I have a Renault Clio thatīs got a decent leak on it somewhere, but my electronic detector not finding it. Anyway to try and find the leak I bought this dye kit,

http://cgi.ebay.co.uk/UV-DYE-OIL-AIR...#ht_1097wt_939
I didnīt buy of ebay, itīs just the same as that. Anyway, the thing doesnt come with instructions, so has anyone got ones of these? I canīt work out how you are supposed to get the dye in, without getting air in the system at the same time. Can anyone help please?

Thanks,
paul..