I can't say I've ever had to do that on either of my W123s. The closest I'll come to that (hopefully) is covered in the CV boots page, removing the axles.

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Jeff M.
Mercedes W123 DIY pages are now located here.
1983 / 1984 300D Sold
2000 CLK430 Cabriolet ~58k Sold
2005 Avalanche 4x4 ~66k