Mci D4000, Mci D4000istv, Mci D4005, Mci D4500, Mci D4505, model years 2011 to 2016. Filed by Motor Coach Industries and reported to NHTSA on 13 May 2018. 1,123 vehicles potentially affected.
What the notice says 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.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
What owners ask about this recall
- Which vehicles does recall 18V309 cover?
- Mci D4000, Mci D4000Istv, Mci D4005, Mci D4500, Mci D4505, model years 2011-2016.
- What is wrong with them?
- 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.
- What can happen if it is not put right?
- If the pipe develops a hole, during a regeneration cycle, hot exhaust gases may leak out, increasing the risk of a fire.
- Is there a fix yet?
- Yes, and it is free. 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.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “If the pipe develops a hole, during a regeneration cycle, hot exhaust gases may leak out, increasing the risk of a fire.”
affected
in the notice
caught
| Campaign | 18V309 |
|---|---|
| Filed by | Motor Coach Industries |
| System at fault | Engine And Engine Cooling:Exhaust System:Manifold/Header/Muffler/Tail Pipe |
| Reported to NHTSA | 13 May 2018 |
| Model years | 2011-2016 |
| Vehicles named | MCI D4000, MCI D4000ISTV, MCI D4005, MCI D4500, MCI D4505 |
What the notice says today
The consequence
If the pipe develops a hole, during a regeneration cycle, hot exhaust gases may leak out, increasing the risk of a fire.
The remedy
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.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 588 notices in the record whose component field names engine and engine cooling. Across that group the median wait before owners were written to was 47 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
- Mci D4000 recalls: 20 US campaigns
- Mci D4000istv recalls: 10 US campaigns
- Mci D4005 recalls: 18 US campaigns
- Mci D4500 recalls: 27 US campaigns
- Mci D4505 recalls: 28 US campaigns
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 18V309, wording as read on 16 September 2026. https://carsmultiverse.com/recall/18v309/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Mci notices we hold
- 25V853: 102DL3, 102D3, MC12PTV, E4500, D4000, 102D3ISTV, D4500, J4500, D4000ISTV, D4005, D4505, and J3500 transit buses
- 25V632: 2024 D45CRTE, D45CRTELE, and 2025 J4500E coaches
- 25V567: 2020-2021 J4500E, 2021 D45CRTELE, 2023 J4500E, 2023-2024 D45CRTELE, 2024 D45CRTE, and 2025 J4500E buses
- 25V457: 2025 D4520, D45CRTLE, D45CRT, J3500, and 2025-2026 J4500 buses
- 24V625: 2021 D45CRTeLE
- 24V073: 2014-2018 D4000, 2013-2019 D4005, 2013-2023 D4500, 2013-2020 D4505, and 2021-2024 D45CRT coaches equipped with a Ricon wheelchair lift
- 23V240: 2019-2021 D45CRTLE, J3500, and J4500 coaches, equipped with a rear-mounted bike rack
- 21V971: 2019-2022 D4000 ISTV, D4500, 2021 D4000, D4520, 2020-2021 D4505, D4005, 2020-2022 D45CRTLE, and 2019-2021 J4500
All 51 Mci campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 18V309 on 23 August 2026, they were:
- Defect summary
190192a5 - Consequence
dc0a15b3 - Remedy
e9e32d82
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 18V309 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Mci D4000istv, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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