2004 Monaco Coach Diplomat recalls and problems

The 2004 Monaco Coach Diplomat has 1 recall and 4 owner complaints on file with NHTSA; the most reported problem area is electrical system.

How the 2004 compares

High

Fewest complaintsMost complaints

High complaint count among 11 Diplomat model years — 3rd most.

1recalls

4complaints

0crashes

0fires

0injuries

2,301median miles

Owner complaints filed with NHTSA, not verified and not adjusted for sales. Ranking compares this model's own years only.

Does your car have an open recall?
Recalls apply to specific vehicles. Only a VIN lookup on NHTSA's official site shows whether yours is affected and still unrepaired.

Check your VIN →

1 recall

Engine

Sep 13, 2004 · NHTSA campaign 04V441000 · 1,189 vehicles

Problem: On certain motorhomes equipped with cummins engines, oil can leak into the engine compartment from a crack in the cup plug.

Original NHTSA wording

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.

Original NHTSA wording

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

Remedy & notes

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.

Customers can also contact the national highway traffic safety administration's auto safety hotline at 1-888-DASH-2-DOT (1-888-327-4236).

Recall text as published by NHTSA and the manufacturer.

What owners complain about

Owner complaints filed with NHTSA; one complaint can name several areas. Not verified by NHTSA.

2004 vs. other Monaco Coach Diplomat years

Owner complaints by model year; the darker bar is the 2004. Click a bar to switch year.

Questions

Does the 2004 Monaco Coach Diplomat have recalls?

Yes — NHTSA lists 1 recall campaign covering the 2004 Monaco Coach Diplomat, the latest from Sep 13, 2004 (engine). A recall applies to specific vehicles: enter your VIN at nhtsa.gov/recalls to see whether yours is affected and still open.

What are the most common problems with the 2004 Monaco Coach Diplomat?

Owner complaints filed with NHTSA most often mention electrical system (2), service brakes (2), structure (2). Complaints are consumer reports and are not verified by NHTSA.