2012–2016 MCI D4000, 2012–2015 MCI D4000ISTV, 2012–2016 MCI D4005 and 2 other models Recall: Due to vibrations, the exhaust bellow pipes develop a hole
NHTSA campaign 18V309000 · Engine and Engine Cooling · filed May 13, 2018 · verified Jul 30, 2026
The defect
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.
The risk
If the pipe develops a hole, during a regeneration cycle, hot exhaust gases may leak out, increasing the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
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.
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.safercar.gov.
Affected vehicles
Related recalls
More MCI D4000 recalls
- 1988–2001 MCI 102D3 and 11 other models — Please refer to MCI's recall report for specific model year…
- 2014–2018 MCI D4000 and 4 other models — Red beacon lighting on the Threshold Warning System (TWS)…
- 2021 MCI D4000 and 7 other models — Fuel tubes between the fuel rail and the injectors for…
- 2018 MCI D4000 and 8 other models — Main Distribution Panel (MDP) located within the battery…
- 2017–2018 MCI D4000 and 7 other models — Sealing washer may not seat correctly in the pilot bore…
Other campaigns involving MCI vehicles
Source: NHTSA recall database, campaign 18V309000. Data last verified Jul 30, 2026.