Engine Cooling - INGENIUM I4 2.0L Diesel (G2174765): Overview

The engine cooling system maintains the engine within an optimum temperature range under changing ambient and engine operating conditions. The system is a pressurized coolant expansion tank system with continuous bleeds to separate air from the engine coolant and prevent the formation of air locks. The engine cooling system also provides:

• Heating for:
  • The passenger compartment For additional information, refer to: HEATING AND VENTILATION . FUEL FIRED BOOSTER HEATER
  • The electric throttle. For additional information, refer to: INTAKE AIR DISTRIBUTION AND FILTERING .
• Cooling for:
  • The oil cooler For additional information, refer to: ENGINE .
  • The engine For additional information, refer to: ENGINE .
  • The Automatic Transmission Fluid (ATF) cooler For additional information, refer to: TRANSMISSION COOLING .
  • The charge air cooler For additional information, refer to: INTAKE AIR DISTRIBUTION AND FILTERING .
  • The turbocharger. For additional information, refer to: TURBOCHARGER .

The primary components of the engine cooling system are the:

• Variable coolant pump
• Electric thermostat
• Radiator
• Electric cooling fan
• Coolant expansion tank
• Engine oil cooler
• Cylinder block inlet tube
• Auxiliary coolant pump
• Separator
• Connecting hoses and pipes
• Charge air cooler
• Charge air coolant pump
• Charge air radiator
• Auxiliary radiator
• ATF cooler
• Thermostatic valve - ATF cooler
• ATF warming valve

In cold climate markets, an active grille air shutter is installed to reduce aerodynamic drag and engine warm up time.