Jack both sides of the car up and support on axle stands.
remove road wheels
If fitted, remove the undertray.
remove the arch liners. They're held in place with several screws.
Unscrew and remove the black bonnet latch cover inbetween the two side grills.
Unscrew and carefully prise up the two side grills
Go in through the wheel arch and unscrew the 3 torx bolts on the drivers side that hold the bumper to the lower wing edge. 2 of the 3 are mirrored on the passenger side. The 3rd, nearest the passenger side headlight is just a clip, this should unclip fairly easiliy after eveything else is undone.
Remove the 4 screws that were under the side grills and the the 5 torx bolts un the lower edge of the bumper.
slde the bumper away and rest on the floor temporarily.
Diesconnect the headlight sloshers (drivers side) and the fog lights (connection block by the powersteering oil cooler.
Retire bumper to convienient location.
Disconnect the wiring to the radiator (rad) fans and resistors.
Unbolt the plastic shroud and the aircon rad. There are various 8mm hex head bolts holding it in place around the front and iirc 2 or 3 smaller 6mm? along the bottom edge of the rad.
Unclip the pipes from the rail supporting the underside of the rad,
Squeeze the top and bottom of the metal clip round the bottom connection to the rad and pull it away, draining the coolant into a suitable vestibule.
Disconnect the top hose.
Use a trolley jack to support the bottom rail.
Unbolt the 4 13mm bolts holding the rail to the lower parts of the chassis legs.
Ensure that the air con rad is clear and that your not going to break any fragile alloy connections to it. Support it useing some zip ties.
GENTLY lower the bottom rail radiator and fans.
there is a rubber mount in the centre at the top of the rad. or still on the car, make sure you retain it.
There is a blead screw on at the top of the read on the drivers side. Use it when refilling.
Theremostats don't like being disturbed, dropping the coolant will disturb it. Consider changing it at the same time.
The 4 13mm bolts holding the cros rail on corrode and can snap when you try to remove them. Take your time, loosen them then if it goes tight, tighten them up again and then loosen it a bit more in a back and forth effort. Trust me, you dont wat the headache of drilling them out if you have the choice.