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      07-13-2015, 07:54 AM   #1
shadowx360
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Drives: BMW 340i
Join Date: Apr 2013
Location: United States

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Top of Brake Pedal Soft

Hey guys, about a year ago I replaced my rotors, pads, and caliper piston seals. That involved leaving the brake lines drained overnight so the next day I filled the master reservoir and pulled about 2 liters of brake fluid through. The brakes felt mushy and soft, so the next week I manually flushed another 3 liters of fluid through the system by pressing the brake pedal, applying a vacuum to the end of the bleeder screw, and loosening the screw, and repeat.

It's been a year since then, and I'm still having a problem with the top 1 inch of the brake pedal feeling very soft. That top 1" does not actually brake at all, my car does not slow down. After that portion, the pedal gets rock solid and my 60-0 stops today are shorter than they were before I did all this brake work. Does anyone have any ideas on what is causing this softness? Like I said, I've flushed over 5 liters of fluid so I don't think flushing any more is going to help.I was very careful in not letting any air back inside the screws when the pedal was released, and I didn't see any air at all for the last 2 liters of fluid.
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