My jaguar xtype has problems with brake.
all four are locking after i am driving for some while!!allready changed master cilinder,calipers repaired......whath could be the problem??????

 

Sounds like a problem with the ABS unit. You have replaced the other common components and since it is affecting all 4 wheels, that narrows down what the possible source of the problem is. If you do some looking here on the site, others have had the same issue and you can get a few checks that you can make to help confirm what I am saying.

 

Did you or anyone do brake work recently (pads, bleeding, etc.)? If so read this ENTIRE thread for a possible cause, reason and fix =

https://www.jaguarforums.com/forum/x...-208617/page2/

If not that then as Thermo said, probably ABS module.

 

very easy! your brake booster is the problem ,when you changed the master cylinder theirs a rod in the booster it has 7mm nut on the end
get a friend to push the pedal all the way down
2 = get a needle nose and grab the stem the turn the 7mm nut on the end 3 -4 times in bolt it back together and your done
doooooo not buy a new booster just adjust the one you have the way i told you