Renault Clio: Thermostat: Removal - Refitting

M4R

Note: This engine has two thermostats: one thermostat is located on the cylinder head and the other is on the cylinder block.

REMOVAL OF THE CYLINDER HEAD THERMOSTAT

I - REMOVAL PREPARATION OPERATION

• Position the vehicle on a two-post lift (see Vehicle: Towing and lifting) (MR 392, 02A, Lifting equipment).
• Remove the engine cover.
• Disconnect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).
• Remove the engine undertray.
• Drain the cooling system (see 19A, Cooling, Cooling system: Draining - Refilling, 19A-16).
• Remove the water chamber (see 19A, Cooling, Water chamber: Removal - Refitting, 19A-63).

II - REMOVAL OF PART CONCERNED

• Remove the cylinder head thermostat.

REFITTING THE CYLINDER HEAD THERMOSTAT

I - REFITTING PART CONCERNED

• Refit the cylinder head thermostat, respecting the direction indicated in the diagram.

II - FINAL OPERATION

• Refit the coolant outlet unit (see 19A, Cooling, Water chamber: Removal - Refitting, 19A-63).
• Connect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).
• Refit:
  • the engine undertray,
  • the engine cover.
• Carry out the following operations:
  • fill the cooling system (see 19A, Cooling, Cooling system: Draining - Refilling, 19A-16),
  • bleed the cooling system (see 19A, Cooling, Cooling system: Draining - Refilling, 19A-16).

REMOVAL OF THE CYLINDER BLOCK THERMOSTAT

I - REMOVAL PREPARATION OPERATION

• Position the vehicle on a two-post lift (see Vehicle: Towing and lifting) (MR 392, 02A, Lifting equipment).
• Remove the engine cover.
• Disconnect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).
• Remove the engine undertray.
• Drain the cooling system (see 19A, Cooling, Cooling system: Draining - Refilling, 19A-16).

• Disconnect the coolant inlet union hose (1) using the (Mot. 1448).

• Remove:
  • the mounting bolts (2) from the coolant inlet union,
  • the coolant outlet union.

II - REMOVAL OF PART CONCERNED

• Remove the cylinder block thermostat.

REFITTING THE CYLINDER BLOCK THERMOSTAT

I - REFITTING PART CONCERNED

• Refit the cylinder block thermostat, respecting the direction indicated in the diagram.

II - FINAL OPERATION

• Tighten to torque the coolant inlet union mounting bolts (17 N.m).
• Connect the coolant inlet union hose using the (Mot.1448).
• Connect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).
• Refit:
  • the engine undertray,
  • the engine cover.
• Carry out the following operations:
  • fill the cooling system (see 19A, Cooling, Cooling system: Draining - Refilling, 19A-16),
  • bleed the cooling system .

D4F, and 784 or 786

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Position the vehicle on a two-post lift (see Vehicle: Towing and lifting) (MR 392, 02A, Lifting equipment).
• Disconnect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).
• Remove:
  • the engine cover,
  • the water chamber (see 19A, Cooling, Water chamber: Removal - Refitting, 19A-63).

II - OPERATION FOR REMOVAL OF PART CONCERNED

• Press on the spring mounting at (1).
• Turn the spring mounting at (2).

• Remove the thermostat (3).

REFITTING

I - REFITTING OPERATION FOR PART CONCERNED

• Refit the thermostat.
• Fit:
  • the spring,
  • the spring mounting.
• Press on the spring mounting.
• Turn the spring mounting.

II - FINAL OPERATION.

• Refit:
  • the water chamber (see 19A, Cooling, Water chamber: Removal - Refitting, 19A-63),
  • the engine cover.
• Connect the battery (see Battery: Removal - Refitting) (MR 392, 80A, Battery).

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