Kia Optima: Front Cross Member. Repair procedures - Front Suspension System - Suspension System - Kia Optima TF 2011-2024 Service ManualKia Optima: Front Cross Member. Repair procedures

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. 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)


Lock the steering wheel in the straight ahead position to prevent the damage of the clock spring inner cable when you handle the steering wheel.
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. Disconnect the stabilizer link (B) with 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)


6. Remove the undercover (A).

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

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 front lower arm.

(Refer to Front lower arm)

11. Remove the front stabilizer.

(Refer to Front stabilizer)

12. Remove the steering gearbox.

(Refer to ST group - "Steering Gearbox")

13. Installation is the reverse of removal.

Inspection
1. Check the bushing for wear and deterioration. 2. Check the front stabilizer bar for deformation. 3. Check the front stabilizer link ball joint ...

Rear Suspension System
...

See also:

SRS components and functions
The SRS consists of the following components: 1. Driver's front air bag module 2. Passenger's front air bag module 3. Side impact air bag modules 4. Curtain air bag modules 5. Retractor p ...

Installation
Pressure Side Impact Sensor 1. Install the new pressure side impact sensor with the screws then connect the pressure side impact sensor connector. Tightening t ...

Moving the Front Seat Forward and Backward
To move the seat forward or backward, pull up on the lever under the front edge of the seat cushion, slide the seat to the desired position, and release the lever. To ensure the seat is locked i ...

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