Warning Light On problems of the 2001 BMW X5

The airbag warning light on the instrument cluster turned on when I had a passenger in the front passenger seat of the vehicle. It would go off after a few start cycles with no passengers, but then come back on the next time a passenger was in the front passenger seat. I was able to read the codes which indirectly indicated a fault in the occupancy sensor mat in the front passenger seat. I replaced the sensor mat and related wiring interface and the warning light and errors have not returned. There are many owners groups that discuss the apparent high failure rate of these occupancy sensor mats and we have noted that more recent X5 models were recalled, but that earlier models were not. I suspect that the earlier models have the same - or a related - problem.