MK2 8V Brakes Issue

[JB G60]

Had my discs and pads all round done a few thousand miles ago but recently some times when I press the brakes the pedal goes straight to the floor, it still brakes a bit but is still very worrying. Most of the time it would be spot on braking top notch. Its an '88 8v any ideas what it could be?

[DogDay]

Bleed the brakes 1st - see if it makes a difference - after that i would be thinking check the rubber brake lines & master cylinder

IB

[Spawn_of_Satan_666]

Sounds like you've got air in the system somewhere. Like the above note check for leaks and bleed the system.

[russ-vdub]

deffo master cylinder.. if works most of the time then sometimes straight to the floor then the seals have gone inside the m/s..

[russ-vdub]

also under what conditions does it not work? under hard braking? also id get it sorted ASAP..dnt wana crash and mash your mk2 and get a claim

[JB G60]

also under what conditions does it not work? under hard braking? also id get it sorted ASAP..dnt wana crash and mash your mk2 and get a claim

Doesn't seem to happen under heavy braking strangely enough! Just every now and again while driving normally. Will bleed the system first if it don't do it - on to the master cylinder.
Thanks

[Village Idiots]

You can get this if one of the brakes is rubbing on and getting the calipers too hot...it boils the fluid.

[DarnPB]

I would go for the master cylinder first. A repair kit does not cost much and the job is not difficult. Either way, you will need to bleed the brakes. Do it soon. During winter, you need good anchors.

[russ-vdub]

a repair kit? is that for the m/s.. where would you get one?