Kia Optima Hybrid: Rear Suspension System / Rear Lower Arm Repair procedures

Replacement
1.
Remove the rear wheel & tire.

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

   
Be careful not to damage the hub bolts when removing the rear wheel & tire.
2.
Loosen the nut and then remove the rear stabilizer link (B) from the rear lower arm (A).

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

3.
Loosen the bolt & nut and then remove the rear lower arm (A) from the rear axle.

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

4.
Loosen the bolt & nut and then remove the rear lower arm (B) from the sub frame (A).

Tightening torque:
117.7 ~ 137.3N.m (12.0 ~ 14.0kgf.m, 86.8 ~ 101.3lb-ft)

5.
Installation is the reverse of removal.
   
Be careful not to cover the drain hole of lower arm with spring.
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.
Rear Upper Arm Repair procedures

Replacement 1. Remove the rear wheel & tire. Tightening torque: 88.3 ~ 107.9N.m(9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft)     Be careful not to damage the hub bolts when removing the rear wheel ...

Rear Stabilizer Bar Repair procedures

Replacement 1. Remove the rear wheel & tire. Tightening torque: 88.3 ~ 107.9N.m (9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft)     Be careful not to damage the hub bolts when removing the rear wheel ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Oil Pump Uni t(OPU) Repair procedures


Removal 1. Disconnect the 12V battery negative (-) cable. 2. Remove the under cover (A). 3. Remove the wiring fixed clip at bracket after removing oil pump connector (A). Tightening torque: 18.6 ~ 27.5 N.m (1.9 ~ 2.8 kgf.m, 13.7 ~ 20.2 lb-ft) 4. Remove the oil pump unit (A). Tightening torque: 18.6 ~ ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Auxiliary 12V Battery Description and Operation


Description 1. The maintenance-free battery is, as the name implies, totally maintenance free and has no removable battery cell caps. 2. Water never needs to be added to the maintenance-free battery. 3. The battery is completely sealed, except for small vent holes in the cover.     After disconnecting ...

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