NHTSA Complaint #11664440 — 2016 BMW X1

About 24 months back the sunroof curtain of my BMW X1 started having problems when I retract or operate it. It used to make stretching noises when I tried to open my sunroof and after a few times I heard a crackling noise and before I can stop it the curtain tore. Initially it was a small tear, so it did not bother much but over time the curtain completely left the guide/rail on one side and started sagging. Given it is a sunroof the curtain is as long as the vehicle and so now it is sagging to a point that it obstructs driver's visibly in back mirror. BMW won't do anything about it saying it is out of warranty and ultimately to avoid accidents I had to remove the curtain completely. I also tried getting it fixed, but the issue is not just the curtain but the rails of the curtain which is a non-replaceable part :( I would have to replace full sunshade assembly which is upwards of $1600. Also, it seems to be a common problem with these vehicles. Here are more examples of it: [XXX] . Please help me and other drivers be safe on the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)