do I need to bleed the master brake cylinder?
08-27-2019, 09:18 PM
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My Ride: 530i
Model Year: 2004
do I need to bleed the master brake cylinder?
rear brake pipes rusted and burst, all fluid leaked out, master cylinder is empty, I'm pretty sure there's air in there. After I replace the brake pipes, do I need to bleed the master cylinder? Why? What if I don't and just fill it up with brake fluid and bleed all 4 calipers? No? How difficult is it? Is there a DYI on it for the E60?
08-28-2019, 04:15 AM
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If the master cylinder emptied, so did the DSC pump. According to the shop manual, the only proper way to bleed the system after fluid loss is using a scanner that can pump/cycle the ABS in conjunction with a pressure bleeder on the master cylinder reservoir. No way to get all the air out otherwise.
09-11-2019, 05:20 AM
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My Ride: 530i
Model Year: 2004
If the master cylinder emptied, so did the DSC pump. According to the shop manual, the only proper way to bleed the system after fluid loss is using a scanner that can pump/cycle the ABS in conjunction with a pressure bleeder on the master cylinder reservoir. No way to get all the air out otherwise.
09-19-2019, 09:41 AM
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My Ride: 2007 530xi: Sport, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, HD Radio, SAT, Custom NCS coded options 2008 535xi: Sport, Night Vision, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, SAT, Custom NCS coded options, Rear Seat Heat Retrofit, Passport 9500ci
Model Year: 2008
Engine: N54
Just did this with my Foxwell unit - it works
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