When to Replace Brake Pads?
2 Answers
Brake pads should be replaced after the car has traveled 80,000 kilometers or every 4 years, but the replacement time may vary depending on the vehicle's usage. Brake pads are a crucial component of the automotive braking system, consisting of a steel plate, friction material, and an insulating layer. They achieve braking by squeezing the brake disc to create friction during braking. The following symptoms indicate that it's time to replace the brake pads: 1. When the thickness is reduced to below 0.5cm, a new brake pad should be installed; 2. Sound: If the car produces squealing or hissing noises during braking, it's time to replace the brake pads; 3. If you feel that the braking is weak, the brake pedal feels heavy, or the braking distance is too long, new brake pads should be installed.
I've been driving for over ten years, and the most reliable signal for changing brake pads is when they become thinner. New brake pads normally have a thickness of about ten millimeters, and when they're worn down to just three millimeters, it's time to replace them immediately. Otherwise, they'll start making noise due to friction while driving. Many cars have built-in wear indicators—when you hear a continuous squealing sound while braking, that's a reminder to change them. Additionally, noticeably longer braking distances or a soft, spongy feeling when braking are also warning signs. I recommend getting them checked by a professional at least every 20,000 kilometers, especially since city traffic with frequent stops and starts wears them out faster. Ignoring this not only risks damaging the brake discs but also increases the chance of accidents—safety comes first! Developing a habit of avoiding sudden braking can also help extend their lifespan.