Kia Optima: Power Train / Battery

Kia Optima DL3 2019-2023 Service and Repair Manual / Maintenance / Power Train / Battery

Repair procedures

Inspection

[NU 2.0 MPI]

Battery Voltage and Status

Check the battery voltage and status by using a battery tester.

Battery Terminal

1.	Move back and forth to check if the battery terminals (A) are loose or corroded. Clean any corroded terminals. If the battery positive connection is loose, disconnect the ground (GND) cable first before attempting to remove or tighten the positive connection to prevent personal injury.

If the battery clamp on positive (+) battery terminal is not seated securely:

(1)	Turn ignition switch OFF and disconnect the negative (-) battery terminal.

(2)

Tighten battery clamp (A) on positive (+) battery terminal.

Tightening torque :

7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft)

If the battery clamp on negative (-) battery terminal is not seated securely:

(1)

Tighten battery clamp (A) on negative (-) battery terminal.

Tightening torque :

4.0 - 6.0 N·m (0.4 - 0.6 kgf·m, 3.0 - 4.4 lb·ft)

[THETAⅢ 2.5 GDI]

Battery Voltage and Status

Check the battery voltage and status by using a battery tester.

Battery Terminal

1.	Move back and forth to check if the battery terminals (A) are loose or corroded. Clean any corroded terminals. If the battery positive connection is loose, disconnect the ground (GND) cable first before attempting to remove or tighten the positive connection to prevent personal injury.

If the battery clamp on positive (+) battery terminal is not seated securely:

(1)	Turn ignition switch OFF and disconnect the negative (-) battery terminal.

(2)

Tighten battery clamp (A) on positive (+) battery terminal.

Tightening torque :

7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft)

If the battery clamp on negative (-) battery terminal is not seated securely:

(1)

Tighten battery clamp (A) on negative (-) battery terminal.

Tightening torque :

7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft)

Air Cleaner Filter

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Cooling System

Repair procedures Inspection Radiator hoses 1. Check radiator hoses for the following: (1) Improper attachment (2) ...

Other information:

Kia Optima DL3 2019-2023 Service and Repair Manual: Cooling System

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Kia Optima DL3 2019-2023 Service and Repair Manual: Battery Sensor

Description and operation Description Vehicles have many control units that use more electricity. These units control their own system based on information from diverse sensors. It is important to have a stable power supply as there diverse sensors giving a variety of information. ...