E46Fanatics - View Single Post - Caliper Disassembly?
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Old 11-30-2012, 08:58 AM   #10
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Join Date: Jul 2012
Location: Liverpool
Posts: 1,524
My Ride: 320i SE Coupe
Originally Posted by Nerdy46 View Post
Anyone have any pics of the calipers dissembled for rebuild???
I have no pics but I have broken down and repaired calipers in the past without much issue. The rubber boot around the piston tends to fracture, water gets in and can cause rust to form on the exposed piston. If you look at the exploded view for my car the expensive component is the housing. Item 10, REPAIR SET BRAKE CALIPER kit, appears to contain piston, seal and rubber boot for $25, although I would clarify the presence of the piston. The fact that the kit exists is a reasonable indicator that repair is an option to resolving issues. In my case, some years ago, I purchased the seal and the rubber boot. The existing piston was still servicable once the rust on the exposed surface was removed. There was no scoring or pitting on the significant faces. You need to be scrupulously clean when reassembling of course. So I would give the repair a go. Its not that difficult.

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