2016 Mercedes-Benz S-Class VISIBILITY/WIPER

HEARD A LOUD BANG WHILE DRIVING DOWN THE HIGHWAY AND DIDN'T KNOW WHAT IT WAS UNTIL RETURNING HOME AND LOOKED UP AND SAW THE RIGID CRACK FROM FRONT TO THE BACK ON THE PANORAMIC GLASS. THERE ARE NO INDICATIONS OF DEBRIS HITTING THE GLASS AS THERE ARE NO CHIPS.

VEHICLE'S FRONT WINDSHIELD SPONTANEOUSLY CRACKED OVERNIGHT WHILE VEHICLE AS PARKED IN A LOCKED PRIVATE GARAGE. CRACK ORIGINATES AT TOP OF WINDSHIELD FRAME WHERE BODY TORQUES THE GLASS AND CONTINUES THROUGH ADVANCED DRIVER ASSISTANCE SYSTEMS, ENDING UP IN DRIVER'S LINE-OF-SIGHT. NO VISIBLE POINT OF IMPACT ON DAMAGED AREA OF GLASS. DRIVER ASSISTANCE AND SAFETY SYSTEMS ARE AFFECTED BY THE STRESS CRACK, RENDERING THEM NON-FUNCTIONAL. DEALER INVESTIGATED AND DETERMINED THAT STRESS CRACK WAS DUE TO A DEFECT IN MANUFACTURING AND INSTALLATION OF THE GLASS, NOT DUE TO ANY IMPACT OR ROAD DEBRIS. HOWEVER, MANUFACTURER DENIED COVERAGE UNDER NEW VEHICLE WARRANTY (4YR./50,000 MI), STATING THAT GLASS DEFECTS ARE ONLY COVERED FOR 1 YR/12,000 MI. *TR

I AM REPLACING THE WINDSHIELD FOR THE 3RD TIME, SMALL STONES CREATING HUGE CRACKS, SEEMS VERY UNUSUAL FOR IT TO HAPPEN SO OFTEN.