1) don't know (early run?)
2) 717.430 (I think) http://www.jie.com/Mercedes/mercedes_benz_transmissions.htm
3) don't know (good sources)

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html