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2018 Thor Motor Coach Quantum Class C reviews

3.3 (15 reviews)
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Liveability
3.8
Overall quality
2.3
Floorplan
4.3
Driving/towing
3.6
Factory warranty
2.7

Top 10 Class C

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Stars Refinement

15 ratings and reviews

Voted most helpful review

Van Thomas

Reviewed on April 10, 2023

RV reviewed 2018 Thor Motor Coach Quantum WS31 view listing

4.0
The motorhome was well built and has been a pleasure to own. We find it very comfortable. The only thing I dislike about it is that the gas tank is too small. At 8 mpg you have to get fuel very often. It drives very well and is easy to setup.... read more
The motorhome was well built and has been a pleasure to own. We find it very comfortable. The only thing I dislike about it is that the gas tank is too small. At 8 mpg you have to get fuel very often. It drives very well and is easy to setup.
Livability
4.0
Overall quality
4.0
Floorplan
5.0
Driving/towing
4.0
Factory warranty/support
3.0
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Voted most helpful review

Ray McBrearty

Pennsylvania

Reviewed on March 2, 2022

RV reviewed 2018 Thor Motor Coach Quantum 31WS view listing

2.4
Like all RV owners we struggled for years emptying our black tank. We purchased all the tools to simplify the process. This is not an area easy to diagnose a problem but we finally did find the issue. The issue was an engineering flaw at the manufacturing level. when the black tank release handle was pulled,... read more
Like all RV owners we struggled for years emptying our black tank. We purchased all the tools to simplify the process. This is not an area easy to diagnose a problem but we finally did find the issue. The issue was an engineering flaw at the manufacturing level. when the black tank release handle was pulled, it did not completely open the valve and debris would get clogged and unable to empty. When we approached Thor it fell on deaf ears. They should have authorized a repair. They created the problem and should have fixed it. This is not warranty work. This is a design issue. To those of you who are considering an RV, avoid Thor.
Livability
3.0
Overall quality
2.0
Floorplan
3.0
Driving/towing
3.0
Factory warranty/support
1.0
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Voted most helpful review

Pete

Florida

Reviewed on March 31, 2021

RV reviewed 2018 Thor Motor Coach Quantum RC25 view listing

4.4
This RV is our 4th. This model has the full length slide which makes the interior look like a Class A when it is out. It is short enough to qualify for most parks) Important for lots of National and St. Parks. The Quantum series is noted for its quality and good looks. This is our 2nd small Thor. We put over ... read more
This RV is our 4th. This model has the full length slide which makes the interior look like a Class A when it is out. It is short enough to qualify for most parks) Important for lots of National and St. Parks. The Quantum series is noted for its quality and good looks. This is our 2nd small Thor. We put over 50k miles on our 2003 with only minor issues. Basically, if a car fits in the parking space this RV will too. It Handle's very well. My wife is the sole driver. Gas milage poor at avg of 8mpg. It is a Ford so service avail all over U.S. and Canada. Plenty power for towing, even in mountains.
Livability
5.0
Overall quality
4.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
3.0
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Voted most helpful review

Brian Hunter

Texas

Reviewed on June 28, 2020

RV reviewed 2018 Thor Motor Coach Quantum LF31 view listing

1.6
Over all build quality is awful, construction materials poor and support inadequate. I have decided to upgrade materials as I effect repairs myself. I suggest that getting the seven year warranty ( we purchased this ) is not worth it, we never received the details until after our purchase and were shocked at ... read more
Over all build quality is awful, construction materials poor and support inadequate. I have decided to upgrade materials as I effect repairs myself. I suggest that getting the seven year warranty ( we purchased this ) is not worth it, we never received the details until after our purchase and were shocked at what little it covers.
Livability
2.0
Overall quality
1.0
Floorplan
3.0
Driving/towing
1.0
Factory warranty/support
1.0
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Voted most helpful review

