Is it normal for the production dates of car windows to be different?
2 Answers
It is normal for the production dates of new car windows to be different, as long as the production date of the windows is earlier than the manufacturing date of the entire vehicle. Car windows are purchased externally and then assembled onto the vehicle. During installation, they are randomly selected from different production batches, so it is normal for the dates to vary. Here's how to interpret the production dates of car windows: 1. Currently, the most common method for indicating the production date on windows is a combination of numbers and dots, where the numbers represent the year and the dots represent the month. 2. The dots can be placed either before or after the numbers. Dots before the numbers indicate the first half of the year, and the month can be calculated by subtracting the number of dots from 7. 3. Dots after the numbers indicate the second half of the year, and the month can be calculated by subtracting the number of dots from 13.
When I bought a car before, I noticed that the production dates of the windshield and side windows were different, which is a normal phenomenon. During the production process, parts suppliers may not deliver components at the same time, leading to batch differences in glass parts. For example, the front and rear windshields might come from different manufacturers or different production batches, and a gap of a few months is generally acceptable. My own car was like this, and it ran without issues for years. If the date difference exceeds a year, you should pay a bit more attention to whether the glass has been replaced, such as new glass installed after accident repairs. For new cars, the salesperson should inform you in advance, and for used cars, you should check the date markings carefully. There are usually codes in the corners of the glass, like ·22· indicating 2022, with dots representing the month, making it easy to understand. In short, as long as it doesn’t affect safety, there’s no need to worry.
