Ordering rear brakes. What size??

[UkraineTrain]

I have a 2014 Leon FR and am trying to find the right brake disk size. It seems that 255mm and 272mm is available. On my production code sticker by the spare tire there is no PR number for the rear brakes (1KW, 1KF, etc.). What would be the right code/size?

 

[Jaco2k]

The only way to really be sure is to remove the wheel and actually measure them...
...but (this is just a guess) I think the smaller of those sizes might not be vented, so that could also be hint.

 

[UkraineTrain]

I found that the FR rear brake code is 1KS with 272mm rotors (also unvented like 255mm).

 

[sweetfr]

It depends on the engine size and ps output. The 2.0 tdi 184ps and the 1.8 petrol 180ps use the 272mm. The 2.0 tdi 150ps and smaller petrol engines use the 255mm.