Carrier/rack problems of the 2013 Mercedes Benz GLK350

My 2013 Glk350 was stationary and I was parked in my parents driveway in illinois. It was nighttime and I went to go close the panoramic roof since I was going inside and it was lightly raining. Temps outside were mild since it was may 27, 2016. When I went to close the roof I heard a crunch sound but did not notice it was shattered. I closed the sun blind and it wasn't until I opened the blind the next time may 28, 2016. My sister and I both looked up and noticed the glass was shattered. The rest of my family also noted the damage also and we took included pictures. I called mb USA at 800 367. 6372. Adam the rep I spoke to said I needed to take it to the dealership to see if it's part of a recall but when they looked it up there was no recall for my VIN?? I followed up with vanessa at the 800 and she said the same that svc guy did at dealership. I escalated my complaint for resolution, no objects or rocks, etc came in contact with the glass and the track was clear of debris. I looked on internet and noted several similar incidents of the glass shattering and some with glass exploding out or imploding??! mb is not claiming responsibility which I do not understand! I have escalated again and I am still waiting to connect with mb USA to discuss since this is clearly a defect. It doesn't matter whether you're stationary or moving this is a serious hazard. I had to get this repaired and cost me upwards of $1600 out of pocket. . But has cost up to $2k per incident. Come to find out this is not only happening to other car models and so far there are complains filed against kia and Nissan.

The sunroof on my 2013 Mercedes Benz glk 350 spontaneously exploded with no warning. Nothing hit the roof or any other part of the car. The weather was about 36 degrees farenheit, not too cold, not too hot. There was a loud bang (like the sound of a gunshot) followed by 5 - 10 minutes of crackling as the sunroof glass broke into hundreds of pieces. It appears to be the top layer of double-paned glass, as the glass did not fall into the car. I was driving about 35 mph at the time. There was nothing unusual that would have caused this.