[Disclaimer] This is on my MB C280. Hoping someone here may have some wisdom.

Master Cylinder Reservoir Cleaning

Has anyone removed the reservoir from the master cylinder to clean it? I have a layer of black scum at the "waterline" of my reservoir, and I would like to remove it to clean it. My thought is to slightly depress the brake pedal to close off the fluid ports, drain, and remove the reservoir. After cleaning and drying, I will re-install the reservoir, and fill with new fluid, then bleed the brakes.

Thank you.

Comments?