Well they did update the new ones. Their is a metal sleeve in the top and bottom outlets. My old one cracked on the back side by the crimp, I hate this plastic junk. My Toyota did the same thing, but it only cost my $160 to fix that. The SDL's radiator set my back $395, plus $35 for a new fan shroud. All the other W126 radiators are like $200 but they had to make the SDL's different.
Just thought I'd share my latest expense. This car is lucky it has me, it would be in the junkyard being turned into another Honda if it wasn't for me and the time I put into it. (not to mention the $$$$$$) Oh well I feel better now, this is one lucky MB.