Use brake fluid test strips or a pen tester to measure brake fluid quality, condition and color. Old or contaminated brake ...

Take it to an auto mechanic to replace your brake fluid if the strip's color falls in the “required service” category. My brake fluid read at 30, which means it didn’t need immediate service.

This is to tell you that your brake fluid needs replacing ... The most confusing color that the Mini Cooper uses is yellow because this color is not just used for routine service indicators.