Kia Optima: Vehicle ModificationsThis vehicle should not be modified. Modification of your Kia could affect its performance, safety or durability and may even violate governmental safety and emissions regulations.
In addition, damage or performance problems resulting from any modification may not be covered under warranty.
Emission Control System
Engine Exhaust Gas PrecautionsRemoval
Brake Booster
1.
Turn ignition switch OFF and
disconnect the negative (-) battery cable.
2.
Remove the air duct (B) and air
cleaner assembly (A).
...
Underdrive Brake Control Solenoid Valve(UD/B_VFS). Description and Operation
Description
Underdrive brake control solenoid valve(UD/B_VFS) is attached to the valve body.
This variable force solenoid valve directly controls the hydraulic pressure inside
the underdrive brak ...
Odometer
The odometer indicates the total distance the vehicle has been driven. ...