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:
1. Using a flat-blade screwdriver, gently pry the lens cover from lamp housing.
2. Remove the socket from the assembly by turning the socket counterclockwise
until the tabs on the socket align with the slots on the assembly.
3. Remove the bulb from bulb-socket by pulling it out.
4. Insert a ...
Compression Pressure Inspection
If the there is lack of power, excessive oil consumption or poor fuel
economy, measure the compression pressure.
1.
Warm up and stop engine.
...