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Service bulletins for the 2003 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.

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

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Bulletins, newest first
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
TSB-01-12-392012-04-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM. AUDI: ENGINE HAS REDUCED ENGINE PERFORMANCE WITHOUT LOSS OF POWER OR STALLING; CIRCUIT GROUNDS; FUEL QUALITY POOR; MIL IS CONSTANTLY ILLUMINATED OR FLASHING; ROUGH IDLE; IGNITION COILS INCORRECTLY INSTALLED; ELECTRICAL CONNECTIONS LOOSE OR DAMAGED. *PE
TSB-15-11-182011-06-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: THERE IS A TICKING NOISE FROM THE ENGINE AREA WHICH MAY BE CAUSED BY WEAR IN THE CAMSHAFT. *RM
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-94-10-382011-02-16. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. AUDI: DAYTIME RUNNING LIGHTS DO NOT WORK. DAYTIME RUNNING LIGHTS DO NOT WORK ON VEHICLES WITH XENON HEADLIGHTS. THE THUMB WHEEL OR OPTION FOR DAYTIME RUNNING LIGHTS IS TURNED OFF BY MISTAKE. *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
TSB-28F22011-01-20. Service bulletin. ELECTRICAL SYSTEM:IGNITION; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. AUDI: EMISSIONS SERVICE ACTION CIRCULAR. 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. THE MALFUNCTION INDICATOR LAMP (MIL) WILL ILLUMINATE TO LET YOU KNOW THAT THE VEHICLE MAY EXPERIENCE SOME DETERIORATION IN PERFORMANCE. *PE
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-38-09-012010-03-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL); STEERING:GEAR BOX (OTHER THAN RACK AND PINION). AUDI: VEHICLE WILL NOT MOVE IN ANY GEAR. ATF PUMP BORDER BUSHING MAY FAIL AND CAUSE A LOSS OF OIL PRESSURE. THE ATF PUMP IS INCORPORATED IN THE VALVE BODY. THE PUMP IS NOT A SERVICEABLE PART. IMPROVED ATF PUMP INCORPORATED IN THE VALVE BODY FROM 1/04 VEHICLE PRODUCTION. *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-17-07-122010-02-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; UNKNOWN OR OTHER. AUDI: ENGINE OIL PRESSURE IS BELOW SPECIFIED VALUE. OIL PRESSURE WARNING LIGHT MIGHT BE ILLUMINATED OR ILLUMINATED INTERMITTENTLY. REPAIRS INCLUDE REPLACING THE OIL PUMP MODULE. *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
TSB-44-08-142009-02-21. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS. AUDI: WHEEL BOLTS REQUIRE TORQUE ADJUSTMENT. TORQUE STICKS AND TORQUE EXTENSION BARS ARE NOT APPROVED BY AUDI OF AMERICA, INC. AND SHOULD NOT BE USED TO APPLY TORQUE TO WHEEL BOLTS. ALL AUDI MODELS INCLUDED. *PE
15D4/JZ2008-12-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INTERNAL ENGINE DAMAGE RESULTING FROM A BROKEN TIMING BELT. IF TIMING BELT OF VEHICLE WERE TO BREAK, THE ENGINE WILL NOT RUN AND MAY SUSTAIN SERIOUS INTERNAL DAMAGE. CSC LETTER WAS RECEIVED. *PE
15-D-4-JZ2008-11-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. AUDI: THE INTERNAL ENGINE DAMAGE RESULTING FROM A BROKEN TIMING BELT. IF THE TIMING BELT OF VEHICLE WERE TO BREAK, THE ENGINE WILL NOT RUN AND MAY SUSTAIN SERIOUS INTERNAL DAMAGE. *PE
1015082008-10-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CSC LETTER WAS RECEIVED FOR AUDI MODEL YEARS 2000-2003 A4 AND TT. REVISED MAINTENANCE INSTRUCTIONS AND A WARRANTY EXTENSION COVERING CERTAIN TIMING BELT TENSIONER SYSTEM RELATED REPAIRS. *PE
2012749-22008-09-03. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:CONCEALMENT DEVICES; EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:BACK UP LIGHTS; EXTERIOR LIGHTING:FOG LIGHTS; EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:BRAKE LIGHTS. EXTERIOR LIGHTS, MOSITURE ACCUMULATION. *PE
AWA-08-032008-07-28. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. AUDI SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ENGINE COOLANT TEMPERATURE SENSOR WARRANTY EXTENSION FOR CERTAIN 2001-2004 AUDI MODEL YEAR VEHICLES. CSC WAS RECEIVED *PE
AWA-08-042008-07-09. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE COOLANT TEMPERATURE SENSOR WARRANTY EXTENSION FOR CERTAIN 2001-2004 MODEL YEAR AUDI VEHICLES. *PE
17 08 032008-04-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL PRESSURE TOO LOW - ENGINE FLUSH. *NJ UPDATED 4/30/08. *NJ
9407112007-08-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. HEADLIGHT RANGE CONTROL WARNING LIGHT ON. HEADLIGHTS ARE FUNCTIONING PROPERLY. *KB
3707102007-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. MIL ON, AND/OR MULTITRONIC TRANSMISSION IN EMERGENCY RUNNING MODE (DTC P0706 OR P1793 IN TCM). *KB

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