I just replaced my inner door handle assembly with a Febi from autohausaz. Straighforward job overall, with the exception of getting the allen bolt that goes through the opening on the side of the door to align with the stationary part of the outer door handles. Took me about an hour of finagling before I found a way to get the bolt to align with the thread inside the outer piece. But once I got it, the slack in the line is gone, and the door handle works again. Now to tackle the window regulator problem...

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2003 X5 4.4i
1992 Porsche 968
2007 328i
2014 Subaru Forester XT