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DISCUSSION => General Topics => Topic started by: xwill112x on April 19, 2009, 09:06:58 PM

Title: issue with my brakes
Post by: xwill112x on April 19, 2009, 09:06:58 PM

so here lately, my brakes have been real spongey,
so friday i bled the lines, and the right rear line had LOTS of air in it,
after i did that, i test drove it, i was like DAMN, this thing stops like a BMW shoud!

but now, sunday, there spongey again.

any idea how i keep getting air in my lines, with out me opening the system?

and how can i fix this problem?

Title: issue with my brakes
Post by: twright on April 20, 2009, 06:19:51 AM

The first thing to do is look for leaks.  Any sign of brake fluid means that air can probably leak in.  If you see brake fluid, that's the first place to investigate.

Title: issue with my brakes
Post by: xwill112x on April 20, 2009, 11:53:52 AM

i've checked for brake fluid at the calipers, didn't find any.

and my brake fluid level hasn't dropped any so...idk i'm kinda stumped.

Title: issue with my brakes
Post by: 1991 E30 M42 on April 20, 2009, 05:27:37 PM

buy a new car...

make sure there isn't a leak in the grommet between the reservoir and the master cylinder, also check your break lines and make sure they haven't started to bulge out at the crimp fittings

Title: issue with my brakes
Post by: xwill112x on April 20, 2009, 05:36:11 PM

Quote from: 1991 E30 M42;70452

buy a new car...

make sure there isn't a leak in the grommet between the reservoir and the master cylinder, also check your break lines and make sure they haven't started to bulge out at the crimp fittings

i have actually been looking around for a mini S with a decent price and low miles for a while now to DD.

but, i dont see how a leak at the maser cylinder could cause tons or air in the right rear line, but i'll check.



i'll update later.

Title: issue with my brakes
Post by: xwill112x on April 20, 2009, 06:32:13 PM

update*

no leaking from the master cylinder, and only the right rear keeps getting air in it. Fluid only gets low after bleeding the brakes, it rises to top again after driving, air keeps getting in line i assume?

i think it may be a bad caliper, maybe a seal thats letting air in slowly, but no fluid out?

Title: issue with my brakes
Post by: twright on April 21, 2009, 06:32:06 AM

Is it possible that the leak is hidden in the line somewhere back to that wheel?

Title: issue with my brakes
Post by: xwill112x on April 21, 2009, 08:34:08 AM

i think i may just replace all the lines with a  SS/teflon kit from bavauto.