Removal of Air Bag: 126 A/C Repait

[howardjnl]

Folks,
I have a 1991 560SEC that is not cooling so well in spite of everything has been checked out EXCEPT the return air flap under the dash. It's venting much air through the defrost vents, it's cool, but not cool enough for summer use (Virginia), and displays symptoms I see others mention in this forum as could be related to a potential problem with the return air flap.
My question: how do I remove the passenger side air bag? I've seen mention of a single bolt/screw holding it in. But I can't locate where the screw is, what I have to do to unfasten the unit, etc. I know to disconnect the negative battery terminal first and how to get the bottom of the dash and bottom front "bumper" off.
Any help would be appreciated.
John