From what I understood after reading so many forums is that the generation 1 PCCb had that problem. Don't think it is still an issue. 

The main reason I went PCCB is the squeaking, it is very terrible on the Reds. Given I use my car as a DD also I really can not be driving and squeaking all day long. 

I have the PCCBs on my current 2009 4s and I haven't had any problems yet.

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