Bleeding Brakes Again!

[PauloGTi]

Hello Everyone!

Can anyone help me!? I keep getting air into my brake system! I have had the brakes bleed but after a few weeks the peddle is really spongey again - after a few days I start to notice a difference.

Just after they are bleed the peddle is really strong - the way it should be! The problem appears to be the back right wheel - this is where the biggest amount of air comes out of! A very little amount in the front left but I feel this is possibly just air passing back through the system!

Is it likely I have a problem with the rear caliper??

Thanks in advance.

Paul

[Rob]

I had a problem a while ago with my pedal going spongy and under braking being thrown all around the road.
In the end i replaced the rear calipers as they seemed to be not releasing enough.
problem solved.
check that the caliper is not starting to seize

[workhorse '90 8v]

Replace with  mk3 rear calipers (slip straight on if you have a 1990 onwards car)

[Helios_Blue_Valver]

is the master cylinder bypassing internally? Pump up the brakes until you have a nice firm pedal then hold it down like you are braking. if it very slowly starts to sink to the floor than it is more than likely the master cylinder.

[PauloGTi]

At the start it all seemed to point to the Master Cylinder but i've replaced it and still get the problem! Think the caliber is starting to seize. Possibly best i just replace them. Unforunately I have a pre 90 car so can't even fit Mk3's which i believe are a lot better!

[Helios_Blue_Valver]

You can still use mk3 calipers you just need the rear brake lines from a post 90 as well as the parking brake cables.