New 2025 Navion 24D Owner With Questions

[Bnystrom]

Before you replace the sway bar, measure the diameter of the existing one. Rumor has it that they're already upgraded on newer models. For reference, the Hellwig bar is 1.5" in diameter. Definitely check out the Agile Offroad/Fox shocks. They do a great job of reducing rocking and also improve the overall ride comfort somewhat.

 

[jd2610]

Thank you for the responses! We pick the new Navion this coming weekend. The dealer is doing some upgrades for us. I will get back to you regarding the specifics as I learn more about this beast.
The big issue this week is how much lithium power they can fit into that tight step battery area.
The service guy claims two Group 24's or smaller is the only size. However later this morning he is going to see if the oneEpoch 300 will fit. If so, I'll take it.
Based on the Winni wiring diagrams, a Group 31 size will fit. Amazon has a Group 31 Redodo smart 165ah for $350. If the Epoch will not fit, I may drive it away with the stock lead acids and install the Redodo batts or equivalent myself. That 12 volt only fridge is my big concern. The rig comes with two 100 watt roof solar panels. I plan to buy a portable external 100w panel and extension cable for parking in the shade.

Curious what upgrades you did! Please share.

 

[Bucket List Navion]

We finally had a chance to take our 2025 Navion D out for a week here in CA. Stayed at an RV park and then did some boondocking. We really enjoyed traveling in it. Everything worked as expected. While boondocking I was impressed with the inverter powering the microwave and TV without having to run the generator!

Here are our upgrades, issues, and thoughts so far:

Dealer removed both stock lead acid batteries and installed one Epoch 300 ah lithium battery.
I am very happy with the performance of the Epoch. It is expensive but impressive!
Learning that changing to lithium requires some other changes.
After install the Zamp solar charger needs to be set to lithium charging. Easy to do.
I then noticed that the new battery is not charging from the chassis alternator while driving.
(It does charge as expected on shore and gen power.)
According to Winnebago (W, I need to install a solenoid charge controller and relay to get the alternator to charge the house battery.
Still investigating this and other options.

Ordered new murphy bed mattress.
The WB stock mattress is extremely firm! Custom Made Mattress in NC is making us a "soft" mattress that is a two piece replacement designed to fit this bed, including mounting straps. Other RV mattress companies that I looked at did not offer a two piece option with mounting straps.

Minor issues:
Two cabinet push button latch mechanisms were installed "off center" so the circular push buttons jam.
Will work with WB and my dealer to get this resolved.

Both lower rear storage cabinet doors are not aligned with the body. They stick out about 1 inch on the front sides.
We noticed this before the sale. Our dealer told us that they are adjustable. Now we are informed that they are not adjustable. I'm concerned they will draw in water while driving in the rain.
Will work with WB and my dealer to get this resolved.

FOB chassis door lock/unlock stopped working.
Will work with WB and my dealer to get this resolved.

Noticed some excessive sway/rocking while driving around town.
Thinking about installing Fox Agile shocks in the rear. Still investigating.

Happy camping!!!

 

[roundtail]

Noticed that the engine temp didn't climb at all.

If this hasn't been mentioned, you should monitor the engine oil and trans temps on the "INFO" screen on the MBUX display. The temp on the dashboard display is only coolant.

 

[Bnystrom]

I'm not sure what Winnebago means by "a solenoid charge controller and relay", but the most common solution is to install a DC-DC charger. I'm betting that the dealer disconnected the stock boost solenoid, which prevents alternator charging - and possible damage - from the large lithium battery drawing too much current.

I've found that if the push-button latches are set too tight, they can jam. This is easy to test; when a latch jams, just push on the door hard and see if the latch will work properly. If so, you just need to adjust the catch to be closer to the latch.

I'm not sure if it works with newer V/N's, but turning the key past the "accessory" position to the "on" position, then holding the lock button on the fob for 30 seconds, will re-pair the fob with the chassis, at least on older models. It's quick to try, so you don't have anything to lose.

 

[Bucket List Navion]

If this hasn't been mentioned, you should monitor the engine oil and trans temps on the "INFO" screen on the MBUX display. The temp on the dashboard display is only coolant.

Thanks! I'll look for trans temp. Engine oil level pops up on power up.

 

[Bucket List Navion]

I'm not sure what Winnebago means by "a solenoid charge controller and relay", but the most common solution is to install a DC-DC charger. I'm betting that the dealer disconnected the stock boost solenoid, which prevents alternator charging - and possible damage - from the large lithium battery drawing too much current.

I've found that if the push-button latches are set too tight, they can jam. This is easy to test; when a latch jams, just push on the door hard and see if the latch will work properly. If so, you just need to adjust the catch to be closer to the latch.

I'm not sure if it works with newer V/N's, but turning the key past the "accessory" position to the "on" position, then holding the lock button on the fob for 30 seconds, will re-pair the fob with the chassis, at least on older models. It's quick to try, so you don't have anything to lose.

Thanks for the suggestions! The dealer says they would have told me if they disconnected anything after the Epoch battery install. I did confirm that there is a MasterVolt device installed under the passenger seat. Did not take the seat off to get a better look yet. I assume its a MasterVolt ChargeMate Pro 40. According to the WB schematic, the required wires to connect the new solenoid and relay are already in the factory harness. Still learning....
Regarding the latches, I will try your suggestion to remedy the PB binding.
Will also try the fob reset. I like that feature for all 3 doors lock/unlock!

