How to Determine When Car Brake Fluid Must Be Replaced?

1 Answers
Brooke
07/29/25 11:53am
Methods to determine when car brake fluid must be replaced: 1. Visual Inspection: Open the brake fluid reservoir cap; if the brake fluid appears cloudy or black, it must be replaced immediately. 2. Hard Braking Test: Drive at a speed above 40 km/h and then brake hard. If the braking distance is noticeably longer, it can generally be concluded that there is an issue with the brake fluid, and it should be checked for replacement. 3. Soft or Unstable Braking During Normal Driving: If the brake pedal feels soft when pressed, it is time to consider replacing the brake fluid. Frequent braking generates high temperatures, causing the absorbed water in the brake fluid to turn into steam, which creates air bubbles in the fluid and leads to unstable braking performance.
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