Setting up to remove bumper
Remove these screws from under the wheel arch
Remove these pop out fasteners
There are 2 bolts here that need to be removed
Remove tail lights and there is one pop off fastener and one bolt that needs to be removed from each side
Unplug exhaust valve
The bumper is now ready to be removed , these clips which are on each side above the wheel arches need to be carefully disengaged , I started at the bottom with a narrow trim removal tool to do this , it is a bit fiddly and awkward to do but once these are disengaged from each side the bumper should now be loose.
Disconnect these plugs before removing the bumper
Bumper removed
Underneath of the removed bumper
This piece needs to be removed from the bumper and then the wiring removed from the black piece
Towbar fitted to the car
Wiring that was removed from the bumper added to the towbar
I managed to pull the wiring loom that needed to come from the inside of the car to the trailer plug through this existing wiring loom , with much persistence and some lubricant
This is what I did to get access to the rear interior for the wiring
The wiring , color codes are as follows
The car wiring color is before the plugs that go to each tail light
Control Module - Car wiring
Yellow - Blue (Left Indicator)
Black - Green with black stripe (Left Tail Light)
Red - Green (Left Stop Light)
Green - Red (Right Indicator)
Brown - Brown with Black Stripe (Right Tail Light)
Red with inline fuse - Yellow (Power wired to the 12V outlet on the rear right side of the vehicle)
Black and white wire with a ring terminal - Car chassis (I used the same post I mounted the control module too)
End result
There is a small piece that needs to be cut out from the back bottom of the bumper , I didn't take a photo but it was easy to do , I used a jigsaw and a file to clean it up.
It took me most of the day just to mount the towbar and refit the bumper , I wired it up to the control module the following day.
Hope it helps someone if they are looking to do this and it also proves that there is a bumper available for the I30N FL Hatch.