Engine Cooling - INGENIUM I6 3.0L Petrol (G2497429): Overview

The engine cooling system maintains the engine within an optimum temperature range under changing ambient and engine operating conditions. A pressurized expansion tank system is used which continuously separates the air from the cooling system and replenishes the system through a hose connected between the expansion tank and the thermostat. A continuous vent into the expansion tank, through a hose connected to the engine, prevents air locks from forming in the cooling system.

The engine cooling system also provides cooling for the following:

• The engine oil cooler
  • For additional information, refer to: DESCRIPTION AND OPERATION .
• The ATF  cooler
  • For additional information, refer to: DESCRIPTION AND OPERATION .
• The charge air cooler
  • For additional information, refer to: DESCRIPTION AND OPERATION .
• The turbocharger.
  • For additional information, Refer to: DESCRIPTION AND OPERATION .

The engine cooling system also provides heating for the following:

• The passenger compartment
  • For additional information, Refer to: HEATING AND VENTILATION .
  • For additional information, Refer to: FUEL FIRED BOOSTER HEATER .
• The electric throttle.
  • For additional information, refer to: DESCRIPTION AND OPERATION .

The primary components of the engine cooling system are the following:

• Connecting hoses and pipes
• Variable coolant pump
• Radiator
• Electric cooling fan
• Coolant temperature sensors
• Coolant expansion tank
• Electric thermostat
• ATF  cooler
• Active grille air shutter
• Engine oil cooler
• Connecting hoses and pipes
• Charge air cooler
• Charge air coolant pump
• Charge air radiator.

In cold climate markets, an optional block heater is available as a Retailer/Authorized Repairer fit accessory. The block heater is located in the cylinder block and is connected to a power supply though an external plug.