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Konstantinos 12-26-2012 02:44 AM

R53 calipers
 
My driver's rear brake pads seems to wear out and start grinding before any of the other pads on the car every time. WELL before any of the other ones.

Questions:

Do I need a new rear caliper?

- If yes, should I replace both rear calipers?

- If no, what is the problem? E-brake cable?

rickyr53 12-26-2012 11:25 PM

Dont know the fix to the problem but I had the same thing happen to me. The inner pad on the right rear caliper wore down way before the outer pad.

professor 12-27-2012 12:41 AM

I find that the rear e-brake cable shielding can be bent ( usually while doing a brake job). The bent shielding that is made of metal tubing has enough force to cause the caliper to bind.

But that would cause the inside pad to wear faster but also uneven across that pads surface.

Most likely it is the result of a caliper piston sticking. You can replace a single caliper if the other side is working fine.

Konstantinos 12-27-2012 02:43 AM

Thank you professor.

It sounds like, from what you said, almost definitely bent cable shielding because the wear is highly uneven. Way more towards the outer circumference of the disk, on the inside portion. I will check that next time. Does it need to be replaced or can it safely be bent back out?

professor 12-27-2012 11:15 AM

Bend it back.

vetteburna 01-17-2013 12:53 AM

Had a very similar issue. The problem was that my right rear caliper would rock side to side as I depressed and let off the brake pedal while the other three calipers would remain at a still, like they should be.

So the issue was with the rubber bushings on the bracket itself, one of them was cracked allowing the caliper to drag and wear the pads out quicker on just that side..

Fix? bought a set of aluminum Detroit tuned brake caliper bushings..

http://www.detroittuned.com/tyrolspo...iper-bushings/

never really thought of what caused the issue.. Might of been the result of me ripping the e-brake at 40mph trying get those stunt parking tricks around cones... oh well :D

ScottinBend 01-17-2013 03:49 PM

You can also check to make sure the clips are still functioning and pulling the pad back with the caliper.


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