2004 Monaco Coach Diplomat problems, complaints & recalls
Most-reported problem areas: Visibility:defroster/Defogger/Hvac System:heater Core (2) · Structure (2)
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
What owners report
2005-10-18 · Structure · 806 mi“dt: the caller has a problem with the front roadside slide on the motor home. they had it in for repair 8 different times, and it still is not fixed. to date the roadside slide is unstable. the slide is off center, and a person can put their hand in the bottom opening to the side. therefore, the slide rides too high and causes a loud wind noise,…”
2005-06-05 · Visibility:defroster/Defogger/Hvac System:heater Core · 5,152 mi“defroster not working windshieldd iced over when driving from snow. when stoped defroster will output enough heat to melt ice. heater defroster is sub standard insufficient hot water flow from rear mounted diesel engine to heater core about 37ft.…”
2005-05-26 · Visibility:defroster/Defogger/Hvac System:heater Core · 2,301 mi“defroster not working windshield iced over when driving from snow and freezing rain.when stoped defroster will output enough heat to melt ice. heater defroster is sub standard.…”
2005-03-25 · Structure“diplomat 40pdq 2004 motor home, the slide was off center and strips were not lined up properly. *bf the slide rides to high and causes so much wind noise that the consumer was unable to hear outside traffic. a gap under the window allowed water to coming into the coach. the captain driver seat started coming apart at the pedestal. when applyi…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.