How should you conduct a hydraulic brake check?

The method of pumping the brake pedal three times and then holding it down for five seconds is an effective way to perform a hydraulic brake check. This procedure helps to identify any potential issues with the brake system.

When you pump the brake pedal, you build up hydraulic pressure in the braking system. By holding the pedal down after the series of pumps, you can assess whether the pedal sinks or remains firm. If the pedal sinks, it may indicate a brake fluid leak or other problems within the hydraulic brake system, which require immediate attention. This check is critical for ensuring the safe operation of the vehicle, as functioning brakes are essential for effective stopping power.

This method of checking the brakes focuses on the hydraulic system's integrity, which is vital for safety during driving. Other choices such as engaging the emergency brake without checking the hydraulic system, simply pressing the pedal for a short period, or testing brakes at slow speed do not adequately assess the health of the hydraulic braking system in the same thorough manner.