What is the reason for frequent scratches on the window glass when rolling up and down?

[StSilas]

The reason for frequent scratches on the window glass when rolling up and down is: there is sand and dirt inside the window rubber seal, which causes friction when the glass moves. The solution is to replace the rubber seal or clean it. The maintenance methods for window glass are: 1. Use a soft cloth when cleaning the car; 2. Use more glass cleaner to wash the glass. The window is an important part of the entire car body, serving to meet the needs of interior lighting, ventilation, and visibility for the driver and passengers. Depending on the installation position, the glass is divided into: front and rear windshields, side windows, and door windows. The window structure is usually a curved and sealed type, with rubber sealing strips connecting the window frame and the glass on the car body.