What is the date representation method for car seat belts?

[DelLukas]

Car seat belt date representation method is: The digits following the English letters in MFDDATE indicate the production date. If MFDDATE is followed by a combination of letters and numbers, it means the 17-digit coding rule is used, which is the Vehicle Identification Number (VIN). The tenth digit of the VIN is related to the date. For example, A0527, where A represents 2010, so combined it means the production date is May 27, 2010. Car seat belts are safety devices designed to restrain occupants during collisions and prevent secondary collisions between occupants and components like the steering wheel or dashboard, or to avoid injuries caused by being thrown out of the vehicle during a crash.

[ValentinaFitz]

After so many years of repairing cars, I've often been asked how to check the date on seat belts. Actually, it's quite simple. Near the base of the seat belt or close to the anchor point, you'll find a small label with a string of codes. The date is usually represented by four digits, such as '4218', meaning the 42nd week of 2018. Some use a combination of letters and numbers, where the letter represents the year—for example, A stands for 2010, B for 2011, and so on—while the numbers indicate the week. However, different brands may vary slightly. For instance, some Japanese cars use a straightforward four-digit number, while European or American models might start with a letter. Seat belts have a lifespan, typically around 10 years, so checking the date helps determine if it's time for a replacement. I recommend paying attention to this date because seat belts are lifelines, and an expired one is no good.

[VonLukas]

As assessors, we always check the seat belt date when inspecting used cars. If the seat belt date doesn't match the vehicle's production date, it may indicate the vehicle was involved in an accident and the seat belt was replaced. We typically unfold the seat belt to locate a set of codes at its base or on the label. The format is usually a combination of week number and year, for example, '3217' means the 32nd week of 2017. If the date is significantly later than the vehicle's production date, it should raise a red flag. So when buying a used car, you can also check this date yourself as one of the criteria to judge the vehicle's condition. Generally, the vehicle production date can be found on the vehicle's nameplate, and when compared with the seat belt date, the difference between the two shouldn't be too large.

[DeEdward]

I didn't know seat belts had manufacturing dates either until a technician pointed it out during maintenance. It's located on the section near the buckle—just flip it open to see a small tag with numbers and letters. Mine says '2419', which I found out means it was produced in the 24th week of 2019. Knowing this date is quite useful because seat belts have a lifespan too, generally around ten years before you should consider replacing them. So, it's a good idea for everyone to check their car's seat belt date to stay informed.