Originally Posted by dazzasgotav8

just my little bit of input what i think people mean with regards to fluid going back to the master cylinder as well as the crud going back into it, some suffer from the internal seals flipping hence the opening of the bleed screw when pushing pistons back ,the only weak spot i have noticed on the X5 brakes is where the rear flexi brake pipes are in the plastic cover on the swing arm the steel section rots out but you cant see it till its to late ,anyone not checking there pipes needs to soon as, i have replaced all my flexis with stainless braided.