Kia Optima: Removal - Underdrive Brake Control Solenoid Valve(UD/B_VFS). Repair procedures - 35R Clutch Control Solenoid Valve(35R/C_VFS). Description and Operation - Automatic Transaxle System - Kia Optima TF 2011-2026 Service ManualKia Optima: Removal

Replacing an on/off solenoid valve (SS-A, SS-B) does not require additional hydraulic pressure adjustment; however, the hydraulic pressure will need to be adjusted after replacing the VFS solenoid valve. If replacing the VFS solenoid valve; also replace the valve body assembly. (Refer to "Valve Body" in this group)

Inspection
1. Turn ignition switch OFF. 2. Disconnect the oil temperature sensor connector. 3. Measure resistance between sensor signal terminal and sensor g ...

Overdrive Clutch Control Solenoid Valve(OD/C_VFS). Description and Operation
Description Overdrive clutch control solenoid valve(OD/C_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure inside the overdrive clutc ...

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Rear Seat
The rear seatbacks fold forward to provide additional cargo space and to provide access to the trunk area. To fold the rear seatback(s) down, press the unlock button located on top of the s ...

Warnings and indicators
All warning lights are checked by turning the ignition switch ON (do not start the engine). Any light that does not illuminate should be checked by an authorized Kia dealer. After starting the en ...

Changing the coolant
Have the coolant changed by an authorized Kia dealer according to the Maintenance Schedule at the beginning of this section. CAUTION Put a thick cloth or fabric around the radiator cap befo ...

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