just bought car was undriven and in garage for over 10 years has only 8700 miles bled system and installed new master cylinder and bled system again still spongy and have to pump brake to stop vehicle
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Ask Your Question1990 BMW 535i
Question: 90 535i brakes spongy
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Answer #1
pushrod December 16, 2012, 14:11MasterPropperly bleed brake system! Or get a repair shop to fix the problem. You may not have time to pump the brakes next time you need to STOP!!
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beamer 49, December 16, 2012, 15:01ReplyRookieis there anything specific to the braking system of a bmw 535i the system was bled several times with no sign of air thats why we changed the master cylinder yet no help
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Answer #2
your.mechanic December 16, 2012, 15:39
Masterdid you just remove the old master cylinder and put the brand new one in its place...then filled it up with brake fluid?
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beamer 49, December 16, 2012, 19:15Rookiebled system again after replacing
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your.mechanic, December 16, 2012, 20:17Masteroh? so you bled them again for the FIRST time...right?
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beamer 49, December 17, 2012, 05:44Rookiebled the system before we replaced master cylinder and again after we installed new master cylinder
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pushrod, December 17, 2012, 06:01MasterThe problem is there is still a bunch of air in the system may take a GAL. of fluid to bleed!!
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your.mechanic, December 17, 2012, 08:55MasterThere is his problem...he DIDN'T bench bleed the master cylinder...
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beamer 49, December 17, 2012, 09:17Rookieso whats the solution now
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your.mechanic, December 17, 2012, 10:16ReplyMasterbench bleed master cylinder (properly)
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Answer #3
ziptie12 December 18, 2012, 18:25ReplyMasterAfter all the messing with the master cylinder........have you physically removed wheels and observed each individual condition and operation? ALL components removed and inspected?? After sitting for 10 years , might have more than just faulty master cylinder, or that might not have been the problem in the first place?
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