We all know that pushing down on the brake pedal slows a car to a stop. But how does this happen? How does your car transmit the force from your leg to its wheels? How does it multiply the force so that it is enough to stop something as big as a car?
When you depress your brake pedal, your car transmits the force from your foot to its brakes through a fluid. Since the actual brakes require a much greater force than you could apply with your leg, your car must also multiply the force of your foot.
Brake pads do not last forever and gradually they will wear out. This means that they will need to be replaced. Brake pads should be inspected on a regular basis and they should be replaced as soon as they have worn down to their minimum, or when a brake warning light appears on your dashboard.
Brake discs need to be replaced every so often. It is a good idea
Brake fluid needs to be changed too. Moisture is absorbed into
GSF Car Parts sell an electronic tester too measure moisture content. New fluid should always be stored in a sealed container