Kia Optima: Rear Suspension System / Rear Lower Arm

Kia Optima DL3 2019-2025 Service and Repair Manual / Suspension System / Rear Suspension System / Rear Lower Arm

Repair procedures

Removal

1.	Disconnect the (-) battery terminal.

2.	Remove the rear wheel and tire. (Refer to Tires/Wheels - "Wheel")

Loosen the bolt and nut (A) and then remove the rear lower arm from the rear axle.

Tightening torque :

137.3 - 156.9 N.m (14.0 - 16.0 kgf.m, 101.3 - 115.7 lb-ft)

•	Set up the transmission jack under the lower arm in order to remove it in no-load condition.

•	Before removing the rear lower arm, mark the position and direction of the bolt and washer before changing.

Loosen the bolt and nut (A) and remove the rear shock absorber from the rear lower arm.

Tightening torque :

137.3 - 156.9 N.m (14.0 - 16.0 kgf.m, 101.3 - 115.7 lb-ft)

Loosen the bolt and nut (A) and then disconnect the rear stabilizer link from the rear lower arm.

Tightening torque :

58.8 - 68.6 N.m (6.0 - 7.0 kgf.m, 43.4 - 50.6 lb-ft)

•	When loosening the nut (A), fix the outer hexagon of stabilizer bar link.

•	Be careful not to damage the stabilizer link boots.

6.	Remove the rear coil spring (A).

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

Tightening torque :

107.8 - 117.6 N.m (11.0 - 12.0 kgf.m, 79.5 - 86.8 lb-ft)

Inspection

1.	Check the bushing for wear and deterioration.

2.	Check the rear lower arm for deformation.

3.	Check the coil spring and spring pad for deterioration and deformation.

4.	Check for all bolts and nut.

Installation

1.	Install in the reverse order of removal.

2.	Check the alignment. (Refer to Suspension System - "Alingment")

Rear Upper Arm

Repair procedures Removal 1. Disconnect the (-) battery terminal. 2. Remove the rear wheel and tire. (Refer to Tires/Wheels - "Wheel") ...

Rear Assist Armature

Repair procedures Removal 1. Disconnect the (-) battery terminal. 2. Remove the rear wheel and tire. (Refer to Tires/Wheels - "Wheel") ...

Other information:

Kia Optima DL3 2019-2025 Owner's Manual: Technical Data

System voltage: DC 12 V Working voltage: DC 10 - 15 V Amperage rating: max. 15 A ± 1A (at DC 12V operation) Suitable for use at temperatures: -30 ~ +70°C (-22 ~ +158°F) Max. working pressure: 6 bar (87 psi) Size Compressor: 161 x 150 x 55.8 mm (6.3 x 5.9 x 2.2 in.) Sealant bottle: 104 x 85 ...

Kia Optima DL3 2019-2025 Owner's Manual: Highway driving

Tires Adjust the tire inflation pressures to specification. Low tire inflation pressures will result in overheating and possible failure of the tires. Avoid using worn or damaged tires which may result in reduced traction or tire failure. Never exceed the maximum tire inflation pressure shown ...