Michael is correct! the service life of the air bags have been extended to 15 years. MB issued a bulletin in 1993.
Only cars made from 1984 thru 1987 have bags that MAY or MAY not protect you in an accident.
NO laws as far as I know about replacement.
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)