Engine oil cooler

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Engine oil cooling is implemented by means of an oil-to-water heat exchanger. In the variant for hot countries, an additional engine oil cooler is deployed.

Fig 1: Identifying Engine Oil Cooler Related Components

Courtesy of BMW OF NORTH AMERICA, INC.

Index	Explanation
1	Oil filter module
2	Thermostat
3	Oil cooler line
4	Engine oil cooler