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Service bulletin 20470421

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 id10110879
Published by NHTSA2017-08-10
Manufacturer's number20470421
Manufacturer's date2017-03-09
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Bentayga - Secondary Air Injection Update_LEV3_USA (ASW 09.09) (SC17/03)

The document

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

Vehicles listed
BENTLEY BENTAYGA2017

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
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