Is it normal for the production dates of new car glass to be different?
2 Answers
It is normal for the production dates of new car glass to be different, as long as the glass production date is earlier than the vehicle's manufacturing date. Car glass is uniformly procured by manufacturers from suppliers in advance for vehicle assembly. Due to different procurement batches, the dates will naturally vary. Unused glass from the same batch may be installed on the next vehicle. Method to check the production date of car glass: Look for the trademark in the corner of the glass, which consists of dots and a number. The number represents the production year, while dots on the left indicate the first half of the year, and dots on the right indicate the second half.
I often discuss new car issues with friends, and it's actually quite common in the industry for glass production dates to vary. During automobile manufacturing, components come from different supplier batches, and glass is no exception. For example, the production dates of a car's windshield and rear window may differ by several months because factories randomly match parts when purchasing inventory. From my personal experience, this doesn't affect safety or performance as long as the glass is securely installed without cracks. However, if the date difference is too large, such as exceeding half a year, it's worth asking the dealer whether the vehicle has a repair history. Overall, there's no need to overly worry about this detail as manufacturers conduct comprehensive inspections before delivery.
