This DYI worked great for my 06 e90 330i. The only addition is I removed an additional bracket adjacent to the bracket mentioned in this procedure. Very simple, just a socket (14mm I believe).
I used Redline MTL per Mike Miller's "old school maintenance" write-up.
Also, I used a Pittsburgh Automotive pump here:
http://www.amazon.com/Pittsburgh-Aut.../dp/B006ZB8PDM
Worked flawlessly.