Hyundai Elantra: Brake System / Master Cylinder Repair procedures

Removal

1.	Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.	Remove the battery. (Refer to Engine Electrical System - "Battery")

3.	Remove the ECM (A).

4.	Loosen the mounting bolts (A) and then remova the ECM bracket (B).

5.	Disconnect the brake fluid level switch connector.

6.	Remove the wiring fixed clip.

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

•	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.

8.	Remove the clutch brake hose (A). [M/T Only]

Disconnect the brake tube (A) from the master cylinder by loosening the tube flare nut.

Tightening torque:

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

ABS : 12.7 ~ 16.7 N.m (1.3 ~ 1.7 kgf.m, 9.4 ~ 12.3 lb-ft)

10.

Remove the master cylinder from the brake booster after loosening the mounting nuts (A).

Tightening torque:

12.7 ~ 16.7 N.m (1.3 ~ 1.7 kgf.m, 9.4 ~ 12.3 lb-ft)

11.	Separate the reservoir by loosening the screw.

Installation

1.	To install, reverse the removal procedure.

2.	After installing, bleed the brake system. (Refer to Brake System -"Brake System Bleeding") (Refer to Brake system - "ABS System Bleeding) (Refer to Brake system - "ESP System Bleeding)

Components 1.Reservoir cap2. Reservoir3.Reservoir4. Grommet5. Master cylinder ...

Components [DISC TYPE] [DRUM TYPE] ...

Hyundai Elantra AD (2016-2020) Owners Manual: Electronic Stability Control (ESC) OFF Indicator Light
This indicator light illuminates: Once you turn the ignition switch or the Engine Start/Stop button to the ON position. - It illuminates for approximately 3 seconds and then goes off. When you deactivate the ESC system by pressing the ESC OFF button. For more details, refer to " ...