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Home >> Toyota >> 2021 >> C-HR XLE >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) - Service Information >> Brake Master Cylinder >> Removal [02/2017 - 09/2019] >> Procedure

Removal [02/2017 - 09/2019]: Procedure

  1. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to REMOVAL [02/2017 - 10/2017] , or refer to REMOVAL [10/2017 - 12/2021]

  2. REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL 

    Refer to PROCEDURE - Step 3 [02/2017 - 10/2017] , or refer to PROCEDURE - Step 3 [10/2017 - 09/2019]

  3. REMOVE WATER GUARD PLATE LH 

    Refer to PROCEDURE - Step 4 [02/2017 - 10/2017] , or refer to PROCEDURE - Step 4 [10/2017 - 09/2019]

  4. REMOVE COWL BODY MOUNTING REINFORCEMENT LH 

    Refer to PROCEDURE - Step 5 [02/2017 - 10/2017] , or refer to PROCEDURE - Step 5 [10/2017 - 09/2019]

  5. REMOVE COWL BODY MOUNTING REINFORCEMENT RH 

    Refer to PROCEDURE - Step 6 [02/2017 - 10/2017] , or refer to PROCEDURE - Step 6 [10/2017 - 09/2019]

  6. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 7 [02/2017 - 10/2017] , or refer to PROCEDURE - Step 7 [10/2017 - 09/2019]

  7. REMOVE BATTERY 

    Refer to REMOVAL [02/2017 - 08/2020]

  8. DRAIN BRAKE FLUID 
    NOTE:

    If brake fluid leaks onto any painted surface, immediately wash it off.

  9. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY 
    1. Disengage the clamp and disconnect the reservoir level switch connector.
      GTY749430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a union nut wrench, disconnect the 2 brake lines from the brake master cylinder sub-assembly.
      GTY770477Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Do not damage or deform the brake lines during the removal procedure.
      • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.
    3. Using a 13 mm deep socket wrench, remove the nut and separate the wire harness bracket.
      GTY770749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using a 13 mm deep socket wrench, remove the nut and brake master cylinder sub-assembly from the brake booster assembly.
      NOTE:
      • The brake master cylinder sub-assembly requires careful handling. Do not drop or subject the brake master cylinder sub-assembly to any impact. Do not reuse a brake master cylinder sub-assembly that has been dropped.
      • Do not hold the brake master cylinder sub-assembly by the master cylinder piston. Hold the brake master cylinder sub-assembly by its body or its brake master cylinder reservoir assembly when carrying it.
      • Do not pull out the master cylinder piston.
      • Do not strike or pinch the master cylinder piston, or cause any damage to the master cylinder piston by any other means.
      • When installing the brake master cylinder sub-assembly to the brake booster assembly, or when removing the brake master cylinder sub-assembly from the brake booster assembly, make sure that the brake master cylinder sub-assembly is kept horizontal or with its tip facing downward (the master cylinder piston is facing upward) to prevent the master cylinder piston from falling out.
      • Do not allow any foreign matter to contaminate the master cylinder piston. If any foreign matter gets on the master cylinder piston, remove it by using a piece of cloth and then apply an even layer of lithium soap base glycol grease around the circumference (sliding part) of the master cylinder piston.
      • Do not use any other type of grease or fluid.
      • Make sure to release vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly.
    5. Remove the brake master cylinder O-ring from the brake master cylinder sub-assembly.
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