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  #11  
Old 02-05-2008, 06:51 PM
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Caliper replacement

I called autohauz and they had none instock...two weeks. I finally got a rebuilt one from BMWPartsOnly.com...$58 for a recondtioned unit plus my old one in exchange...should be here Friday.....so now how to replace it without getting air into the brake system? There must be a clamp of some kind that stops the fluid coming out?

Gary
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  #12  
Old 02-05-2008, 07:19 PM
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It's been my experience that whenever you do a brake job, pads only, pads and rotors, you bleed the system, regardless. Since changing the caliper means unhooking the brake line, there's no way to avoid not having to bleed the brakes.
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  #13  
Old 02-05-2008, 07:48 PM
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Caliper replacement

Yes...I know I will have to bleed the brakes but I wanted to eliminate as much as air getting into the system as possible. Fortunately the damaged caliper os the drivers front which is the closest to the reservoir.

Gary
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  #14  
Old 02-05-2008, 08:09 PM
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You'll need an assistant for this:
Have a tall container with extra clean fluid in it..make sure you have plenty in the resevior. When unhooking the brake line and pumping the brake, place the line in the container of fluid and pump the brake a few more times for good measure. Keep the line in the container until you finish changing the caliper.

Hope this helps?
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  #15  
Old 02-05-2008, 09:25 PM
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Caliper replacement

Good suggestion...to be clear can you verify that the assistant should pump the breaks and hold down the pedal while I unhook the hose and keep it down until everything is hooked up again?

Thanks for the suggestion.

Gary
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  #16  
Old 02-05-2008, 10:29 PM
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Correct.... keep the flow going out as the pedal goes down then quickly place the hose into the container submerging the hose end into the fluid so when the pedal returns up, it will suck up fluid and not air.

It will be a little messy this way but will keep air from being sucked up into the brake lines.
Key thing is don't let the reservoir (sp?) go empty.
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  #17  
Old 02-05-2008, 10:57 PM
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Caliper replacement

What do I do when I take the house out of the bottle to connect it back to the caliper? Should the helper press the pedal down and keep it there?

gary
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  #18  
Old 02-06-2008, 02:29 AM
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gary,

got your pm. reply sent.

don't mess with the pedal when unhooking the hose. any mis-timed release or pump will draw air into the system.

just remove the hose, and block the line with something, anything. you won't draw air into the system. you will lose fluid. just quickly plug the hose back into the caliper and then do a full bleed and you'll be fine.

good luck
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  #19  
Old 02-06-2008, 03:56 PM
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Exclamation

Please read my post regarding caliper replacement and save yourself $450:

http://www.xoutpost.com/x5-e53-forum/...s-control.html
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