Does Brake Fluid Need to Be Replaced?

1 Answers
McSilas
07/24/25 9:08am
Brake fluid needs to be replaced, and the replacement method is as follows: 1. Place the vehicle on an inspection pit or lift it with a jack; 2. Clean the drain port, remove the dust cap, loosen the drain screw, repeatedly press the brake pedal until the fluid runs clear, then tighten the drain screw; 3. Add new brake fluid. Characteristics of brake fluid: 1. Very low freezing point: maintains good fluidity in low temperatures; 2. High boiling point: prevents vapor lock under high temperatures; 3. Minimal quality changes: does not cause corrosion to metal or rubber. The function of brake fluid is to transmit hydraulic pressure from the master cylinder to the wheel cylinders, where the pistons, under the action of the seals, push out to apply force on the brake discs and pads, thereby enabling the braking function.
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