Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: Engine Cooling - Ingenium i4 2.0l Diesel / Description and Operation

Land Rover Discovery (2009–2016) Service Manual / Powertrain / Engine / Engine Cooling - Ingenium i4 2.0l Diesel / Description and Operation

COMPONENT LOCATION

Engine Cooling - Ingenium i4 2.0l Diesel Description and Operation

  1. Expansion tank
  2. Coolant pump
  3. Oil cooler
  4. Fuel cooler
  5. Heater hoses
  6. Exhaust Gas Recirculation (EGR)
  7. Exhaust Gas Recirculation (EGR) cooler
  8. Charger air cooler
  9. Transmission fluid cooler
  10. Cooling fan
  11. Thermostat
  12. Coolant pump - electronic

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 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 (412-01 Climate Control, Description and Operation).

Cooling for:

  • The engine.

    For additional information, refer to: Engine (303-01B Engine - INGENIUM I4 2.0L Diesel, Description and Operation).

  • The engine oil cooler.

    For additional information, refer to: Engine (303-01B Engine - INGENIUM I4 2.0L Diesel, Description and Operation).

  • The automatic transmission fluid (ATF) cooler.

    For additional information, refer to: Transmission Cooling (307-02 Transmission/Transaxle Cooling, Description and Operation).

  • The exhaust gas recirculation (EGR).

The primary components of the engine cooling system are the:

  • Coolant pump - variable
  • Radiator
  • Electric cooling fan
  • Coolant expansion tank
  • Electric thermostat
  • ATF Cooler
  • Engine oil cooler
  • Connecting hoses and pipes.
  • Cylinder block heater

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

DESCRIPTION

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 Coolant Pump - Variable

Impeller Shroud Coolant pump housing Pulley Solenoid The coolant pump is located at the front of the cylinder block. A pulley is attached to the pump flange. The pulley is driven by the prim

 Electric Cooling Fan

Fan shroud Cooling fan motor Electrical connection Speed flaps An electric, variable speed cooling fan is installed in a shroud attached to the rear of the radiator. The cooling fan is operate

 Electric Thermostat

Thermostat housing Heater element Temperature sensor The electric thermostat independently controls the engine coolant flow to the cylinder head and cylinder block, improving engine warm-up tim

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To switch off the engine while the vehicle is stationary: Apply the Electric Parking Brake (EPB). Mark sure that Park (P) (automatic transmission) or Neutral (N) (manual transmission) is selected. Press and release the engine START/ STOP button. The engine now stops, but the vehicle's igniti

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