If you never change your brake fluid, several serious and potentially dangerous problems will develop over time in your vehicle's braking system.
At Hoover Street Auto Repair in Ann Arbor, MI, we regularly see the consequences of neglected brake fluid in vehicles throughout the Ann Arbor area. Because brake fluid absorbs moisture from the environment, old fluid accumulates moisture that significantly lowers its boiling point. When you apply your brakes, especially during hard braking or driving down a hill, the heat can cause the moisture to boil, creating steam pockets in your brake lines. These air bubbles result in a spongy, unresponsive brake pedal that requires more pressure to stop your vehicle, dramatically increasing your stopping distance and creating a serious safety hazard on Ann Arbor roads.
The moisture in contaminated brake fluid also causes internal corrosion of expensive brake system components, including brake calipers, wheel cylinders, master cylinders, brake lines, and ABS modulators. At Hoover Street Auto Repair, we've seen severely corroded brake components that required thousands of dollars in repairs, damage that could have been prevented with simple brake fluid changes every 2-3 years.
Additionally, degraded brake fluid can cause brake components to stick or seize, leading to uneven brake pad wear, brake pull to one side, or even complete brake failure. Old brake fluid may also develop a dark, murky appearance and can leak from corroded components, further compromising your vehicle's braking performance. For Ann Arbor drivers, Michigan's temperature extremes and humidity make regular brake fluid changes especially critical to maintain safe, reliable braking performance.