RV Type
Make and model
Floorplan
Year
Monaco Diplomat 40PDQ 40PDQ reviews
Liveability
1.0
Overall quality
1.0
Floorplan
1.0
Driving/towing
1.0
Factory warranty
1.0
Reviews
Stars Refinement
11 ratings and reviews
Voted most helpful review
Mohammad Mughal
California
Reviewed on November 30, 2020
RV reviewed
2006 Monaco Diplomat 40PDQ

5.0
Excellent service
Kmowledge able
Trust worthy.
George is an excellent man. Will help till end.
He wants 2 make sure 2 the extent till customer is fuuly satisfied.
Will recommend dealer ship 2 my family and friends and future customers.
Will give them ***** 5 stars...read more
Excellent service
Kmowledge able
Trust worthy.
George is an excellent man. Will help till end.
He wants 2 make sure 2 the extent till customer is fuuly satisfied.
Will recommend dealer ship 2 my family and friends and future customers.
Will give them ***** 5 stars i
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Marsh
North Carolina
Reviewed on April 16, 2018
RV reviewed
2006 Monaco Diplomat 40PDQ

5.0
This RV has it all. Ready to roll and could find absolutely nothing wrong with it. Unfortunately was not in my budget. Worth every penny they are asking for it. So many upgrades ... Best of the best in everything. Awesome...read more
This RV has it all. Ready to roll and could find absolutely nothing wrong with it. Unfortunately was not in my budget. Worth every penny they are asking for it. So many upgrades ... Best of the best in everything. Awesome coach.
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Ralph Emerson
Oregon
Reviewed on August 9, 2017
RV reviewed
2006 Monaco Diplomat 40PDQ

5.0
We have been so pleased with everything about the motorhome...with the 400 horsepower diesel, we have plenty of power to handle the hills around us, and when you throw in the 8 adjustable 8 bags it makes this coach amazing to drive. It has plenty of interior space while traveling, but it is simply...read more
We have been so pleased with everything about the motorhome...with the 400 horsepower diesel, we have plenty of power to handle the hills around us, and when you throw in the 8 adjustable 8 bags it makes this coach amazing to drive. It has plenty of interior space while traveling, but it is simply huge with all four slide outs extended.
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Ralph Emerson
Oregon
Reviewed on August 4, 2017
RV reviewed
2006 Monaco Diplomat 40PDQ

5.0
We have been pleasantly surprised with the quality in which this coach has been built. The power of the 400 HP Diesel is incredible, especially up the hills, with the transmission shifting...read more
We have been pleasantly surprised with the quality in which this coach has been built. The power of the 400 HP Diesel is incredible, especially up the hills, with the transmission shifting flawlessly!
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
John Dockendorff
Kansas
Reviewed on May 20, 2017
RV reviewed
2007 Monaco Diplomat 40PDQ

4.8
Coach usually garaged except winter months in South TX and an occasional midwest rally. We like the two lavatory sinks, circular shower and 4 slide roominess. I like the computer desk with extra storage and room for a printer/copier. Wife does not want to sell, but there comes a time---now in our...read more
Coach usually garaged except winter months in South TX and an occasional midwest rally. We like the two lavatory sinks, circular shower and 4 slide roominess. I like the computer desk with extra storage and room for a printer/copier. Wife does not want to sell, but there comes a time---now in our 80's.
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
4.0
Voted most helpful review
richard dye
Ohio
Reviewed on May 4, 2017
RV reviewed
2005 Monaco Diplomat 40PDQ

5.0
HANDLES LIKE A DREAM. ACTUALLY ENJOY driving it more than my car. With the 4 slides it has abundant living space and has a nice large bathroom. The night/day shades give security. The 400 Cummins engine doesn't hesitate and the Allison 6 speed transmission works great.Its been a great coach to stay...read more
HANDLES LIKE A DREAM. ACTUALLY ENJOY driving it more than my car. With the 4 slides it has abundant living space and has a nice large bathroom. The night/day shades give security. The 400 Cummins engine doesn't hesitate and the Allison 6 speed transmission works great.Its been a great coach to stay in in Florida
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Mike Koger
Iowa
Reviewed on February 9, 2017
RV reviewed
2008 Monaco Diplomat 40PDQ

