The BMW M21 is a straight-six diesel engine developed by the German engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine The first engines built there (in early 1982) were six-cylinder petrol units. Beginning in 1983, Ford was planning to buy 190,000 BMW turbodiesels over a period of several years. The naturally aspirated engine was fitted with ESC from 1989.
Models
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!Engine!! Aspiration !! Power !! Torque !! Redline !! Dates built
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|rowspan=3|M21D24
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