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

Replacement
1.
Remove the rear wheel & tire.

Tightening torque:
88.3 ~ 107.9 N.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.
Remove the sprit pin and castle nut and then disconnect the rear assist arm (A) from the rear axle.

Tightening torque:
78.4 ~ 88.3N.m(8.0 ~ 9.0kgf.m, 57.8 ~ 65.1lb-ft)

3.
Loosen the bolt & nut and then remove the rear assist arm (A) from the sub frame.

Tightening torque:
107.9 ~ 117.7N.m(11.0 ~ 12.0kgf.m, 79.6 ~ 86.8lb-ft)

4.
Installation is the reverse of removal.
Inspection
1.
Check the bushing for wear and deterioration.
2.
Check for all bolts and nut.
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 ...

Trailing 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 ...

Other information:

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


Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal. 2. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group). 3. Disconnect the injector connector (A). 4. Remove the wiring harness bracket mounting bolt (B). ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Relay Box (Engine Compartment) Repair procedures


Inspection Power Relay Test (Type A)     – Do not use pliers. – Pliers will damage the relays, which could cause the engine to stall or not start. – Carefully remove the relay using the relay puller. Check for continuity between the terminals. A : Rear defogger relay B : EWP relay C : ...

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