Brake Fluid leak by resevoir?

norm86

Member
:
2002 Mazda Proteg5 ES
Hi guys, I have a problem with my brake fluid. Every 2 days, I have to fill the resevoir. I fill it up to full, then after 2 days, my brake light comes on telling me that my brake fluid is low. I go check it out, and find out it's at minimum. It's such a hassle refilling this every 2 days. I took a peak at the resevoir area and found out that it looks kind of wet between where the resevoir attaches to the body of the car. It's kind of hard to explain what I mean, but here is an example of an engine I found on the net. What a circled is the resevoir. The wet area is on the circular part of the body, around where that resevoir is connected to it by bolts. Lol, kind of hard to explain. I'll try to post pics later on to show what I mean if people don't understand. And this only happens to me in the Winter Time. It happened to me last winter, but it wasn't that bad. But in the spring to fall season, this didn't happen at all. Any help would be great!

example.webp
 
your brake master cylinder needs to be replaced. that is a classic sign of brake master cylinder failure.
 
yeah definitely needs a master cylinder, if you pulled it off now your brake booster would be full of fluid, thats where its going
 
they're cheap...I am wondering if mine is going too. Rockauto has them for $80-90. Has anyone ever done this? The SM requires SSTs for adjusting the booster before installing a new one. Just curious how hard this is.
 
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