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Thread: Bleeding brakes on 1150RT with abs?

  1. #1
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    Bleeding brakes on 1150RT with abs?

    Even though I've scheduled to have my brakes bled by a BMW dealer in Raleigh, I'd still like to know whether you can bleed them yourself if you have abs brakes. Answers greatly appreciated!

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    Registered User NavyDad's Avatar
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    Yes and there are plenty of how to threads online to help. I have the servo brake system on my 04 RT and I do mine every year. Probably overkill, but makes me feel better. It does take a bit of time and even longer on the first try. I usually allow about two hours to do the brakes and clutch. Not a difficult job, just time consuming. Save yourself some $$$ and go for it. Here is a good article for the servo brakes. http://users.rcn.com/dehager/service/service_abs3.pdf I know it looks intimidating, but really not bad at all.

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    Registered User PAS's Avatar
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    Buy yourself the funnel from beemerboneyard and save yourself the $250-$300 from the dealer.

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    I bought a funnel and the how to dvd from beemer boneyard and wasn't that bad just time consuming. And their is a dvd for sale on the fleamarket right know, its for a R1200 but the same thing.

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    ABS brake bleeding

    Sounds like something I can do. The how-to was very helpful as were the other comments. Thanks a lot!

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    Speed Bleeder

    Here's another ('nuttier) question: After looking up speedbleeder.com I found the correct application for my 1150RT: front: (2)SB8125L, rear: (1)SB6100, clutch: SB1010S. Then they list ABS unit: (4)SB7100S & (2)SB7100.
    Do I need all of these bleeders, and with "youse" guys who do their own bleeding, do you also bleed the control unit (and thus removing the gas tank) or just the front and rear? Maybe one day I won't have to ask so many questions and can answer a few (oh glorious day!)

    P.S.--I do have the dvd on the 1150 & 1200 by jvb, but I didn't see anything mentioned about bleeding the control unit that is mysteriously hidden under the fuel tank.

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    Brake Bleed

    Quote Originally Posted by gnrogers View Post
    Here's another ('nuttier) question: After looking up speedbleeder.com I found the correct application for my 1150RT: front: (2)SB8125L, rear: (1)SB6100, clutch: SB1010S. Then they list ABS unit: (4)SB7100S & (2)SB7100.
    Do I need all of these bleeders, and with "youse" guys who do their own bleeding, do you also bleed the control unit (and thus removing the gas tank) or just the front and rear? Maybe one day I won't have to ask so many questions and can answer a few (oh glorious day!)

    P.S.--I do have the dvd on the 1150 & 1200 by jvb, but I didn't see anything mentioned about bleeding the control unit that is mysteriously hidden under the fuel tank.
    You have to get to the abs unit to do the bleed. There is no way around it if you have the servo brake system. If you have a 2007 or later, no servo power assist, you do not need to get to the abs unit.

  8. #8
    Registered User NavyDad's Avatar
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    I don't have the speed bleeders, but I will have the next time I do the job. They do make it a lot easier, especially if you don't have another person to help out. Yes you need to do the front, rear, and the control circuit. I have heard that old, contaminated fluid can lead to servo unit failure. I don't know how true this is, but I do know that left unchanged brake fluid can do some nasty things to the system. I recently rebuilt the braking systems on a 96 1100GS and a 1979 Suzuki GS850. Both bikes required a complete master cylinder and caliper rebuild because of the crud and damage that moisture contaminated fluid had caused. Bleed all of it and the clutch too if it is hydraulic.

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    Bleeding ABS Circuit

    Thanks guys. So off comes the tank and right tupperware!

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    I don't have the speed bleeders but will next time. The dvd for the 1150 don't show the control unit but you do need to flush it. When I ordered the dvd from the boneyard they asked if I had the servo unit, and if I did to order the R1200 dvd it show how to do it.
    Last edited by josh00; 04-07-2012 at 11:46 AM.

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    Speed bleeders

    I noticed at speed bleeders website that they have BMW adapters. Do I need those or are the speed bleeders listed for my 1150rt all that I need? Thanks!

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    Quote Originally Posted by gnrogers View Post
    I noticed at speed bleeders website that they have BMW adapters. Do I need those or are the speed bleeders listed for my 1150rt all that I need? Thanks!
    When I purchased SpeedBleeders for my '04 GS there was no special designation for BMW, so I'm unsure what the adapters would be.
    I've bled my servo-ABS brakes yearly since purchasing my GS in 2004. If I had it to do over again I would only buy the SpeedBleeders for the 3 brake calipers and the clutch. I have found them to be invaluable in doing the fluid changes for the clutch and brake system. The 6 SpeedBleeders on the ABS unit don't really help that much because you're standing right next to the ABS unit as you bleed it and it is very easy to close off the OEM bleeders after forcing fluid through the system.
    I've always used the instructions for bleeding ABS 3 (aka iABS) brakes in Advrider.com' s Hall of Wisdom http://advwisdom.hogranch.com/Wisdom/
    2004 R 1150 GS

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    Sped Bleders

    Thanks. You answered my question perfectly!

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    Front brake bleeders

    I looked at my front calipers today and discovered that both of the bleed screws appear to be the same. I'm pretty sure neither of them has a grub screw. That said, as there any way to tell the difference from the outside between the standard BMW bleeder and a speed bleeder? I feel sure mine are the standard bleeders, but would like to know if there's any different appearance.

  15. #15
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    Bleeder on left is speed bleeder note smaller hole and you can see insert in bleeder holding check valve.

    Bleeder on right is BMW has larger hole and is one peice.

    Device above is a one man brake bleeder from parts store. Just a bleeder you attach when you need it. Does same thing as speed bleeder.
    Attached Images Attached Images

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