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Service bulletins for the 2004 Volkswagen Passat

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
0042005-01-27. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE COOLANT TEMPERATURE (ECT) SENSOR. *TC
04032004-12-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VALVE COVER, DIAGNOSING OIL LEAKAGE FROM GASKETS. *TT
04192004-12-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. UPDATE PROGRAMMING - EVAPORATIVE EMISSIONS (EVAP) SELF-TEST REVISION. *TT
04022004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOW ENGINE OIL PRESSURE LIGHT IS ON. *TT
04012004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL SPECIFICATIONS, OIL CAPACITY, OIL FILTER. *TT
04212004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL SLUDGE - WARRANTY EXTENSION FOR 1998-2004 MODEL YEAR VOLKSWAGEN PASSAT WITH 1.8L TURBO ENGINE US AND CANADIAN DEALERS. SERVICE CIRCULAR. *TT
04212004-11-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. WARRANTY EXTENSION COVERING CERTAIN OIL SLUDGE RELATED REPAIRS. *TT
04032004-08-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE, FLUCTUATING IDLE OR IDLE SPEED TOO LOW. *MJ
04092004-07-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. EVALUATING FUEL MIXTURE DIAGNOSTIC TROUBLE CODES- HOW TO PERFORM EFFECTIVE DIAGNOSIS RELATED TO FUEL SYSTEM ADAPTATION - SYSTEM TOO RICH/TOO LEAN. VOLKSWAGEN. *MJ
04062004-05-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. READINESS CODE, SETTING. *TT

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