Kia Optima Hybrid: Hydraulic System / Components and Components Location

Component Location

1. Automatic transaxle assembly
2. Machanical oil Pump assembly (MOP)
3. Valve body assembly
4. ATF Warmer
5. Electric oil pump (EOP)

Description and Operation

Description The hydraulic system consists of oil, an oil filter, oil pump, and a valve body (valves and solenoid valves). The machanical oil pump is in the transaxle and is mechanically turned by the input ...

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 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Relay Box (Engine Compartment) Repair procedures


Inspection Power Relay Test (Type A)     – Do not use pliers. – Pliers will damage the relays, which could cause the engine to stall or not start. – Carefully remove the relay using the relay puller. Check for continuity between the terminals. A : Rear defogger relay B : EWP relay C : ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: NVLD(Natural Vacuum Leakage Detection) Description and Operation


Description NVLD(Natural Vacuum Leakage Detection) is located between the canister and the fuel tank air filter. NVLD is to detect leaks equivalent to a 0.5 mm hole in the fuel tank, canister and hoses. When the engine has been running, the temperature of the fuel in the fuel tank is raised slightly. ...

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