WenmarOpen by Wenmar Pro

Service bulletin B04

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 id602213
Published by NHTSA1998-10-15
Manufacturer's numberB04
Manufacturer's date1998-05-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

INFORMATION ON THE CARBON CUTTER EXHAUST VALVE-SUPERCHARGED ENGINES FOR VEHICLES WITHIN VIN RANGE 720001 THROUGH 812255. *YC

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

Vehicles listed
JAGUAR XJR1995, 1996, 1997

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

Other bulletins for the same vehicles and component
9703.1101999-07-22. Service bulletin. SOME VEHICLES MAY EXPERIENCE INTERMITTENT POOR IDLE CAUSED BY CARBON DEPOSITS ON EXHAUST VALVES. *TT