Be careful, when I purchased new disc and pads for the front of my 2.0 CC SE. It took 3 attempts at euro car parts. The initial discs they gave me for my stated model were of too small a diameter. I went back with the original discs. The sales guy then came back to the counter with a second set, which looked ok initially but on closer inspection ( side on) the depth of the inner diameter was wrong, which would have meant the wheel offset would have then been wrong. It eventually turns out that the discs on my car are for the 206 GTI models, which makes sense.
Peugeot are renowned for using different brake discs and callipers on same model cars. I think they just use brake parts from whatever they have in stock at the time.
Best bet is to measure the disc diameter, internal diameter depth and the length between the bolts, I think it’s referred to as PCD. Better still take the old discs with you before purchasing
