Thanks for all your comments..
Today I was driving on the interstate and heard noises I thought were coming from the blower motor ,A/C was running.
My driver airbag deployed for NO REASON.. Wow what an experience, pretty freaky and the bag bruised up the inside of my left arm pretty bad.
Yes , I pulled onto the shoulder of the interstate ,turned off the car and had to sit for a few mintues. Did notice the white power you were talking about..
Had bought a used bag from a 1992 300E about 6 months ago, was going to replace the orginial, never got around to it till now.
Do you think this one will last a couple more years?
I also noticed that my seat belts don't retract now..I was wearing it..
From this experience I will now check the bags in any car over 10 years.

__________________
1993 Lexus SC300
1987 Mercedes 300E ..totaled out..
1991 Saab 900Convertible ..gave away..