The
Formentor has roof bars in these pictures
You'd end up with an
Ateca with holes in the roof.
Can't say I'm into roof rails v roof bars. But what comes off are the roof bars not the rails unless you were taking the body apart. Perhaps your
Ateca had the bars fitted as an accessory. They are held with keys generally other than that we are talking rails. Bar goes across, rail goes along. Probable a mute point whether the bars are interchangeable... That's more the issue as to whether the top box etc is interchangeable. You need the measurements of the rail length I guess on the two vehicles and compare. If identical you would be in with a chance.
Screen shot of rails & bars.
Perhaps you do want the holes in the roof ?. All
Ateca's to my knowledge come with rails.
It's going to be in the maintenance body part pdfs.
You need this
Ateca manual to read. Buy yourself £7 worth of internet time on Erwin to download the manual.
To answer a lot of the technical questions of the
Ateca the full workshop manuals are available by an hourly or daily rate for download as PDF files. You can browse but can't download if you don't pay. https://seat.erwin-
store.com/erwin/showHome.do Circa 7 Euro's + VAT gives you the ability to...
www.seatcupra.net
Treasure trove of PDF materiel.