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      10-25-2019, 08:41 PM   #25
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Unlikely BMW manufacturers the bearings themselves. The thin "shell" bearings.

Engine block, bearing caps and crankshaft are often machined in the engine assembly plant. I know with 100% certainty that some automakers do this, not sure about BMW.

This means the engine is in fact "manufactured" or "produced" or "made" in the engine assembly factory, by virtue of the boring and grinding (metal removing or "machining") operations on site.

Bearing shells are not machined during assembly.

For engines that come from their own engine factories, BMW is responsible for the complete engine design and manufacture, and specification of all subcomponents, such as bearing shells.
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