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Service bulletin 304

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10006536
Published by NHTSA2004-05-05
Manufacturer's number304
Manufacturer's date2004-03-26
NHTSA componentFUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP

NHTSA's summary

GROUND CONNECTION BETWEEN THE THREAD OF THE FUEL TANK FILLER NECK AND THE CONNECTING PIPE TO THE FUEL TANK IS NOT SOUND. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Fuel system, Fuel tank

Vehicles listed
PORSCHE CAYENNE S2003 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO2003 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
04V0680002004-02-18. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
20052004-12-04. Service bulletin. ALUMINUM LOOK FUEL CAP. *TT
3042004-06-04. Service bulletin. CHECKING AND, IF NECESSARY, REPLACING THE FUEL TANK. ATTACHMENT B, WORK PROCEDURE FOR A304. *TT