I'm not sure -- there have been MANY changes to these engines over the years, and I'm not conversant with the later ones.

I'm guessing minor, but cannot say for sure. Remember, this engine started life as a cast iron block D-Jet engine, and ended up with an aluminum block and KE-Jet, possibly LH-Jet!

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!