Service bulletin SB 402

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.

NHTSA's summary

This Service Bulletin informs affected customers that the incorrect diesel exhaust fluid (DEF) nozzle supply hose and metering unit fitting was utilized on model year 2012-2013 MCI J4500 model coaches equipped with a DD13 2010 EPA engine which could result in leaking DEF, the check engine tell-tale light illuminating on the instrument panel and if not addressed, the coach will initiate the engine shutdown sequence, and that MCI will remedy the affected coaches at no cost to the customers.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

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

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