But i set about the other fog light today, took the wheelarch liner off easy enough, although one of them wires clipped onto the side i went to unclip it and it appears to be just cut, i dont know what its for though, should i try and fix it?
Anyhow with the liner off unlike the other side where theres some piece of plastic this side has the washer bottle in the way, to get that off you need to unplug the 2 motors, then theres one bolt at the front which requires the headlight to come out:

it falls out quite easy, just some rubber mount on the inside so you pull the bottle to the bumper and it should come out. Ive solved the problem about the awful smell when the washers are used, the water inside was all stale, the walls were lined in yucky sh*t, so i bleached it and let it steep in boiling water while i went about the job on the fog light.
here it is back in:

how everyone over here drives during the day:

and all the lights on:

definatley worth fixing nothing worse than misty lights, and the smell has gone also