Hi burtajack,

I've attached a few links to our tech. articles on the climate control system. I hope this is helpful and will help you locate the blower for it. Best of luck!

Replacing the Climate Control Amplifier - Pelican Technical Article - Mercedes-Benz R107 - Replacing the Climate Control Amplifier

Bi-Level Climate Control Vacuum Switch Replacement - Mercedes-Benz R107 Bi-Level Climate Control Vacuum Switch Replacement | 1972-1986 - 450SL, 380SL, 500SL, 560SL | Pelican Parts DIY Maintenance Article


-Dmitry