Volkswagen Passat 1998–2004 — technical service bulletin
Bulletin 0403 · NHTSA communication 10010539 · issued Oct 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998–2004
model years
7
vehicle entries
Official summary
Valve cover, diagnosing oil leakage from gaskets. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.