ON my '95 E320, there were 15 bolts that hold the valve body to the transmission and 3 of them are a different length and are also a different color. Just be aware and put them back where they came from. You would probably find it helpful to read the section (pg 57) about valve bodies in this repair manual for the 722.3 and 722.4 transmissions.

is another one that may be helpful.

I second the part about doing this inside in on a clean surface with good lighting and take lots of pictures of how things come apart. I used a large dining room table and arranged all of the parts like an exploded view as I disassembled. I then washed each part separately using two small containers of mineral spirits. Wash in the first and rinse in the second. As soon as the rinse starts to get contaminated, throw away the solvent in the wash container, use the contaminated rinse as a new wash and pour clean solvent for the rinse.

Some of the pistons and springs are a little tricky to remove and be very careful not to scratch any of the bores. This took me the better part of a day. When reassembling, dip the parts in clean ATF.