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Alexander Dennis Enviro 500 Recall 21V468: Fuel Rail Leak Can Cause Engine Bay Fire

NHTSA campaign 21V468, reported June 23, 2021, 310 vehicles potentially affected.

What this recall means for you

The sealing washer on the high-pressure fuel rail may not seat correctly in the pilot bore holes, which can allow diesel fuel to leak from the rail assembly.

A fuel leak near an ignition source raises the risk of a fire. Owners of affected buses should take this recall seriously and arrange a repair as soon as possible.

Authorized dealers will inspect the fuel rail threads and fuel lines and replace the fuel rail if needed, at no cost to you. Owner notification letters were mailed June 18, 2021. You can also contact Alexander Dennis customer service at 1-951-244-9429, and check your vehicle identification number for any open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V468Alexander Dennis Inc.
Component
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
Problem
Alexander Dennis, Inc. (Alexander Dennis) is recalling certain 2017-2020 E500 buses. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
Risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed June 18, 2021. Owners may contact Alexander Dennis customer service at 1-951-244-9429.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Affected vehicles

Alexander Dennis Enviro 5002017201820192020