AI Damage2023 MCI J4500E: common problems
The maker issued 9 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 9
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 6 |
| Fuel/propulsion system | 0 | 0 | 5 |
| Service brakes | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This bulletin is to provide instructions for clearing DTC 1067 FMI 7 (Pressure Sensor Not Calibrated) and…
This bulletin is to provide instructions for clearing DTC 1067 FMI 7 (Pressure Sensor Not Calibrated) and FMI 11 (Primary and Secondary Circuit Pressure Sensor (PS1/PS2) Plausibility Error - BS Pressure), when required…
- This TSIB provides information to provide a software update
Some coaches using MCC HVAC Eco-Tempo ECU # 07-10-009 software T35-1581 / V1.04 may be experiencing random fault codes due to MCC software errors.
- This TSIB is to inform customers the recommended steering axle cleaning/greasing instructions to prevent…
This TSIB is to inform customers the recommended steering axle cleaning/greasing instructions to prevent damage on axle components due to displacement of grease from the bearings, lubrication reduction and accelerate…
- Instructions to verify security of interior REI brand monitors on affected coaches
- Instructions to replace the MDS (Main Disconnect Switch) decal from a 1-minute wait with a 5-minute wait…
Instructions to replace the MDS (Main Disconnect Switch) decal from a 1-minute wait with a 5-minute wait time to allow the Battery Management System (BMS) to shut down.
- A consumer notification indicating one of New Flyer's battery suppliers is exiting the market
- This Bulletin is being issued due to New Flyer & MCI have received reports that customers are re-torquing…
This Bulletin is being issued due to New Flyer & MCI have received reports that customers are re-torquing high-voltage (HV) connections during preventative maintenance inspections as outlined in the Preventive…
- Instructions to replace the BTMS coolant filter and filter head due to possible damage from galling
- Instruction to rework low voltage connector to prevent water intrusion and corrosion
Other years of this model
Questions and answers
What are the most common problems with the 2023 MCI J4500E?
There are no owner complaints in the NHTSA data for this year; the data comes from 9 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2023 MCI J4500E?
NHTSA lists 9 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2023 MCI J4500E from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2023 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.