Also, keep in mind that if your air bag is not serviced by authorized technicians, I do not recomend you let anyone else drive your car. If there is an accident and they are injured, and the air bag either didn't work at all or added to injury, YOU are liable. Air bags are touchy things. I know the economics may not favor doing things the right way, but you must consider all angles when dealing with air bags. There are federal laws governing these things. I would not want to mess with them.