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Service bulletins for the 2000 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.

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

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Bulletins, newest first
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
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
200365822007-07-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOSES POWER OR WILL NOT MOVE AFTER STOP. *KB
200562432007-07-06. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. HEADLIGHT AIMING, USING HELLA UNIVERSAL BEAMSETTER. *KB
20128332007-04-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL PRESSURE TOO LOW - ENGINE FLUSH. *KB
06042007-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL SLUDGE LIMITED WARRANTY EXTENSION. *KB
04312005-09-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REPAIRS OF OIL SLUDGE RELATED PROBLEMS. *TT
112420042005-09-12. Service bulletin. SUSPENSION:FRONT:CONTROL ARM:LOWER ARM. SERVICE ACTION JE CAMPAIGN-CHECK/REPLACE FRONT SUSPENSION LOWER CONTROL ARMS. AUDI HAS FOUND THAT IN RARE CASES, ONE OR BOTH FRONT SUSPENSION LOWER CONTROL ARMS ON AFFECTED VEHICLES CAN EXHIBIT WEAR, EVEN THOUGH THE DAMAGE TO THE RUBBER BOOTS IS NOT OBVIOUS. *SC
05042005-08-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. THREE WAY CATALYST, CATALYTIC EFFICIENCY DIAGNOSTIC TROUBLE CODES (DTCS) STORED IN DTC MEMORY. *TT
04022005-08-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL SPECIFICATIONS, OIL CAPACITY, OIL FILTER. TO INCLUDE AUDI 24 2006. *TT
05022005-07-29. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. UPDATE PROGRAMMING FOR CATALYTIC CONVERTER SYSTEM (IC). *TT UPDATE. *TT
04062005-02-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. COOLANT LEAK AT OIL COOLER HOSES. *TT
JE2005-01-29. Service bulletin. SUSPENSION:FRONT:CONTROL ARM:LOWER ARM. CHECK/REPLACE REPLACE FRONT SUSPENSION LOWER CONTROL ARMS. *TC
04202004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. WARRANTY EXTENSION COVERING CERTAIN OIL SLUDGE RELATED REPAIRS. *TT
04032004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOW ENGINE OIL PRESSURE LIGHT IS ON. AUDI CABRIOLET 2004 INCLUDED. *TT
04012004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL SPECIFICATIONS, OIL CAPACITY, OIL FILTER. *TT THIS BULLETIN REPLACES BULLETIN 04-01 DATED JAN. 12, 2004. 2004 CABRIOLET, AUDI INCLUDED. *TT
04022004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VALVE COVER, DIAGNOSING OIL LEAKAGE FROM GASKETS. *TT
04202004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL SLUDGE - WARRANTY EXTENSION. SERVICE CIRCULAR - WARRANTY. *TT
04082004-10-19. Service bulletin. FUEL SYSTEM, OTHER. LONG TERM FUEL TRIM - SYSTEM TOO RICH. DIAGNOSTIC TROUBLE CODE P1123, P1125, P1137 AND P1139. *TT
04012004-07-21. Service bulletin. ELECTRICAL SYSTEM. THROTTLE VALVE CONTROL MODULE - J338-, WILL NOT ADAPT. *MJ
0926032004-05-15. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:PUMP. ZF VH RECALL OF THE ZF STEERING PUMP, SUPPLIED TO WD'S FOR REPLACEMENT OF THE AUDI A4 PASSAT P/N 8D0 145 156FX INSTEAD OF THE CORRECT ZF P/N 7691 955 276ZW. 2004 AUDI A4 ALSO INCLUDED. *TT
1501022001-09-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. A CONDITION MAY EXIST WHERE THE ENGINE CRANKS BUT WILL NOT START. *TT
112001-09-25. Service bulletin. ELECTRICAL SYSTEM. THIS TECHNICAL REPAIR MANUAL CONTAINS THE ELECTRICAL WIRING DIAGRAMS, TROUBLESHOOTING AND COMPLENT LOCATIONS. *TT

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