Spongy brake pedal after trackday :-(

[graham_172]

Hi all, recently went to snetterton for a trackday. on the journey home the brake pedal became spongy and braking became a battle.

i have bled the brake system through manually twice and still spongy.
Has anyone come across this and is there any solution.

Is the master cylinder knackered? or do i need to pressure bleed the system?

any advice would be helpful. urgent replies needed as i can't use the car properly till this is fixed.

And it's the ff 172 with abs and esp.

 

[Steve]

I would of said boiled fluid, but if you have changed it since. Maybe air in the sytem.

I was the opposite, my brakes were ok. Then trackday & they were great.

 

[Fred@BTM]

whats setup?

 

[mattjk]

Does the level go down mark on the tank exactly where it is and check it in the next few days if it goes down then youv got a leak and maybe the master cylinder is on its way out. if it doesnt go down perhaps there is air trapped somewhere in the system.

 

[graham_172]

ktec drilled discs and yellowstuff pads with braided brake lines and 5.1 fluid.

 

[Fred@BTM]

hum, i would suggest you've got air in the abs pump

go and fire off the abs a few times, then pressure bleed it (manually, not with the easzibleed crap)

 

[Neal 182]

I what say the Yellow are fcuked Fred you much re mender the first time we met and Yoz tuke my car out with no brake he said I had boiled the fluid but no the Yellows were at fault

 

[graham_172]

many thanks, i will pressure bleed the system tomorrow.