Whoever had the car before me has left the cables loose and the ends have frayed against the hubs… mine is goosed so either way I need a replacement set up
I guess the first thing to do then would be remove the whole lot and have a look. It may well be repairable with new cables and gears
If not a secondhand unit from evilbay maybe.
A friend of mine fitted one of these Chinese D4 EPB and he's happy with it so far. If you go that way make sure it fits your modell...i'm not so sure that the expensive ones are not made in China as well