Re:Ferrari is bricked during upgrade due to no mobile recept...
by t0mas88 on Monday October 12, 2020 @03:01PM
(#24758095)
They are tested without belts to ensure the airbag doesn't kill idiots not wearing their belts. But on all modern cars they're designed to work together with the seatbelts.
If you unplug the cable at the bottom of a BMW seat (so it doesn't know the seat occupancy and belts) it will disable the airbag and show an airbag light.
According to FMVSS 208, they're tested using an unbelted 50th percentile size male dummy. That's the reason they deploy with more force and are triggered at lower impact speed had they been designed with belted occupants of varying sizes in mind.