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Service bulletin SB1627

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 id10169675
Published by NHTSA2020-01-02
Manufacturer's numberSB1627
Manufacturer's date2020-01-02
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

NHTSA's summary

Introduction of a DEF tank filler cap unit with integrated de-aeration valve. Van Hool has switched over to a new type of DEF tank filler cap unit from MY2020 vehicles onwards. The new DEF tank filler cap unit is equipped with an integrated de-aeration valve and prevents tank ventilation problems in case the standard installed tank in-line de-aeration valve is clogged due to DEF crystallization. The new DEF tank filler cap unit fits earlier vehciles and will be supplied as kit 91082547.

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, Equipment and accessories, Fuel system, Fuel tank

Vehicles listed
VAN HOOL CX352020
VAN HOOL CX452020
VAN HOOL TX40
VAN HOOL TX45

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