Kia Optima DL3: Specifications & Consumer information / Air conditioning system

We recommend that you contact an authorized Kia dealer for more details.

    To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct lubricants also help promote engine efficiency that results in improved fuel economy.

    Other information:

    Kia Optima DL3 2019-2026 Service and Repair Manual: Compressor oil

    Repair procedures Oil Specification 1. The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2. Compressor (PAG) oil varies according to compressor model.

    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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