replacing one caliper only?
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Re: replacing one caliper only?
Also you should replace your brake hoses because you will find that it is the inner lining of the brake hose that came apart (due to not keeping the brake fluid flushed every 30k i do mine every 20K and using BG high per fluid) and the particles got in the caliper and caused the piston to bind up.
Last edited by Fabrik8; 09-17-2010 at 04:32 PM.
#22
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Re: replacing one caliper only?
Would this (the dimples) bother you? It's one on the one side of this one caliper. I'm not even sure what that metal piece is for.
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Re: replacing one caliper only?
Looks like someone had to coax it in place a little more than usual. I'm assuming that metal piece is probably a separate retaining cap for a seal underneath, or an integral part of the seal itself (as part of a co-molded seal). Actually, the recessed flats on either side would probably mean that the metal piece turns with a spanner. Maybe the metal piece screws over top of a seal. That piece isn't attached to the piston I assume?
#24
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Re: replacing one caliper only?
As far as I can tell, all the metal piece does is cover the dust boot (that "seal" is actually a dustboot, even if you took it off it's not like fluid would go anywhere). The metal piece is a press fit, and it isn't attached to the piston but it does move with it (the dustboot expands and contracts with the piston, and that metal piece moves with it)
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Re: replacing one caliper only?
Oh. Probably a heat shield for the boot, or just a cap to make it easier to install. Either way I wouldn't worry at all about the dimples.
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Re: replacing one caliper only?
What amazes me is that MB was putting 2 piston calipers on these cars, while today pretty much anything other than an M or AMG from BMW/MB gets a 1 piston floating design.
BTW, you might be onto something by saying it's a heatshield - the rear calipers don't have them, and not needing them because there's less heat there would explain that.
BTW, you might be onto something by saying it's a heatshield - the rear calipers don't have them, and not needing them because there's less heat there would explain that.
Last edited by marlinspike; 09-17-2010 at 05:57 PM.
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Re: replacing one caliper only?
Brake fluid doesn't need to be replaced based on mileage, it needs to be replaced based on service life. Time and mileage aren't the same thing for hygroscopic fluids. So if your 30k miles happens to line up with the service life of the fluid, that's fine. But if you drive a lot more (or drive a lot less) during the service life of the brake fluid, you'll be replacing the fluid a more frequently (or less frequently) than recommended.
#28
Re: replacing one caliper only?
I generally do mine based on mileage rather than time, which is every 30,000 miles, which is pretty typical...
http://www.trustmymechanic.com/brake_fluid_change.htm
http://www.aa1car.com/library/bfluid.htm
http://www.trustmymechanic.com/brake_fluid_change.htm
http://www.aa1car.com/library/bfluid.htm
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Re: replacing one caliper only?
I'm assuming MB is saying every year because they can't guarantee that people will use the factory fluid and will instead maybe use DOT3 (which has a 1year change interval).
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