Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Removal

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Brake / Brake System (other) / Brake Master Cylinder / Removal

REMOVAL

CAUTION / NOTICE / HINT

NOTICE:

Make sure to release vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly.

PROCEDURE

1. DRAIN BRAKE FLUID

NOTICE:

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

2. REMOVE COOL AIR INTAKE DUCT SEAL

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3. REMOVE V-BANK COVER SUB-ASSEMBLY

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4. REMOVE INLET AIR CLEANER ASSEMBLY

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5. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

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6. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

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7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

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8. DISCONNECT NO. 1 RESERVOIR HOSE

(a) Slide the clip and disconnect the No. 1 reservoir hose from the brake master cylinder sub-assembly.

9. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY WITH WAY

(a) Using a union nut wrench, disconnect the 2 brake lines from the brake master cylinder sub-assembly with way.

NOTICE:

  • Do not damage or deform the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

(b) Remove the 2 nuts and brake master cylinder sub-assembly with way from the brake booster assembly.

NOTICE:

  • 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 reservoir 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 new and dry cloth. Do not use water or detergent. 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 types of grease.
  • Make sure to release vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly.

10. REMOVE BRAKE MASTER CYLINDER O-RING

(a) Remove the brake master cylinder O-ring from the brake master cylinder sub-assembly.

    Components
    COMPONENTS ILLUSTRATION *1 COOL AIR INTAKE DUCT SEAL - - ILLUSTRATION *1 AIR CLEANER CAP WITH AIR CLEANER HOSE *2 AIR CLEANER CASE SUB-ASSEMBLY *3 AIR CLEANER FILTER ELEME ...

    Disassembly
    DISASSEMBLY PROCEDURE 1. REMOVE BRAKE MASTER CYLINDER TO WAY TUBE (a) Secure the brake master cylinder sub-assembly with way in a vise. NOTICE: Place aluminum plates on the vise to prevent damage to t ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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