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Service bulletins for the 2004 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.

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

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

Bulletins, newest first
TSB-28-10-042010-11-05. Service bulletin. ELECTRICAL SYSTEM:IGNITION. AUDI: FOR INTERIM CLAIMS FOR 28F2/J1 VEHICLES CAMPAIGN ONLY. APPLICABLE VEHICLES MUST FALL WITHIN VIN RANGES NOTED. ENGINES 2.8L ARE NOT AFFECTED IN THIS SCOPE. COILS OF SCREW DOWN DESIGN (NON PENCIL TYPE) ARE ALSO NOT AFFECTED. THE MIL IS FLASHING OR CONSTANTLY ILLUMINATED. DTCS FOR MISFIRE IN ONE OR MORE CYLINDERS ARE STORED IN THE ECM DATA MEMORY (P0300 TO 0312). *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-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
9407112007-08-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. HEADLIGHT RANGE CONTROL WARNING LIGHT ON. HEADLIGHTS ARE FUNCTIONING PROPERLY. *KB
9407102007-08-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. DYNAMIC HEADLIGHT RANGE CONTROL, WARNING LIGHT IS ON IN THE INSTRUMENT PANEL CENTER DISPLAY. *KB
05012005-12-19. Service bulletin. ELECTRICAL SYSTEM. LIGHT SENSOR WARNING LIGHT ON INTERMITTENTLY AND CUSTOMER CONCERN ABOUT AUTOMATIC HEADLIGHT INSTRUMENT CLUSTER WARNING LIGHT ILLUMINATING FOR 1 SECOND ACCOMPANIED WITH A SHORT BEEP. *TT
04012004-11-02. Service bulletin. ELECTRICAL SYSTEM. TIPTRONIC SWITCH F189, PRINTED CIRCUIT BOARD FAILURE. SELECTOR LEVER INDICATOR (PRNDL) LIGHT FULLY ILLUMINATED; TIPTRONIC FEATURE DOES NOT FUNCTION; 18152 TIPTRONIC SWITCH (F189) SHORT CIRCUIT TO GROUND. *TT
04052004-08-31. Service bulletin. ELECTRICAL SYSTEM. UPDATE PROGRAMMING (FLASHING) TRANSMISSION CONTROL MODULE (TCM). *MJ

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