Brake Fluid Flush
A maintenance service that replaces all old, moisture-contaminated brake fluid with fresh fluid to maintain braking performance.
A brake fluid flush is a vital maintenance service that removes all existing brake fluid from the master cylinder, lines, and calipers, replacing it with clean, fresh fluid. Because brake fluid is glycol-based and hygroscopic, it naturally absorbs moisture from the air over time, even in a sealed system.
Moisture in brake fluid lowers its boiling point. During heavy braking, the intense heat can cause water in the fluid to boil, creating air pockets. Since air is compressible, this leads to a spongy brake pedal and a dangerous loss of stopping power. Moisture also causes internal rust and corrosion in the master cylinder, steel lines, and ABS module.
Most manufacturers recommend a brake fluid flush every two years or 30,000 miles. During the service, a technician pushes fresh fluid through the system until clean fluid exits each wheel's bleeder screw, ensuring all moisture and dark, oxidized fluid are removed.