A few more details would be helpful. Did the engine sieze or did the power just cut out? Do you have an automatic or a 4-speed?
Can you turn the engine over with the starter today, or by hand? How much oil is in the engine, on the dipstick?
What was the engine temperature at the time of the event? Are the belts ok?
A little more information might help get to the root problem, but someone in the area can pipe up with a recommendation for a shop. Good luck, Jim
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
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)