I performed my 2 year brake fluid exchange several weeks ago. I pressurized the reservoir to 20 psi and bleed the wheel brake calibers starting at the right rear, working from the farthest to the closest to the reservoir. Only problem I had was that I used more fluid than I should have because the color difference between the old and new fluid was not easily discernible. It would be great to know how much fluid should be bleed from each wheel brake caliber if the old fluid is suctioned from the reservoir and replaced with new fluid. I guess it could be approximated if the lengths of the brake lines were known, assuming they all had the same inner diameter. The shop manual has a diagram but I doubt if it is to scale. Does anyone know the actual lengths of the brake lines?
WeGla250
You can get brake fluid that has dye added that gives you different colors. This way when the color changes you can see it very different.
Okay to mix brand as you are replacing like 99.9% of it, as when you see the new color you have replaced that line as you moved to the other you are replacing them and the reservoir will be refilled each time with new color. just keep the same DOT rating as required by MB.
Wayne did some checking and it appears that the US government has now stopped the sell of blue brake fluid after over 15 years of it being on the market. They have came to realize it is blue in color and the US reg is that brake fluid must be clear or amber. This is as of 2013 ruling. I had bought the blue in early 2013.
To change brake fluid you can rotate between the clear and amber to see a color change when bleeding the brake doing a brake fluid change. one change clear and next change amber, next time use clear and so forth.
To change brake fluid you can rotate between the clear and amber to see a color change when bleeding the brake doing a brake fluid change. one change clear and next change amber, next time use clear and so forth.
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