The production date of automobile glass is the first information that many second-hand car appraisers check. For example, if the window glass is too different from the vehicle's manufacturing date, it is generally believed that the window glass has been replaced. How do you read the date on the car window glass?

Simply put, the number represents the mantissa of the year. For example, the year number 8 on glass should be 2008. This is determined based on the vehicle's production date. The vehicle's production date is 2008, and the glass's production date should also be 2008. There are some small dots before or after the number. These dots are used to determine the month of production of the glass.

If the dot is in front of the number, it is the first half of the year. Subtract the number of dots in front of the number from 7 to get the month in the first half of the year. The dot behind the number is the second half of the year. Subtract the number of dots in front of the number from 13 to get the month in the second half of the year. There are up to 6 dots on each side. This identification method is suitable for most vehicles.