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      04-02-2015, 09:55 PM   #45
joeo
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I've switched to the PFC08 pads and added brake ducts (http://www.1addicts.com/forums/showt...1030176&page=2)

I've just used the Turner Motorsports caliper rebuild kit on the front; we'll see how that goes.
When I rebuilt my calipers, the dust boots were gone and the ceramic piston caps were gone, but the seals looked fine. If you want to keep the stock calipers, then it's just going to be a maintenance thing. Every once in a while, rebuild the calipers.

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      04-06-2015, 06:25 PM   #46
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Quote:
Originally Posted by 02rsxpilot View Post
For the record, my dust boots began failing on a completely stock setup. I ran two events like this before switching to DTC-70s up front.

Has anyone found a good solution? Not going OEM unless BMW does it for free under warranty/free maintenance because it's just going to happen again. I'm a little worried about reports on here that the RB dust boots fail after exposure to the cold (this is kind of funny when you think about it). The Brembos perform so well outside of this brutal design flaw that spending huge cash on a BBK just isn't an appealing option for me.
Their dust boots were fine according to the reports - it's their fluid seals seated at the bottom of the piston bores that failed in very cold temperatures. RB determined the size of their seals could be just slightly different than the stock ones, causing the failure.

We are in same boat about the BBK option - trying my best to avoid it if I can.
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      04-06-2015, 10:04 PM   #47
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Thanks for the clarification Bullitt. I may go ahead and give the RB boots a shot then.
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      04-07-2015, 07:33 AM   #48
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Quote:
Originally Posted by 02rsxpilot View Post
Thanks for the clarification Bullitt. I may go ahead and give the RB boots a shot then.
I suppose the RB high temp boots, and stainless steel vented pistons are still worthwhile at this point, just not their piston seals.

I suppose the Centric seals and dust boots are sold together through.
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      04-13-2015, 08:47 AM   #49
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After my brake service job yesteday (Motul RBF600 fluid replacement, inner-to-outer pad swap, clean up of all contact points, and thin coat of copper grease), I noticed that one of my driver side pistons had begun to chip. Dust boots are disintegrated as well, but I dont care as much about that. I used my Dremel to carefully smooth out the chip with very good results, and will start the lapping season like this.

Will be ordering pistons soon. Will email RB to see if that have their piston seal issue sorted out for owners that see freezing weather. If not, will order seals from Zeckhausen, boots and pistons from RB.

Any one know of a good DIY to the 135i caliper rebuild?
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Last edited by dcaron9999; 05-17-2015 at 06:27 PM..
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      04-13-2015, 07:45 PM   #50
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While I was on the RB site today, contemplating ordering their caliper rebuild kit, to my surprise the kits are no longer available or at least, they have been "temporarily" removed from their web site.

Would have been nice to order their stainless steel vented pistons...
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      04-14-2015, 01:21 AM   #51
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Here's a 135i rebuild DIY with the RB pistons - also provides direct ordering links to the RB front and rear kits. Two things to note in the DIY: 1) use brake fluid or compatible lube when installing seals/pistons; 2) compressed air at 90psi is unnecessarily high

Seals and dust boots by Centric for rebuilding:
Front: http://store.zeckhausen.com/catalog/...oducts_id=8954

Rear: http://store.zeckhausen.com/catalog/...oducts_id=8953
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      05-17-2015, 01:58 PM   #52
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Ordered these Centric pressure seals but they're unfortunately different in size compared to the stock seals.

I posted in more detail here:
http://www.1addicts.com/forums/showp...9&postcount=46

Last edited by Bullitt; 05-17-2015 at 07:02 PM.. Reason: Meant pressure seals, not dust boots. Post corrected.
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      05-17-2015, 04:12 PM   #53
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For the hardcore track guys, maybe it's time you upgrade the fronts to Stoptech BBK. Turner has 20% off now. If you were ever on the fence, now would be the time to buy new. $3200 down to $2600 or so. It's a huge investment but there's a lot of benefits:
  • Don't have to worry about caliper rebuilds
  • Fade resistance
  • Larger rotors = more inertia = better stopping
  • Weight savings of 6lbs per corner
  • Pad swap can be done in 10 min per side once wheels are off

Downside is rotors/pads are more expensive and you may need spacers or bigger wheels to clear the calipers. I have the ST40's on my Z and I'm a big fan of them. And FWIW upgrading fronts only will not change bias neither.

http://www.turnermotorsport.com/show...e-kit-e82-135i
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      05-17-2015, 06:43 PM   #54
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Quote:
Originally Posted by 3002 tii View Post
For the hardcore track guys, maybe it's time you upgrade the fronts to Stoptech BBK. Turner has 20% off now. If you were ever on the fence, now would be the time to buy new. $3200 down to $2600 or so. It's a huge investment but there's a lot of benefits:
  • Don't have to worry about caliper rebuilds
  • Fade resistance
  • Larger rotors = more inertia = better stopping
  • Weight savings of 6lbs per corner
  • Pad swap can be done in 10 min per side once wheels are off

Downside is rotors/pads are more expensive and you may need spacers or bigger wheels to clear the calipers. I have the ST40's on my Z and I'm a big fan of them. And FWIW upgrading fronts only will not change bias neither.

http://www.turnermotorsport.com/show...e-kit-e82-135i
I dont doubt that a BBK would solve a lot of headaches, but an RB Stainless Steel piston + high temp boots is $450USD, versus $2600USD. Ive been tracking my tuned 135i for three seasons on stock pistons + boots + Ti shields. At this rate, I figure the RB SS rebuild kit may outlast the car.

I love my consistent braking power now, with PMU Club Racer RC09 pads, cooling ducts, fresh front Centric rotors, and stock front+rear calipers. I can switch between my summer style 261's and my winter style 73's that both clear the stock calipers.
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2011 X3 35i with M pack + 2011 135i w/6SPMT | 255 square tire setup | Quaife 3.46 LSD | Diff lock down bracket | Bilstein B8+Swift SpecR springs+H&R FSB | CDV delete | BMS Oil Tstat bypass | ER FMIC & CP | N54Tuning DP | GC Street Camber Plates | M3 FCA +guide rods+RSFB's+Tranny mounts | Manzo toe arms | Cobb Stg2 agressive tune | Hawk DTC70 brake pads | RB SS brake pistons | Goodridge SS brake lines | Custom brake cooling ducts

Last edited by dcaron9999; 05-21-2015 at 08:43 AM..
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