Kia Sportage: Coupling Assembly / Oil hydraulic Motor(Actuator) Description and operation
The 4WD ECM controls the Pump Motor Pump (Actuator) to generating an oil pressure.
The pressure engages a multiple disk clutch to transfer torque to the rear wheels.
The torque to the rear wheels varies according to the pressure on the clutch.

Inspection
All units are filled up with coupling fluid (ultra-low viscosity ATF)
prior to shipping. Inspect ...
Other information:
Components
1. Brake booster
2. Reservoir
3. Master cylinder
...
WARNING - Restraint Location
Never install a child or infant seat on the front passenger's seat. A child
riding in the front passenger seat can be forcefully struck by an inflating airbag
and seriously injured.
WARNING - Hot Child Restraint
A child restraint system can become very hot if ...