Just did this on my 135i. Also installed the slon pan. Would appreciate if anyone can confirm the cyclic suction-like sound I am hearing is normal in Park (I didn't listen for "normal" before I changed the pan, oil, and both filters so I can't tell you if it was making this sound before). Test drive was fine but not knowing if the sound is normal now bothers me (even though you can't hear it in the car and have to put your head under the car to notice it). Any help appreciated!
BTW, anyone doing this - get 7L of FFL4...
