I have a "small" problem...

some times my brake pedal feels all normal and the car brake´like its supposed to.. other times.. out of nowhere.. I can press the pedal a lot futher down with the result that the car brake poorly..

I have hi spec 4 pot in the front, rear discs in the back og a new brake master cylinder..

and I have bleed the system...

help anyone?

 

wheel bearings all ok?

 

maybe abs??