This seems like a good thread to ask my question in...
I'm planning on draining and flushing my coolant soon and I've seen reference to some washers that you are supposed to replace on both the radiator drain plug and the engine coolant drain plug. Does anyone have the part number for these, or should I not worry about it?
Is the engine drain plug item #3 in this diagram?
http://realoem.com/bmw/showparts.do?...88&hg=11&fg=50