I have noticed that my airbag light sometimes comes on. It normally happens when I have a heavier passenger in the front. When my wife sits there it is fine, however when my mate sat there yesterday it came on and stayed on, but then after switching of the car for a while the light didn't come back on on the way back.
I just bought the car and was told by the previous owner about this problem. He also said that it would only happen when a heavy person sits in the passenger seat.
It was suggested to me that it can either be a problem with an occupation sensor or the seatbelt pre-tensioner is that right? any other ideas?