Oil filter cap o ring leaking

[bimmer848]

Gang, hoping for some insight as my search could not find a duplicate problem. I have been through three oil filter cap o rings trying to stop the leak. I just changed my oil about two weeks ago and dont drive the X much but i noticed some oil underneath and i had lost enough for thr low oil ligt to come on. Inspected it and found the cap weeping oil so i replaced it, twice without luck. I try it just past hand tight, i tried it over tight. I don't have a tq wrench, but i have owned 10 bimmers over the years, did oil on all of them with no issues. It's my third time doing oil on the X and this has never been an issue. I start the car and when the pressure builds up I see it start to weep. I even heard/watched it pop once, then the flow.. I'm at a loss. Is it too much pressure? All is/was fine before the oil change. Any advice is appreciated! (other then buy a tq. Wrench! It's on my list!!)

Cheers