2021 MCI D4520 — Problems, Recalls & Safety Data
N/A
Safety Rating
0
Owner Complaints
1
Recall
3
Service Bulletins
0
Investigations
Overview of the 2021 MCI D4520
The 2021 MCI D4520 has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 3 recall campaigns affecting this vehicle, covering issues with FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL. 3 technical service bulletins have been issued by Motor Coach Industries for this model year.
Recalls for the 2021 MCI D4520
NHTSA has recorded 3 recalls for the 2021 MCI D4520, potentially affecting up to 3,375 vehicles.
Recall 21V971000 — FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
| 1,125 vehicles affected
Defect: Motor Coach Industries (MCI) is recalling certain 2019-2022 D4000 ISTV, D4500, 2021 D4000, D4520, 2020-2021 D4505, D4005, 2020-2022 D45CRTLE, and 2019-2021 J4500 vehicles equipped with certain Cummins X12 diesel engines. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
Consequence: A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy: On engines with 75 miles or less, Cummins dealers will install vibration isolators to the fuel tubes. Engines with more than 75 miles will receive new fuel tubes with vibration isolators. Repairs will be performed free of charge. Owner notification...
View full details →Recall 21V971000 — FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
| 1,125 vehicles affected
Defect: Motor Coach Industries (MCI) is recalling certain 2019-2022 D4000 ISTV, D4500, 2021 D4000, D4520, 2020-2021 D4505, D4005, 2020-2022 D45CRTLE, and 2019-2021 J4500 vehicles equipped with certain Cummins X12 diesel engines. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
Consequence: A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy: On engines with 75 miles or less, Cummins dealers will install vibration isolators to the fuel tubes. Engines with more than 75 miles will receive new fuel tubes with vibration isolators. Repairs will be performed free of charge. Owner notification...
View full details →Recall 21V971000 — FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
| 1,125 vehicles affected
Defect: Motor Coach Industries (MCI) is recalling certain 2019-2022 D4000 ISTV, D4500, 2021 D4000, D4520, 2020-2021 D4505, D4005, 2020-2022 D45CRTLE, and 2019-2021 J4500 vehicles equipped with certain Cummins X12 diesel engines. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
Consequence: A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy: On engines with 75 miles or less, Cummins dealers will install vibration isolators to the fuel tubes. Engines with more than 75 miles will receive new fuel tubes with vibration isolators. Repairs will be performed free of charge. Owner notification...
View full details →Owner Complaints for the 2021 MCI D4520
No complaints have been filed with NHTSA for the 2021 MCI D4520.
Safety Rating for the 2021 MCI D4520
NHTSA has not yet tested the 2021 MCI D4520 in its New Car Assessment Program.
Technical Service Bulletins for the 2021 MCI D4520
Motor Coach Industries has issued 3 technical service bulletins (TSBs) for the 2021 MCI D4520. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
ITS61012 — STRUCTURE:BODY
Service instruction for updating plug doors to improve reliability and reduce wind noise.
ITS60634 — LATCHES/LOCKS/LINKAGES
Instructions to properly adjust entrance door to ensure proper operation.
ITS60634 — STRUCTURE
Instructions to properly adjust entrance door to ensure proper operation.
NHTSA Investigations for the 2021 MCI D4520
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MCI D4520
- 2020 MCI D4520 — 0 complaints
- 2021 MCI D4520 (current)
- 2022 MCI D4520 — 0 complaints
- 2025 MCI D4520 — 0 complaints
Other MCI Models
- MCI 102D3 — 10 total complaints
- MCI J4500 — 4 total complaints
- MCI 102DL3 — 2 total complaints
- MCI D4500 — 2 total complaints
- MCI E4500 — 2 total complaints
- MCI MC12 — 2 total complaints
- MCI D4500/102DL3 — 1 total complaint
- MCI D4505 — 1 total complaint