Kia Optima DL3: Front Suspension System / Front Lower Arm

Kia Optima DL3 2019-2026 Service and Repair Manual / Suspension System / Front Suspension System / Front Lower Arm

Repair procedures

Removal
1.

Disconnect the (-) battery terminal.
2.

Remove the front wheel and tire.

(Refer to Suspension System - "Wheel")

3.

Loosen the lower arm mounting nut (A).

(1)

Remove the snap pin (A).
(2)

Remove the lower arm mounting nut (B) and washer (C).

Tightening torque :

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

  

To loosen the nut (B), fix the bolt on the opposite side to prevent it from turning.
4.

Disconnect lower arm ball joint from the knuckle by using the SST (0K545-A9100).

(1)

After removing bolts from the front knuckle, install and tighten the sub body bolt (A)
(2)

Input the sub body (B) between the front knuckle and the sub body bolt.

(3)

Tighten the bolt (C) of the sub body to broaden the gap of the front knuckle.
(4)

Install the safe wire and main body (A) between the front strut and the lower arm.

(5)

After installing a body (A), rotate the handle (B) clockwise util the clamp is fixed on the lower arm.
(6)

Tighten the main body bolt (A) slowly and remove the lower arm from the front knuckle.
5.

Loosen the bolts and nuts and remove the lower arm (A) from the sub frame.

Tightening torque :

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

Installation
1.

Install in the reverse order of removal.
2.

Check the alignment.

(Refer to Suspension System - "Alingment")

Inspection
1.

Check the bushing for wear and deterioration.
2.

Check the lower arm for bending or breakage.
3.

Check the lower arm for deformation.
4.

Check the all bolts and nuts.

    Components and components location Components 1. Strut assembly 2. Insulator dust cap 3. Insulator 4. Spring upper pad 5.

    Repair procedures Removal 1. Disconnect the (-) battery terminal. 2. Remove the front wheel and tire.

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