These glasses are planted in the seals of the body openings with a special glue. Replacing such a non-rolling glass is a difficult and time-consuming task that is hardly within the power of a car enthusiast. Without sufficient experience, it is difficult to achieve watertight joints. In addition, the risk of glass breakage is high (especially the laminated windshield). In view of this, it is strongly recommended to entrust this work to a specialist.