 

[Morich]

I find one of the easier and quicker ways to get info on what parts my specific RV may have is to go to the interactive parts catalog. It saves me crawling around to look!

Parts Catalog

But it does require some basic info on your RV to get the correct listing info.
In your case is shows this:

Looks like there was a supply problem for a bit and they used what they could get for a time?
But for the wiring issue, they are pretty much the same. One is solid state while the other used relay contacts.
Lots of small points that can change the answers, though.
Good luck on the chase!

 

[Bucket List Navion]

I find one of the easier and quicker ways to get info on what parts my specific RV may have is to go to the interactive parts catalog. It saves me crawling around to look!

Parts Catalog

But it does require some basic info on your RV to get the correct listing info.
In your case is shows this:
View attachment 1952792
Looks like there was a supply problem for a bit and they used what they could get for a time?
But for the wiring issue, they are pretty much the same. One is solid state while the other used relay contacts.
Lots of small points that can change the answers, though.
Good luck on the chase!

Thank you for the tip. I have been looking at the electrical and plumbing diagrams.

 

[Morich]

Yes, on using all the diagrams we can find as each may present the info in different forms and what one method skips may be there when looking at the other info.
For instance the parts listing are not in the interactive group but more what I call line drawings. You may get pictures of parts and the part number but they are not shown connected together! So to get a better idea of which part is connected tot he next, I have to go to the parts drawings!
I grew up in the age when we got directions with new things we bought? Sure do miss those days when we first got the directions, THEN tried to figure out how to use it. Now we get the item and seem to be expected to know how to use it without directions!

[EDITED CONTENT]

And a different point to mention when we are likely to be confused? Are you aware of option 22N on your specific RV?
I know very little about this newer solid state item and never looked at one in person, so just a thought for heads up!
This the correct one for you?

https://www.winnebago.com/Files/Files/Winnebago/Resources/Diagram/2020/000158614.pdf

If you have this version, there is a note referring us to option 22N. That option mentioned/involves having lithium batteries! Any chance you are set much better than some if you simply have the right set of options?
Any chance of cutting the headaches?
Sorry, pretty well blind and deaf on it from there on!

 

[creativepart]

Richard, I think maybe you are looking at the Wakespeed device for charging the Lithionics battery from the auxiliary alternator.

Since the OP doesn't have the Winnebago installed Lithionics battery (his dealer installed an Epoch) I doubt he has a second alternator or, then, a Wakespeed controller.

Here's a photo:

 

[Bucket List Navion]

Yes, on using all the diagrams we can find as each may present the info in different forms and what one method skips may be there when looking at the other info.
For instance the parts listing are not in the interactive group but more what I call line drawings. You may get pictures of parts and the part number but they are not shown connected together! So to get a better idea of which part is connected tot he next, I have to go to the parts drawings!
I grew up in the age when we got directions with new things we bought? Sure do miss those days when we first got the directions, THEN tried to figure out how to use it. Now we get the item and seem to be expected to know how to use it without directions!

[EDITED CONTENT]

And a different point to mention when we are likely to be confused? Are you aware of option 22N on your specific RV?
I know very little about this newer solid state item and never looked at one in person, so just a thought for heads up!
This the correct one for you?

https://www.winnebago.com/Files/Files/Winnebago/Resources/Diagram/2020/000158614.pdf

View attachment 1952837
If you have this version, there is a note referring us to option 22N. That option mentioned/involves having lithium batteries! Any chance you are set much better than some if you simply have the right set of options?
Any chance of cutting the headaches?
Sorry, pretty well blind and deaf on it from there on!

Thanks for the info! Our new Navion was sold to us with stock lead acid batteries. We had the Epoch 300 installed before we picked up the RV. Its my understanding that our harness has the wiring for the two new components required for lithium charging from the chassis. So yes the 22N does apply. I have learned that holes need to be drilled to mount the components. And the passenger seat needs to come off, then be properly torqued when re-assembled. I feel capable to do this mod, but don't want to have warranty issues later. So will probably have my dealer do the install. At $230/hr label, that hurts! Hoping for only 2 hours.
I really appreciate having the WB assembly diagrams available on the website to reference, but you are right. There is a learning curve. I don't like that there is no reference to who makes the parts. All you get is a WB part number and brief description. If they listed the part manufacturer, we could search the web to get a good understanding of what we are buying.

 

[Morich]

Yes, Definite holes in the whole set of info!
thought perhaps if the OEM sheet listing the options was on hand, it might be a small; step in sorting which wiring might be there, whether connected or not.
Totally agree with the Winnebago part number being a first step that often leads to nowhere!

But I often compare this sort of search as being like and Easter egg hunt. We usually have to look under ALL the bushes to be sure we are not missing the good stuff!
If the egg is not there, we have to move to the next bush!

 

[Bnystrom]

The one advantage I can see of having the dealer do the work is that you should have a warranty on the install. Make sure you confirm that.
Winnebago must have instructions for installing the parts, so I would call their customer service and ask if they provide them to you. The worst they can say is "no".

Regarding the passenger seat bolts, the heads have paint on them. If you reinstall them in the same holes they came out of, all you need to do is tighten them until the paint marks line up, and you're properly torqued.