I also have wondered about the alignment of this mount. Thanks for asking the question.

Don't know if it's correct procedure or not, but what I do is reinstall in the same position as it was before disassembly. By looking carefully at the washer marks on the bracket, you can get it very very close...........

I suppose if the new mount is dimensionally different than the old mount was when it was new it may not work, but it's the best solution I could think of.

J. M. van Swaay

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1994 E320 Wagon, 230,000 miles
1995 E320 Sedan, 106,000 miles
1994 E500 Sedan, 79,000 miles