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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (HVAC - Climate Control System - General Information And Diagnostics (Hybrid)) >> Description And Operation >> Climate Control System >> Auxiliary Coolant Flow Pump

Auxiliary Coolant Flow Pump

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An auxiliary coolant flow pump is used only on hybrid vehicles to improve engine coolant circulation, for heater operation, at low engine speeds or when the engine is OFF.

For a complete explanation of the auxiliary coolant flow pump refer to HEATING AND VENTILATION .