Thanks for the reply, I will take the rad out and then have a look at all the tabs and see if I can recrimp them.
Out of interest does anyone know where can I get a stock replacement as I can’t seem to find any?
Looking at the car it seems that I have a S2 rad and intercooler and an S1 turbo set up as it is not water cooled, the additional water pipe is just routed back to the top hose. I suppose a stock non-turbo rad would work but would be too long with the standard intercooler that I don’t want to change currently.