Changed it today all went fine, I used Mobil 1 Synthetic ATF.

I also changed the gear oil using Mobil 1, but I am thinking of changing the gear oil again soon, I read on some of the threads that it might act as a cleaner and clean all the old sludge out, so I will drain in a few weeks and fill with clean gear lube.

Thanks for all the help

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1993 400SEL (W140) 281K
1999 S500 (W140) 163K (Sold)
2002 S500 (W220) 72K
1999 S500 (W140) 88K
You cannot simultaneously prevent and prepare for war.
Albert Einstein (1879 - 1955)