Why bleed brakes?
• Fresh brake fluid has a significantly higher boiling point than old fluid, allowing harder braking without fade. This is because brake fluid is hygroscopic and readily absorbs moisture. The more moisture in the fluid, the lower the boiling point. • That same moisture promotes corrosion. Frequent bleeding with fresh fluid allows brake components to last longer. A well maintained brake system can help you avoid ever having to replace calipers, master cylinder or an expensive ABS control unit. • The bleeding process, done properly, removes air bubbles from the hydraulic system, resulting in firmer brake pedal feel and more linear, responsive braking performance. Too much air in the system can be dangerous and result in the pedal sinking to the floor. Air is compressible, brake fluid is not. How much brake fluid is required? It is usually possible to bleed all four corners of the car with somewhere between 1/2 and one liter of brake fluid. If you’ve just installed new brake lines or a bi