Brake problem mystery

[bmdoubleya]

Sorry again for asking ?? about my subaru but my bimmer is sleeping in her tent.

Saturday I noticed less brake pressure then usual and within a few hours a had no brakes at all.

Now I went to the mechanic today we refilled the brake fluid ( my fluid sensore never came on by the way) I pumped the brake over and over and nothing happen and it is still fine a few hours later.


My car is a subaru legacy I know next to nothing about it but this is very strange where did the brake fluid go the first time??? and why is it not going now??

I have blown a line on the bimmer before but never had experience with a bad master cylinder could that be my problem??
What happens when your master goes??

[aaron_silva]

Your mechanic had no suggestions?

[bmdoubleya]

Well the car was soaked underneath so it was hard to tell but I pumped the brakes like 50 time and lost no fluid.

I've been driving the car all day now and it seems to be fine

[crazyvadim]

Are you losing fluid now??
Maybe you were just low on fluid or your brake master cylinder is leaking fluid.

[chromius]

when you lost the brake fluid was it really cold? I have seen it where the brake pressure regulator will leak pretty bad when the wheather is really cold, but will be fine when its warmed up a little.

[bmdoubleya]

It was cold but not even -20

This is just plain crazy where did my brake fluid go

My car is still fine 3 days later I just dont get it