Thanks for posting the video! I was dreading changing my AOS. So glad to hear that it took you only 15 minutes. No jacking up the car, no removing the wheel to make room, ...
Your video is great, very helpful I did a CCV valve which is pretty much the same thing on an E46 they just call it the crankcase ventilator valve it's an air oil separator just of a different name but I did that and it was harder than this. This is actually very easy looking compared to the BMW 3 series CCV.