I have a 79 280CE, been in the family for 20 years, clocked almost 220K. It has been just as reliable as any diesel W123 with the proper maintenance. Not so good on fuel(16MPG) but lots of fun to drive.

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg