I wouldn't asume anything with MB as they have used various types of ATF over the years. Dexron/Mercon may be a safe assumption since that's what a local dealer told me I can use in my '85 300D. If I were you, I would make a quick call to your local MB dealer's service dept to find out for sure.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012