What must be checked regarding the braking system during an inspection?

During an inspection of the braking system, ensuring proper function and the absence of leaks is crucial for maintaining vehicle safety. The braking system is a critical component that directly affects the ability of a vehicle to stop effectively. Inspectors must verify that the brakes respond correctly when engaged, which includes testing the pedal feel and assessing the overall braking performance. Additionally, checking for leaks ensures that hydraulic brake fluid is contained within the system, as leaks can lead to brake failure and pose significant safety risks.

Other factors, while potentially relevant to the overall maintenance of the vehicle, do not hold the same immediate importance during a safety inspection. For example, the color of the brake fluid may indicate its condition, but it doesn't directly affect the braking system's safety if there are no visible leaks or issues. The presence of an anti-lock system is more about vehicle features than the basic operability of the brakes themselves. Similarly, while the size of the brake pads can be important for maintenance schedules, the immediate concern during a safety inspection is whether or not the brakes function properly and are free from leaks, making that the primary focus.