Renault Clio: Hydraulic unit - underbody union brake pipe: Removal - Refitting

LEFT-HAND DRIVE

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Put the vehicle on a two-post lift (see Vehicle: Towing and lifting).
• Drain the coolant circuit using refrigerant charging station.
• Fit a pedal press on the brake pedal.
• Disconnect the battery (see Battery: Removal - Refitting).

K4J or K4M or K9K

• Remove the battery (see Battery: Removal - Refitting).

• Remove:
  • the front engine cover (if fitted to the vehicle),
  • the air filter unit (see Air filter unit: Removal - Refitting).

• Remove the two soundproofing clips (1).
• Move the soundproofing to one side in order to see the pipes.

• Remove bolts (2) mounting the pipe unions on the expansion valve.
• Separate the pipe unions from the expansion valve.
• Fit protective plugs in each opening.

• Fit hose clamps (3).
• Disconnect the heater matrix hoses.

II - OPERATION FOR REMOVAL OF PART CONCERNED

• Loosen the underbody brake pipe unions (4).
• Detach the brake pipes from the clips (5).
• Remove the heat shield mountings (6).

• Loosen the hydraulic unit brake pipe unions (7).
• Remove the brake pipes between the hydraulic unit and underbody unions.

REFITTING

I - REFITTING PREPARATION OPERATION

• Replace the seals on the expansion valve pipes.
• Oil the seals using recommended air conditioning oil to make fitting easier.

II - REFITTING OPERATION FOR PART CONCERNED

• Refit the brake pipes between the hydraulic unit and underbody unions.
• Refit the heat shield mountings.
• Clip the brake pipes into position.
• Tighten to torque:
  • the brake pipe unions on the hydraulic unit (14 Nm),
  • the underbody pipe unions (14 Nm).

III - FINAL OPERATION

• Connect the heater matrix hoses.
• Remove the hose clamps.
• Fit the pipe unions on the expansion valve with the new seal.
• Refit the bolts mounting the pipe unions on the expansion valve.
• Tighten to torque the pipe union mounting bolts (8 Nm).
• Refit:
  • the soundproofing on the bulkhead,
  • the soundproofing mounting clips,
  • the air filter unit (see Air filter unit: Removal - Refitting),
  • the engine cover (if fitted to the vehicle).

K4J or K4M or K9K

• Refit the battery (see Battery: Removal - Refitting)

• Remove the brake pedal pedal press.
• Bleed the brake circuit (see 30A, General information, Braking circuit: Bleed, 30A-4).
• Top up the coolant level.
• Fill the coolant circuit using refrigerant charging station.
• Connect the battery (see Battery: Removal - Refitting).

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