Service and Repair manual for Fifth generation (DL3) of the mid-size sedan Kia Optima. Kia's best-selling midsize sedan was unveiled with new design cues inside and out, expanded ADAS technology, a new UVO infotainment strategy and available European-inspired red and black two-tone sport leather-trimmed seats. Additional available enhancements to the Optima line include new alloy wheel choices, ambient LED interior lighting, and a new Passion Red exterior color.

■ Gasoline engine (THETA 2.4L GDI) The engine number is stamped on the engine block as shown in the drawing.
Schematic diagrams Connector and Terminal function Repair procedures Removal When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.
Components and components location Component Location 1. Relaxion comfort switch 2. Walk-in switch 3. Relaxion comfort seat unit (RCSU) Schematic diagrams Connector and Terminal Function Pin Function Connector A Co