Kia Optima: Power Train / Battery

Kia Optima DL3 2019-2025 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)

Air Cleaner Filter
Repair procedures Inspection 1. Remove the air cleaner element. 2. Check if the air filter is excessively dirty. If so, replace the air clean ...

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

Other information:

Kia Optima DL3 2019-2025 Owner's Manual: OFF mode, Climate information screen selection


OFF mode Press the front blower OFF button to turn off the front air climate control system. However, you can still operate the mode and air intake buttons as long as the ignition switch is in the ON position. Climate information screen selection Press the climate information screen selec ...

Kia Optima DL3 2019-2025 Owner's Manual: Automatic heating and air conditioning


1. Press the AUTO button. The modes, fan speeds, air intake and air-conditioning will be controlled automatically by setting the temperature. 2. Turn the temperature control knob to the desired temperature. ✽ NOTICE To turn the automatic operation off, select any button or switch of th ...

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