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2004 Monaco Coach DiplomatProblems, recalls & complaints

NHTSA has logged 4 owner complaints about the 2004 Monaco Coach Diplomat, most often about the electrical system. It is covered by 1 safety recall.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls1Free fix at dealersOwner complaints40 with a crash, fire or injuryTypical failure mileage1kElectrical system, median miles

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through October 18, 2005. Updated daily.

Complaints by system

Where the 2004 Monaco Coach Diplomat has problems

4 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Electrical system20
Service brakes, hydraulic20
Structure20
Visibility20
Equipment10
Seats10

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

1 recall

2004 Monaco Coach Diplomat recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

–no report yet

Engine: diesel

Recall 04V-441 · Sep 13, 2004 · 1,189 vehicles

Risk. OIL LEAKAGE ON A HOT ENGINE CAN RESULT IN AN ENGINE COMPARTMENT FIRE, POSSIBLY RESULTING IN INJURIES.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Monaco Coach.

Best & worst years

2004 vs. every other Diplomat year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Diplomat median. How we score

'98'99'00'01'02'04'05'06'07'08'09'10'11
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
In owners' words

What Diplomat owners report

Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.

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…
Complaint 10134035 · Oct 18, 2005 · 806 miles
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…
Complaint 10115850 · Mar 25, 2005

Own a 2004 Diplomat?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.