mine has started making a bit of a groaning noise when parking, just wanna know if its a simple process to change the power steering fluid, and if i can do it at home myself?

disconnect the fluid return line from the resevior, and han that over a container, plug the hole on the reseviour, start the car, get someone to yurn the steering lock to lock, and as the fluid level drops keep topping it up with new fluid, do that until it appears that all the old fluid is gone, turn off car, then remove plug from reseviour, re-connect return line, then top up level, start car, go lock to lock approx 5 times, or until the level appears ok,