Buy and sell spare parts for Toyota Prius on Bamper.by: https://bamper.by/zchbu/marka_toyota/... The braking system is the key to safe driving. A driver who cares about the lives of passengers is obliged to monitor the brakes and change the fluid in them in time. Brakes have no right to fail! How often should the brake fluid be changed and what car signals can tell you this? FOR REFERENCE: Brake fluid acts as a pressure transmitter from the master brake cylinder (MBC) to the working ones. The driver presses the pedal, the MBC (a simple piston in a housing with a valve system) sends fluid pressure through the lines. The fluid transmits pressure to the working cylinders (calipers), the pistons extend and spread the pads. The pads are pressed with force against the working surface of the discs or drums. And due to the friction force that arises between these elements, the car stops. Water in the volume of brake fluid reduces its resistance to boiling. The actual boiling point of good brake fluids reaches 290°C. When adding only 3.5% of water to the brake fluid from its total volume, the boiling point will drop to +155°C (approximately 30%). The main properties of brake fluid include: incompressibility; resistance to low and high temperatures; neutral attitude to plastic, rubber and metal parts of the system; good lubricating properties. Brake fluid should be changed at least once every 2 years (30 - 60 thousand km of mileage) and each manufacturer relies on regulations, relying on the composition of the fluid and its properties. An important property is incompressibility (the fluid should clearly, without delays and fully transfer pressure to the working cylinders or calipers). On sports cars, brake fluid should be replaced after 15 thousand km, since the speed limits on such cars are much higher. Such indicators are approximate. It is necessary to monitor the color of the liquid, if there is turbidity or sediment, then it is necessary to change the brake fluid earlier. At the service station, special testers are used to check the liquid, determining the percentage of moisture and displaying data on the need for replacement on the board. An equally significant reason for replacing the liquid are the chemical properties of various additives, which over time, begin to decompose, contributing to the loss of their properties. A bell about an urgent replacement of brake fluid can be a depressurization of the brake system. In addition to the fact that some of the liquid can leak out, so what remains is quickly saturated with oxygen and the boiling point of the brake fluid decreases. For details on how to replace the brake fluid on a third-generation Toyota Prius hybrid passenger car, which was produced by the Japanese company Toyota from 2009 to 2015, watch our video.