Repair Procedures: Removal

Remove the wheel & tire.
Tightening torque:

88.3 - 107.9 N.m (9.0 - 11.0 kgf.m, 65.1 - 79.6 lb.ft)

Fig 1: Removing Front Wheel Speed Sensor Wheel And Tire
Courtesy of KIA MOTORS AMERICA, INC.

CAUTION: Be careful not to damage the hub bolts when removing the front wheel & tire.
Remove the front wheel speed sensor bolt (A) and bracket bolts (B).
Tightening torque:

6.9 - 10.8 N.m (0.7 - 1.1 kgf.m, 5.1 - 8.0 lb.ft)

Fig 2: Removing Front Wheel Speed Sensor Bolt And Bracket Bolts
Courtesy of KIA MOTORS AMERICA, INC.
Remove the front wheel guard.
(Refer to BODY SIDE MOLDING - OPTIMA (EXCEPT HEV) Body (Interior and Exterior) )
Disconnect the front wheel speed sensor connector (A) and then remove the front wheel speed sensor.

Fig 3: Removing Front Wheel Speed Sensor
Courtesy of KIA MOTORS AMERICA, INC.
Install in the reverse order of removal.