I changed the fuel filter on my 06 Mini Cooper S and I replaced the O rings and gasket along with the filter itself. Now it won't start even after I primed it several times. I know I put the gasket on right and I know there is no air leaks from there. I remove the fuel line from the filter housing and my pump pumps the fuel out fine so I know the fuel pump is not the problem. My line is just not wanting to get pressurized. I have a full take of gas as well. Any ideas?

 

I had the same issues with the starting, make sure that you properly place the lid on. I just jammed it in, but you have to put it in, and twist so that it locks properly. Same way that you took it out. Hope this helps.

 

Sounds like you either omitted the sealing o-rings inside the filter housing or they didn't seat properly. You'll need to take it apart and make sure the o-rings are where they need to be.