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2004 Monaco Coach Diplomat problems

The most common problem on the 2004 Monaco Coach Diplomat is body and structure. It has 2.0 times the complaints of a typical Diplomat model year.

Typical year2.0x the typical complaints
Owner complaints
4
Recalls
1
Worst area
Body

The worst 2004 Monaco Coach Diplomat problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Body
    2
  • Brakes
    2
  • Electrical
    2
  • Visibility
    2
  • Seats
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Body
    2
  • Brakes
    2
  • Electrical
    2
  • Visibility
    2
  • Seats
    1

Recalls 1

Engine and engine cooling: engine: dieselReported September 13, 2004 · 1,189 vehicles affected
What is wrong
On certain motorhomes equipped with cummins engines, oil can leak into the engine compartment from a crack in the cup plug.
Risk
Oil leakage on a hot engine can result in an engine compartment fire, possibly resulting in injuries.
Remedy
Cummins is conducting the owner notification and remedy for this campaign. Cummins will install a steel cup plug boss cap to all affected engines. Owners should contact cummins customer assistance center at 1‑800‑343‑7357 or monaco at 1‑800‑685‑6545.

Recall number 04V441000 · Recall details

See all 1 recalls for the 2004 Monaco Coach Diplomat

What 2004 Monaco Coach Diplomat owners say

Most recent owner complaints, unedited.

Filed Oct 18, 2005 · Body, Brakes · 806 miles · AL

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, a person is unable to hear the traffic, and this causes distraction for the driver. Also, fear of turning a corner and causing an accident. The captain's driver seat is wobbling at the pedestal, the caller is afraid the seat will fall off. When applying the brakes the right rear smokes and bellows out around the wheel. This motor home gcwr is 39,300 pounds. This is the reason why this motor home is unsafe. Different dealers have tried to fix the roadside slide, but no one has been able to do so. Manufacturer offered them another motor home if she paid the difference. They offered them $5000.00 to bring it to elkhart, indiana for repairs. The caller has had it there two other times for the same problem. The caller said the work was poorly done under the warranty. Caller believes this is a manufacturer's defect. The caller has had numerous electrical problems with motor home.*ak

Filed Jun 5, 2005 · Visibility · 5,152 miles · TX

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.

Filed May 26, 2005 · Visibility · 2,301 miles · TX

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.

Filed Mar 25, 2005 · Body, Brakes · AL

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 applying the brakes smoke billowed from the rear passenger's side wheel. The air conditioner/heat pump kicked the circuit breaker. The windshield leaked in the center onto the dash. Cb ground problem. The washer and drying did not work properly. The holding tank would not register properly. Many attempts have been made to repair the coach but none have been successful. The consumer would like a full refund of all money plus attorney fees or a new coach. Nm

Compare the 2004 Monaco Coach Diplomat

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Questions about the 2004 Monaco Coach Diplomat

Is the 2004 Monaco Coach Diplomat reliable?

Owners have filed 4 complaints about the 2004 Monaco Coach Diplomat, 2.0 times a typical Diplomat model year.

What is the most common problem with the 2004 Monaco Coach Diplomat?

Body and structure, with 2 complaints. Next is brakes (2).

How many recalls does the 2004 Monaco Coach Diplomat have?

1 recall, covering engine and engine cooling.

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