Renault Koleos Service Repair Manual: Coolant temperature sensor: Removal - Refitting

Renault Koleos Service Repair Manual / Engine and peripherals / Cooling / Coolant temperature sensor: Removal - Refitting

M9R

IMPORTANT Consult the safety and cleanliness advice and operation recommendations before carrying out any repair.

 

IMPORTANT The circuits are designed to be pressurised, so be careful at high temperatures (risk of serious burns).

Do not remove the cap from the expansion bottle while the engine is hot. Take care when carrying out a repair under the bonnet, as the radiator fan(s) may start to operate without warning.

Do not open the bleed screw(s) with the engine running.

 

WARNING When carrying out a repair that requires a complete change, it is essential to flush the circuit with clean water, blast compressed air through the circuit to drive out the water, fill and bleed the circuit and then measure the effective protection.

The parameters to be observed are:

  • Protection down to -25ºC +- 2 for cold and temperate climates,
  • Protection down to -40ºC +- 2 for very cold climates.

 

WARNING Prepare for the flow of fluid, and protect the surrounding components.

REMOVAL

I - REMOVAL PREPARATION OPERATION

  • Position the vehicle on a two-post lift.
  • Remove:
    • the battery
    • the engine undertray.
  • Drain the cooling system.

II - OPERATION FOR REMOVAL OF PART CONCERNED

Cooling

  • Disconnect the coolant temperature sensor (1) .
  • Unclip the wiring at (2) .
  • Move aside the wiring.

Cooling

  • Unclip the retaining clip (3) of the coolant temperature sensor in the direction of the arrow.
  • Remove the coolant temperature sensor (4) .

REFITTING

I - REFITTING PREPARATION OPERATION

  • Always replace the coolant temperature sensor seal.

II - REFITTING OPERATION FOR PART CONCERNED

  • Refit:
    • the new coolant temperature sensor seal,
    • the coolant temperature sensor into its housing.
  • Clip on the coolant temperature sensor mounting clip.
  • Attach the wiring.
  • Connect the coolant temperature sensor connector.

III - FINAL OPERATION.

  • Refit the battery.
  • Fill the cooling system.
  • Bleed the cooling system .
  • Refit the engine undertray.

2TR

Cooling

IMPORTANT To avoid all risk of damage to the systems, apply the safety and cleanliness instructions and operation recommendations before carrying out any repair .

REMOVAL

I - REMOVAL PREPARATION OPERATION

  • Position the vehicle on a two-post lift .
  • Remove:
    • the air intake sleeve
    • the battery
    • the engine cover
    • the air resonator located on the rocker cover

II - OPERATION FOR REMOVAL OF PART CONCERNED

Cooling

REMOVAL

I - REFITTING PREPARATION OPERATION

  • Always replace the coolant temperature sensor seal.

II - REFITTING OPERATION FOR PART CONCERNED

  • Refit:
    • the new coolant temperature sensor seal,
    • the coolant temperature sensor.
  • Torque tighten the coolant temperature sensor (25 N.m).
  • Connect the coolant temperature sensor connector.

III - FINAL OPERATION.

  • Refit:
    • the air resonator located on the rocker cover
    • the engine cover,
    • the battery
    • the air intake sleeve
  • Top up the cooling system.
  • Bleed the cooling system.
    Electric coolant pump: Removal - Refitting

    Exhaust

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