S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

Rear Caliper Stuck, please help!

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Old 06-02-2009, 04:03 PM
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Rear Caliper Stuck, please help!

Hey guys, I've done alot of searching on here, among other forums and I can't seem to find anything.

I replaced all my brake pads but when I got to the last corner (the rear-passenger side) I was unable to compress the brake caliper piston, it wouldn't even budge a centimeter. So I have a couple questions, one, is there something I can try to fix this caliper or get it to budge? And secondly, if not where can I get a new caliper that won't be super expensive? Thanks guys!
Old 06-02-2009, 09:19 PM
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Thats not good, the caliper piston should move slowly with some effort. There is a possibility it could have "seized", I believe that is the proper term. See if you can disconnect the brake line and take the caliper off and take it to a mechanic to look at, you might be able to rebuild it. Any experienced mechanic can help you before you go to the stealership, even then you can get a rebuilt caliper <$200
Old 06-03-2009, 11:23 AM
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I was worried it was seized, I'm gonna try to mess with it once more today, and if not off it goes. Any DIY on how to remove the caliper without draining all the brake fluid? Maybe this is a stupid question but could I zip-tie the brake line to the caliper off and then remove the caliper? I'm kinda lost here. Thanks again.
Old 06-03-2009, 12:08 PM
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If you don't want to drain it, fold it on itself and zip tie it. Be careful not to damage the line.
Old 06-03-2009, 04:36 PM
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2000 S430, 1999 E 320, 2 K5 blazers,
Not sure if this is the same problem. but this is what i did when i had a problem with the caliber. I put everthing back together and drove it around the block pumping the brake everytime i stopped. went home and tried it again and no problems i was able to push it it right in.

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