Renault Clio: Fuel temperature sensor: Removal - Refitting

K9K, and 750 or 752 or 766 or 768

IMPORTANT

Use the diagnostic tool before any operation is carried out on the injection circuit to check:

• that the injector rail is not under pressure,
• that the fuel temperature is not too high.

It is essential to respect the safety and cleanliness advice whenever work is carried out on this system.

Loosening a high pressure pipe union when the engine is running is strictly prohibited.

WARNING

Before starting work on the vehicle, obtain:

• a new blanking plug kit (part no. 77 01 206 804),
• cleaning cloths (part no. 77 11 211 707).

It is essential to respect the safety and cleanliness advice whenever work is carried out on this system (see 13B, Diesel injection, Diesel injection: Precautions for the repair, 13B-1).

Note: Vehicles equipped with the K9K*768 engine may or may not be equipped with an intercooler.

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Disconnect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).
• Remove the front engine cover.

• Disconnect the inlet air pressure sensor (1).

K9K, and 750 or 766 or 768

• Remove the upper section of the turbocharger air duct (2).
• Loosen the clip (3).
• Move the inlet air duct to one side (4).

• Remove:
  • the dipstick,
  • the dipstick duct bolts.
• Move the dipstick duct to one side.
• Unclip the clips (5) from the injector rail protector.
• Remove:
  • the injector rail protector bolt (6),
  • the injector rail protector (7).

• Remove the high pressure pump protectors (8) and (9).

• Disconnect the diesel supply and return pipes (10).

Note: Make preparations for fuel outflow. Clean with new cloths.

• Fit the correct blanking plugs.

• Disconnect the diesel temperature sensor connector (11).

II - REMOVAL OF PART CONCERNED

• Remove the diesel temperature sensor (12).

REFITTING

I - REFITTING PREPARATION OPERATION

• Lubricate the O-ring with lubricant from the applicator supplied with the new part.

Note: Do not lubricate the diesel temperature sensor seals with grease or used diesel. Use the applicator supplied with the kit.

WARNING

Do not damage the O-ring when refitting.

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

II - REFITTING PART CONCERNED

• Refit the diesel temperature sensor.
• Tighten to torque the diesel temperature sensor (15 N.m).

III - FINAL OPERATION

• Reconnect:
  • the diesel temperature sensor connector ,
  • the diesel supply and return pipes.
• Refit:
  • the high pressure pump protectors,
  • the injector rail protector.
• Connect the inlet air pressure sensor.

K9K, and 750 or 766 or 768

• Refit the air inlet duct and tighten the clip.
• Loosen the intercooler inlet air pipe nut on the alternator.
• Fit the air duct between the turbocharger and the intercooler air inlet pipe.
• Lock the air duct onto the turbocharger and the intercooler inlet air pipe.
• Tighten the bolt of the air duct on the rocker cover.
• Torque tighten the nut mounting the intercooler inlet air pipe on the alternator (8 N.m).

• Refit the engine cover.
• Connect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).
• Check that there are no diesel leaks:
  • check the sealing after repair (see 13B, Diesel injection, High pressure pipe: Check, 13B- 99),
  • run the engine at idle speed until the engine cooling fan starts operating,
  • accelerate several times at no load,
  • switch off the ignition,
  • check that there is no diesel fuel escaping.

K9K, and 764 or 772

• The diesel temperature sensor (1) is integral with the diesel return pipe. If the temperature sensor fails, replace the " temperature sensor-diesel return pipe assembly " (see 13B, Diesel injection, Diesel return pipe: Removal - Refitting).

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