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Service bulletin MTB-200914

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 id10029324
Published by NHTSA2009-07-06
Manufacturer's numberMTB-200914
Manufacturer's date2009-04-28
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

NHTSA's summary

MASERATI: QUATTROPORTE DUOSELECT SERVICE CAMPAIGN REGARDING INSTALLATION OF THE RIGHT CATALYTIC CONVERTER HEAT SHIELD. THE INSTALLATION OF THE HEAT SHIELD WILL REDUCE THE HEAT GENERATED FROM THE CATALYTIC CONVERTER TO THE CLUTCH HOUSING AREA AND ALSO HEATING EFFECT IN THE PASSENGER COMPARTMENT. *PE

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

Engine, Exhaust and emissions, Catalytic converter

Vehicles listed
MASERATI QUATTROPORTE2006, 2007
MASERATI QUATTROPORTES2005 (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.