Hey Tom thanks for your comment lets see...
we checked the hoses on leaks but didnt find any i am not sure if it are real vacuum hoses so i will check that out when i get home
[Q] - Do they lock on the moment the car is started, or do they stay on after the first push :
[A] - they...
Oh its from the servo my bad but the master cylinder has been fully replaced --- i just replaced seal nr 20 of the servo with the smaller one from before but will bleed the brakes tomorrow ---> we replaced the master cylinder because it was beyond saving
Hmmm its instaled correctly removed it placed it back but no difference ---> brakes work without the engine running or when the
hose from the engine intake is not attached [brakes are not assisted then]
any other sugestions?
Little update on the brakes bleeding succesfull --- thanks to the tip from "sdibbers" ---> next thing is that the brakes go stiff when running the engine without running engine its possible to press multipole times but with the engine on it goes stiff in an instant
perhaps the brake booster?