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Old 08-31-2008, 01:50 AM   #12
330i ZHP
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Originally Posted by sgtfury40 View Post
When you compress the brake cylinder back into the caliper, to get the new pads to clear the rotor, you have to loosen the bleeder on the caliper to relieve the pressure, otherwise you can't press the cylinder back. When you do that brake fluid will, of course, come out of the caliper, and if you are not careful it will suck air back in through the bleeder.
NO, you never release the bleeder valve to compress the piston into the caliper....you use the proper tool or a large channel lock wrench to compress it...

Yes, it is likely you have air in the system since you opened it - bleed properly, in fact have someone else do it if you opened the system to compress the piston....NONONONONONO

good luck
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