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Home >> Ford >> 2010 >> Focus S, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brake System Actuation >> Removal And Installation >> Brake Master Cylinder >> Removal and Installation

Removal and Installation

All vehicles 

WARNING: Do not use any fluid other than clean brake fluid meeting manufacturer's specification. Additionally, do not use brake fluid that has been previously drained. Following these instructions will help prevent system contamination, brake component damage and the risk of serious personal injury.
WARNING: Carefully read cautionary information on product label. For EMERGENCY MEDICAL INFORMATION seek medical advice. In the USA or Canada on Ford/Motorcraft products call: 1-800- 959-3673. For additional information, consult the product Material Safety Data Sheet (MSDS) if available. Failure to follow these instructions may result in serious personal injury.
NOTE: Brake fluid is harmful to painted and plastic surfaces. If brake fluid is spilled onto a painted or plastic surface, immediately wash it with water.
  1. With the engine OFF, press the brake pedal several times to deplete the brake booster vacuum.
  2. Remove the battery tray. For additional information, refer to BATTERY, MOUNTING AND CABLES .
  3. Loosen the Battery Junction Box (BJB) screw.
    Fig 1: Locating Battery Junction Box (BJB) Screw
    G06256156
  4. Disconnect the BJB  from the bracket and position aside.
    • Press the locking tab.
    Fig 2: Locating Locking Tab
    G06256157
  5. NOTE: Cap the hose connections to prevent fluid loss.

    Disconnect the brake fluid reservoir-to-master cylinder tube.

    Fig 3: Locating Brake Fluid Reservoir-To-Master Cylinder Tube
    G06438550

    Vehicles with manual transaxle 

  6. Disconnect the clutch master cylinder tube.
    Fig 4: Locating Clutch Master Cylinder Tube
    G06438551

    All vehicles 

  7. NOTE: Cap the brake tube connections to prevent fluid loss.

    Disconnect the brake tube fittings.

    • To install, tighten to 20 Nm (177 lb-in) on vehicles without anti-lock brakes.
    • To install, tighten to 15 Nm (133 lb-in) on vehicles with anti-lock brakes.
  8. NOTE: Make sure that the master cylinder-to-booster seal is removed with the master cylinder.

    Remove and discard the 2 brake master cylinder nuts and remove the brake master cylinder.

    • Discard the vacuum seal.
    • To install, tighten the new nuts to 18 Nm (159 lb-in).
  9. NOTE: Before installing the master cylinder make sure that the new vacuum seal is in place and that the mating faces are clean.

    To install, reverse the removal procedure.

    Vehicles with manual transaxle 

  10. Bleed the hydraulic clutch system. For additional information, refer to MANUAL TRANSAXLE/TRANSMISSION AND CLUTCH - GENERAL INFORMATION .