Laminated glass
The windscreen and panorama* roof have laminated glass. The glass is reinforced, which provides better protection against break-ins and improved sound insulation in the passenger compartment. Laminated glass is available as an option for certain other glass surfaces.
The symbol is shown on the windows where the glass is laminatedDoes not apply to the windscreen or panorama roof* which are always laminated and thus do not have this symbol.