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  #1  
Old 21 Apr 2014
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Originally Posted by *Touring Ted* View Post
As you can guess, only a main dealer can do this with the computer to activate the pump.
So new, upgraded, latest GS but.... , same old- same old eh Ted?!
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Old 21 Apr 2014
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Yes yes, master cylinder has the nipple and I did it as well ... .
Dont think I had additional air coming into the system when i did the bleeding.

Is the BMW dealer doing anything else than the guy in these videos?
BMW 4V ABS-integral Part 1- Część 1 wymiana płynu - brake fluid exchange - YouTube
BMW 4V ABS-integral Part 2- Część 2 wymiana płynu - brake fluid exchange - YouTube
Though I dont think he is working on the same model as I have.

What I cant really believe is the necessity of the special BMW unit. If it is a closed system of fluids, why the hell would it not be possible to press all fluid out? Or, where would the air exactly hold position? In the places the guy in the video is working on?
Thanks, T.
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Old 21 Apr 2014
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Originally Posted by thomaslehmen View Post
Yes yes, master cylinder has the nipple and I did it as well ... .
Dont think I had additional air coming into the system when i did the bleeding.

Is the BMW dealer doing anything else than the guy in these videos?
BMW 4V ABS-integral Part 1- Część 1 wymiana płynu - brake fluid exchange - YouTube
BMW 4V ABS-integral Part 2- Część 2 wymiana płynu - brake fluid exchange - YouTube
Though I dont think he is working on the same model as I have.

What I cant really believe is the necessity of the special BMW unit. If it is a closed system of fluids, why the hell would it not be possible to press all fluid out? Or, where would the air exactly hold position? In the places the guy in the video is working on?
Thanks, T.

Air can hide in all sorts of places...

Is there any reason that air could have got into your ABS control unit ??

Did you bleed the brakes dry ??

Bleeding brakes can be difficult no matter how experienced you are at it.

You could also try reverse bleeding from the calliper. It can really help if you can't shift some air.
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Old 21 Apr 2014
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hmm, wrong term? Bleeding brakes means letting the fluid all out without replacing it right away?
I did replace it without letting air in, tube in the fluid etc..
So, Ted, you say that doing it this way there is no reason that air could go into the ABS control unit? I would not know any other reason but the mountain-braking that air was released and could be gone there as well.

Did you look at the videos? in one it seems he is activating that pump, but how? In the other he is doing it just manually, but also fitting tubes at the ABS unit.

I might just try again the usual way or from the calliper with lots of fluid and see.

Thanks,
Thomas
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Old 22 Apr 2014
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Quote:
Originally Posted by thomaslehmen View Post
hmm, wrong term? Bleeding brakes means letting the fluid all out without replacing it right away?
I did replace it without letting air in, tube in the fluid etc..
So, Ted, you say that doing it this way there is no reason that air could go into the ABS control unit? I would not know any other reason but the mountain-braking that air was released and could be gone there as well.

Did you look at the videos? in one it seems he is activating that pump, but how? In the other he is doing it just manually, but also fitting tubes at the ABS unit.

I might just try again the usual way or from the calliper with lots of fluid and see.

Thanks,
Thomas

Do you have integral ABS (like in that video) ?? 2011 bikes should have latest generation I think..

When you pull your brake lever, can you hear an electronic pump ???


If you do have integral (pump motor) and you have bled the brakes the normal way, then you have sucked air into the ABS unit.
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Old 1 Jan 2015
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sorry Guys, late but never too Late:

check this out, after changing the front tire and pushing the calipers in and pumping them out again before I rode the bike again, the problem was gone!!!

Cheers, Thomas
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