Last summer I replaced pads front and rear, and I noticed one of my rear brake dust seals on the piston had a small tear. No fluid leaks. I did a search on the M/A forum, as well as a web search with no success finding a source for the OEM rear brake dust seals. I talked to the local MINI dealer and their parts screen doesn't show a listing for some reason. But they will sell me the whole brake assembly, which includes the seal pre installed..... The R53 shows a part number (item #12) for their dust seal, but cross checking brake caliper P/N's, the R56 changed, so I'm guessing the seal is different. Oh, and I'm not interested in Chinese knockoffs...... Any source for an OEM part would be appreciated... R56 rear Brake R53 Rear Brake Item #12
Good luck. A few years back I was going to rebuild my sons front brakes. I was told you can’t get rebuild kits but they would be glad to sale me the whole thing. Have you tried rockauto?
Thanks for the suggestion.... It isn't listed on the RockAuto web site, but their supplier turns out to be Carlson Quality Brake Parts out of Lima Ohio. I jumped over to the Carlson website and they list both front and rear dust seals. Rear being P/N 15324 for my 2009. Found them on fleabay for $7.31 each. Ordered a pair.....
I'd stay away from buying rebuilt calipers. It seems the quality of rebuilds have gone down. Rebuilding yourself is a good option if you can find the seemingly unobtainium parts. I had a rear caliper go bad on my R53. I bought & installed a rebuilt. It didn't last 6 months. The parts store replaced it. About the same amount of time later poof another duff caliper. At this time I said fark it all & bought a new gold plated caliper from the local dealer. Not cheap, but it did work & kept working.