sl 600 tranny oil/filter change
did it on mine no sweat--just like all the others. Rotate the engine to get to torque convertor drain plug and remove it. Unbolt tranny oil pan cover after you drain it too. Remove screws holding filter in place then reassemble after cleaning things.
Add 4 qts of new fluid (synthetic is best) start engine, then finish adding specified amount, reserving the last qt until it is warmed up and the oil level checked, then top up to level.
I recomend adding a pint of 'Lubeguard' as well--it aids tremendously in getting smooth clutch engagement and long life.