SONATA(YF) >2013 > G 2.4 GDI > Brake System > Brake System > Master Cylinder>Repair procedures  
Removal
1.
Turm ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the air cleaner assembly (A).

3.
Disconnect the brake fluid level switch connector (A), and vacuum switch connector (B).
[2.4 GDI]

[2.0 T-GDI]

4.
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.
5.
Disconnect the brake tube (A) from the master cylinder by 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)

[2.4 GDI]

[2.0 T-GDI]

6.
Remove the master cylinder (B) 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)

[2.4 GDI]

[2.0 T-GDI]

Installation
1.
Installation is the reverse of removal.
2.
After installation, bleed the brake system. (Refer to Brake system bleeding)