I just did mine this weekend. I HIGHLY recommend getting a pump and hose for the bottle...I only had the pump, and it was quite the contortion act. I am known to do things illogically, though..
Not sure how the SDL is set up, but even with the long, pointed tip bottle, I wasn't able to reach the filler hole because my exhaust was in the way.

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Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k