How Often Should Original Brake Fluid Be Replaced?

1 Answers
BellaRose
07/29/25 3:24am
Original brake fluid is recommended to be replaced every 2 years, but the actual replacement interval mainly depends on individual driving habits, road conditions, and environmental factors. Therefore, there is no specific replacement time or mileage standard. The replacement cycle for brake fluid varies among different car brands as specified in their official maintenance schedules. This is related to the brand of brake fluid and the vehicle model. Brake fluid has certain corrosive properties and strong water absorption. Many repair shops now have specialized tools to test the water content in brake fluid, allowing for a check to determine if replacement is needed. The vehicle's braking system consists of brake pads, brake discs, brake calipers, the booster pump, and brake fluid working together. Brake fluid, also known as hydraulic brake fluid, primarily functions to transmit pressure to the brake calipers. It has four main functions: energy transmission, rust and corrosion prevention, heat dissipation, and lubrication. Failing to replace it promptly as described in the maintenance manual can lead to severe consequences.
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