Sun/moon Roof Assembly problems of the 2014 Mercedes Benz GLK350

The contact owns a 2014 Mercedes Benz Glk350. The contact stated while driving at various speeds, there was a loud sound coming from the sunroof. The contact stated that there was no warning light illuminated. The vehicle was taken to the local dealer where it was diagnosed with the cassette part that needed to be replaced. The vehicle was repaired however, after retrieving the vehicle, the contact stated that an abnormal sound was coming from the sunroof. The sunroof glass shattered and glass shards fell onto the contact. The contact then took the vehicle back to the dealer where it was diagnosed that the sunroof needed to be replaced. The contact related the failure to an unknown recall. The manufacturer was informed of the failure and informed the contact that she would receive a callback. The failure mileage was approximately 180,000.