Our 2023 5.0 didn't have the option for the new acrylic windows, so we got the frameless split window for the rear window. After hearing about a fair number of issues with the frameless windows, and not being particularly happy with the view through it (dark and the bar down the middle), or the limited opening ability, and especially with the cheap screens that didn't seal the window and let in small bugs, we decided to order an acrylic rear window from ETI. They shipped it promptly, but it took a while for me to put it in, mostly from trial and error and limited free time. It is now in and we're very happy with it!
Love our new rear acrylic window! Love that it's lighter, love the clearer view, the ability to open all the way, love the blinds/screen system!
Many thanks to
Johnny Hung for pioneering the way, though it turns out there are some differences between what he installed and what ETI sent me. I thought it would be the same as the Arctic Tern window, and it's also similar, but these are made in China and have some differences.
I can only upload 8 pictures at a time, so I'll add more in the comment.
1: Original window
2: Removed the valance, screens and blinds (not easy to release from the hooks).
3: Test fit. These windows are flat on the outside, not a bubble like some other models. I like that.
The window is slightly smaller, but the frame will cover the cutout. The window came with butyl tape sealer around the edge, but it was dirty, so I removed it and added new tape.
4: Inside fit look. Love that wide open view.
There are 5 closing locks. The handles have two settings. All the way tight in seals the window. But there is a second tab, so that if you lock them in the middle, you get a thin gap that could be good for allowing airflow while you drive without worrying about the window flapping.
The two arms have tabs that hold the window open by pressure (grabbing the bar), so you can set them at any opening height.
5: The cutout after removing the glass window.
6: The acrylic windows need a 3/4" thickness for the frame to grab onto. The glass window uses a much thinner frame, so you have to remove the old frame. It separates easily, just go slow and careful.
7: The original thin frame, removed.
8: The frame I created out of 1"x2" (3/4"x1 1/2" actual) poplar. They say not to use plywood, as it is not stiff enough.
I used 1 1/2" corner braces inside the frame. Don't do that. I had to remove them because they prevented the inner metal frame ring from setting properly against the window frame. They're handy for getting it in place and gluing to the shell, though.
More to come...
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