Exhaust bellow pipes may leak exhaust
Defect Summary
Motor coach industries (mci) is recalling certain 2011-2016 d4500, d4505, d4000, d4005, and d4000 istv motor coaches equipped with isx engines. due to vibrations, the exhaust bellow pipes develop a hole.
Safety Consequence
If the pipe develops a hole, during a regeneration cycle, hot exhaust gases may leak out, increasing the risk of a fire.
Corrective Action
Mci will notify owners, and dealers will replace the bellows pipe assembly with an improved part, free of charge. the recall began july 10, 2018. owners may contact mci customer service at 1-800-241-2947.
Similar Recalls
Other recalls from Motor Coach Industries, Inc or involving Engine And Engine Cooling.
FAQ: Recall 18V309000
Your rights, the repair process, and what each field on this page means.
What is recall 18V309000?
NHTSA recall 18V309000 was issued by Motor Coach Industries, Inc on May 13, 2018. It addresses: Exhaust bellow pipes may leak exhaust. The recall affects approximately 1,123 vehicles, with the defect involving the Engine And Engine Cooling component.
How do I get this recall repaired?
Contact any authorized Motor Coach Industries, Inc dealer and reference NHTSA recall ID 18V309000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.