Service bulletins for the 2001 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.
105 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 0420 | 2004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL SLUDGE - WARRANTY EXTENSION. SERVICE CIRCULAR - WARRANTY. *TT |
|---|---|
| 0408 | 2004-10-19. Service bulletin. FUEL SYSTEM, OTHER. LONG TERM FUEL TRIM - SYSTEM TOO RICH. DIAGNOSTIC TROUBLE CODE P1123, P1125, P1137 AND P1139. *TT |
| 0401 | 2004-07-21. Service bulletin. ELECTRICAL SYSTEM. THROTTLE VALVE CONTROL MODULE - J338-, WILL NOT ADAPT. *MJ |
| 092603 | 2004-05-15. 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 |
| 550101 | 2002-02-05. Service bulletin. STRUCTURE:BODY:TRUNK LID. SUBJECT REGARDING REAR LID, LUBRICATING HINGES TO ALLEVIATE STIFFNESS. *JG |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.