Automotive Service Excellence (ASE) Brakes Certification Practice Exam

Lubricant degradation in brake systems can lead to corrosion of brake components. As lubricants break down, they lose their protective qualities, which can cause metal surfaces to be exposed to moisture and contaminants. This exposure can result in rust and corrosion, affecting the integrity and performance of components like calipers, rotors, and brake lines.

In contrast to this, increased brake efficiency would be associated with well-maintained systems and not a result of lubricant degradation. Excessive braking noise might occur due to other factors such as worn pads or improper installation rather than directly from degraded lubricant. Improved fluid viscosity suggests the lubricant is performing well; however, degradation typically refers to a decrease in the effectiveness of the lubricant rather than improvement. Therefore, the impact of lubricant degradation significantly compromises the lifespan and reliability of the brake system through corrosion.