Oil Pump
repair procedures
expansion
Remove the engine undercover.
(Refer to Engine and Transaxle - "Under Hood")
Drain the engine coolant.
(Refer to Cooling System - "Engine Coolant")
Disconnect the oil cooler lines (A).

Remove the oil filter.
(See Lubrication System - Engine Oil)
Loosen the mounting screws (A) and remove the oil cooler assembly (B).

Installation
Apply a thin coat of engine oil to the oil cooler gasket surface (A). Then install the oil cooler with the mounting bolt (B).
Tightening torque: 44.1~54 N·m

Apply a small amount of engine oil to the oil filter sealing surface, then install the oil filter.
(See Lubrication System - Engine Oil)
Connect the oil cooler coolant hoses (A).

Fill the radiator with coolant and check for leaks.
Test yourself
A quick Kia Stonic quiz: every answer comes with an explanation and a link to the manual page.