WenmarOpen by Wenmar Pro

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.

By type

By component

By trouble code

By topic

Bulletins, newest first
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
3807042007-06-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. VEHICLE WILL NOT MOVE IN ANY GEAR. *KB
20128332007-04-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL PRESSURE TOO LOW - ENGINE FLUSH. *KB
3807022007-04-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SHUDDERS WHEN ACCELERATING AT 10 TO 50% THROTTLE FROM A STATIONARY POSITION, SOMETIMES WITH FLUCUATING ENGINE SPEED. *KB
090120062007-01-16. Service bulletin. ELECTRICAL SYSTEM:IGNITION. IGNITION COILS MAY FAIL CAUSING A ROUGH IDLE OR REDUCED DRIVING POWER COULD OCCUR. *KB
06042007-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL SLUDGE LIMITED WARRANTY EXTENSION. *KB
06012006-02-13. Service bulletin. POWER TRAIN. VEHICLE SHUDDERS WHEN ACCELERATING AT 10 TO 50% THROTTLE FROM A STATIONARY POSITION, SOMETIMES WITH FLUCTUATING ENGINE SPEED. *TT
05072005-12-22. Service bulletin. ENGINE AND ENGINE COOLING. SPORADICALLY AFTER COLD START, ENGINE MAY RUN SLIGHTLY ROUGH FOR A FEW SECONDS AND THE MALFUNCTION INDICATOR LAMP MAY ILLUMINATE WITH ONLY MISFIRE DIAGNOSTIC TROUBLE CODES (DTC) (P0300, P0301, P0302, P0303, P0304) STORED IN DTC MEMORY. *TT
05262005-12-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTHORIZATION REQUIREMENTS FOR AUTOMATIC TRANSMISSIONS. *TT
05042005-09-22. Service bulletin. AIR BAGS. AIRBAG LAMP ON, UPPER LIMIT OF SIDE AIRBAG EXCEEDED. TO INCLUDE A4 2006. *TT
04312005-09-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. REPAIRS OF OIL SLUDGE RELATED PROBLEMS. *TT
04022005-08-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL SPECIFICATIONS, OIL CAPACITY, OIL FILTER. TO INCLUDE AUDI 24 2006. *TT
1905042005-07-29. Service bulletin. ENGINE AND ENGINE COOLING. THE COOLANT RESERVOIR IS DIAGNOSED TO BE LEAKING AND INTENDED TO BE REPLACED. *TT
05022005-05-19. Service bulletin. ENGINE AND ENGINE COOLING. FUEL INJECTORS UNNECESSARY REPLACEMENT. *EH
05012005-05-19. Service bulletin. ENGINE AND ENGINE COOLING. FUEL INJECTORS UNNECESSARY REPLACEMENT. *EH
05032005-05-19. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. COOLANT LEAK OR ON HEAT IN PASSENGER COMPARTMENT. *EH
05012005-05-19. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. FUEL INJECTORS, UNNECESSARY REPLACEMENT. UPDATE. *TT
4805012005-03-15. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM. POWER STEERING, NOISY. TO INCLUDE 2006 MODELS. *TT
2405012005-03-15. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. FUEL INJECTORS, UNNECESSARY REPLACEMENT. *TT
972005-02-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. FRONT OXYGEN SENSOR BANK1 AND ENGINE WIRING ENGINE. ALSO INCLUDES AUDI CABRIOLET 2004. *TT
04012005-02-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE WIRE HARNESS, HEAT INSULATION INSTALLATION (IA). 2004 AUDI CABRIOLET ALSO INCLUDED. *TT
04062005-02-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. COOLANT LEAK AT OIL COOLER HOSES. *TT
04112005-01-27. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. UPDATE PROGRAMMING ENGINE CONTROL MODULE FLASHING TO CORRECT EVAP PURGE VALVE DTC P0441 IN THE AUDI 2004 CABRIOLET . *TC
3704022005-01-27. Service bulletin. POWER TRAIN. TRANSMISSION SHUDDERS PRIOR TO COMING TO A STOP. *TC

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