Airbags can be had from similar BMW in junkyard that have not deployed. Check around.
I think maybe your airbag light will stay lit for awhile but there is some way I think you can reset and clear it.
Edit: Check with Car-Part.com in your local area in your State. Good Luck Mate.
Last edited by new_kid; 02-01-2013 at 09:07 AM.