Common causes of brake fluid loss include steel brake line leaks, leaking rubber brake hoses, leaking caliper or wheel cylinder seals, a leaking master cylinder, or a power brake booster failure. Corrosion from old, moisture‑laden brake fluid and physical damage (impact, road debris) accelerate many of these failures.
If you have questions about brake fluid leaks, talk to our service advisors or see our Brake Repair in Ann Arbor page for details about our brake repair services.