Brake System

Master Cylinder Repair Procedures

11steps
~66min
3/5difficulty
02040608010034.325N·mlb·ft
Tightening torque found on this page
Done 0 of 11

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the ECM connector (A) and the TCM connector (B), IDB (C), then remove the noise insulator (D).
  3. Remove the upper cover of the cover. (Refer to Cover - Upper Cover)
  4. Remove the ECM, TCM and IDB.
  5. Remove the clamp (A) and the vacuum brake hose (B).
  6. Remove the clip (A), then disconnect the brake fluid level sensor connector (B).
  7. Remove the brake fluid from the master cylinder reservoir using a syringe.
    Do not spill brake fluid on the vehicle, as it may damage the paint. If brake fluid gets on the paint, wash it off immediately with water.
  8. Loosen the hose connecting bolt (A) and disconnect the brake tube.

    Tightening torque: 29.4 ~ 34 N·m

    Do NOT reuse the washers. Be sure to install new ones. Reusing a washer may cause brake system failure or accidents due to oil leakage. Tighten to the specified torque using a torque wrench. Do not use an air ratchet or power tools.
  9. Remove the master cylinder (B) from the brake booster after first loosening the mounting nuts (A).

    Tightening Torque: 12.8 ~ 16.7 N·m

Installation

  1. To install, reverse the removal procedure.
  2. After installation, bleed the brake system. (Refer to Brake System - Brake System Bleeding)

Test yourself

A quick Hyundai Genesis DH quiz: every answer comes with an explanation and a link to the manual page.