How to Identify the Manufacturing Date of Car Glass?
2 Answers
The method to identify the manufacturing date of car glass is: 1. Look at the code at the bottom left or right of the car window glass; 2. The number represents the year, and the dots represent the month; 3. If the dots are in front of the number, it indicates the first half of the year, and subtracting the number of dots before the number from 7 gives the month in the first half of the year; 4. If the dots are behind the number, it indicates the second half of the year, and subtracting the number of dots after the number from 13 gives the month in the second half of the year. The maintenance methods for car glass are: 1. Use automotive-specific glass cleaner; 2. Apply high-quality sun film to the car glass; 3. Purchase glass insurance; 4. Regularly clean dirt from the car glass; 5. Cover the front windshield with something when parking outdoors in winter.
As a seasoned used car buyer, I find checking the glass production date quite practical. You can usually find small black dots or numeric codes in the corners of the windows. The number of dots represents the last digit of the year—for example, five dots could mean 2015 or 2025, since the codes cycle. The numbers indicate the month, and you can easily confirm this by checking the label. This trick has helped me avoid buying accident-damaged cars multiple times—if all the glass dates match, it proves they're original; if they differ, it means the glass has been replaced, possibly indicating prior issues. I also like to bring a magnifying glass for a thorough inspection to ensure safety, as aged glass can impair visibility. Always clean the windows properly before checking, and don’t overlook any corners—this is crucial for maintaining driving safety.
