Hi i am changing my pads soon took me wheels of to clean them and take a look at the pads thay are low,putwd40 on on the bleed nipples checked the [ flexible hose shuould thay fill that hard to squeeze.] Checked the reservoir topt up with out taking the m.a,s off took 5 mins.As anyone usd battry acid to cleen there weels it woks ok on brake dust. thanks Dave