How do you change oil cooler on a range rover p38?

To change the oil cooler on a Range Rover P38, first, ensure the vehicle is safely elevated and secure. Drain the engine oil and coolant, then disconnect the oil cooler lines and remove any mounting bolts. Replace the old cooler with the new one, reconnect the lines, and refill the engine with oil and coolant. Always check for leaks after starting the engine and allow it to reach operating temperature.