As I was driving, sunroof suddenly exploded. My screen was partially opened. The sunroof itself was closed. I did not observe anything to hit the car, I did not hear any road debris hit the car. The glass shattered inside the vehicle over myself/my person, also my passenger in the front passenger seat, who is my son. I was so startled and in shock, but able to pull over to a safe area. Glass shards were noted to be down my shirt and pants. Glass shards were noted to be in items that were in my car rear seat. Also on my child. We were able to remove the glass from our person with very minor knicks as expected when handling glass material. There was no warning regarding any component failures or warning lamps, no sounds from the road, and no observed debris hitting the vehicle. It was about 613pm on Tuesday December 31, 2024. The weather was clear, no rain or extreme temperatures. As soon as I was in a safe place, I placed call to Mercedes-Benz at 658p. I was advised to take vehicle to dealership to be inspected as soon as possible. I took the vehicle in at 730am on January 2, when my local dealership was open for business.