I spent some time this rainy weekend taking the plastics off my new bike to install a Stebel, a PDM 60, and generally to see what's where. A few tips... The radiator cowl is held on by four screws and what BMW calls an expanding rivet. The rivet is at the inside and bottom of the cowl: To remove it, you have to punch out the center, as shown at around 45 secs in the video below. It took me a lot more than two taps, however. <iframe width="560" height="315" src="//www.youtube.com/embed/M491PG0Ghfg" frameborder="0" allowfullscreen></iframe> End result... It's a one use item, and BMW sells replacements at 2/$0.50. (Part no. 51 46 7 002 606.) I didn't have any on hand, so I used a zip-tie to reattach the piece when I was finished.