adiaw83,

How much nipple is sticking out of the caliper? Since you apparently had the nipple loose already, this should not be the kind of disaster resulting in a new pair of calipers (you should replace them in pairs to avoid any differences in performance should you mismatch brands, etc.). An easy-out is a name for a tool used to extract broken, male threaded fasteners. They work by drilling a small pilot hole and then screwing the tool into the pilot hole - the tool has a left handed thread so as it screws in it imparts a torque in the direction that unscrews the remnant. They are not something I ever mastered, as an off center hole, etc. can make them difficult to use successfully. And often, in the case of a rusted fastener using an easy-out is not likely to be any more successful than using the original bolt, as by necessity they are significantly smaller in diameter.

All that is moot though, since your bleed screw remnant already has a nice hole in the center and it should not be frozen in place by corrosion. So, go to Sears, ask for an easy-out kit (you typically get a couple sizes) and get the remnant out. The local dealership should have bleed screws, as should NAPA or some other car parts place. You need one with the correct thread, so if you go to a parts store, bring the old one with you to measure and make sure you get the right part. I do not think there are a million kinds, shapes or sizes for these things though. But, if all else fails, visit a junk yard and bring some liquid wrench or other penetrant. Good luck, and sorry about your misfortune. Jim

__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)