Repair Procedures: Removal

Turn the ignition switch OFF.
Remove the brake fluid from the master cylinder reservoir with a syringe.
CAUTION:
- Be sure to completely remove foreign substances from around brake fluid reservoir and cap before opening the reservoir cap. Otherwise, it may cause contamination of brake fluid and deterioration in braking performance.
- Do not spill brake fluid on the vehicle as it may damage the paint. If brake fluid comes in contact with the paint, wash off immediately with water.
Pull up the lock of the HECU connector (A) and then disconnect the connector.

Fig 1: Locating ESC / HECU Connector
Courtesy of KIA MOTORS AMERICA, INC.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a wrench.
Tightening torque:

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

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

Fig 2: Locating Brake Tubes To ESC / HECU
Courtesy of KIA MOTORS AMERICA, INC.
Loosen the HECU bracket nuts (A) and then remove HECU and bracket.
Tightening torque:

16.7 ~ 25.5 N.m (1.7 ~ 2.6 kgf.m, 12.3 ~ 18.8 lb-ft)

Fig 3: Locating ESC / HECU Bracket Nuts
Courtesy of KIA MOTORS AMERICA, INC.
CAUTION:
1. Never attempt to disassemble the HECU.
2. Never shock the HECU.
Remove the bolts and then remove the bracket from HECU.
Tightening torque:

10.8 ~ 13.7 N.m (1.1 ~ 1.4 kgf.m, 8.0 ~ 10.1 lb-ft)