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2001-2026 · 23 model years

Mci J4500 Problems by year

Owners have filed 3 complaints about the Mci J4500 across 23 model years, and it has 47 recalls. The 2003 has the most complaints once its age is allowed for (1). The most reported problem area is the body, doors & structure, followed by the engine & cooling.

Share your J4500 experienceCompare years47 recalls
Most complaints for its age20031 complaint · 9 recallsSee the 2003
Complaints
3
Recalls
47
Crashes
1
Fires
0
Injuries
0
Deaths
0

J4500 complaints by model year

Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.

YearComplaintsRecallsCrashesFiresTop problemGrade
20260100-C
20250100-B
20210500-C
20200900-D
201901200-D
201801300-D
20170800-C
20160700-C
201501000-C
201401000-C
20130700-C
20121700Engine & coolingC
201101300-D
201001100-C
200901100-C
200801000-C
20071810Transmission & drivetrainC
20060800-C
20050900-C
20040800-C
20031900Body, doors & structureC
20020700-C
20010800-C

Most common J4500 problems

Mci J4500 recalls 47

Latest J4500 complaints

2003 Mci J4500Body, doors & structure

Coach side glass is bowing (changing shape) and de-bonding. All glass on coach says "si-gi", which is the defective glass subject to a recall (nhtsa recall #10v373000). Contacted mci in 2015 after 1 of the pieces of glass actually almost fell out. Mfgr refuses to honor warranty because they shipped replacement glass to the previous vehicle owner for them to install themselves. Defective si-gi glass still in the coach. Mfgr practice of shipping replacement glass to owners is a very bad idea. Mfgr does not actually...

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verify that the work was completed. I'm sure 95% of owners never get around to installing it or just keep the glass as spares, so the recall is actually never completed. As temporary fix, we re-bonded the glass that was coming de-bonded, but it is becoming de-bonded again, since glass on the bus has bowed. We want mfgr to honor the recall, as it was never done, and glass is very bad.

Filed Incident Structure · Unknown or otherNHTSA 10981434
2007 Mci J4500Transmission & drivetrainCrash

As I was trying to ease my way past another vehicle by using lite accelerator pressure to activate automatic clutch, the clutch suddenly engaged causing the bus to lurch forward. In doing so the spot mirror on the right side struck the back of the vehicle sitting next to me breaking the glass. This bus is equipped with a zf 12 speed transmission which I think is the problem. When moving in slow traffic the clutch kicks in and out automaticly when ever it feels like it. Several times it failed to kick out...

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causing the bust to continue to move forward while foot was off throttle pedal. I nearly rear ended vehicles in front of me on several occasions. The other problem with this transmission is the slow response when begining to move. The automatic clutch needs to engage before bus will move. Many times this takes some time to happen making it necessary to hold up traffic before you have enough time to make your move. It also bogs down during the several shifts it makes which in itself could cause the car behind you to run into the back of the bus. I feel this transmission option is very dangerous when used in slow traffic situations. *Js

Filed Incident Power trainNHTSA 10592234
2012 Mci J4500Engine & cooling

This problem exists on at least 4 out of 10, mci motor-coaches manufactured from 2006 to 2013. The problem has not been reported nor investigated because it remains un-detected during routine maintenance, computer diagnostics or by any company mechanics. The issue only becomes apparent after several hours of continuous driving a (minimum of 400 miles ) mci passenger motor-coach. No facility or mechanic will drive the vehicle for the extended amount of time to detect the problem. There is also no...

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equipment/monitor available to monitor or evaluate the air quality in the driver cabin area. The driver area begins to smell of antifreeze vapors/toxic fumes that have escaped into the driver cockpit. There is no obvious leaks of any coolant/antifreeze in the driver area and the driver ac/heater core appears to have no leaks yet the toxic fumes/vapors are seeping into the driver cabin. The drivers are forced to cope with continuous exposure of the dangerous fumes/vapors that not only affect the entire environment and air quality but the health of the driver and possibly the general public/passengers. *Tr

Filed Incident Engine and engine coolingNHTSA 10514462

Questions about the Mci J4500

Which Mci J4500 years have the most problems?

By the number of complaints owners filed with NHTSA: 2003 (1), 2007 (1), 2012 (1). Allowing for how long each has been on the road, the 2003 stands out most. Complaint counts also rise with sales, so compare years of the same model rather than different models.

What are the most common Mci J4500 problems?

Across every model year, owners report problems with the body, doors & structure (1), engine & cooling (1), transmission & drivetrain (1) most often.

How many recalls does the Mci J4500 have?

NHTSA lists 47 recalls across all Mci J4500 model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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