No brakes help

[BIG D]

Hi i fitted new calipers to the rear and had some problems with brake pipe meaning i lost a lot of fluid refiled and bled all 4 calipers theres no air in the system but if i pump the pedle it goes hard and if you leave it and the press it again it will go to the floor ive also tried a master cylinder but no luck its still the same.

really getting annoyed with it now do peaple have the same problem as me fix somthing and then somthing else needs fixing 

[Diamond Hell]

You need to trap open the bias valve and then pump determinedly for about 10minutes.  If found the O/S a real git to bleed up and recycled the fluid several times until the bubbles cleared.

[Village Idiots]

Rears are always difficult on Mk2s. Try filling the caliper with fluid before fitting.