Same issue with pano roof on a w205 c300 2016
[QUOTE=jan.samcik;8746363]Hello, i have a problem with my sunroof. Two months ago, i found that my slider guide on sunroof on driver side is broke. So i manually closed the sunroof and decided not used it. Meanwhile i ordered replacement made on 3D printer, just clip it in. But unfortunetelly my sunroof doesn’t open and sunroof motor made sound like machine gun. I tried open it manually, but roof not opek at all and the front part of the driver side, where slider guide is missing, remains stuck. Any suggestions?[/QUOTE
Have you had any luck opening your roof ? Mine will only slightly open on driver side....I hesitate to force it on passenger side to avoid breaking the glass. Went to stealership and they quoted me $3100.00cdn to replace both rails even if driver side looks good. Complete ripoff they should extend warranty on these defective parts. I will probably trade it for BMW or Audi. And never again Mercedes. Good luck