Why is the braking sound harsh?

[GabrielaMarie]

Harsh braking sounds may be caused by worn brake pads, foreign objects in the brake pads, or the break-in period of newly replaced brake pads. Below are the relevant explanations: 1. Worn brake pads: When a car has been used for many years or has high mileage, the brake pads may age and wear out, leading to abnormal noises. In this case, the brake pads should be replaced at a 4S shop. 2. Foreign objects in the brake pads: If the car has driven through muddy or bumpy roads, small stones or other debris may get stuck in the brake pads, causing friction and abnormal noises. This situation only requires cleaning the brake pads. 3. Break-in period of newly replaced brake pads: When new brake pads are installed, there might be some noise initially. This usually resolves after driving for a while to allow the pads to break in. If the noise persists after some time, it is advisable to visit a 4S shop or repair shop for professional inspection.

[StDonovan]

I've been driving for twenty years and have encountered several instances where the brakes emitted a piercing screech. That sound is truly distressing, usually caused by excessively worn brake pads. When the friction material of the pads is completely worn away, the metal part directly scrapes against the brake disc, like a knife scratching metal. This is especially noticeable in damp or dusty environments; rainwater or dust getting stuck between the pad and disc changes the friction coefficient, making noise more likely. Another common cause is an uneven brake disc surface, possibly due to scratches or rust. I remember one time after heavy rain, the braking sound was extremely loud, and upon inspection, the pads were nearly worn out. Ignoring it can have serious consequences—increased braking distance, inability to stop in emergencies, posing significant safety risks. It's advisable to get a professional inspection as soon as you hear the noise; don't delay. Regular pad replacements can prevent many issues.

[McErin]

As a car enthusiast, I often tinker with my own vehicle. The screeching sound from brakes is primarily attributed to abnormal friction. The causes are varied: if the brake pads are excessively worn, the metal backing plate scraping against the brake disc can produce a sharp noise; or the brake disc surface may have dents, scratches, or unevenness; additionally, accumulated dust and moisture can interfere with normal friction. Material also plays a key role—for instance, metallic pads are noisier than ceramic ones. Installation issues, such as seized caliper slide pins or improper clearance, can also be culprits. Early detection is straightforward: visually inspecting pad thickness or listening for the noise location can determine if it's a wear issue. Prompt action can prevent damage to more expensive components and even enhance overall braking system efficiency. The sound often becomes more pronounced when driving in the rain, as slippery surfaces exacerbate these abnormalities.

[StEvelyn]

Every time I hear a screeching sound when braking, I become particularly concerned about safety. That noise often indicates the brake pads are too thin or the surface is dirty, causing metal friction. If not repaired, the brakes may fail, increasing the risk of skidding on wet roads during rainy days. I make it a habit to have a mechanic check immediately after parking to prevent the issue from escalating and endangering driving. From personal experience, ignoring minor noises can lead to major troubles, so early repairs ensure safety.

[LaAnthony]

I always maintain my car meticulously, and brake noise is often caused by inadequate maintenance. Worn-out pads or accumulated dust can easily lead to friction sounds. If not replaced, they may wear down the brake discs, leading to more expensive repairs. It's recommended to check pad thickness and clean the system every 20,000 kilometers. Pay attention to any sharp noises after rain, as early resolution ensures peace of mind and safety.