Originally Posted by Tutaki
Howdy I was changing the oil in my 2006 640 adv dropped the oil in the frame, the drain bolt which is got to when the spin off oil filter is removed. No probes oil came out. When it came to screwing the bolt back in. There was nothing to screw it to. I am very sure nothing fell out when I undid it. Nothing on the floor. I cheeked the oil I changed nothing there. I have looked in the parts manual there isn't any insert or bush. Dose anyone know what that bolt screwed to?
Are you sure you're trying to put the right bolt back in there? Unless the threads came out when you pulled it I can't imagine what happened. That would usually only happen with aluminum or magnesium though.