First off remove the front bumper.
Unclip the clips that hold the pipe to the bodywork (these break easily so it maybe easier to pop them up as per pic and take them off the pipe after it's removed)
Undo the bolt holding the cooler pipe bracket to the body, for easier removal of the pipe also remove the 2 x 10mm bolts that hold the metal bar in place 1 at the top and 1 underneath (the bar on the right hand side of the picture)
Next undo the hose clips that fasten the rubber hoses onto the pipe as per the pictures and the other 2 plastic clips that hold the pipe as it comes up the chassis leg.
Beware! You will get oil leaking from the bottom hose and from the pipe itself so have a tray handy.
Once everything is undone the cooler pipe will slide out and it's just a case of putting it back together the same way it came apart. Fill the PAS fluid tank back up to the upper level and run the engine I waited a minute then turned the steering from lock to lock then checked for any signs of leakage and then check and top up the fluid as necessary.
Easily done in under 1 hour.
Replace Power Steering (PAS) Oil Cooler
PAS Oil cooler power steering leak leaking fix