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-   -   Passenger side brake caliper always difficult (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/102045-passenger-side-brake-caliper-always-difficult.html)

DanSanDiego 10-18-2015 12:44 PM

Passenger side brake caliper always difficult
 
pizza

upallnight 10-18-2015 12:49 PM

If you can't push the piston back in with just moderate pressure or a c-clamp, you either need to rebuild the caliper with a new piston or buy a rebuilt calipers. The brake disc on the piston side of the calipers will never get push back far enough that it is not contacting the rotor and you will wear out that disc again. Plus you will over heat the calipers which isn't very good for the brake or the brake fluid.

rhusbands 10-18-2015 03:46 PM

:iagree:I agree with UpAllNight and Trader4. :thumbup: If the piston requires that much force to move, it will not return to normal "rest" after applying the brakes. This results in constant pressure on the brake pads and rotor causing huge heat build up in the rotor, pads and fluid. This causes premature wear, and could result in a catastrophic failure. Either a new or rebuilt caliper is called for, or rebuild your existing if possible. Usually you can buy a rebuilt with a core charge, and then send your original back to recoup the cash.

kevinkay 10-25-2015 08:23 PM

One of my calipers wasn't releasing properly. Replaced it with a re-buit ($60). Then rebuilt the other 3 myself at $25. each in parts.

KEEP THE BRAKE PEDAL ABOUT 1/2 WAY PRESSED WHEN OPENING BRAKE LINES - it keeps the fluid from all leaking out, then you only have to bleed the one your working on. From what i read if you get air in the antilock components your screwed.

rhusbands 11-17-2015 02:19 AM

Quote:

Originally Posted by DanSanDiego (Post 1058457)
In the end I returned them and bought Bosch Posi-quiet pads. They are great so far (3 days and about 240 miles). No a peep out of the and same pedal feel as OEM.

Good to know! Thanks for the info/feedback!
;)


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