Kia Optima: Replacement - Steering Gear box. Repair procedures - Electric Power Steering - Steering System - Kia Optima TF 2011-2025 Service ManualKia Optima: Replacement

1. Remove the front wheel & tire.

Tightening torque :

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


Be careful not to damage to the hub bolts when removing the front wheel & tire.
2. Disconnect the stabilizer link (B) from the front strut assembly (A) after loosening the nut.

Tightening torque :

98.1 ~ 117.7N.m (10.0 ~ 12.0kgf.m, 72.3 ~ 86.8lb-ft)


3. Remove the split pin and castle nut and then disconnect the tie-rod end (A) from the front knuckle.

Tightening torque :

34.3 ~ 44.1N.m(3.5 ~ 4.5kgf.m, 25.7 ~ 32.5lb-ft)


4. Loosen the bolt & nut and then remove the lower arm (A).

Tightening torque :

98.1 ~ 117.7N.m (10.0 ~ 12.0kgf.m, 72.3 ~ 86.8lb-ft)


5. Loosen the bolt (A) and then disconnect the universal joint assembly from the pinion of the steering gear box.

Tightening torque :

29.4 ~ 34.3N.m (3.0 ~ 3.5kgf.m, 21.7 ~ 25.7lb-ft)


Keep in the neutral-range to prevent damage of the clock spring inner cable when you handle the steering wheel.
Do not use the bolt again.
6. Remove the under cover (A).

7. Loosen the bolt (A) & nut (B) and then remove the roll rod stopper.

Tightening torque :

107.9 ~ 127.5N.m (11.0 ~ 13.0kgf.m, 79.6 ~ 94.0lb-ft)


8. Disconnect the muffler rubber hanger (A).

9. Loosen the bolts & nuts and then remove the sub frame (A).

Tightening torque

Sub frame mounting bolts & nuts:

156.9 ~ 176.5N.m (16.0 ~ 18.0kgf.m, 115.7 ~ 130.2lb-ft)

Sub frame stay bolts & nuts:

44.1 ~ 58.8N.m (4.5 ~ 6.0kgf.m, 32.5 ~ 43.4lb-ft)

10. Remove the stabilizer bar.
11. Loosen the bolt and then remove the steering gear box (A).

Tightening torque :

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


12. Installation is the reverse of the removal.

Steering Gear box. Repair procedures
...

Disassembly
1. Remove the dust packing & cap (A) from the pinion housing. 2. Loosen the lock nut and then remove the tie rod end (B) and lock nut (A) from the tie rod ...

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