990 clutch slave cylinder leaking

hi there , am having trouble with the clutch slave cylinder which appears to be leaking fluid, have purchased the outer part ,but now I have taken it off it is in two parts , does any body know if it's more likely to be the first part of the cylinder or the part it goes in to , as its a another £40 I thought I would ask , it also makes a slight noise when the clutch is pulled in like its a leaking noise or is this normal , engine not running when I do this , thanks

In my idea, it would be better just to replace the whole salve assembly. Yes it will be more expensive, but will last longer and no head ache.

I know it sounds expensive but do yourself a favour and get an aftermarket one like Oberon or so.
All issues solved after that, I like to fix things once good.

Plenty of posts already on this do a search on clutch slave or so.

Have got the Oberon one ,did not relise it was in two parts have now ordered the other bit to go with it ,so it should solve the problem,