High Quality Content by WIKIPEDIA articles The BMW M50 is an I6 piston engine. It was introduced in 1990 to replace the BMW M20 in the new 3-series and was replaced by the BMW M52 in 1995. Displacement ranges from 2.0 L to 3.2 L. It is a DOHC 24-valve engine. A Technical Update or M50TU version from 1992 introduced VANOS variable valve timing.
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