Hey guys, bled my brakes yesterday due to the pedal being very soft and spongy and pretty much hitting the floor, now after the pedal is stiff at first and then softens up and is hard at the bottom again which is even sketchier than before because it brakes unevenly. What are some signs that it might be the master cylinder or brake booster? Thanks!
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Soft brakes, air leak?
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1989 - E30 - M20B25 - Manual. Approx 300,000+ miles - Track Rat & Weekend Fun
2000 - E46 - M52TUB28 - Manual. Approx 130,000 miles - [not so] Daily Driver
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I'm looking for a Lachssilber Passenger Fender and Hood. PM if you have one or both to sell!
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Originally posted by FLG View PostLosing any fluid? If you pump the brakes do they return?
Looks like a master cylinder issue.
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Originally posted by Andy.B View PostBad booster would cause a vacuum leak and constantly stuff pedal.
Sounds exactly like a bad matter. Push rod seal is holding, but the internal seals are leaking past each other.
Sounds exactly like mine before I replaced it.
Sent from my Galaxy NexusGot all da Alpine bitches mad cuz my main bitch Calypso.
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Originally posted by MR.LUGO View PostAh, i see. Makes sense. Well i guess it wouldn't hurt to replace it. Hopefully that'll do it. Thanks!
I suppose I don't know what people's budgets are for these things, but the two places I found online that would sell a brake master cylinder were pushing $200+
If I can rebuild calipers, differentials, and heads, I should be able to buy a $20 gasket set to rebuild a Brake MC instead of dropping a track days worth of money on a new one. Or am I missing something? I hope I'm missing something.-------------------------------------------------
1989 - E30 - M20B25 - Manual. Approx 300,000+ miles - Track Rat & Weekend Fun
2000 - E46 - M52TUB28 - Manual. Approx 130,000 miles - [not so] Daily Driver
sigpic
I'm looking for a Lachssilber Passenger Fender and Hood. PM if you have one or both to sell!
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Originally posted by Earendil View PostCouldn't hurt?
I suppose I don't know what people's budgets are for these things, but the two places I found online that would sell a brake master cylinder were pushing $200+
If I can rebuild calipers, differentials, and heads, I should be able to buy a $20 gasket set to rebuild a Brake MC instead of dropping a track days worth of money on a new one. Or am I missing something? I hope I'm missing something.Got all da Alpine bitches mad cuz my main bitch Calypso.
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Originally posted by FLG View PostJust replaced mine with a 740il Mc (25mm) and love it. Brakes are super firm.
Paid 135ish for a new ate Mc
Sent from my Galaxy Nexus using Tapatalk 2Got all da Alpine bitches mad cuz my main bitch Calypso.
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Running into what seems to be the same issue on my ix, planning to replace the calipers with some spares that actually bleed before I actually swap out the master.Originally posted by priapismMy girl don't know shit, but she bakes a mean cupcake.Originally posted by shamesonUsually it's best not to know how much money you have into your e30
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