Master Cylinder ?? - PeachParts Mercedes-Benz Forum

mreid · #1 10-25-2003, 07:59 PM

I decided to change the brake fluid. Everything went well, did the back first then went to front. This is where things went south. As soon as I tried bleeding the front brakes I lost all pressure and could not get any fluid out the bleed screw. Could not get anything after that.
Any ideas?? Did the master crap out that fast, because all was fine till I went to the front brakes

mreid · #2 10-25-2003, 08:10 PM

Forgot to mention that I have absolutlely no brakes at all on the front. Zippo. I am baffled. Never seen a master go dead that totally.

Kestas · #3 10-25-2003, 08:38 PM

When you say master cyl went dead, do you mean that no pressure was developed, that is, that the brake pedal just flopped to the floor with no resistance, or that there is resistance in the pedal and that no fluid comes out of the bleeder?

Did the master cyl go dry at any point during bleeding fronts or rears?

mreid · #4 10-26-2003, 12:50 AM

Moderate resistance but no fluid at the bleeder. It has me baffled. I removed a brakeline at the master and was able to push fluid down the pipe and out the bleeder with ease. So I am assuming that the master hatched.

mreid · #5 10-26-2003, 12:54 AM

Also I am sure the resevoir never ran dry. The back circuit did get low at on point but quite sure it never ran dry. That would not affect the front wheel circuit would it?