How to Identify the Production Date of Car Glass?
2 Answers
The production date on car glass is represented by numbers and black dots. Below is relevant information about car glass maintenance: 1. Physical De-icing: Car owners can prepare a hard plastic scraper or use a dedicated glass frost scraper, which is more convenient, faster, and keeps hands from freezing. When there is snow and ice on the glass, use the plastic scraper or glass frost scraper to remove it. However, experts remind car owners to prevent scratching the glass during de-icing. The plastic scraper or glass frost scraper should not be moved back and forth but pushed in the same direction. 2. Chemical De-icing: According to experts, there is a spray de-icer available on the market, specifically designed for thawing frozen car windows and wipers. It is a high-speed anti-ice spray concentrate that does not damage the car's surface and prevents re-freezing and dirt accumulation. It can easily remove ice and snow even at temperatures below -30°C.
I remember when I worked at the auto repair shop, helping customers identify the production date of car glass was a common task. It mainly involved checking a combination of small dots and numbers in the corner of the windshield or side windows. The typical format looks like ‘•2023’ or similar, where the dots represent the month—the number of dots indicates the month—and the numbers represent the year. For example, ‘•22’ means January 2022, ‘••22’ means February 2022, and so on. The markings are quite hidden and require careful inspection under light. Misinterpretations happen often—some people mistake the dots for dirt and wipe them off, making it hard to determine the year. I’ve even encountered cases where the dates didn’t match after a windshield replacement, requiring rework. I recommend taking a quick look during routine maintenance to keep track of the glass condition and avoid safety risks.
