I've never done a pull on an MB, but in the past I recall reading in most of the manuals that you pull the engine and tranny together. It is my understanding that this is the recommended (read: EASIEST) procedure. Maybe others with firsthand experience can share it.

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280