Mercedes rear brakes locking up

Month ago My rear brakes went on fire! They told me since the pads were sticked to the disc I need to replace the calipers. Well I did it. I installed brand new calipers change the brake fluid and went driving. 2 miles later I was on fire again. Now they told me it is the cylinder or the booster, but I don't know what should I do!. I need help. please.

Forums

Body and Interior Specific Aid

Chassis Model Number

W123

Rear brake hoses or master cylinder

The problem you are experiencing could be caused either by rear brake hoses that are rotten internally or my bad seals in your master cylinder. The brake booster is not the problem.

You probably should replace both rear hoses, the master cylinder and do the front hoses at the same time especially if your car is over 18 years old and you have no records that these items have been replaced. I have just finished by instructions for replacing these hoses. This new kit will include a special wrench along with the proper brake fluid and tips on bleeding your brakes. Kit will be available for purchase Dec. 9. Here is a picture of the new kit.

Thanks for the quick

Thanks for the quick reply!.
Yes I already purchased the rear brake hoses but I haven't thought of the master cylinder or the front brake hoses. If you think i should get them, i guess i will do it. Have to check pricing though. If I can't afford all of this right now, can i just replace the rear brake hoses and then do the cylinder and the front brake hoses later? Ivo

Your call

Keep in mind your problem MAY or MAY NOT be the rear brake hoses. It is possible it could even be a combination of both hoses and master cylinder. You can try the hoses first, but if that does not help you will have to open up the system, replace the master cylinder and bleed the brakes all over again.