This is some great information. Actually the way they describe it in the BMW Bulletin makes perfect sense!
Putting it on Jackstands and accelerating until you are able to shift trough all gears is hilarious
Performed the oilchange yesterday night. Changed the oil twice in the progress, to get at least 90% of the oil changed.
Driven the car today for 30km and also checked the oil level once more to be 100% sure. The oil that came out is beautiful, picture speaks for it self!
Great success!