rear calliper seized!

The 200 had a pre mot today only to find the passenger calliper is seized. No power in it at all, so drove straight to renault to get it replaced under warrenty. Only thing is I have coilovers fitted. Where do I stand? It has nothing to do with brakes at the end of the day
 
I had the gearbox replaced when the 200 went in with the Akrapovic zorst and coilovers and nothing was said.

If the mods dont directly affect the part thats fudged you'll be fine.
 
Thanks noddie that's what I thought, the speedlines are having to wait until my new tires and this calliper is sorted!