Kia Optima Hybrid: Hydraulic System / Oil Pump Description and Operation

Description
Machanical Oil Pump (MOP)
The oil pump is built in the transaxle as a single unit with the 26 Brake (26/B) chamber. Rotation of the pump builds the hydraulic pressure needed for the lubrication of the various parts of the transaxle and operation of the clutch and brakes. The oil also circulates through the driving motor and the cooler.
Oil pump operation flow

1. Inlet (Oil filter) 
5. 35R/C (35R Clutch) operation pressure
2. Inlet (Valve body) 
6. Lubrication
3. Outlet 
7. E/C (Engine Clutch) Lubrication
4. 26/B (26 Brake) operation pressure
8. E/C (Engine Clutch) Operation pressure

Components and Components Location

Component Location 1. Automatic transaxle assembly 2. Machanical oil Pump assembly (MOP)3. Valve body assembly4. ATF Warmer5. Electric oil pump (EOP) ...

Oil Pump Components and Components Location

Component 1. Flange bolt2. Sleeve3. Reaction shaft support assembly4. Driven gear 5. Sleeve6. Driven gear 7. Oil pump housing ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Overdrive Clutch Control Solenoid Valve (OD/C_VFS) Repair procedures


Inspection 1. Turn ignition switch OFF. 2. Remove the air duct (A). Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft) 3. Remove the air cleaner assembly. (1) Disconnect the breather hose (A). (2) Disconnect the air intake hose (B) and then remove the air cleaner assembly (C). Tightening ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Rear Disc Brake Repair procedures


Removal 1. Remove the rear wheel & tire. Tightening torque: 88.3 ~107.9 N.m(9.0 ~11.0 kgf.m, 65.1 ~79.6 lb-ft) 2. Remove the rear upper arm (A). 3. Loosen the hose eyebolt (C) and caliper mounting bolts (B), then remove the rear caliper assembly (A). Tightening torque: Brake hose to caliper (C): ...

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