am i the one one who is concerned that (no offence) someone who doesnt know how to R&R a steering arm is going to strip an auto box from a mercedes????
i count myself as a competant mechanic - been mucking about fixing bikes from 14 or 15, cars fro the last 5 years, degree in engineering, and I don't want to strip a merc autobox.. fix a leaky seal, yes - but not strip it!
try cleaning the box (when on a ramp / pit) and try to identify the exact location of the leak first?
go buy a cheap digital camera, and take pics of bits and ask before doing stuff - its no bad thing to ask first, we all have to learn sometime...(incidently - get one with an lcd screen - i have used my camera as a sort of endoscope - take a 'blind' picture of what you are trying to see, then review picture on screen - this allows you to see round corners)