How To Make the Filling Adapter
The OEM BMW tool PN: 34 1 580 costs approximately ~US$200 dollars. Here you will find instructions on how to fabricate an equivalent device for ~US$30 dollars. The original idea for this tool came from Brian Rozema (rosemab – on the www.bmwsporttouring.com list). Many thanks to Brian for taking the time to research the parts and construct the original tool.