I recently bought a 2017 F60, and some of the pins that are supposed to hold the mud flaps in place are broken. Does anyone know the part number for these?

 

I think you’re talking about the expanding rivets, as I believe the OE mud flaps reuse the existing hardware holding on the part of the wheel well trim that the mud flaps attach to. I also believe there’s a screw on the bottom of at least the rear mud flaps.

Part # for the expanding rivets is 07147136172.