I've got myself into some serious trouble here. I've asked around but nobody seems to be able to tell me what's wrong as nobody i knows drives a French car. Appearently French cars are "special" when it comes to lower radiator hoses as everyone else seems to have the simple "o-ring clamp" style attachments whilsts my own car has a "Bayonet" attachment.
My radiator had a small crack in the plastic area near the upper radiator hose, it was leaking a little bit and i figured it'd be best to replace the radiator incase it cracked wide open while driving somewhere far away. I ordered a new radiator but sadly the lower hose attachment was different so i returned it. I already took my old one out and decided to put it back in.... this is where all the trouble started. The lower radiator hose won't close properly and i can by the life of me not figure out why. I got new o-rings but this didn't help one bit and it leaked just as bad. I inspected the radiator and the hose itself incase i damaged either one of them while i took it out, this didn't seem the case.
I've looked around everywhere but other brands don't seem to have this thus help is hard to find. The only thing i've been able to find is people complaining how much of a pain in the bum these "French fittings" are
Seeing as i can't drive without a radiator and fluid won't stay in, i'm stranded... which is a huge issue as one might imagine. Is there anyone here, by any chance, that could tell me what on earth i might be doing wrong or how i might be able to fix this ? I added two pictures to show what hose i'm talking about.


It's a 1998 (march) Citroen Xsara 1.4i Berline, any help would be extremely appreciated!