Helen Haas

Tennessee

Reviewed on March 26, 2020

RV reviewed 2018 Thor Motor Coach Quantum 31WS view listing

3.0
We have had trouble with the electrical system on this unit since we bought it. It has been in the shop more than it has been out camping. Every time we take it out, it has some other issue pop up. We are the second owner. The first owner only kept it long enough to drive it from Texas to Tennessee. That s... read more
We have had trouble with the electrical system on this unit since we bought it. It has been in the shop more than it has been out camping. Every time we take it out, it has some other issue pop up. We are the second owner. The first owner only kept it long enough to drive it from Texas to Tennessee. That should have been our first warning not to buy it. But the coach is the perfect size for two people and the appearance of it, both inside and out, is spectacular! We should have had the remainder of the factory warranty as the coach was less than a year old but a Thor service rep told us the warranty was only for the original purchaser. After the one year warranty had expired, I called Thor again to check on recalls for electrical issues. She told me that we were entitled to the remainder of the factory warranty but since it had expired there was nothing they could do to help us. We have replaced house batteries twice and need to replace them again before we can take it out this year. We have replaced the regulator, the inverter, the Main on/off switch, fuses—-basically anything that had anything to do with the electrical system. And it is still draining the batteries, won’t charge them when we run the motor and/or generator. I would not recommend a Thor motor home to anyone!
Livability
4.0
Overall quality
2.0
Floorplan
4.0
Driving/towing
4.0
Factory warranty/support
1.0
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Voted most helpful review

Roy Lehto

Pennsylvania

Reviewed on November 24, 2019

RV reviewed 2018 Thor Motor Coach Quantum RC25 view listing

3.8
Had to return to factory service because to many issues from electrical plumbing mechanical and quality of construction. Leaked like a screen door. First trip fixed 80% and is currently back for repairs. Thor service is dedicated and friendly unlike Camping World. Quaility control sucked... read more
Had to return to factory service because to many issues from electrical plumbing mechanical and quality of construction. Leaked like a screen door. First trip fixed 80% and is currently back for repairs. Thor service is dedicated and friendly unlike Camping World. Quaility control sucked
Livability
4.0
Overall quality
1.0
Floorplan
4.0
Driving/towing
5.0
Factory warranty/support
5.0
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Voted most helpful review

Mike Reed

Arizona

Reviewed on September 22, 2019

RV reviewed 2018 Thor Motor Coach Quantum KM24 view listing

4.2
Great looking RV. Merceds Sprinter part of it great, lots of power and reasonable mileage with the diesel, 14mpg. Did have some initial problems on the Thor part. Maiden trip the slider stuck out while camping remote in Yellowstone, no phone service and could not drive the RV. I have a troubleshooting backgro... read more
Great looking RV. Merceds Sprinter part of it great, lots of power and reasonable mileage with the diesel, 14mpg. Did have some initial problems on the Thor part. Maiden trip the slider stuck out while camping remote in Yellowstone, no phone service and could not drive the RV. I have a troubleshooting background doing HVAC work and was able to find a bundle of wires that had been crushed and were shorting together opening a fuse. Service dept did fix the wiring but I am apprehensive every time I use the slider. I had to remove all the drawers to glue and staple the bottoms in as they were all falling out. The service dept would only re-staple, not a permanent repair. Never use the instant water heater as so much water is wasted before the heater goes through the start cycle and the time it takes the hot water to get to the faucet. Not good when you dry camping on a limited water supply. RVs I find in general have overall poor quality and attention to detail. A lot depends on who is doing the work that particular day on the assembly line. Probably making a poor wage with a poor attitude!
Livability
5.0
Overall quality
3.0
Floorplan
5.0
Driving/towing
5.0
Factory warranty/support
3.0
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Voted most helpful review

