Kia Optima DL3: Power Train / Battery

Kia Optima DL3 2019-2026 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.

2.

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)

3.

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.

2.

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)

3.

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)

    Repair procedures Inspection 1. Remove the air cleaner element. 2. Check if the air filter is excessively dirty.

    Repair procedures Inspection Radiator hoses 1. Check radiator hoses for the following: (1) Improper attachment (2) Leaks (3) Cracks (4) Damage (5) Loose connections (6) Chafing (7) Deterioration Coolant level 1.

    Other information:

    Kia Optima DL3 2019-2026 Service and Repair Manual: Integrated Body Control Unit (IBU)

    Components and components location Component Location 1. Integrated Body Control Unit (IBU) Schematic diagrams Connector and Terminal Function [Non-Smart key] Pin Function Connector A Connector B

    Kia Optima DL3 2019-2026 Service and Repair Manual: Heater Core

    Repair procedures Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower assembly. (Refer to Heater - "Heater Unit") 3. Loosen the mounting screws and remove the heater core cover (A).

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