How to Check the Manufacturing Year of Car Glass?
2 Answers
Car glass manufacturing year can be found in a row of codes at the bottom left or right corner of the glass. Car glass is an essential component of vehicle body accessories, primarily serving a protective function. Car glass is categorized into: laminated glass, tempered glass, and zone-tempered glass, all capable of withstanding strong impacts. Based on their location, car glass is classified into: front windshield, side window glass, rear windshield, and sunroof glass. Methods for de-icing car glass in winter: 1. Use a plastic scraper or glass frost shovel; 2. Spray de-icing snow remover; 3. Open windows for ventilation after parking; 4. Turn on the car's air conditioning for warm air.
I paid extra attention to this detail when buying my own car, since it can reveal if the vehicle has been tampered with. That tiny string of characters in the corner of the window hides the year code! Generally, there's a two-digit number representing the year—for example, '20' means 2020, and '21' means 2021. The key is to observe the position of the black dots around the number: if the dots are before the number, it indicates production in the first half of the year, and the month is calculated by subtracting the number of dots from 7; if the dots are after the number, it means the second half, and you subtract the number of dots from 13. For example, '20' with two dots in front would be 7-2=5 (May), while '20' with one dot behind would be 13-1=12 (December). Different car manufacturers may have slight variations in their marking systems, so you can take a photo and look up the production codes for the specific brand online. If the glass production date is much newer than other components, it's likely a replacement after an accident.
