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Home >> BMW >> 2012 >> X1 >> Repair and Diagnosis >> External Pages >> Different car >> Section 845 (Functional Descriptions - F25 - Cooling System, Engine Performance) >> Cooling System - Functional Description >> Engine cooling >> Cooling ducts

Cooling ducts

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The cooling ducts in the cylinder head are now also used for indirect cooling of the solenoid valve injectors. This means that coolant flows all around the valves and solenoid valve injector. This has reduced the heat contribution to the components. The cylinder liners are made of diecast aluminum. To optimize engine cooling, the bridges between the cylinders have grooves. Coolant can flow through these grooves from one side of the crankcase to the other and cool down the bridges.

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