Unfortunately I haven't ordered the springs, due to other priorities, so I don't know for sure.
Looking at the video and comparing it to the pictures from a vendor page here in the US. Seems like the springs should sit on the outside? Since your in Europe may want to email MSS directly to see if something is wrong?
https://www.torqued.io/mss-bmw-5-ser...8aArAlEALw_wcB