This site has some good articles and information that may help. To include removing the fan. v12uberalles.org I would just remove the radiator to make your life easier and reduce the possibility of damaging anything else. The key is to remove as much crap out of the way as possible. I have also have a 1995 S600... great car just a little quirky.

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1989 560SL
1986 300SDL
1983 300D (Burning Jet-A)
1982 240D
1995 S600