BMW R1200GS brake-fluid funnel for servo by jlovold

Last crawled date: 2 years, 10 months ago

I required a tool to help flush the brake-fluid in my 2005 BMW R1200GS, without introducing air into the servo-assisted circuits. And I did not want to spend lots of money and time waiting for it to arrive. As far as I know, this funnel should fit most of BMW R and K-models from 2002-2007, that are outfitted with servo-assisted brakes.
It may not directly fit some models other than the R1200GS, but that should be pretty easy to fix, by only printing the lower, narrower part, and using some DOT 4 resistant sealant to fit a taller funnel to it
If you want to make an improved version, the thread used is M18x2.5mm.
This is not the actual model I made for myself, but a slightly improved one, that is a bit taller, with thicker walls, and a larger volume.
BE VERY AWARE, THAT IF YOU DO NOT HAVE A SOLID UNDERSTANDING OF HOW THE SERVO-ASSIST SYSTEM WORKS; YOU SHOULD NOT ATTEMPT TO DO IT YOURSELF.
ALSO, BE AWARE THAT ANY DEBRIS INTRODUCED INTO THE SYSTEM, OR SIMPLY FAILURE TO MAINTAIN THE BRAKE-SYSTEM, MAY RENDER THE BRAKES INOPERABLE, OR EVEN LOCK THEM UP AT SPEED.
WHEN THEY WORK PROPERLY, THEY ARE INCREDIBLY EFFECTIVE, BUT THEY ARE ALSO KNOWN FOR THEIR POTENTIALLY LETHAL MODES OF MALFUNCTION.
USE THIS TOOL ON YOUR OWN RISK!
How to do the job (not my videos):
Video 1:
www.youtube.com/watch?v=YLM25NYvlas
Video 2:
www.youtube.com/watch?v=a1ktxY_bgQY
(Sorry for disabling the links, but they killed the pictures.)