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Hyundai Tucson: Brake Booster - Removal

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Brake System / Braking System - operation and description / Brake Booster - Removal

Components

  1. Reservoir cap
  2. Reservoir
  3. Brake booster
  4. Master cylinder
  5. Push rod

Removal

  1. Turm ignition switch OFF and disconnect the negative (-) battery cable.
  2. Remove the battery.

    (Refer to Engine Electrical System - "Battery")

  3. Disconnect the brake fluid level sensor connector (A).

  1. Remove the brake fluid from the master cylinder reservoir with a syringe.

WARNING

  • Do not spill brake fluid on the vehicle, it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.
  • Make sure no dirt or other foreign matter is allowed to contaminate the brake fluid.
  1. Separate the brake tube (A) from the master cylinder after loosening the tube flare nut.

Tightening torque : 18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb-ft)

  1. Remove the master cylinder (A) after loosening the master cylinder nuts.

Tightening torque : 9.8 - 15.7 N.rn (1.0 - 1.6 kgf.m, 7.2 -11.6 lb-ft)

  1. Separate the reservoir from the master cylinder after removing the screw (A).

Installation

  1. Installation is the reverse of removal.

WARNING

  • Before installing the pin. apply the grease to the joint pin.
  • Use a new snap pin whenever installing.
  1. After installation, bleed the brake system.

    (Refer to Brake System - "Brake Bleeding Procedures")

  2.  Check the brake oil leakage and pedal operating condition.

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