Kia Optima Hybrid: Tires/Wheels / Tire Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Suspension System / Tires/Wheels / Tire Repair procedures

Tire wear

Measure the tread depth of the tires.

Tread depth [limit] : 1.6 mm (0.063 in.)

If the remaining tread depth (A) is less than the limit, replace the tire.

When the tread depth of the tires is less than 1.6 mm(0.063 in.), the wear indicators (B) will appear.

Wheel Repair procedures

Hub nut tightening sequence Tighten the hub nuts as follows. Tightening torque: 88.3 ~ 107.9N.m (9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft) When using an impact gun, final tightening torque should ...

Other information:

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

Troubleshooting SymptomSuspect AreaReferenceLower pedal or spongy pedal1. Integrated Brake Actuation Unit (Air in)air·bleed2. AHB system (Fluid leaks)replace3. Piston seals in IBAU (Worn or damaged)replaceBrake drag1. Brake pedal free play (Minimum)adjust2. Pad or lining (Cracked or distorted)replace3. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Knock Sensor (KS) Description and Operation

Description Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking. When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element. ...