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I posted my cracked pistons/piston seals with pictures back in 2008. Can't believe BMW has not done anything to fix this issue! My car had only done 2000km or so at that stage with a few track days. I changed to massive AP Racing brakes and it was the best think for my car. Until today, I still have those 135i brakes with the cracked pistons. Question is, are the pistons ans seals replaceable?
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