Display electr. parking brake C-Max

Hello together, so first of all I have to swarm along here. I picked up the C-Max Ghia 2.0 l diesel on Tuesday with everything zipp and zapp and am totally happy. Ok. apart from the fact that the idiots (excuse me) forgot to install us the heated Solar-Reflect disc. I’m curious what a solution comes now. Do you think this is retrofittable? ABer now the other question. Usually the display of the “Handbrake” (electrically fixed brake) when starting constantly (Permanent signal) until you solve it. Since yesterday it flashes? Does anyone know what that can be? Unfortunately, the board book does not have here either, that’s good at home.