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Monaco CoachModel report

Monaco Coach Diplomat Le Problems by Model Year

NHTSA recorded 5 consumer complaints across the 1 model years of the Monaco Coach Diplomat Le (2001–2001) that have at least 5 complaints. 2001 has the most, with 5. Across all years, the part named most often is steering (3 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.

All Diplomat Le model years

Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.

YearComplaintsMedian miRecallsTSBsScore (50 = typical)Trend
2001523730—Not enough data

Parts named most often, all years

Counts add up complaint mentions across the listed years. A complaint can name several parts.

Example complaints

One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.

2001: “The contact owns a 2001 monaco Diplomat Le. The contact stated that his refrigerator failed to work. He called a local technician to come out and inspect the vehicle and was informed that there was a coolant leak. The technician stated that the failure could be repaired or the contact could purchase a new unit. The contact chose to purchase a new unit; however, the old unit was not removed because it was inoperable. On april 9, 2008, the contact heard a loud explosion followed by a hissing sound and a strong ammonia odor. His grandson noticed a fire in the area of the refrigerator. …”

NHTSA complaint #10224929, filed 2008-04, 31,000 miles

Other Monaco Coach models

Monaco Coach Knight
45 complaints
Monaco Coach Diplomat
30 complaints
Monaco Coach Cayman
29 complaints
Monaco Coach Lapalma
16 complaints
Monaco Coach Windsor
14 complaints
Monaco Coach Monaco
12 complaints
Monaco Coach Dynasty
5 complaints

All Monaco Coach models →

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology