Kia Optima Hybrid: Front Suspension System / Front Lower Arm 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 & nut and then remove the lower arm (A).

Tightening torque:
98.1 ~ 117.7N.m(10.0 ~ 12.0kgf.m, 72.3 ~ 86.6lb-ft)

3.
Remove the front lower arm from the front knuckle 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 (A) between the front knuckle and the sub body bolt.
(3)
Tighten bolt (B) of the sub body bolt to broaden the gap of the front knuckle.

(4)
Install the safe wire (A).

   
Install a safe wire on the front strut to prevent dropping the SST and hurting technicians.
(5)
Install the main body, between the front strut and the lower arm.

(6)
To avoid the main body coming off, install a fixing clamp (A) beside the main body.

(7)
After installing a fixing clamp, rotate the handle (B) clock wise till the clamp is fixed on a lower arm.

(8)
Tighten a main body bolt (A) of the slowly and remove the lower arm from the front knuckle.

4.
Loosen the bolts and nuts and then remove the front lower arm (A).

Tightening torque
Front:
117.7 ~ 137.3N.m(12.0 ~ 14.0kgf.m, 86.8 ~ 101.3lb-ft)
Rear:
137.3 ~ 156.9N.m(14.0 ~ 16.0kgf.m, 101.3 ~ 115.7lb-ft)

5.
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 all bolts and nuts.
Front Strut Assembly 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 ...

Front Stabilizer Bar 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 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures


High Voltage Shutoff Procedure     Shut off the high voltage circuit before doing any work related with the high voltage system (Battery Pack Assembly, Power Relay Assembly, HPCU, BMS ECU, Hybrid Drive Motor, Inverter, HSG, LDC Power Cable, Electric Compressor, and so on). 1. Turn the ignition ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: NVLD(Natural Vacuum Leakage Detection) Description and Operation


Description NVLD(Natural Vacuum Leakage Detection) is located between the canister and the fuel tank air filter. NVLD is to detect leaks equivalent to a 0.5 mm hole in the fuel tank, canister and hoses. When the engine has been running, the temperature of the fuel in the fuel tank is raised slightly. ...

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