5.0
Nothing to complain about, everything worked the way it should. Nice quiet ride very comfortable on and off the highway. It's easy to operate and takes the work out of camping, 5 stars recommendation for posh...read more
Nothing to complain about, everything worked the way it should. Nice quiet ride very comfortable on and off the highway. It's easy to operate and takes the work out of camping, 5 stars recommendation for posh camping.
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
5.0
Voted most helpful review
Ernie
Indiana
Reviewed on August 28, 2016
RV reviewed
2007 Monaco Diplomat 40PDQ

4.0
We have enjoyed our Monaco with its strong construction, very nice riding chassis, and Cummins engine paired with the Allison Transmission. We recently traveled the mountains of Colorado with no lack of power towing our 4 door Jeep Wrangler. This RV has everything you need for extended stays...read more
We have enjoyed our Monaco with its strong construction, very nice riding chassis, and Cummins engine paired with the Allison Transmission. We recently traveled the mountains of Colorado with no lack of power towing our 4 door Jeep Wrangler. This RV has everything you need for extended stays anywhere whether dry camping or at developed campgrounds. The 4 slide outs increase the interior so much that when the family comes along with grandchildren we still have plenty of room.
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
5.0
Voted most helpful review
Roger
Alabama
Reviewed on May 11, 2016
RV reviewed
2005 Monaco Diplomat 40PDQ

3.0
I've owned many RV's in the past 50 years. They included pickup campers, bumper pull trailers, a large (45') fifth wheel trailer, and several motor homes.
In 2005 Monaco made many changes to their Diplomat, including a fourth slide (in the 40PDQ model). That opened the interior up and resulted...read more
I've owned many RV's in the past 50 years. They included pickup campers, bumper pull trailers, a large (45') fifth wheel trailer, and several motor homes.
In 2005 Monaco made many changes to their Diplomat, including a fourth slide (in the 40PDQ model). That opened the interior up and resulted in spacious mobile living quarters.
Monaco's choice of a ROADMASTER chassis, (with 8 airbags and 8 shocks), gives this coach a stable, quiet, comfortable ride. I previously owned another brand (comparable cost) and it rode like a "lumber truck". The way the newer Monacos handle crosswinds is really impressive. (2005 & newer)
One shortcoming of most coaches is a lack of storage. I can honestly say that this coach has more storage that a person knows what to do with! Cabinets everywhere! Many drawers! Under coach storage that most coach owners would "die for".
I've read posts authored by RV experts, and very experienced owners. Every one that I've ever read said something to the effect of, "YOU CAN'T GO WRONG WITH A Diplomat 40PDQ." I agree wholeheartedly!
Note: There is a vast difference between various floor plans and various year models. Prior to year 2005 the ROADMASTER chassis used by Monaco, and other manufacturers, had handling problems. Those chassis models (RR4R) had only four airbags and four shocks. That was insufficient for a coach of 40'. Various remedies and aftermarket cures were attempted, to no avail. Stay clear of any brand or model riding on that chassis. If you will insist on ROADMASTER RR8R Chassis, combined with a Cummins ISL Turbo Diesel and an Allison World Transmission ... You'll be ONE HAPPY CAMPER for years to come!
One last thing: Don't get hung up on horsepower. The ISL350 hp, and the ISL400 hp Cummins Turbo Diesel are basically the same engine. The 400 is simply programmed to drink more fuel, thus the extra horsepower. The 350 gets better gas mileage (diesel mileage). Any authorized Cummins dealer or authorized service center can change the horsepower (either up or down) by reprogramming the fuel controller. A local dealer quoted $170 to reprogram mine but I've heard other quotes of up to $300. My advice? If you buy a 350, leave it alone. Drive it a while and I think you'll find that Allison six speed transmission provides all the power you want, or can use. However, if you're doing a lot of mountain driving while towing ... and you don't object to loosing a mile per gallon ... have it changed to 400 hp. If you do change to 400 and you decide that you made a mistake, no problem ... have it changed back!
Monaco got it right on this high quality coach!!!
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Voted most helpful review
jim
Kansas
Reviewed on December 21, 2015
RV reviewed
2003 Monaco Diplomat 40PDQ

3.8
my third monaco coach this is one fine coach cant find anything to complain about gets between 9 and 10...read more
my third monaco coach this is one fine coach cant find anything to complain about gets between 9 and 10 mpg
Livability
5.0
Overall quality
5.0
Floorplan
5.0
Driving/towing
4.0
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