FWIW… BMW of North America has issued a stop sales of all CPO and used BMWs affected by the airbag recall to all dealerships. So unless the airbag has been replaced, no BMW dealer is allowed to sell any preowned BMW that has been affected by the recall.
I believe CarMax also has done the same.
There’s estimated 800k BMWs affected by this recall and it seems like parts will only start to be available in limited quantities in August of this year, with preference given to regions in hot and humid climates and to older vehicles