Thread: brake issue
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Old 01-17-2013, 12:22 PM
JKRIT JKRIT is offline
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Location: Hollis, NH
Join Date: Feb 2008
Posts: 1,036
Mein Auto: '03 525i
Because you don't know whether you are getting air bubbles from the caliper or from around the threads of the bleeder, so you don't know if you are ever done. Using vacuum bleeding, some people have reported having to use a small amount of heavy axle grease on the bleeder screws to prevent the air from sucking past the threads.
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