the air is coming from join in master cyl to servo u can feel it coming out.. i bleed the brakes propperly with an easy bleed kit today and think i might have found the problem i got peddle to go quite hard but still not right. the rear drivers side when bleeding no fluid came out for ages then got it to come thew and if i keep pumping for ages it seem like nearlly all air is gone but when u stop try again loads and loads more air come out so sounded like got an air leak.i had a new piece of brake line made up the other week and one of the ends has not got right one think its concave or convex but its wrong one so looks like its not been sealing propperly going to get new one made tomorow so hope fully will be sorted