BMW M3 Forum (E90 E92) - View Single Post

radiantm3 · 01-29-2013, 01:52 PM

So while I was swapping my track pads in the other day I noticed the rubber boots on some of the piston rings were really worn. Here's what they look like on the inside of the caliper:

And here's what they look on the outside:

This is happening evenly on both sides of the front calipers. Had these on the car for 1 year now. Normal?

01-29-2013, 01:52 PM	#1
radiantm3 AWD...training wheels for RWD Drives: 11 E92 M3, 13 F25 X3 xdrive35i Join Date: Sep 2008 Location: Fremont, CA Posts: 3,145 iTrader: (5) Garage List 2011 E92 M3 [4.75] 2013 BMW X3 xdrive35 [4.25]	Brembo caliper premature wear. Normal? So while I was swapping my track pads in the other day I noticed the rubber boots on some of the piston rings were really worn. Here's what they look like on the inside of the caliper: And here's what they look on the outside: This is happening evenly on both sides of the front calipers. Had these on the car for 1 year now. Normal? __________________ 2011.5 E92 M3 6MT / 45,000+ miles / 3400lbs with no driver, half tank / M3 GTS Aero, Rear Seat Delete, Half Cage • Schroth 6 Point Harness • Recaro Profi • 18" BBS FI / 18" TE37SL Black Edition • Ohlins RT • Vorshlag Camber Plates • Brembo 380GT • Endless Pads • Akrapovic Evo • RD Sport Sways • ESS Tune • Supercharger Delete (1:42 @ Laguna Seca, 2:09 @ Thunderhill, 1:56 @ Infineon)
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