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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 10-02-2012, 01:06 AM
aleks001 aleks001 is offline
Aleks
Location: Brisbane, Australia
 
Join Date: Nov 2011
Posts: 452
Mein Auto: 2006 BMW 325i
Angry E90 brake booster valve playing up again, seriously annoying !

This is seriously starting to annoy me, it's clearly faulty from factory, is there an after market replacement. I have a 2006 E90 325i. My main issue was the hard brake pedal in the morning and on traffic lights it would take about 2 seconds for the brakes to disengage after releasing the brake pedal.

So i bought these parts from schmiedmann.com:
34336765316
11667601991

You can just see when you fit the new part that the seal from the gasket to the hose is very loose. So this solved my brake locking issue, because the valve was clearly faulty, but It didn't solve my hard brake pedal. So i used some industrial glue between the seal and hose connector. This solved my issue for about 3 months and now we're back at the start again (loosing vacuum pressure overnight)

This is annoying me to the point where I'm considering trading in the car, I always seem to be replacing something on this car (To be fair I bought the car used with about 70,000 miles) I'm not complaining about things like changing the coils, front wheel/hub's. These are all wear and tear parts, but things like the CD Changer, Bluetooth module and now this brake booster issue that can not be solved with even new parts is really starting to get to me.

Any suggestions for this issue ?
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  #2  
Old 10-02-2012, 04:36 AM
roadkillrob roadkillrob is offline
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Location: Boston
 
Join Date: Aug 2006
Posts: 2,344
Mein Auto: 325CIC, 335CIC
Mine has been like that for years, they tried to fix it 3 times, just would work for between a few days and a month but never longer, the SIB seems to not go far enough replacing parts, this is a great write up on the parts you need to replace to permanently fix the issue.

http://www.e90post.com/forums/showpo...5&postcount=26

ROb
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  #3  
Old 10-02-2012, 05:06 AM
aleks001 aleks001 is offline
Aleks
Location: Brisbane, Australia
 
Join Date: Nov 2011
Posts: 452
Mein Auto: 2006 BMW 325i
This is what I read the first time I attempted to fix it, but I used some glue, so I might have to replace the gasket and the vacuum pipe, but as you can see, this is clearly poor design, we should not have to apply extra sealants to a new part, but that's just my opinion.
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  #4  
Old 10-02-2012, 06:12 AM
roadkillrob roadkillrob is offline
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Location: Boston
 
Join Date: Aug 2006
Posts: 2,344
Mein Auto: 325CIC, 335CIC
totally agree - happens in a chevy when it is like 20 years old and I would consider that ok, but shouldn't happen at 2k miles (that is when mine started acting up) and it is a pain in the ass to replace the parts!
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2014 X3 35i Space Grey/Chestnut/Fineline Wave
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  #5  
Old 10-02-2012, 05:19 PM
aleks001 aleks001 is offline
Aleks
Location: Brisbane, Australia
 
Join Date: Nov 2011
Posts: 452
Mein Auto: 2006 BMW 325i
Quote:
Originally Posted by roadkillrob View Post
totally agree - happens in a chevy when it is like 20 years old and I would consider that ok, but shouldn't happen at 2k miles (that is when mine started acting up) and it is a pain in the ass to replace the parts!
I dont even care if it happened say every 60,000 miles, what bothers me the most is the fact that a new part does not fix the issue, which is just insane in my opinion.
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