2004 Monaco Coach Diplomat recalls and problems

The 2004 Monaco Coach Diplomat has 1 safety recall and 4 owner complaints filed with NHTSA. Recall repairs are free at any Monaco Coach dealer.

Recalls

Complaints

Crashes / fires

0 / 0

Injuries / deaths

0 / 0

Recalls may cover only some 2004 Monaco Coach Diplomat vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.

2004 Monaco Coach Diplomat recalls

Recall 04V-441: Engine and Engine Cooling

Reported Sep 13, 2004 · 1,189 vehicles affected · MONACO COACH CORPORATION

Problem: 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.

Fix: 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.

2004 Monaco Coach Diplomat problems reported by owners

Problem area	Reports
Visibility	2
Structure	2
Service Brakes, Hydraulic	2
Electrical System	2
Seats	1
Equipment	1

Most reported parts

Visibility › Defroster/Defogger/Hvac System › Heater Core — 2
Seats › Front Assembly › Recliner — 1

Typical mileage at the time of the problem: 2,301 miles (median of owner reports).

Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.

Recent 2004 Monaco Coach Diplomat complaints

Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.

Structure · at 806 miles · reported Oct 18, 2005

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…

Visibility · at 5,152 miles · reported Jun 5, 2005

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.

Visibility · at 2,301 miles · reported May 26, 2005

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.

Equipment · reported Mar 25, 2005

Diplomat 40pdq 2004 motor home, the slide was off center and strips were not lined up properly. 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…

Other Monaco Coach Diplomat years

2011 2010 2009 2008 2007 2006 200520042002 2001 2000

Compare all Monaco Coach Diplomat years · All Monaco Coach models

Frequently asked questions

Does the 2004 Monaco Coach Diplomat have any recalls?

Yes — NHTSA lists 1 recall for the 2004 Monaco Coach Diplomat: 04V-441 (engine and engine cooling). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.

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

Owners report visibility problems most often (2 reports), followed by structure (2). The typical mileage when problems were reported is about 2,301 miles.

Are Monaco Coach recall repairs free?

Yes. Safety recall repairs are free at authorized Monaco Coach dealers, whether you are the first owner or bought the car used.