The new features of “engine generation III” as opposed to “engine generation II” are as follows: |
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| Chain-driven oil pump beneath crankshaft drive. |
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| Modified front sealing flange. |
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| Modified oil routing in cylinder head; originally with oil supply pipes on camshaft bearing caps, subsequently replaced by integrated oil passages in camshaft bearing caps |
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| Modified sump (top section) with liquid gasket. |
An external distinguishing feature of the “engine generations II” and “III” is the shape of the cylinder head cover: |
A - | “Engine generation II” (to approx. 04.1997) |
B - | “Engine generation III” (from approx. 04.1997) |
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