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

Renault Koleos Service Repair Manual / Engine and peripherals / Diesel injection / Fuel temperature sensor: Removal - Refitting

M9R

Diesel injection

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

 

IMPORTANT Use the diagnostic tool before any operation is carried out on the injection circuit to check:
  • that the rail is not under pressure,
  • that the fuel temperature is not too high.

Working on the circuit with the engine running is strictly forbidden.

 

IMPORTANT During this operation, be sure to:
  • refrain from smoking or bringing red hot objects close to the working area,
  • be careful of fuel splashes when disconnecting the union.

 

WARNING To avoid any corrosion or damage, protect the areas on which fuel is likely to run.

REMOVAL

I - REMOVAL PREPARATION OPERATION

  • Remove the front engine cover.

Diesel injection

  • Disconnect the quick-release unions (1) from the manual priming pump.
  • Insert the blanking plugs.
  • Remove:
    • the nuts and the bolt (2) from the fuel filter protector,
    • the fuel filter protector (3) .

Diesel injection

  • Disconnect the brake servo pipe (4) from the non-return valve.

II - OPERATION FOR REMOVAL OF PART CONCERNED

Note: The fuel temperature sensor is integrated into the fuel return pipe and these two components cannot be removed separately.

Diesel injection

  • Disconnect the fuel supply quick-release union (5) from the high pressure pump of the fuel filter.
  • Insert the blanking plugs.

Diesel injection

  • Disconnect:
    • the fuel supply quick-release union (6) from the high pressure pump,
    • the fuel temperature sensor connector (7) .
  • Unclip:
    • the fuel temperature sensor,
    • the air bleed quick-release union (8) ,
    • the high pressure pump fuel supply pipe.
  • Remove fuel temperature sensor and fuel supply pipe assembly from the high pressure pump.

REFITTING

I - REFITTING PREPARATION OPERATION

WARNING Do not remove the blanking plugs from each component until the last moment.

Also, do not remove the components from their packaging until they are to be fitted to the vehicle.

II - REFITTING OPERATION FOR PART CONCERNED

  • Refit the fuel temperature sensor and fuel supply pipe assembly of the high pressure pump.
  • Clip:
    • the high pressure pump fuel supply pipe,
    • the air bleed quick-release union,
    • the fuel temperature sensor.
  • Remove the blanking plugs from the openings.
Note: Be careful not to pinch or damage the fuel pipes.
  • Connect:
    • the fuel temperature sensor connector,
    • the fuel supply quick-release union of the high pressure pump,
    • the high pressure pump fuel supply quick-release union to the fuel filter.

III - FINAL OPERATION.

  • Connect the brake servo pipe of the non-return valve.
  • Refit:
    • the fuel filter protector,
    • the nuts and the bolt of the fuel filter protector.
  • Torque tighten:
    • the fuel filter protector nuts (10 N.m),
    • the fuel filter protector bolt (25 N.m).
  • Remove the blanking plugs from the openings.
  • Connect the quick-release unions of the manual priming pump.
  • Prime the circuit using the manual priming pump.
  • Refit the engine cover.
    Oxygen sensor: Removal - Refitting

    Diesel injector: Removal - Refitting

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