Thomas Built · Canada · Crit
Thomas Built HDX School Bus, Mvp-Ef School Bus +1 more: Heater and Defroster
Affects Thomas Built HDX School Bus, Mvp-Ef School Bus, FS65 School Bus · 2001–2004 — about 120 vehicles.
The hazard
On certain vehicles, burner tubes in the Webasto DBW 2010 Scholastic coolant heater may begin deteriorating at an accelerated rate and could fail. Burner tube failure could result in an increase in exhaust gas temperature which could ignite combustible material in or around the vehicle. Correction: Dealers will replace the burner tubes.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational