I had the same issue -- broken bleeder screw shaft on in the rear caliper of my 2008 135i, with the fancy Brembo calipers. I also ended up buying a new caliper after multiple unsuccessful attempts to remove the old bleeder.
I'm pretty happy now, but I figured I would buy some replacement screws so that, at some point down the line I could swap in the new screws. In my estimation, the bleeder screws are soft, "sacrificial" parts that will die so that the calipers don't get damaged.
Trouble is -- I can't find a part number for the rear bleeder screws. The front screws are 34-11-6-780-509 and that's easy to discover. But I can't find any part number for the rear screws. Does anyone know -- are the front and rear Brembo bleeder screws just the same part, for the 2008 e82 135i? Thanks all!
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