Finally figured this out, there is one more bolt on rear side that needed to come out before the pump would budge. Once that came out, pump moved over easily and water pump also came out with no problems. Now I just need couple hours to put everything together. This is like so many jobs on these cars, if I had to do it over again, it would probably take me only half of the time.

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Treiberg's Collection: 1981 240D, 1985 300SD, 1992 300E, 1997 E300D, 2005 C230K