Renee Bouren

Michigan

Reviewed on August 3, 2019

RV reviewed 2018 Thor Motor Coach Quantum RC25 view listing

4.0
We chose the Thor Quantum RC25 because we rustic camp the majority of the time and wanted something smaller that would go into state forests easily. We upgraded from a 22 foot Nash trailer. We looked at various floor plans and storage capacity. Our 22ft trailer had immense storage in a small space and we foun... read more
We chose the Thor Quantum RC25 because we rustic camp the majority of the time and wanted something smaller that would go into state forests easily. We upgraded from a 22 foot Nash trailer. We looked at various floor plans and storage capacity. Our 22ft trailer had immense storage in a small space and we found that most Class C's lacked storage. The Thor hit the ball out of the park as far as were concerned. The residential cabinets in the kitchen area with the two pantry's is welcome. The storage is outstanding for a small coach. We don't have enough seating in the coach as no couch or chair is available in this floor plan. I use a small camping chair for additional seating if needed. The bathroom is very small - much smaller than in my trailer, but it is functional. There are some oddities like the grab bar is not in a logical place and the water heater control is under the towel bar so you can't see it if you have a towel hanging. The toilet is crooked which drives me nuts, but I'm told it can't be fixed due to the aggravation of plumbing. All in all, it's workable. We had a ton of things that needed attention when we took delivery. I understand this is normal for most RV's. Didn't have that problem with our trailer when it came from the factory. Everything was perfect. To begin with, we couldn't pump gas into the coach without the gas pumps turning off. This was a major issue that took us a year to get straightened out. The vent in the cab was installed backwards. The wall next to the fridge bowed terribly, and there were screw and nail pops everywhere. The wallpaper, trim and paint were bad in some areas. The dinette top was scratched in multiple places. Working with General in Wixom was a horrible experience. Some of these issues were handled by them, most by my husband after they got the parts that were needed. We just stopped going to General for repairs. My last and most important comment is that Thor has more than impressed us with how they stand behind their product. We have contacted them directly for two repairs that we had done at a private service center and they paid both. Understand that these items should have been right to begin with, but Thor didn't make it difficult for us to get reimbursed. They were prompt and professional. Whenever I call their customer service, they are always willing to help even if we don't get resolution at that point in time. I wanted to write this review to say that although we have had our share of issues with the Quantum, Thor has been great to work with. I wanted to make sure I let people know this since writing a bad review is easier than writing a good one for most of us.
Livability
4.0
Overall quality
3.0
Floorplan
4.0
Driving/towing
4.0
Factory warranty/support
5.0
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Voted most helpful review

james F. Murphy

New York

Reviewed on April 12, 2019

RV reviewed 2018 Thor Motor Coach Quantum RS26 view listing

1.8
I bought the Thor Quantum Rs 26 in April 2018 The unit was in the dealership for warranty repairs from April 2018 to June 2018 they let me take it for several months even though they were not completely finished fixing all problems. I returned the unit to the selling dealer in October of 2018 and in April ... read more
I bought the Thor Quantum Rs 26 in April 2018 The unit was in the dealership for warranty repairs from April 2018 to June 2018 they let me take it for several months even though they were not completely finished fixing all problems. I returned the unit to the selling dealer in October of 2018 and in April of 2019 I got fed up with owning and paying for a vehicle that I could not use so I took a $20,000 loss and traded it in. The original selling dealer said it was standard for people to lose $20,000-$30,000 when trading in units. Between the lack of customer warranty support from Thor and the Selling dealers inability to correct leaks and make all repairs in a timely fashion. I would only recommend this unit to my worst enemy. Thoroughly disgusted with lack of warranty support and dealer support with this RV. I will never buy another Thor product. They have a total lack of quality control and are more interested in quantity instead of quality.
Livability
1.0
Overall quality
1.0
Floorplan
5.0
Driving/towing
1.0
Factory warranty/support
1.0
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Voted most helpful review

Gloria R

Florida

Reviewed on February 18, 2019

RV reviewed 2018 Thor Motor Coach Quantum LF31 view listing

1.8
Don't buy from Thor! The coach looks great inside and the floorpan is good for a family. Kitchen a bit cramped for regular use and the slide doesn't open as wide as others (probably because it runs the length of the coach). Bathroom is large which is it's saving grace along with a nice residential fridge. ... read more
Don't buy from Thor! The coach looks great inside and the floorpan is good for a family. Kitchen a bit cramped for regular use and the slide doesn't open as wide as others (probably because it runs the length of the coach). Bathroom is large which is it's saving grace along with a nice residential fridge. Other than the floorpan and how it looks inside we've had nothing but issues in the past year. It's been in the shop for warranty work more than we've been able to take it out on trips. Very very poor quality work. We've had drawers drop the bottoms (with minimal inside), or open while traveling. One of the top cabinets has opened a few times and poured everything on top of our children while driving (been "fixed" at least once). It took months to get the entry door "fixed" because it sticks and it still sometimes sticks. I will say part of our issue has been a horrible dealer service department but if the unit didn't have so many workmanship issues we wouldn't have known how bad the dealer service was. As far as the engine - we took it from Florida to Pennsylvania this past summer. It was rough on the mountains (and they aren't as high as out west) and was struggling. We weren't even towing a car and don't think it could pull one if we tried. Save yourself some heartache and look elsewhere.
Livability
3.0
Overall quality
1.0
Floorplan
3.0
Driving/towing
1.0
Factory warranty/support
1.0
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