As an aside, if you do head down this path, the link below has more reviews (and a lower price). Gotta love amazon these days.

Amazon.com: Mityvac 7201 Fluid Evacuator Plus: Automotive

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1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).