I did a little googling and found some 3D printer files
Good quality STL for Mercedes GLA GLC GLE 213 E200 E300 sunroof slider bracket for 3d Printing (PETG, NYLON) or nylon milling. Milling is a better choice.
C Class (W205) - DIY Panoramic Sunroof Clip Repair in Place - ****** UDPATE 6/20/22 ******** I've updated the material to a stronger carbon filled material that seems to be holding up quite well. I'm using a set on my personal vehicle and also have positive feedback from a number of other...