If you are filling your filter with anything, you need to find a way to put it in the right hole, which I believe is the center one. Otherwise, you are putting unfiltered fuel on the outlet side, which will go directly to your injectors. Keeping fuel out of the outlet side will be difficult without a device like that made by Racor (or is it Davco?) that threads in and funnels it only into the center. But I don't think they make one for M-B filters.
So I simply bleed the system using the hand pump after installing the filter.

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Now you're suckin' Diesel!

'88 300SEL
'92 300D 2.5 Turbo
'96 Lincoln Town Car. The Jazzmobile.