2006 Monaco Coach Diplomat Problems, Complaints & Recalls
- Compared with other Diplomat years
- Not enough data 4th of 13 for complaints
- Safety recalls
- 3 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 4 complaints with NHTSA about the 2006 Monaco Coach Diplomat. That ranks 4th out of 13 Diplomat model years for complaints. The most reported problem area is engine and engine cooling (3 complaints, 75%), typically at around 12,500 miles. There are 3 safety recalls covering this model year.
- 4owner complaints
- 3safety recalls
- 0NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2006 Monaco Coach Diplomat problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Engine and Engine Cooling | 3 | 75% | 12,500 | — | — |
| Fuel System, Gasoline | 1 | 25% | 12,500 | — | — |
| Structure | 1 | 25% | 22,000 | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2006 Monaco Coach Diplomat recalls (3)
Tap a recall to see the problem, the risk and the fix.
Visibility:windshield wiper/washer:linkages
Problem: Monaco is recalling 1,733 my 2006-2007 diplomat and holiday rambler endeavor motor homes equipped with wiper systems supplied by am equipment. The drive motor link becomes disengaged during operation from the wiper drive arm where it attaches to the drive arm causing the wiper system to fail.
Risk: When the wiper system fails, the operator will have reduced visibility which could result in a crash.
Fix: Monaco will replace the complete under-the-hood wiper system with a new model, reusing the wiper arm and blades. The recall began on march 11, 2008. Owners may contact monaco at 1-800-685-6545.
Engine and engine cooling:engine:diesel
Problem: On certain motor homes built with cummins isl cm850 diesel engines, the connecting rod contains a machining defect in the wrist pin bushing of the rod that could cause a seizure of the piston pin.
Risk: If allowed to progress, this can lead to engine failure with the possibility of the rod rupturing the lock cavity, oil and debris on the roadway and vehicle crash.
Fix: Monaco is working with cummins to recalibrate the engine control module and enhance the engine protection system enabling it to provide early detection of the failure mode and avoid more serious engine damage and resultant safety hazard. Cummins will also install a new valve cover with a crankcase pressure sensor free of charge (please see 07e033). Owners may contact cummins at 800-343-7357 or monaco at 1-800-685-6545.
Exterior lighting:headlights:switch
Problem: On certain motor homes, the headlight switch in the front electrical box/firewall can overload.
Risk: Changes in the component supplier relay requirements with an updated controller were causing the headlights to stop functioning without warning. This could potentially cause a crash while driving at night.
Fix: Dealers will install a new wiring harness. The recall began on september 30, 2005. Owners may contact monaco at 1-800-685-6545.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
Motor home by monaco broken frame trailing arms. *tr
Owner of a 2006 40' monaco diplomat rv motorhome delivered with a 400hp diesel engine, manufactured by cummins inc. Received a recall notice re a possible engine failure; he is requesting help in ordering cummins to install a proper manufactured engine. *kb the consumer stated the remedy the…
Recall by cummins on isl850 engines installed on 2006/7 monaco motorhomes. The recall does not address the possible engine failure issue. It only protects the engine from blowing up thus saving cummings money. The correct fix should be a new engine which would not have the uncertainty of engine…
While traveling in montana in our 2006 monaco diplomat motorhome with the cummins isl400 engine a fuel leak developed in the engine. This leak involved the line from the fuel pump to the fuel rail spraying diesel fuel all over the engine while the unit was running. Motorhome had to be towed 65…
Other Monaco Coach Diplomat years
← 2005 Diplomat · 2007 Diplomat →
| Year | Complaints | Recalls |
|---|---|---|
| 2011 Diplomat | 1 | 4 |
| 2010 Diplomat | 1 | 5 |
| 2009 Diplomat | 1 | 1 |
| 2008 Diplomat | 2 | 2 |
| 2007 Diplomat | 1 | 3 |
| 2006 | 4 | 3 |
| 2005 Diplomat | 1 | 2 |
| 2004 Diplomat | 4 | 1 |
| 2002 Diplomat | 2 | 1 |
| 2001 Diplomat | 6 | 4 |
| 2000 Diplomat | 14 | 2 |
| 1999 Diplomat | 10 | 3 |
| 1998 Diplomat | 1 | 3 |
See all Monaco Coach Diplomat problems by year, every Monaco Coach model, or the VIN decoder.
Similar Monaco Coach models
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Frequently asked questions
What are the most common problems with the 2006 Monaco Coach Diplomat?
Owners most often report engine and engine cooling, fuel system, gasoline, structure problems. The top one, engine and engine cooling, accounts for 3 complaints.
Was there a recall on the 2006 Monaco Coach Diplomat?
Yes, 3 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2006 Monaco Coach Diplomat a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Diplomat model years, the 2006 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.