I own a 1995 S350 with over 263,000 miles. Never bent a rod. Great car! I think the rod stories are overdone, but Mercedes did make the rods bigger in late 1994 best I can find out. My car had started running rough at idle and using more than the normal amount of oil. I just had valve guide seals, new timing chain, and injectors installed and that fixed my problem. I do not know exactly what the oil consumption is yet, but I have driven over 1000 miles since the job and it has not gone down on the stick any. The only other thing oil consumption wise that has been done, is the turbo had to be re-built.
Best source for a technical manual is Alldata.com. $14.95/yr. Mercedes has not published one yet. They still want you to take it to the dealer.

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1995 S-350
370K + SOLD
1952 220B Cabriolet
39K kilometers + SOLD
1998 E300D
310K +
2012 E350 BlueTec
120K