While cleaning my new 1990 90 20 v Quattro the other day I noticed that on the passenger side sin visor that it says the air bags need replaced after 10 years. What happens if I do not replace them? Is it just a reliability thing like having a .005% chance of failure after 10 years compared to a .001% chance of failure when new. Any one else heard of this? mark@afnetinc.com