Renault Koleos Service Repair Manual: Master cylinder: Removal - Refitting

LEFT-HAND DRIVE

Mechanical component controls

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 (see Vehicle: Towing and lifting) (02A, Lifting equipment).

M9R

Mechanical component controls

  • Disconnect the connector (1) from the turbocharging pressure regulation solenoid valve.
  • Unclip:
    • the turbocharging pressure regulation solenoid valve (2) from its support,
    • the hoses of the turbocharging pressure regulation solenoid valve from the battery tray (3) .
  • Remove:
    • the battery (see Battery: Removal - Refitting) (80A, Battery),
    • the battery tray (see Battery tray: Removal - Refitting) (80A, Battery),
    • the air filter box (see Air filter unit: Removal - Refitting) (12A, Fuel mixture),
    • the air outlet pipe (4) from the air filter unit.
  • Remove partially the bulkhead insulation (see Bulkhead insulation: Removal - Refitting) (68A, Soundproofing).

II - OPERATION FOR REMOVAL OF PART CONCERNED

Mechanical component controls

  • Disconnect the brake fluid level sensor connector (5) .
  • Drain the brake fluid reservoir with a syringe.

6-SPEED MANUAL GEARBOX

Mechanical component controls

  • Disconnect the clutch master cylinder supply hose (6) from the brake fluid reservoir.

Mechanical component controls

  • Remove:
    • the brake pipe unions (7) on the master cylinder after having marked them,
    • the master cylinder nuts (8) on the brake servo,
    • the master cylinder with the brake fluid reservoir (9) .

REFITTING

I - REFITTING PREPARATION OPERATION

Mechanical component controls

  • Always replace the master cylinder seal (10) .
  • Coat the seal and the shaft (11) of the master cylinder with SILICONE grease (see Vehicle: Parts and consumables for the repair) (04B, Consumables - Products).

II - REFITTING OPERATION FOR PART CONCERNED

  • Line up the master cylinder with the brake servo so that the pushrod goes into the master cylinder housing.
  • Refit:
    • the master cylinder with a new seal,
    • the master cylinder nuts.
  • Torque tighten the master cylinder nuts (18 N.m) on the brake servo.
  • Refit the brake pipe unions on the master cylinder.
  • Torque tighten the brake pipe unions on the master cylinder (16 N.m).
  • Connect the connector on the brake fluid reservoir.

6-SPEED MANUAL GEARBOX

  • Connect the clutch master cylinder supply hose on the brake fluid reservoir.

III - FINAL OPERATION

  • Refit:
    • the bulkhead insulation (see Bulkhead insulation: Removal - Refitting) (68A, Soundproofing).
    • the air filter box air outlet pipe,
    • the air filter box (see Air filter unit: Removal - Refitting) (12A, Fuel mixture),
    • the battery tray (see Battery tray: Removal - Refitting) (80A, Battery),
    • the battery (see Battery: Removal - Refitting) (80A, Battery).

M9R

  • Clip:
    • the hoses of the turbocharging pressure regulation solenoid valve on the battery tray,
    • the turbocharging pressure regulation solenoid valve on its support.
  • Connect the turbocharging pressure regulation solenoid valve connector.

 

  • Fill up the brake fluid reservoir.
  • Bleed the brake circuit (see 30A, General information, Braking circuit: Bleed, page 30A-4) .

6-SPEED MANUAL GEARBOX

  • Bleed the clutch circuit (see 37A, Mechanical component controls, Clutch circuit: Bleed, page 37A- 48) .

RIGHT-HAND DRIVE

Mechanical component controls

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 (see Vehicle: Towing and lifting) (02A, Lifting equipment).
  • Disconnect the battery (see Battery: Removal - Refitting) (80A, Battery),
  • Remove:
    • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing),
    • the scuttle panel half-grille (see Scuttle panel halfgrille: Removal - Refitting) (56A, Exterior accessories),
    • the windscreen wiper mechanism (see Windscreen wiper mechanism: Removal - Refitting) (85A, Wiping - Washing),
    • the scoop under the scuttle panel grille (see Scoop under the scuttle panel grille: Removal - Refitting) (56A, Exterior equipment),
    • the bulkhead insulation (see Bulkhead insulation: Removal - Refitting) (68A, Soundproofing).

II - OPERATION FOR REMOVAL OF PART CONCERNED

Mechanical component controls

  • Unfasten clips (1) .
  • Remove the vacuum pipe (2) from the brake servo.

Mechanical component controls

  • Disconnect the brake fluid level sensor connector (3) .
  • Unclip the clip (4) from the wiring of the brake fluid reservoir
  • Drain the brake fluid reservoir with a syringe.
  • Remove the master cylinder brake pipe unions (5) .

6-SPEED MANUAL GEARBOX

  • Disconnect the clutch master cylinder supply hose (6) from the brake fluid reservoir.

Mechanical component controls

  • Remove:
    • the master cylinder nuts (7) ,
    • the master cylinder with the brake fluid reservoir.

REFITTING

I - REFITTING PREPARATION OPERATION

Mechanical component controls

  • Always replace the master cylinder seal (8) .
  • Coat the seal and the master cylinder shaft (9) with SILICONE grease (see Vehicle: Parts and consumables for the repair) (04B, Consumables - Products).

II - REFITTING OPERATION FOR PART CONCERNED

  • Line up the master cylinder with the brake servo so that the pushrod goes into the master cylinder housing.
  • Refit:
    • the master cylinder with a new seal,
    • the master cylinder nuts.
  • Torque tighten the master cylinder nuts (18 N.m) on the brake servo.
  • Refit the brake pipe unions on the master cylinder.
  • Torque tighten the brake pipe unions on the master cylinder (16 N.m).
  • Connect the brake fluid level sensor connector.
  • Clip the wiring clip to the brake fluid reservoir.

6-SPEED MANUAL GEARBOX

  • Connect the clutch master cylinder supply hose on the brake fluid reservoir.

 

  • Refit the vacuum pipe on the brake servo.
  • Tighten the clips.

III - FINAL OPERATION.

  • Refit:
  • the bulkhead insulation (see Bulkhead insulation: Removal - Refitting) (68A, Soundproofing).
    • the scoop under the scuttle panel grille (see Scoop under the scuttle panel grille: Removal - Refitting) (56A, Exterior equipment),
    • the windscreen wiper mechanism (see Windscreen wiper mechanism: Removal - Refitting) (85A, Wiping - Washing),
    • the scuttle panel half-grille (see Scuttle panel half-grille: Removal - Refitting) (56A, Exterior accessories),
    • the windscreen wiper arms (see Windscreen wiper arm: Removal - Refitting) (85A, Wiping - Washing),
  • Connect the battery (see Battery: Removal - Refitting) (80A, Battery).
  • Fill up the brake fluid reservoir.
  • Bleed the brake circuit (see 30A, General information, Braking circuit: Bleed, page 30A-4) .

6-SPEED MANUAL GEARBOX

  • Bleed the clutch circuit (see 37A, Mechanical component controls, Clutch circuit: Bleed, page 37A- 48) .
    Mechanical component controls

    Brake servo: Removal - Refitting

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