Kia Optima: Second generation (MG; 2005–2010)

First generation (MS; 2000–2005)

From 2000-2005 Optimas were a rebadged variant of the Hyundai Sonata, differing only from the Sonata in minor exterior styling details and equipment content. ...

Third generation (TF; 2011-present)

The completely redesigned Optima features a much sleeker, sportier profile designed by new Kia design chief Peter Schreyer. ...

See also:

Line Pressure Control Solenoid Vale. Specifications
Specifications Direct control VFS[LINE Pressure]▷ Control type : Normal low type Control Pressure kpa(kgf/cm², psi) 500.14~9.81(5.1~0.1,72.54~1.42) ...

Replacement
1. Remove the rear wheel & tire. Tightening torque:88.3 ~ 107.9 N.m(9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft) ...

Multimedia Jack. Schematic Diagrams
Circuit Diagram ...