Problem with Brakes, Need Help
06-16-2012, 09:55 AM
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I have 2006 530XI and I have a problem with air getting into my brake system. I had the dealer bleed the brakes on two seperate occasions and it only lasts about a month before the pedal gets really soft again. Should I replace the brake booster and master cylinder? Any other ideas?
06-16-2012, 11:05 AM
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My Ride: 2008 535i:
(8/07 Build) Metallic Bronze, Beige NASCA Leather, Ventilated Seats, Sport Pkg, Cold Wxr Pkg, Logic-7 Sound, HUD, Night Vision, PDC, Split Rear Seats, NAV, Premium Pkg, Comfort Access, HD Radio, Sport Auto Trans
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^^^Try checking the seal on the brake fluid reservoir first. Might save you some time and money.
06-17-2012, 11:36 AM
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06-18-2012, 11:54 AM
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My Ride: 2006 530i, Jet Black, Tan, Premium, Steptronic
06-18-2012, 11:58 AM
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Let me clarify. It may not be CLOSED properly or too tight. When you tighten too much you squish the rubber o-ring and you are actually being counter productive because you're introducing a way for air to get in. Probably no need to buy a new cap. There is a one-way breather in most caps
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