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ALEXANDER DENNIS ENVIRO 400 H — recall

Automotive · United Kingdom · 2025-11-05

ALEXANDER DENNIS ENVIRO 400 H was recalled in United Kingdom on 2025-11-05. On vehicles with the affected engine the piston crown may develop a crack creating elevated crankcase pressure leading to a fracture of the valve cover. A fractured valve cover may allow oil to escape and in the presence of an ignition source increases the ri…

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CountryUnited Kingdom
CategoryAutomotive
Published2025-11-05
ManufacturerALEXANDER DENNIS
Models affectedENVIRO 400 H
Units affected401
DefectOn vehicles with the affected engine the piston crown may develop a crack creating elevated crankcase pressure leading to a fracture of the valve cover. A fractured valve cover may allow oil to escape and in the presence of an ignition source increases the risk of a fire.
RemedyInstall a crankcase pressure sensor and a pressure relief valve.
Recall numberR/2025/419
Official noticeView source ↗

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