Green Valley roof bars on a DS3?

[Lerxst]

Hi.

A few years back I bought some Green valley roof bars for my 2013 DS3, there is a video
that shows how to do it but it just makes no sense to me, neither did the instructions, which I have now lost unfortunately.
From about 12 seconds in the guy puts these 2 parts either side of the stud in the recess in the roof strips, it's all wobbly and then as if by magic it's all solid later in the video.
I tried to follow the instructions when I had them but I could just lift the assembled roof bars off the roof with a bit of wiggling.
I tried emailing Green valley but no luck, can anyone point out how these bars actually attach to the roof? Thanks.

[GiveMeABreak]

I know it's of no help, but to be honest they look bloody awful and not very robust at all. Especially those silver vertical 'fixings' that just seem to go either side of the round stud. The finish is awful too.

If it was my DS3, I'd get a proper set of DS3 bars. Citroen do a whole range of transport options for these, including roof boxes, bike racks and ski holders etc. The standard DS badged roof bars cost £229 inc VAT and look a darn site nice and easier to install.

Best thing is you can sell them on later if you no longer need them.