What components are critical to inspect for proper brake fluid maintenance?

Proper brake fluid maintenance is vital for the overall safety and functionality of a vehicle's braking system. The critical components to inspect include hydraulic lines and brake pads.

Hydraulic lines are essential because they contain the brake fluid that transmits force from the brake pedal to the brake components at the wheels. If there are any leaks, cracks, or signs of wear in these lines, it can lead to a loss of brake pressure or fluid, severely compromising braking performance and safety.

Brake pads are also crucial because they directly interact with the brake rotors to create the friction necessary for slowing down or stopping the vehicle. Inspecting the condition of brake pads ensures they are not worn down beyond safe limits, which can affect the braking efficiency and lead to increased stopping distances.

In contrast, other components like the engine and battery, or wheels and steering, while important for vehicle operations, are not directly related to brake fluid maintenance or the effectiveness of the braking system. Brake pads and hydraulic lines specifically relate to the hydraulic braking system and the hydraulic fluid's integrity, making them key areas of focus during maintenance.