How Often Should the Brake Fluid of a Mercedes-Benz Be Replaced?

1 Answers
MacBeau
07/30/25 4:06am
For the Mercedes-Benz E-Class, it is recommended to replace the brake fluid every 2 years, but this interval can vary depending on usage. Brake fluid is somewhat corrosive and highly hygroscopic. Many service stations now have specialized tools to test the water content in brake fluid, so you can perform a test to determine if replacement is necessary. Below is an introduction to the braking system: 1. Brake Fluid: The purpose of brake fluid in the Mercedes-Benz E-Class Brake fluid, also known as automotive brake fluid, was used in early cars with mechanical drum brakes. With the advancement of hydraulic technology, safe and reliable hydraulic braking systems became widely used in vehicles. Automotive brake fluid is the liquid used in the hydraulic braking system. When the driver presses the brake pedal, the force applied is transmitted by the master cylinder piston through the brake fluid to the wheel cylinders, causing the brake pads to expand and stop the vehicle. When the brake is released, the return springs pull the brake pads back to their original position. 2. Function: Brake fluid serves as a force transmission medium throughout this process. In the automotive braking system, brake fluid acts as a transmission medium. When the brake pedal is pressed, with the assistance of the vacuum booster, it pushes the master cylinder, which in turn pushes the brake fluid, transmitting the force from the foot to the wheel cylinders at each of the four wheels. The wheel cylinders then push the brake pads, which squeeze the brake discs to generate braking force.
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