Contents Section: Automatic HVAC System All sections

Heating and Ventilation: Other Jaguar S-type I рестайлинг

Automatic HVAC System 15 illustrations ~669 words

Heater core

The heater core consists of fins and tubes arranged to extract heat from the engine coolant and transfer it to the air passing through the heater core. The heater core is separated into two sections. Air passing through one section is directed to the driver side of the vehicle, while air passing through the other section is directed to the passenger side of the vehicle. The heater core has separate inlet ports with a common outlet port.

Dual coolant control valve

The dual coolant valve regulates the flow of engine coolant to each half of the heater core. Two electric solenoids, Which are individually actuated by the heater control module, are the control elements. The valve contains three ports

  1. inlet port - coolant from the engine
  2. outlet port - coolant to driver side of heater core
  3. outlet port - coolant to passenger side of heater core

Auxiliary coolant flow pump vehicles fitted with 4.2L engine

The auxiliary coolant flow pump is electrically driven and provides increased coolant flow during low engine speed operation. The pump is also used to circulate coolant after the engine is turned off under certain conditions.

Blower motor

The brushless blower motor pulls air from the air inlet and forces it into the plenum assembly where it is mixed and distributed. The blower motor has eleven speeds (vehicles with telematics have seven speeds) and is controlled by the climate control assembly.

Refer to Climate Control System - General Information .

Scheme 97

Scheme 97: Removal

Scheme 98

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Scheme 99

Scheme 99

Scheme 100

Scheme 100
  1. Remove the air deflector. Refer to «Air Deflector»(ref-311270) .
  2. Disconnect the auxiliary coolant flow pump electrical connector.
  3. Detach the lower coolant hose.
  4. Detach the upper coolant hose.
  5. Remove the auxiliary coolant flow pump.

Scheme 101

Scheme 101: Installation
  1. Install the auxiliary coolant flow pump.
  2. Attach the upper coolant hose. Remove the pipe clamp.
  3. Attach the lower coolant hose. Remove the pipe clamp.
  4. Connect the auxiliary coolant flow pump electrical connector.
  5. Remove the coolant expansion tank pressure cap.
  6. Fill the cooling system up to the MAX mark on the coolant expansion tank using a fifty percent mixture of Jaguar premium cooling system fluid or equivalent, meeting Jaguar specification WSS M97B44-D and fifty percent water.
  7. Install the coolant expansion tank pressure cap.
  8. START and RUN the engine.
  9. Set the heating system to MAX heat, the blower motor to MAX speed and the air distribution to instrument panel registers.
  10. Allow the engine to RUN until hot air is emitted from the instrument panel registers, while observing the engine temperature gauge.
  11. Switch off the engine.
  12. Allow the engine to cool.
  13. Release the cooling system pressure. Remove the coolant expansion tank pressure cap.
  14. Fill the cooling system up to the MAX mark on the coolant expansion tank using a fifty percent mixture of Jaguar premium cooling system fluid or equivalent, meeting Jaguar specification WSS M97B44-D and fifty percent water.
  15. Install the coolant expansion tank pressure cap.
  16. Raise the vehicle.
  17. Check for water leaks.
  18. Install the air deflector. Refer to «Air Deflector»(ref-311270) .

Scheme 102

Scheme 102: Removal

Scheme 103

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Scheme 109

Scheme 109
  1. Carry out the cooling system drain procedure. Refer to «Engine Cooling»(ref-311313) or «Supercharger Cooling»(ref-311314) .
  2. Remove the radiator upper hose.
  3. Detach the thermostat housing lower hose.
  4. Disconnect the coolant expansion tank lower hose.
  5. Disconnect the heater hose.
  6. Detach the auxiliary coolant flow pump. Remove the retaining bolts. Detach the auxiliary coolant flow pump.
  7. Remove the auxiliary coolant flow pump and hoses. Disconnect the electrical connector. Remove the auxiliary coolant flow pump and hoses.
  8. Remove the auxiliary coolant flow pump hoses.
  9. Remove the auxiliary coolant flow pump retaining bracket.

Scheme 110

Scheme 110: Installation
  1. To install, reverse the removal procedure. Tighten to 10 Nm.
  2. Carry out the cooling system filling and bleeding procedure. Refer to «Engine Cooling»(ref-311313) or «Supercharger Cooling»(ref-311314) .

Scheme 111

Scheme 111: Removal
  1. Disconnect the battery ground cable. Refer to «Battery, Mounting and Cables»(ref-311319) .
  2. Remove the passenger side instrument panel closing panel.
  3. Remove the blower motor. Disconnect the electrical connector. Remove the blower motor.