What is essential to check when inspecting the brake system?

When inspecting the brake system, it is vital to check the fluids and wear indicators. The brake fluid is essential for proper brake function, as it transfers force from the brake pedal to the brake components. Low fluid levels or contaminated fluid can lead to brake failure, which is why checking the fluid condition and level is critical.

In addition to fluids, wear indicators help determine the condition of brake pads and shoes. These indicators provide a visual cue or an audible warning when the brake components are worn down and need replacing. Regularly monitoring these aspects ensures that the braking system operates effectively and safely, allowing for timely interventions before potential failures occur.

While checking the other aspects mentioned might have their importance in different contexts, they do not directly influence the immediate functionality and safety of the braking system as much as the fluids and wear indicators do.