AI Damage2018 MCI D4000: common problems
The maker issued 13 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 13
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 7 |
| Equipment | 0 | 0 | 6 |
| Engine | 0 | 0 | 2 |
| Service brakes | 0 | 0 | 2 |
| Engine and cooling | 0 | 0 | 1 |
| Seats | 0 | 0 | 1 |
| Other | 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.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
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 bulletin introduces an optional product improvement to the A/C compressor drive system for coaches…
This bulletin introduces an optional product improvement to the A/C compressor drive system for coaches equipped with a Cummins X12. The improved pulley system is available for customers who wish to reduce noise and…
- Information to owners showing the proper procedure for checking the oil level in a BITZER HVAC compressor
- Technical Service Information Bulletin describing the replacement of seating backrest attachment hardware…
Technical Service Information Bulletin describing the replacement of seating backrest attachment hardware with the addition of a mechanical lock nut on specifically equipped buses manufactured prior to model year 2020.
- This Technical Instruction is a description of the inspections and cleaning procedures being recommended…
This Technical Instruction is a description of the inspections and cleaning procedures being recommended by MCI due to the parts shortages which are impacting the repair inspections associated with NHTSA Recall…
- This Instruction to Service (ITS) is a description of the inspections being recommedned by MCI due to the…
This Instruction to Service (ITS) is a description of the inspections being recommedned by MCI due to the parts shortages which are impacting the repair instructions associated with NHTSA Recall 21V-748. These are the…
- This is an upgrade to Technical Service Information Bulletin TSIB 21-10 issued in January of 2022 which is…
This is an upgrade to Technical Service Information Bulletin TSIB 21-10 issued in January of 2022 which is specific to buses operating in severe duty and or corrosive environments. These bulletins have been issued to…
- This Technical Service Information Bulletin describes interim inspection procedures required every 6000…
This Technical Service Information Bulletin describes interim inspection procedures required every 6000 miles on specific motor coaches due to the global parts shortage and subsequent delay in available parts to…
- This Technical Service Information Bulletin (TSIB) describes an update from Meritor for the bolt torque…
This Technical Service Information Bulletin (TSIB) describes an update from Meritor for the bolt torque application requirements on hub-to-rotor bolts for the front, drive and tag axles, on specific coaches equipped…
- This Technical Sevice Information Bulletion is to advise of a part number supersession of the coolant hump…
This Technical Sevice Information Bulletion is to advise of a part number supersession of the coolant hump hose, MCI PN 6L-8-353, to MCI PN 06-08-2262.
- This Service Bulletin informs affected owners of the steps to install the J1939 Smartwave display to D…
This Service Bulletin informs affected owners of the steps to install the J1939 Smartwave display to D series coaches with Parker mux to allow parameter changes without the Smartwave software.
- This Service Bulletin provides a checklist of actions to perform on a daily, weekly and monthly basis for…
This Service Bulletin provides a checklist of actions to perform on a daily, weekly and monthly basis for parked coaches before they are considered ready for driving.
NHTSA lists 13 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 MCI D4000?
There are no owner complaints in the NHTSA data for this year; the data comes from 13 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 MCI D4000?
NHTSA lists 13 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 2018 MCI D4000 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 2018 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.