Hard brake P-306

[Fannpann]

HELLO TO ALL . 
i have problem with a brake to car 306 1998 1.9td.
First push pedal go to the floor and brake littel, in second push pedal go hard and hard. Vacum is working i was change tube and clean with petrol. What can be the problem : abd pump, master cylinder or booster. Waiting for answer

[Piggy]

Sounds like air in system. Look for leaks or if something has been changed recently....it hasn't been blead properly.

[Fannpann]

Sounds like air in system. Look for leaks or if something has been changed recently....it hasn't been blead properly.

The car was at brake servis and no air in the tube, haved to much in fron left tube but now i think dont have. Im confused what to change next - master cylinder or vacum or booster or abs pump.!! Ur sugestion

[Piggy]

Does pedal go to the floor?

[pug_345]

I have/had same issue turns out it was rear brake shoes and adjustment

[Piggy]

I have/had same issue turns out it was rear brake shoes and adjustment

This will usually result in same 'nothingness' everytime you push the pedal. 

If he is having to 'pump' the pedal to improve it, usually that's air in the system.

[C2K]

Sounds very much like air in the system. Has someone allowed the system to empty? There may be air in the abs pump, which will require you to find a loose gravel surface and make the ABS work to release the air, so that it can be bled out.

[Fannpann]

I have/had same issue turns out it was rear brake shoes and adjustment

Dear i was change fron calipers.. so can u upload one photo to see what is that rear brake and adjustment i cant understen where exacly are they. Thnx a lot for answer

[Piggy]

It's air. Blead the system properly!

It won't be rear adjustment if pumping it fixes it

[pug_345]

Fixed mine no problem since had to pump mine but might be differnt for another that was just my problem

[Fannpann]

It's air. Blead the system properly!

It won't be rear adjustment if pumping it fixes it

Today i changed Abs pump - the pedal in first time no brake good when pres second time brake ok ??? Do need to change master cylinder ( pump ). Thnx to all

[Piggy]

Needs bleading properly!!!!!!

[Fannpann]

This all from 406 i wont to put in 306 can be that possibel!? 
1. Booster
2master cylinder
3 calipers
4. Disc front and rear

[welshpug]

No.

only the master can be made to fit, nothing else is worth the hassle.

[Piggy]

have you bled the brakes properly yet?

[Fannpann]

have you bled the brakes properly yet?

Waiting my brother to done with paint somecar and to empty the garage and i will start change some parts. Thnx for your question u will be informed about my problem.