Problem with Brakes, Need Help
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From: Buffalo, NY
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?
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^^^Try checking the seal on the brake fluid reservoir first. Might save you some time and money.
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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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