A MALFUNCTIONING IGNITION COIL MAY CAUSE A VEHICLE TO EXCEED FEDERAL AND/OR CALIFORNIA EMISSIONS STANDARDS. *PE UPDATED 8/9/10. *PE UPDATED 8/11/10. *PE UPDATED 11/8/10. *PE UPDATED 11/10/10. *PE UPDATED 1/10/11. *PE
TSB-24-08-042010-05-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; FUEL SYSTEM, OTHER. AUDI: MIL ON (MASS AIRFLOW SENSOR DTCS P0101, P0102, P0103, P0112, P0113 IN ECM). ENGINE HAS LOW PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. MODELS S4, S4 CABRIOLET, ALLROAD, RS6, & R8. *PE
TSB-24-09-162010-03-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: MIL ON (MASS AIRFLOW SENSOR DTCS P0101, P0102, P0103, P0112, P0113 IN ECM). ENGINE HAS LOW PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. DTCS RELATED TO THE MASS AIR FLOW SENSOR AND FUEL TRIM FAULTS CAN BE RELATED TO (BUT NOT LIMITED TO) THE FOLLOWING CONDITIONS-FALSE INTAKE AIR, OR AIR FILTER ELEMENT VERY DIRTY; FUEL PRESSURE TOO LOW AND MASS AIR FLOW SENSOR FAULT. MODELS INCLUDE ALLROAD 2004-2005. *PE
TSB-01-09-062010-03-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. AUDI: SOFTWARE VERSION MANAGEMENT (SVM), OPERATING INSTRUCTIONS. SVM IS A PROCESS TO UPDATE THE PROGRAMMING IN FLASHABLE (RE-PROGRAMMABLE) CONTROL MODULES AND/OR TO DOCUMENT CHANGES IN SOFTWARE LEVELS IN AUDI VEHICLES. THIS SYSTEM USES THE VAS 5051B OR VAS 5052 DIAGNOSTIC TOOLS TO SEND VEHICLE SPECIFIC DATA TO THE SVM DATABASE, TO DOWNLOAD INSTRUCTIONS FROM THE SVM DATABASE, AND TO FLASH CONTROL UNITS FOR IDENTIFIED SOFTWARE UPDATES. *PE
TSB-01-08-332009-05-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. AUDI: SOFTWARE VERSION MANAGEMENT(SVM) OPERATING INSTRUCTIONS. ITS A PROCESS TO UPDATE THE PROGRAMMING IN FLASHABLE (REPROGRAMMABLE) CONTROL MODULES AND/OR TO DOCUMENT CHANGES IN SOFTWARE LEVELS IN ALL AUDI VEHICLES. *PE

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