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The OM617 5 cylinder Turbo Diesel is found in some 1980 models and all 1981-1985 models in the 300 series.
Examples 300D-sedan 300TD-wagon 300SD-large sedan 300CD-coupe 300SDL-Luxury sedan
The letter"D" stood for diesel and "E" stood for gas. The MB 200 series were 4 cylinder cars.